./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_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_push_back_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 ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:36:01,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:36:01,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:36:01,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:36:01,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:36:01,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:36:01,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:36:01,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:36:01,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:36:01,452 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:36:01,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:36:01,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:36:01,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:36:01,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:36:01,453 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:36:01,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:36:01,454 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:36:01,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:01,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:36:01,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:36:01,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:36:01,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:36:01,456 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:36:01,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:36:01,456 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 -> ff502e881eb1ce65711f1131688c06c00f482d17207657a0aaf21c7da411f1b1 [2025-03-04 02:36:01,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:36:01,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:36:01,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:36:01,728 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:36:01,728 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:36:01,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-03-04 02:36:02,869 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f660c0b/39bb934b5214422fa90a4f9419c6a418/FLAGd9fdfb99f [2025-03-04 02:36:03,340 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:36:03,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2025-03-04 02:36:03,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f660c0b/39bb934b5214422fa90a4f9419c6a418/FLAGd9fdfb99f [2025-03-04 02:36:03,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f660c0b/39bb934b5214422fa90a4f9419c6a418 [2025-03-04 02:36:03,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:36:03,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:36:03,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:03,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:36:03,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:36:03,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:03" (1/1) ... [2025-03-04 02:36:03,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b20f927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:03, skipping insertion in model container [2025-03-04 02:36:03,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:36:03" (1/1) ... [2025-03-04 02:36:03,537 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:36:03,725 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_push_back_harness.i[4498,4511] [2025-03-04 02:36:03,732 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_push_back_harness.i[4558,4571] [2025-03-04 02:36:04,187 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,188 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,189 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,196 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,197 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,201 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,202 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,205 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,506 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,510 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:04,583 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:36:04,595 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_push_back_harness.i[4498,4511] [2025-03-04 02:36:04,600 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_push_back_harness.i[4558,4571] [2025-03-04 02:36:04,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,650 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,654 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,655 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,656 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,657 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,767 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,775 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:36:04,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7770-7781] [2025-03-04 02:36:04,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:36:05,000 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:36:05,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05 WrapperNode [2025-03-04 02:36:05,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:36:05,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:05,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:36:05,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:36:05,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,121 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 13, statements flattened = 898 [2025-03-04 02:36:05,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:36:05,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:36:05,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:36:05,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:36:05,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,202 INFO L175 MemorySlicer]: Split 334 memory accesses to 6 slices as follows [238, 2, 74, 8, 6, 6]. 71 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 5, 0, 1]. The 241 writes are split as follows [232, 0, 6, 0, 2, 1]. [2025-03-04 02:36:05,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:36:05,274 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:36:05,274 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:36:05,274 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:36:05,278 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (1/1) ... [2025-03-04 02:36:05,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:36:05,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:05,337 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 02:36:05,339 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 02:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:36:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:36:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:36:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 02:36:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 02:36:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:36:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:36:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:36:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:36:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:36:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:36:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:36:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:36:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:36:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:36:05,657 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:36:05,659 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:36:05,698 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:36:05,742 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 02:36:05,762 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:36:05,787 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 02:36:05,903 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 02:36:05,909 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:36:05,932 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2821: havoc #t~ret89.base, #t~ret89.offset; [2025-03-04 02:36:05,962 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7391: havoc #t~ret681.base, #t~ret681.offset; [2025-03-04 02:36:06,000 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2615: havoc #t~ret59#1; [2025-03-04 02:36:11,242 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7535: havoc aws_array_list_ensure_capacity_#t~ret764#1; [2025-03-04 02:36:11,243 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7412: call ULTIMATE.dealloc(aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset);havoc aws_array_list_calc_necessary_size_~#index_inc~0#1.base, aws_array_list_calc_necessary_size_~#index_inc~0#1.offset; [2025-03-04 02:36:11,243 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7513: call ULTIMATE.dealloc(aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset);havoc aws_array_list_ensure_capacity_~#necessary_size~0#1.base, aws_array_list_ensure_capacity_~#necessary_size~0#1.offset; [2025-03-04 02:36:11,243 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7522: havoc aws_array_list_ensure_capacity_#t~ret757#1; [2025-03-04 02:36:11,243 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3321: havoc aws_array_list_push_back_#t~ret166#1; [2025-03-04 02:36:11,367 INFO L? ?]: Removed 190 outVars from TransFormulas that were not future-live. [2025-03-04 02:36:11,368 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:36:11,391 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:36:11,392 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:36:11,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:36:11 BoogieIcfgContainer [2025-03-04 02:36:11,394 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:36:11,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:36:11,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:36:11,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:36:11,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:36:03" (1/3) ... [2025-03-04 02:36:11,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1448a60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:36:11, skipping insertion in model container [2025-03-04 02:36:11,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:36:05" (2/3) ... [2025-03-04 02:36:11,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1448a60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:36:11, skipping insertion in model container [2025-03-04 02:36:11,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:36:11" (3/3) ... [2025-03-04 02:36:11,405 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2025-03-04 02:36:11,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:36:11,421 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_push_back_harness.i that has 23 procedures, 306 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:36:11,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:36:11,493 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;@1bda87f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:36:11,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:36:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2025-03-04 02:36:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-04 02:36:11,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:11,520 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:11,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:11,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:11,526 INFO L85 PathProgramCache]: Analyzing trace with hash 554003197, now seen corresponding path program 1 times [2025-03-04 02:36:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:11,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489909205] [2025-03-04 02:36:11,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:36:16,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-04 02:36:16,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-04 02:36:16,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:16,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-03-04 02:36:17,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:36:17,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489909205] [2025-03-04 02:36:17,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489909205] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:36:17,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557303438] [2025-03-04 02:36:17,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:17,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:36:17,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:17,083 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 02:36:17,089 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 02:36:21,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-04 02:36:21,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-04 02:36:21,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:21,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:21,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:36:21,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:36:22,013 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2025-03-04 02:36:22,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:36:22,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557303438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:36:22,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:36:22,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:36:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776081802] [2025-03-04 02:36:22,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:36:22,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:36:22,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:36:22,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:36:22,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:36:22,041 INFO L87 Difference]: Start difference. First operand has 306 states, 179 states have (on average 1.217877094972067) internal successors, (218), 180 states have internal predecessors, (218), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) 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 02:36:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:36:22,102 INFO L93 Difference]: Finished difference Result 605 states and 900 transitions. [2025-03-04 02:36:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:36:22,105 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 135 [2025-03-04 02:36:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:36:22,114 INFO L225 Difference]: With dead ends: 605 [2025-03-04 02:36:22,114 INFO L226 Difference]: Without dead ends: 301 [2025-03-04 02:36:22,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 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 02:36:22,125 INFO L435 NwaCegarLoop]: 422 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, 422 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 02:36:22,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:36:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-04 02:36:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2025-03-04 02:36:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 175 states have (on average 1.2114285714285715) internal successors, (212), 176 states have internal predecessors, (212), 103 states have call successors, (103), 22 states have call predecessors, (103), 22 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-04 02:36:22,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 417 transitions. [2025-03-04 02:36:22,194 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 417 transitions. Word has length 135 [2025-03-04 02:36:22,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:36:22,196 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 417 transitions. [2025-03-04 02:36:22,196 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 02:36:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 417 transitions. [2025-03-04 02:36:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-04 02:36:22,200 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:22,202 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:22,220 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 02:36:22,402 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 02:36:22,403 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:22,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1547041216, now seen corresponding path program 1 times [2025-03-04 02:36:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:22,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065754423] [2025-03-04 02:36:22,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:22,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:36:26,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-04 02:36:26,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-04 02:36:26,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:26,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2025-03-04 02:36:27,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:36:27,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065754423] [2025-03-04 02:36:27,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065754423] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:36:27,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425282951] [2025-03-04 02:36:27,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:27,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:36:27,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:27,401 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 02:36:27,402 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 02:36:31,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-04 02:36:32,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-04 02:36:32,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:32,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:32,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 02:36:32,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:36:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2025-03-04 02:36:33,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:36:33,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425282951] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:36:33,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:36:33,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:36:33,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182182299] [2025-03-04 02:36:33,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:36:33,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:36:33,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:36:33,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:36:33,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:36:33,121 INFO L87 Difference]: Start difference. First operand 301 states and 417 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 02:36:37,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:36:37,375 INFO L93 Difference]: Finished difference Result 578 states and 821 transitions. [2025-03-04 02:36:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:36:37,375 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 135 [2025-03-04 02:36:37,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:36:37,380 INFO L225 Difference]: With dead ends: 578 [2025-03-04 02:36:37,380 INFO L226 Difference]: Without dead ends: 303 [2025-03-04 02:36:37,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:36:37,382 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 457 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2025-03-04 02:36:37,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1154 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2025-03-04 02:36:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-04 02:36:37,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-03-04 02:36:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (121), 102 states have call predecessors, (121), 102 states have call successors, (121) [2025-03-04 02:36:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 437 transitions. [2025-03-04 02:36:37,414 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 437 transitions. Word has length 135 [2025-03-04 02:36:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:36:37,415 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 437 transitions. [2025-03-04 02:36:37,416 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 02:36:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 437 transitions. [2025-03-04 02:36:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-04 02:36:37,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:37,418 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 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, 1, 1] [2025-03-04 02:36:37,432 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 02:36:37,618 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 02:36:37,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:37,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash 878067400, now seen corresponding path program 1 times [2025-03-04 02:36:37,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:37,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948234789] [2025-03-04 02:36:37,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:37,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:36:41,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-04 02:36:41,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-04 02:36:41,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:41,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2025-03-04 02:36:42,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:36:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948234789] [2025-03-04 02:36:42,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948234789] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:36:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662862528] [2025-03-04 02:36:42,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:36:42,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:36:42,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:36:42,694 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 02:36:42,696 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 02:36:46,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-04 02:36:47,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-04 02:36:47,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:36:47,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:47,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 4534 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:36:47,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:36:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2025-03-04 02:36:48,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:36:48,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662862528] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:36:48,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:36:48,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2025-03-04 02:36:48,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113944502] [2025-03-04 02:36:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:36:48,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 02:36:48,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:36:48,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 02:36:48,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 02:36:48,551 INFO L87 Difference]: Start difference. First operand 303 states and 437 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 02:36:53,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:36:53,616 INFO L93 Difference]: Finished difference Result 554 states and 799 transitions. [2025-03-04 02:36:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 02:36:53,617 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 165 [2025-03-04 02:36:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:36:53,621 INFO L225 Difference]: With dead ends: 554 [2025-03-04 02:36:53,621 INFO L226 Difference]: Without dead ends: 303 [2025-03-04 02:36:53,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-04 02:36:53,623 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 522 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-03-04 02:36:53,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1397 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-03-04 02:36:53,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-04 02:36:53,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2025-03-04 02:36:53,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 176 states have (on average 1.2102272727272727) internal successors, (213), 178 states have internal predecessors, (213), 103 states have call successors, (103), 22 states have call predecessors, (103), 23 states have return successors, (118), 102 states have call predecessors, (118), 102 states have call successors, (118) [2025-03-04 02:36:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 434 transitions. [2025-03-04 02:36:53,647 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 434 transitions. Word has length 165 [2025-03-04 02:36:53,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:36:53,648 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 434 transitions. [2025-03-04 02:36:53,649 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 02:36:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 434 transitions. [2025-03-04 02:36:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-04 02:36:53,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:36:53,652 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:36:53,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 02:36:53,852 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 02:36:53,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:36:53,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:36:53,853 INFO L85 PathProgramCache]: Analyzing trace with hash 914880142, now seen corresponding path program 2 times [2025-03-04 02:36:53,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:36:53,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689954820] [2025-03-04 02:36:53,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 02:36:53,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:36:57,489 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 180 statements into 2 equivalence classes. [2025-03-04 02:36:57,867 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 180 of 180 statements. [2025-03-04 02:36:57,867 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 02:36:57,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:36:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2025-03-04 02:36:59,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:36:59,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689954820] [2025-03-04 02:36:59,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689954820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:36:59,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:36:59,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:36:59,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315357959] [2025-03-04 02:36:59,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:36:59,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:36:59,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:36:59,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:36:59,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:36:59,517 INFO L87 Difference]: Start difference. First operand 303 states and 434 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 02:37:02,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:02,540 INFO L93 Difference]: Finished difference Result 560 states and 804 transitions. [2025-03-04 02:37:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:37:02,541 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 180 [2025-03-04 02:37:02,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:02,543 INFO L225 Difference]: With dead ends: 560 [2025-03-04 02:37:02,544 INFO L226 Difference]: Without dead ends: 315 [2025-03-04 02:37:02,545 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 02:37:02,545 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 185 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-04 02:37:02,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 2360 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-04 02:37:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2025-03-04 02:37:02,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2025-03-04 02:37:02,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 182 states have (on average 1.2087912087912087) internal successors, (220), 184 states have internal predecessors, (220), 108 states have call successors, (108), 23 states have call predecessors, (108), 24 states have return successors, (123), 107 states have call predecessors, (123), 107 states have call successors, (123) [2025-03-04 02:37:02,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 451 transitions. [2025-03-04 02:37:02,565 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 451 transitions. Word has length 180 [2025-03-04 02:37:02,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:02,565 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 451 transitions. [2025-03-04 02:37:02,565 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 02:37:02,566 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 451 transitions. [2025-03-04 02:37:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-04 02:37:02,568 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:02,568 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:02,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:37:02,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:02,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:02,570 INFO L85 PathProgramCache]: Analyzing trace with hash -813591064, now seen corresponding path program 1 times [2025-03-04 02:37:02,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:02,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884713473] [2025-03-04 02:37:02,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:02,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:06,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-04 02:37:06,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-04 02:37:06,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:06,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-03-04 02:37:08,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:08,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884713473] [2025-03-04 02:37:08,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884713473] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:37:08,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:37:08,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 02:37:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570546690] [2025-03-04 02:37:08,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:37:08,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 02:37:08,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:37:08,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 02:37:08,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 02:37:08,277 INFO L87 Difference]: Start difference. First operand 315 states and 451 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-04 02:37:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:08,777 INFO L93 Difference]: Finished difference Result 599 states and 860 transitions. [2025-03-04 02:37:08,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:37:08,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 210 [2025-03-04 02:37:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:08,780 INFO L225 Difference]: With dead ends: 599 [2025-03-04 02:37:08,780 INFO L226 Difference]: Without dead ends: 333 [2025-03-04 02:37:08,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:37:08,782 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 6 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:37:08,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2466 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 02:37:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-03-04 02:37:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 329. [2025-03-04 02:37:08,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 193 states have internal predecessors, (230), 112 states have call successors, (112), 23 states have call predecessors, (112), 25 states have return successors, (129), 112 states have call predecessors, (129), 111 states have call successors, (129) [2025-03-04 02:37:08,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 471 transitions. [2025-03-04 02:37:08,805 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 471 transitions. Word has length 210 [2025-03-04 02:37:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:08,806 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 471 transitions. [2025-03-04 02:37:08,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2025-03-04 02:37:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 471 transitions. [2025-03-04 02:37:08,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-04 02:37:08,808 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:08,809 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:08,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 02:37:08,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:08,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:08,810 INFO L85 PathProgramCache]: Analyzing trace with hash -298070615, now seen corresponding path program 1 times [2025-03-04 02:37:08,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:08,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176204023] [2025-03-04 02:37:08,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:08,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:12,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-04 02:37:12,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-04 02:37:12,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:12,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2025-03-04 02:37:14,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:14,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176204023] [2025-03-04 02:37:14,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176204023] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:37:14,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:37:14,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:37:14,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405757722] [2025-03-04 02:37:14,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:37:14,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:37:14,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:37:14,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:37:14,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:37:14,928 INFO L87 Difference]: Start difference. First operand 329 states and 471 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 02:37:15,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:37:15,777 INFO L93 Difference]: Finished difference Result 604 states and 865 transitions. [2025-03-04 02:37:15,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 02:37:15,778 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 210 [2025-03-04 02:37:15,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:37:15,781 INFO L225 Difference]: With dead ends: 604 [2025-03-04 02:37:15,781 INFO L226 Difference]: Without dead ends: 341 [2025-03-04 02:37:15,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:37:15,785 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 7 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2873 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 02:37:15,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2873 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 02:37:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2025-03-04 02:37:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 335. [2025-03-04 02:37:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 196 states have internal predecessors, (233), 115 states have call successors, (115), 23 states have call predecessors, (115), 25 states have return successors, (132), 115 states have call predecessors, (132), 114 states have call successors, (132) [2025-03-04 02:37:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 480 transitions. [2025-03-04 02:37:15,805 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 480 transitions. Word has length 210 [2025-03-04 02:37:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:37:15,805 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 480 transitions. [2025-03-04 02:37:15,806 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 02:37:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 480 transitions. [2025-03-04 02:37:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-04 02:37:15,808 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:37:15,808 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:37:15,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 02:37:15,808 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:37:15,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:37:15,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1483429320, now seen corresponding path program 1 times [2025-03-04 02:37:15,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:37:15,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365913703] [2025-03-04 02:37:15,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:15,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:37:19,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-04 02:37:20,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-04 02:37:20,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:37:20,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:37:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2025-03-04 02:37:25,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:37:25,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365913703] [2025-03-04 02:37:25,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365913703] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:37:25,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327393031] [2025-03-04 02:37:25,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:37:25,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:37:25,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:37:25,729 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 02:37:25,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process