./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.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_get_at_harness.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 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:34:25,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:34:25,377 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:34:25,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:34:25,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:34:25,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:34:25,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:34:25,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:34:25,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:34:25,410 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:34:25,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:34:25,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:34:25,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:34:25,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:34:25,413 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:34:25,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:34:25,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:34:25,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:34:25,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:34:25,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:34:25,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:34:25,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:34:25,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:34:25,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:34:25,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:34:25,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:34:25,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:34:25,416 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 -> 077859a827b9835fc70ffe4bef1d8360e024e130f860bf1f8321474f6266da95 [2025-03-04 02:34:25,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:34:25,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:34:25,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:34:25,746 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:34:25,746 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:34:25,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2025-03-04 02:34:27,033 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98349a07/cd3bd406af0b4b6e8567fff863437b88/FLAG507dd030c [2025-03-04 02:34:27,521 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:34:27,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_get_at_harness.i [2025-03-04 02:34:27,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98349a07/cd3bd406af0b4b6e8567fff863437b88/FLAG507dd030c [2025-03-04 02:34:27,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f98349a07/cd3bd406af0b4b6e8567fff863437b88 [2025-03-04 02:34:27,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:34:27,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:34:27,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:34:27,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:34:27,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:34:27,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:34:27" (1/1) ... [2025-03-04 02:34:27,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709691d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:27, skipping insertion in model container [2025-03-04 02:34:27,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:34:27" (1/1) ... [2025-03-04 02:34:27,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:34:27,926 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_get_at_harness.i[4495,4508] [2025-03-04 02:34:27,935 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_get_at_harness.i[4555,4568] [2025-03-04 02:34:28,856 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,858 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,859 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,860 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,867 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,869 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,873 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,874 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:28,875 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,481 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,489 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:34:29,605 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:34:29,621 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_get_at_harness.i[4495,4508] [2025-03-04 02:34:29,626 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_get_at_harness.i[4555,4568] [2025-03-04 02:34:29,680 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,681 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,681 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,681 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,682 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,686 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,687 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,688 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,689 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,799 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,806 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7769-7780] [2025-03-04 02:34:29,841 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,842 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:34:29,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:34:30,003 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:34:30,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30 WrapperNode [2025-03-04 02:34:30,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:34:30,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:34:30,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:34:30,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:34:30,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,136 INFO L138 Inliner]: procedures = 680, calls = 1679, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 656 [2025-03-04 02:34:30,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:34:30,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:34:30,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:34:30,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:34:30,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,153 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,237 INFO L175 MemorySlicer]: Split 313 memory accesses to 6 slices as follows [238, 2, 55, 3, 9, 6]. 76 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 1, 5, 0]. The 239 writes are split as follows [232, 0, 3, 1, 1, 2]. [2025-03-04 02:34:30,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:34:30,335 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:34:30,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:34:30,337 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:34:30,338 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (1/1) ... [2025-03-04 02:34:30,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:34:30,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:30,378 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 02:34:30,393 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 02:34:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:34:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:34:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:34:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:34:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:34:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:34:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:34:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:34:30,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:34:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:34:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:34:30,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:34:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:34:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:34:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:34:30,712 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:34:30,714 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:34:30,758 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:34:30,786 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 02:34:30,818 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:34:30,869 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2796: havoc #t~ret81;havoc #t~ite83.base, #t~ite83.offset;havoc #t~ret82.base, #t~ret82.offset; [2025-03-04 02:34:30,973 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 02:34:30,979 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:34:31,005 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7390: havoc #t~ret683.base, #t~ret683.offset; [2025-03-04 02:34:36,517 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3512: havoc aws_array_list_get_at_#t~ret279#1; [2025-03-04 02:34:36,617 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-03-04 02:34:36,617 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:34:36,633 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:34:36,635 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:34:36,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:34:36 BoogieIcfgContainer [2025-03-04 02:34:36,636 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:34:36,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:34:36,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:34:36,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:34:36,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:34:27" (1/3) ... [2025-03-04 02:34:36,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b9c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:34:36, skipping insertion in model container [2025-03-04 02:34:36,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:34:30" (2/3) ... [2025-03-04 02:34:36,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b9c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:34:36, skipping insertion in model container [2025-03-04 02:34:36,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:34:36" (3/3) ... [2025-03-04 02:34:36,644 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_get_at_harness.i [2025-03-04 02:34:36,658 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:34:36,660 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_get_at_harness.i that has 18 procedures, 184 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-04 02:34:36,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:34:36,722 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;@3057466b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:34:36,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:34:36,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-04 02:34:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-04 02:34:36,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:36,742 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:36,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:36,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash -753177320, now seen corresponding path program 1 times [2025-03-04 02:34:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:36,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893281146] [2025-03-04 02:34:36,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:42,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 02:34:42,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 02:34:42,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:42,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:43,671 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2025-03-04 02:34:43,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:43,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893281146] [2025-03-04 02:34:43,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893281146] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:43,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482830723] [2025-03-04 02:34:43,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:43,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:43,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:43,677 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 02:34:43,678 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 02:34:48,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 02:34:49,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 02:34:49,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:49,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:49,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 4277 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:34:49,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:34:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2025-03-04 02:34:49,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:34:49,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482830723] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:49,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:34:49,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:34:49,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034430591] [2025-03-04 02:34:49,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:49,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:34:49,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:49,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:34:49,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:34:49,255 INFO L87 Difference]: Start difference. First operand has 184 states, 110 states have (on average 1.2) internal successors, (132), 111 states have internal predecessors, (132), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:34:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:49,291 INFO L93 Difference]: Finished difference Result 361 states and 511 transitions. [2025-03-04 02:34:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:34:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134 [2025-03-04 02:34:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:49,301 INFO L225 Difference]: With dead ends: 361 [2025-03-04 02:34:49,301 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:34:49,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 02:34:49,308 INFO L435 NwaCegarLoop]: 240 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, 240 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 02:34:49,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:34:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:34:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:34:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.1650485436893203) internal successors, (120), 104 states have internal predecessors, (120), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-04 02:34:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 228 transitions. [2025-03-04 02:34:49,361 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 228 transitions. Word has length 134 [2025-03-04 02:34:49,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:49,361 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 228 transitions. [2025-03-04 02:34:49,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-03-04 02:34:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 228 transitions. [2025-03-04 02:34:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-04 02:34:49,365 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:49,365 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:49,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 02:34:49,569 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 02:34:49,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:49,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash 34364310, now seen corresponding path program 1 times [2025-03-04 02:34:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928204610] [2025-03-04 02:34:49,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:49,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:53,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 02:34:53,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 02:34:53,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:53,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2025-03-04 02:34:55,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928204610] [2025-03-04 02:34:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928204610] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287966117] [2025-03-04 02:34:55,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:55,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:55,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:55,101 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 02:34:55,102 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 02:34:59,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 02:35:00,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 02:35:00,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:00,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:00,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 4277 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:35:00,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2025-03-04 02:35:01,005 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:01,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287966117] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:01,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:01,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:35:01,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062627202] [2025-03-04 02:35:01,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:01,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:35:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:01,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:35:01,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:35:01,008 INFO L87 Difference]: Start difference. First operand 175 states and 228 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:35:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:04,011 INFO L93 Difference]: Finished difference Result 323 states and 427 transitions. [2025-03-04 02:35:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:35:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 134 [2025-03-04 02:35:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:04,015 INFO L225 Difference]: With dead ends: 323 [2025-03-04 02:35:04,016 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 02:35:04,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:35:04,017 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 240 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:04,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 650 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-04 02:35:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 02:35:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-03-04 02:35:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (58), 53 states have call predecessors, (58), 53 states have call successors, (58) [2025-03-04 02:35:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 234 transitions. [2025-03-04 02:35:04,038 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 234 transitions. Word has length 134 [2025-03-04 02:35:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:04,039 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 234 transitions. [2025-03-04 02:35:04,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:35:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 234 transitions. [2025-03-04 02:35:04,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-04 02:35:04,044 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:04,044 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:35:04,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 02:35:04,245 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 [2025-03-04 02:35:04,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:04,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:04,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1368448006, now seen corresponding path program 1 times [2025-03-04 02:35:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223035198] [2025-03-04 02:35:04,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:08,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 02:35:08,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 02:35:08,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:08,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2025-03-04 02:35:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223035198] [2025-03-04 02:35:10,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223035198] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54559260] [2025-03-04 02:35:10,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:10,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:10,092 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) [2025-03-04 02:35:10,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 02:35:14,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-04 02:35:14,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-04 02:35:14,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:14,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:14,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 4531 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:35:14,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-04 02:35:16,382 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:16,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54559260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:16,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:16,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-04 02:35:16,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733136157] [2025-03-04 02:35:16,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:16,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 02:35:16,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:16,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 02:35:16,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 02:35:16,384 INFO L87 Difference]: Start difference. First operand 177 states and 234 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:19,674 INFO L93 Difference]: Finished difference Result 283 states and 374 transitions. [2025-03-04 02:35:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 02:35:19,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 164 [2025-03-04 02:35:19,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:19,679 INFO L225 Difference]: With dead ends: 283 [2025-03-04 02:35:19,679 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 02:35:19,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-04 02:35:19,680 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 241 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:19,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 809 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-04 02:35:19,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 02:35:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2025-03-04 02:35:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 104 states have (on average 1.1634615384615385) internal successors, (121), 106 states have internal predecessors, (121), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 53 states have call predecessors, (55), 53 states have call successors, (55) [2025-03-04 02:35:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 231 transitions. [2025-03-04 02:35:19,697 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 231 transitions. Word has length 164 [2025-03-04 02:35:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:19,697 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 231 transitions. [2025-03-04 02:35:19,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 7 states have internal predecessors, (67), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 231 transitions. [2025-03-04 02:35:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-04 02:35:19,700 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:19,700 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:35:19,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 02:35:19,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:19,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:19,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash -782141265, now seen corresponding path program 2 times [2025-03-04 02:35:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261458051] [2025-03-04 02:35:19,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 02:35:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:23,987 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 179 statements into 2 equivalence classes. [2025-03-04 02:35:24,405 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 179 of 179 statements. [2025-03-04 02:35:24,405 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 02:35:24,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2025-03-04 02:35:26,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:26,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261458051] [2025-03-04 02:35:26,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261458051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:26,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:35:26,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:35:26,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340517424] [2025-03-04 02:35:26,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:26,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:35:26,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:26,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:35:26,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:35:26,049 INFO L87 Difference]: Start difference. First operand 177 states and 231 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:27,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:27,724 INFO L93 Difference]: Finished difference Result 272 states and 351 transitions. [2025-03-04 02:35:27,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:35:27,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 179 [2025-03-04 02:35:27,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:27,728 INFO L225 Difference]: With dead ends: 272 [2025-03-04 02:35:27,728 INFO L226 Difference]: Without dead ends: 175 [2025-03-04 02:35:27,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-04 02:35:27,729 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 55 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:27,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1332 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-04 02:35:27,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-04 02:35:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-04 02:35:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 103 states have (on average 1.1553398058252426) internal successors, (119), 104 states have internal predecessors, (119), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-04 02:35:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2025-03-04 02:35:27,749 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 179 [2025-03-04 02:35:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:27,750 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2025-03-04 02:35:27,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2025-03-04 02:35:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-04 02:35:27,753 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:27,753 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:35:27,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:35:27,754 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:27,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1765118993, now seen corresponding path program 1 times [2025-03-04 02:35:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:27,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4040876] [2025-03-04 02:35:27,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:31,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-04 02:35:31,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-04 02:35:31,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:31,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2025-03-04 02:35:34,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:34,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4040876] [2025-03-04 02:35:34,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4040876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:34,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:35:34,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:35:34,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318418643] [2025-03-04 02:35:34,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:34,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:35:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:34,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:35:34,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:35:34,224 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:35,044 INFO L93 Difference]: Finished difference Result 315 states and 416 transitions. [2025-03-04 02:35:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 02:35:35,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 209 [2025-03-04 02:35:35,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:35,047 INFO L225 Difference]: With dead ends: 315 [2025-03-04 02:35:35,047 INFO L226 Difference]: Without dead ends: 214 [2025-03-04 02:35:35,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:35:35,048 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 14 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:35,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1587 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 02:35:35,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-03-04 02:35:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 197. [2025-03-04 02:35:35,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.1551724137931034) internal successors, (134), 117 states have internal predecessors, (134), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2025-03-04 02:35:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 259 transitions. [2025-03-04 02:35:35,071 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 259 transitions. Word has length 209 [2025-03-04 02:35:35,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:35,071 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 259 transitions. [2025-03-04 02:35:35,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-04 02:35:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 259 transitions. [2025-03-04 02:35:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-04 02:35:35,073 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:35,073 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:35:35,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 02:35:35,074 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:35,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:35,074 INFO L85 PathProgramCache]: Analyzing trace with hash -748348368, now seen corresponding path program 1 times [2025-03-04 02:35:35,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:35,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407037372] [2025-03-04 02:35:35,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:35:38,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-04 02:35:40,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-04 02:35:40,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:40,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2025-03-04 02:35:42,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:35:42,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407037372] [2025-03-04 02:35:42,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407037372] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:35:42,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921334509] [2025-03-04 02:35:42,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:42,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:42,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:35:42,327 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 02:35:42,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:35:46,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-04 02:35:47,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-04 02:35:47,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:35:47,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:35:47,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 4909 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 02:35:47,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:35:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 02:35:47,566 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:35:47,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921334509] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:35:47,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:35:47,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-03-04 02:35:47,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424846446] [2025-03-04 02:35:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:35:47,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:35:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:35:47,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:35:47,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:35:47,567 INFO L87 Difference]: Start difference. First operand 197 states and 259 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2025-03-04 02:35:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:35:48,575 INFO L93 Difference]: Finished difference Result 310 states and 407 transitions. [2025-03-04 02:35:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:35:48,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 209 [2025-03-04 02:35:48,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:35:48,578 INFO L225 Difference]: With dead ends: 310 [2025-03-04 02:35:48,578 INFO L226 Difference]: Without dead ends: 197 [2025-03-04 02:35:48,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:35:48,581 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:35:48,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 806 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 02:35:48,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2025-03-04 02:35:48,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2025-03-04 02:35:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 117 states have internal predecessors, (132), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (62), 62 states have call predecessors, (62), 61 states have call successors, (62) [2025-03-04 02:35:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 257 transitions. [2025-03-04 02:35:48,595 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 257 transitions. Word has length 209 [2025-03-04 02:35:48,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:35:48,596 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 257 transitions. [2025-03-04 02:35:48,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2025-03-04 02:35:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 257 transitions. [2025-03-04 02:35:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-04 02:35:48,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:35:48,598 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:35:48,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 02:35:48,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:35:48,800 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:35:48,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:35:48,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1263868817, now seen corresponding path program 1 times [2025-03-04 02:35:48,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:35:48,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613444784] [2025-03-04 02:35:48,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:35:48,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms