./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_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_hash_table_swap_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 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:56:09,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:56:09,760 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:56:09,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:56:09,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:56:09,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:56:09,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:56:09,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:56:09,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:56:09,793 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:56:09,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:56:09,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:56:09,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:56:09,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:56:09,794 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:56:09,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:56:09,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:56:09,795 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:56:09,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:56:09,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:56:09,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:56:09,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:56:09,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:56:09,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:56:09,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:56:09,797 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 -> 6882eeeeda078376f05bcbd4b1762ced588254a85bc5f57e76099cec8f6bde3a [2025-03-04 02:56:10,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:56:10,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:56:10,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:56:10,050 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:56:10,051 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:56:10,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-03-04 02:56:11,204 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae528fcf/bab1e3a40a1d4cdeb4616eca21fa6281/FLAG521440b24 [2025-03-04 02:56:11,684 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:56:11,686 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_table_swap_harness.i [2025-03-04 02:56:11,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae528fcf/bab1e3a40a1d4cdeb4616eca21fa6281/FLAG521440b24 [2025-03-04 02:56:11,763 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae528fcf/bab1e3a40a1d4cdeb4616eca21fa6281 [2025-03-04 02:56:11,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:56:11,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:56:11,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:56:11,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:56:11,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:56:11,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:56:11" (1/1) ... [2025-03-04 02:56:11,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9876686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:11, skipping insertion in model container [2025-03-04 02:56:11,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:56:11" (1/1) ... [2025-03-04 02:56:11,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:56:12,011 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_hash_table_swap_harness.i[4493,4506] [2025-03-04 02:56:12,017 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_hash_table_swap_harness.i[4553,4566] [2025-03-04 02:56:12,557 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,558 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,558 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,558 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,559 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,569 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,571 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,574 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,576 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:12,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,204 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,231 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,237 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,238 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,257 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,259 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,260 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,294 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_hash_table_swap_harness.i[228095,228108] [2025-03-04 02:56:13,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:56:13,321 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:56:13,333 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_hash_table_swap_harness.i[4493,4506] [2025-03-04 02:56:13,337 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_hash_table_swap_harness.i[4553,4566] [2025-03-04 02:56:13,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,369 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,370 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,376 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,377 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,378 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,379 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,380 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,381 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,381 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7558-7569] [2025-03-04 02:56:13,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,544 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,550 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,552 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,560 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,561 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,562 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,563 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:56:13,575 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_hash_table_swap_harness.i[228095,228108] [2025-03-04 02:56:13,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:56:13,718 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:56:13,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13 WrapperNode [2025-03-04 02:56:13,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:56:13,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:56:13,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:56:13,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:56:13,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,845 INFO L138 Inliner]: procedures = 763, calls = 2436, calls flagged for inlining = 67, calls inlined = 9, statements flattened = 598 [2025-03-04 02:56:13,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:56:13,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:56:13,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:56:13,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:56:13,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,910 INFO L175 MemorySlicer]: Split 284 memory accesses to 9 slices as follows [2, 238, 6, 3, 2, 17, 2, 9, 5]. 84 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 6, 0, 0, 1, 0, 0, 0, 5]. The 240 writes are split as follows [0, 232, 2, 1, 0, 1, 1, 3, 0]. [2025-03-04 02:56:13,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:56:13,957 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:56:13,957 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:56:13,958 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:56:13,958 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (1/1) ... [2025-03-04 02:56:13,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:56:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:13,989 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 02:56:13,994 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 02:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-04 02:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-04 02:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-04 02:56:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-04 02:56:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_hash_table [2025-03-04 02:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_hash_table [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2025-03-04 02:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2025-03-04 02:56:14,010 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2025-03-04 02:56:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-04 02:56:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2025-03-04 02:56:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:56:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_allocated_hash_table [2025-03-04 02:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_allocated_hash_table [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2025-03-04 02:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2025-03-04 02:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure check_hash_table_unchanged [2025-03-04 02:56:14,014 INFO L138 BoogieDeclarations]: Found implementation of procedure check_hash_table_unchanged [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:56:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-04 02:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-04 02:56:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2025-03-04 02:56:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2025-03-04 02:56:14,297 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:56:14,300 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:56:14,337 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: havoc #t~malloc588.base, #t~malloc588.offset; [2025-03-04 02:56:14,376 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2590: havoc #t~ret57#1; [2025-03-04 02:56:14,380 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2025-03-04 02:56:14,448 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2025-03-04 02:56:14,506 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L10103: call ULTIMATE.dealloc(~#elemsize~0.base, ~#elemsize~0.offset);havoc ~#elemsize~0.base, ~#elemsize~0.offset; [2025-03-04 02:56:14,531 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L9990: havoc #t~mem1489.base, #t~mem1489.offset;havoc #t~short1490;havoc #t~mem1491.base, #t~mem1491.offset;havoc #t~ret1492;havoc #t~short1493; [2025-03-04 02:56:14,580 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2630: havoc #t~bitwise60;havoc #t~short61; [2025-03-04 02:56:14,595 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2025-03-04 02:56:19,748 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2025-03-04 02:56:19,749 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:56:19,761 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:56:19,761 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:56:19,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:56:19 BoogieIcfgContainer [2025-03-04 02:56:19,761 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:56:19,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:56:19,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:56:19,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:56:19,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:56:11" (1/3) ... [2025-03-04 02:56:19,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70319caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:56:19, skipping insertion in model container [2025-03-04 02:56:19,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:56:13" (2/3) ... [2025-03-04 02:56:19,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70319caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:56:19, skipping insertion in model container [2025-03-04 02:56:19,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:56:19" (3/3) ... [2025-03-04 02:56:19,769 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_swap_harness.i [2025-03-04 02:56:19,781 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:56:19,783 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_swap_harness.i that has 17 procedures, 142 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:56:19,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:56:19,845 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;@271caa66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:56:19,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:56:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 02:56:19,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 02:56:19,858 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:19,858 INFO L218 NwaCegarLoop]: trace histogram [1, 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 02:56:19,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:19,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1081493422, now seen corresponding path program 1 times [2025-03-04 02:56:19,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:19,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851387311] [2025-03-04 02:56:19,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:19,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:24,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 02:56:24,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 02:56:24,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:24,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:56:25,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:25,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851387311] [2025-03-04 02:56:25,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851387311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:25,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:56:25,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 02:56:25,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194090037] [2025-03-04 02:56:25,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:25,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:56:25,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:25,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:56:25,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:56:25,031 INFO L87 Difference]: Start difference. First operand has 142 states, 89 states have (on average 1.202247191011236) internal successors, (107), 94 states have internal predecessors, (107), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:25,070 INFO L93 Difference]: Finished difference Result 280 states and 374 transitions. [2025-03-04 02:56:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:56:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-04 02:56:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:25,080 INFO L225 Difference]: With dead ends: 280 [2025-03-04 02:56:25,080 INFO L226 Difference]: Without dead ends: 137 [2025-03-04 02:56:25,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 02:56:25,088 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 02:56:25,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:56:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-04 02:56:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2025-03-04 02:56:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 89 states have internal predecessors, (99), 35 states have call successors, (35), 16 states have call predecessors, (35), 16 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2025-03-04 02:56:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 168 transitions. [2025-03-04 02:56:25,137 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 168 transitions. Word has length 25 [2025-03-04 02:56:25,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:25,138 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 168 transitions. [2025-03-04 02:56:25,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:25,138 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 168 transitions. [2025-03-04 02:56:25,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 02:56:25,140 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:25,140 INFO L218 NwaCegarLoop]: trace histogram [1, 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 02:56:25,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 02:56:25,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:25,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:25,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2078565775, now seen corresponding path program 1 times [2025-03-04 02:56:25,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:25,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139793780] [2025-03-04 02:56:25,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:25,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:28,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 02:56:28,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 02:56:28,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:28,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:56:29,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:29,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139793780] [2025-03-04 02:56:29,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139793780] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:29,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:56:29,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 02:56:29,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502339976] [2025-03-04 02:56:29,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:29,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 02:56:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:29,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 02:56:29,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:56:29,411 INFO L87 Difference]: Start difference. First operand 137 states and 168 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:29,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:29,516 INFO L93 Difference]: Finished difference Result 192 states and 238 transitions. [2025-03-04 02:56:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 02:56:29,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2025-03-04 02:56:29,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:29,520 INFO L225 Difference]: With dead ends: 192 [2025-03-04 02:56:29,521 INFO L226 Difference]: Without dead ends: 148 [2025-03-04 02:56:29,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:56:29,523 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 2 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 02:56:29,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 02:56:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-04 02:56:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2025-03-04 02:56:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 91 states have (on average 1.164835164835165) internal successors, (106), 95 states have internal predecessors, (106), 40 states have call successors, (40), 16 states have call predecessors, (40), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-04 02:56:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2025-03-04 02:56:29,542 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 25 [2025-03-04 02:56:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:29,544 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2025-03-04 02:56:29,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2025-03-04 02:56:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-04 02:56:29,545 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:29,545 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 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 02:56:29,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:56:29,545 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:29,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:29,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1629139524, now seen corresponding path program 1 times [2025-03-04 02:56:29,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:29,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802344305] [2025-03-04 02:56:29,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:29,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:33,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 02:56:33,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 02:56:33,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:33,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:56:33,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:33,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802344305] [2025-03-04 02:56:33,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802344305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:33,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:56:33,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 02:56:33,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119126251] [2025-03-04 02:56:33,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:33,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 02:56:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:33,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 02:56:33,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:56:33,523 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:33,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:33,594 INFO L93 Difference]: Finished difference Result 202 states and 250 transitions. [2025-03-04 02:56:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 02:56:33,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2025-03-04 02:56:33,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:33,596 INFO L225 Difference]: With dead ends: 202 [2025-03-04 02:56:33,596 INFO L226 Difference]: Without dead ends: 157 [2025-03-04 02:56:33,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:56:33,597 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 2 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 02:56:33,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 330 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 02:56:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-04 02:56:33,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2025-03-04 02:56:33,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 99 states have internal predecessors, (110), 44 states have call successors, (44), 16 states have call predecessors, (44), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2025-03-04 02:56:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 196 transitions. [2025-03-04 02:56:33,613 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 196 transitions. Word has length 26 [2025-03-04 02:56:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:33,613 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 196 transitions. [2025-03-04 02:56:33,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 02:56:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 196 transitions. [2025-03-04 02:56:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 02:56:33,619 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:33,619 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:56:33,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 02:56:33,620 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:33,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:33,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1327688218, now seen corresponding path program 1 times [2025-03-04 02:56:33,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:33,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727175765] [2025-03-04 02:56:33,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:33,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:37,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:56:37,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:56:37,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:37,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-04 02:56:38,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727175765] [2025-03-04 02:56:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727175765] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:56:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407486291] [2025-03-04 02:56:38,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:38,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:38,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:38,343 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 02:56:38,345 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 02:56:42,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-04 02:56:42,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 02:56:42,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:42,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:42,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 4485 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 02:56:42,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:56:43,086 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-03-04 02:56:43,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:56:43,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407486291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:43,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:56:43,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-03-04 02:56:43,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797701233] [2025-03-04 02:56:43,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:43,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:56:43,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:43,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:56:43,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:56:43,091 INFO L87 Difference]: Start difference. First operand 157 states and 196 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-04 02:56:43,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:56:43,303 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2025-03-04 02:56:43,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 02:56:43,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 129 [2025-03-04 02:56:43,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:56:43,306 INFO L225 Difference]: With dead ends: 313 [2025-03-04 02:56:43,309 INFO L226 Difference]: Without dead ends: 162 [2025-03-04 02:56:43,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:56:43,310 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:56:43,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 652 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:56:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2025-03-04 02:56:43,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2025-03-04 02:56:43,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 100 states have (on average 1.14) internal successors, (114), 103 states have internal predecessors, (114), 44 states have call successors, (44), 16 states have call predecessors, (44), 17 states have return successors, (43), 43 states have call predecessors, (43), 42 states have call successors, (43) [2025-03-04 02:56:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 201 transitions. [2025-03-04 02:56:43,325 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 201 transitions. Word has length 129 [2025-03-04 02:56:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:56:43,327 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 201 transitions. [2025-03-04 02:56:43,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-04 02:56:43,328 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 201 transitions. [2025-03-04 02:56:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-04 02:56:43,335 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:56:43,335 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:56:43,353 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 02:56:43,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:43,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:56:43,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:56:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 246150362, now seen corresponding path program 1 times [2025-03-04 02:56:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:56:43,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421110183] [2025-03-04 02:56:43,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:43,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:56:46,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 02:56:47,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 02:56:47,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:47,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-04 02:56:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:56:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421110183] [2025-03-04 02:56:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421110183] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:56:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251496010] [2025-03-04 02:56:51,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:56:51,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:56:51,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:56:51,119 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 02:56:51,121 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 02:56:55,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 02:56:55,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 02:56:55,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:56:55,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:56:55,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 4491 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 02:56:55,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:56:56,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 02:56:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 02:56:58,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:56:58,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251496010] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:56:58,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:56:58,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-03-04 02:56:58,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737333825] [2025-03-04 02:56:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:56:58,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:56:58,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:56:58,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:56:58,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:56:58,174 INFO L87 Difference]: Start difference. First operand 162 states and 201 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:57:04,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:57:04,634 INFO L93 Difference]: Finished difference Result 390 states and 481 transitions. [2025-03-04 02:57:04,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 02:57:04,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2025-03-04 02:57:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:57:04,638 INFO L225 Difference]: With dead ends: 390 [2025-03-04 02:57:04,638 INFO L226 Difference]: Without dead ends: 244 [2025-03-04 02:57:04,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-03-04 02:57:04,639 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 161 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2025-03-04 02:57:04,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1399 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2025-03-04 02:57:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-04 02:57:04,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-03-04 02:57:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (63), 57 states have call predecessors, (63), 56 states have call successors, (63) [2025-03-04 02:57:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 294 transitions. [2025-03-04 02:57:04,666 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 294 transitions. Word has length 140 [2025-03-04 02:57:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:57:04,667 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 294 transitions. [2025-03-04 02:57:04,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 9 states have internal predecessors, (80), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:57:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 294 transitions. [2025-03-04 02:57:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 02:57:04,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:57:04,670 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:57:04,687 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 02:57:04,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:04,870 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:57:04,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:57:04,871 INFO L85 PathProgramCache]: Analyzing trace with hash -92949376, now seen corresponding path program 1 times [2025-03-04 02:57:04,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:57:04,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731427830] [2025-03-04 02:57:04,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:04,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:57:08,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:57:08,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:57:08,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:08,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:11,715 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-04 02:57:11,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:57:11,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731427830] [2025-03-04 02:57:11,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731427830] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:57:11,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964318949] [2025-03-04 02:57:11,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:11,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:11,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:57:11,717 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 02:57:11,718 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 02:57:16,111 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-03-04 02:57:16,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 02:57:16,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:16,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:16,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 4493 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-04 02:57:16,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:57:17,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 02:57:18,476 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 02:57:18,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:57:18,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964318949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:57:18,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:57:18,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11] total 16 [2025-03-04 02:57:18,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110902437] [2025-03-04 02:57:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:57:18,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:57:18,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:57:18,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:57:18,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:57:18,517 INFO L87 Difference]: Start difference. First operand 240 states and 294 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:57:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:57:24,571 INFO L93 Difference]: Finished difference Result 365 states and 447 transitions. [2025-03-04 02:57:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 02:57:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) Word has length 141 [2025-03-04 02:57:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:57:24,574 INFO L225 Difference]: With dead ends: 365 [2025-03-04 02:57:24,574 INFO L226 Difference]: Without dead ends: 244 [2025-03-04 02:57:24,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2025-03-04 02:57:24,575 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 151 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-03-04 02:57:24,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1756 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-03-04 02:57:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-04 02:57:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 240. [2025-03-04 02:57:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 152 states have (on average 1.138157894736842) internal successors, (173), 156 states have internal predecessors, (173), 58 states have call successors, (58), 27 states have call predecessors, (58), 29 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2025-03-04 02:57:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 292 transitions. [2025-03-04 02:57:24,596 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 292 transitions. Word has length 141 [2025-03-04 02:57:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:57:24,597 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 292 transitions. [2025-03-04 02:57:24,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 5 states have call predecessors, (22), 4 states have call successors, (22) [2025-03-04 02:57:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 292 transitions. [2025-03-04 02:57:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-04 02:57:24,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:57:24,598 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:57:24,618 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 02:57:24,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:24,799 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:57:24,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:57:24,799 INFO L85 PathProgramCache]: Analyzing trace with hash -162725, now seen corresponding path program 1 times [2025-03-04 02:57:24,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:57:24,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414769034] [2025-03-04 02:57:24,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:57:28,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 02:57:28,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 02:57:28,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:28,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-04 02:57:29,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:57:29,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414769034] [2025-03-04 02:57:29,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414769034] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:57:29,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781419537] [2025-03-04 02:57:29,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:29,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:29,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:57:29,433 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 02:57:29,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 02:57:34,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-04 02:57:34,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-04 02:57:34,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:57:34,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:57:34,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 4486 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 02:57:34,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:57:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 02:57:34,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:57:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781419537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:57:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:57:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-04 02:57:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555298128] [2025-03-04 02:57:34,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:57:34,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:57:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:57:34,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:57:34,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 02:57:34,957 INFO L87 Difference]: Start difference. First operand 240 states and 292 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:57:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:57:35,980 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2025-03-04 02:57:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:57:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2025-03-04 02:57:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:57:35,983 INFO L225 Difference]: With dead ends: 396 [2025-03-04 02:57:35,983 INFO L226 Difference]: Without dead ends: 245 [2025-03-04 02:57:35,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:57:35,983 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 169 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 02:57:35,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 564 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 02:57:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-03-04 02:57:35,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-03-04 02:57:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 155 states have (on average 1.135483870967742) internal successors, (176), 160 states have internal predecessors, (176), 59 states have call successors, (59), 27 states have call predecessors, (59), 30 states have return successors, (66), 58 states have call predecessors, (66), 57 states have call successors, (66) [2025-03-04 02:57:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 301 transitions. [2025-03-04 02:57:36,000 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 301 transitions. Word has length 140 [2025-03-04 02:57:36,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:57:36,001 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 301 transitions. [2025-03-04 02:57:36,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-03-04 02:57:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 301 transitions. [2025-03-04 02:57:36,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-04 02:57:36,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:57:36,004 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:57:36,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 02:57:36,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:57:36,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:57:36,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:57:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1778405291, now seen corresponding path program 1 times [2025-03-04 02:57:36,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:57:36,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533293294] [2025-03-04 02:57:36,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:57:36,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:57:39,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes.