./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:30:12,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:30:13,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-02-08 01:30:13,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:30:13,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:30:13,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:30:13,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:30:13,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:30:13,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:30:13,053 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:30:13,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:30:13,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:30:13,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:30:13,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:30:13,054 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:30:13,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:30:13,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:30:13,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:30:13,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:30:13,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:30:13,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:30:13,057 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:30:13,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:30:13,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:30:13,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:30:13,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:30:13,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:30:13,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:30:13,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:30:13,058 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-jdk21/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 -> dffc4cc659c78c5e4d3c572c2e076191f4762fb06451fbe9d95775fc3e18059d [2025-02-08 01:30:13,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:30:13,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:30:13,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:30:13,357 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:30:13,357 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:30:13,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2025-02-08 01:30:14,732 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/025185db9/847735cdbfeb4afa907f739c3349aa9e/FLAGaf1bfe40e [2025-02-08 01:30:15,210 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:30:15,210 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i [2025-02-08 01:30:15,247 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/025185db9/847735cdbfeb4afa907f739c3349aa9e/FLAGaf1bfe40e [2025-02-08 01:30:15,287 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/025185db9/847735cdbfeb4afa907f739c3349aa9e [2025-02-08 01:30:15,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:30:15,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:30:15,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:30:15,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:30:15,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:30:15,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:30:15" (1/1) ... [2025-02-08 01:30:15,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762a5b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:15, skipping insertion in model container [2025-02-08 01:30:15,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:30:15" (1/1) ... [2025-02-08 01:30:15,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:30:15,683 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2025-02-08 01:30:15,693 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2025-02-08 01:30:16,564 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,565 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,565 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,566 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,567 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,577 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,578 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,580 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,583 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,584 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:16,584 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,089 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,096 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:30:17,207 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:30:17,220 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4502,4515] [2025-02-08 01:30:17,221 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_contents_harness.i[4562,4575] [2025-02-08 01:30:17,288 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,292 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,292 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,293 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,301 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,302 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,306 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,307 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,309 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,310 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,311 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,421 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,425 WARN L1731 CHandler]: Possible shadowing of function index [2025-02-08 01:30:17,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2025-02-08 01:30:17,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:30:17,677 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:30:17,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17 WrapperNode [2025-02-08 01:30:17,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:30:17,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:30:17,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:30:17,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:30:17,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,799 INFO L138 Inliner]: procedures = 679, calls = 1720, calls flagged for inlining = 51, calls inlined = 7, statements flattened = 701 [2025-02-08 01:30:17,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:30:17,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:30:17,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:30:17,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:30:17,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,900 INFO L175 MemorySlicer]: Split 358 memory accesses to 7 slices as follows [238, 2, 10, 7, 3, 6, 92]. 66 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [6, 2, 5, 5, 1, 0, 20]. The 248 writes are split as follows [232, 0, 0, 0, 1, 2, 13]. [2025-02-08 01:30:17,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:30:17,976 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:30:17,977 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:30:17,977 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:30:17,979 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (1/1) ... [2025-02-08 01:30:17,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:30:17,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:18,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:30:18,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:30:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:30:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-02-08 01:30:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-02-08 01:30:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-02-08 01:30:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-02-08 01:30:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-02-08 01:30:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-02-08 01:30:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-02-08 01:30:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 01:30:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2025-02-08 01:30:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:30:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:30:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-02-08 01:30:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-02-08 01:30:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-02-08 01:30:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-02-08 01:30:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-02-08 01:30:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 01:30:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 01:30:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:30:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:30:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:30:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-02-08 01:30:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-02-08 01:30:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-08 01:30:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure assert_array_list_equivalence [2025-02-08 01:30:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_array_list_equivalence [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:30:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:30:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:30:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:30:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-08 01:30:18,371 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:30:18,373 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:30:18,429 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-02-08 01:30:18,478 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7185-1: SUMMARY for call assume_abort_if_not((if 0 == (if #t~mem629#1 % 18446744073709551616 < ~size#1 % 18446744073709551616 then 1 else 0) then 0 else 1)); srcloc: null [2025-02-08 01:30:18,479 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L7185: havoc #t~mem629#1;call #t~mem630#1 := read~int#5(~storage#1.base, ~storage#1.offset, 8);call #t~mem631#1 := read~int#3(~array#1.base, ~array#1.offset + (if #t~mem630#1 % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then #t~mem630#1 % 18446744073709551616 % 18446744073709551616 else #t~mem630#1 % 18446744073709551616 % 18446744073709551616 - 18446744073709551616), 1);call write~int#5(#t~mem631#1, ~storage#1.base, 8 + ~storage#1.offset, 1);havoc #t~mem630#1;havoc #t~mem631#1; [2025-02-08 01:30:18,479 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1;#t~ret628#1 := nondet_size_t_#res#1;havoc nondet_size_t_#t~nondet6#1;assume { :end_inline_nondet_size_t } true;call write~int#5(#t~ret628#1, ~storage#1.base, ~storage#1.offset, 8);havoc #t~ret628#1;call #t~mem629#1 := read~int#5(~storage#1.base, ~storage#1.offset, 8); [2025-02-08 01:30:18,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-02-08 01:30:18,660 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-02-08 01:30:18,664 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-02-08 01:30:25,035 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-02-08 01:30:25,036 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:30:25,046 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:30:25,046 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:30:25,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:30:25 BoogieIcfgContainer [2025-02-08 01:30:25,047 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:30:25,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:30:25,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:30:25,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:30:25,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:30:15" (1/3) ... [2025-02-08 01:30:25,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6063c669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:30:25, skipping insertion in model container [2025-02-08 01:30:25,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:30:17" (2/3) ... [2025-02-08 01:30:25,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6063c669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:30:25, skipping insertion in model container [2025-02-08 01:30:25,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:30:25" (3/3) ... [2025-02-08 01:30:25,055 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_contents_harness.i [2025-02-08 01:30:25,067 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:30:25,068 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_contents_harness.i that has 15 procedures, 153 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:30:25,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:30:25,139 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;@ad68784, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:30:25,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 01:30:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 84 states have (on average 1.1785714285714286) internal successors, (99), 87 states have internal predecessors, (99), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-02-08 01:30:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-02-08 01:30:25,158 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:25,159 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 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] [2025-02-08 01:30:25,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:25,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:25,165 INFO L85 PathProgramCache]: Analyzing trace with hash 106680157, now seen corresponding path program 1 times [2025-02-08 01:30:25,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:25,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958345789] [2025-02-08 01:30:25,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:25,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:30,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-08 01:30:30,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-08 01:30:30,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:30,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2025-02-08 01:30:31,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:31,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958345789] [2025-02-08 01:30:31,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958345789] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:31,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46149395] [2025-02-08 01:30:31,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:31,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:31,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:31,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 01:30:36,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-08 01:30:36,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-08 01:30:36,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:36,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:36,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 4633 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 01:30:36,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2025-02-08 01:30:36,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:36,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46149395] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:36,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:36,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-08 01:30:36,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690260285] [2025-02-08 01:30:36,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:36,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 01:30:36,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:36,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 01:30:36,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:30:36,861 INFO L87 Difference]: Start difference. First operand has 153 states, 84 states have (on average 1.1785714285714286) internal successors, (99), 87 states have internal predecessors, (99), 51 states have call successors, (51), 14 states have call predecessors, (51), 14 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-08 01:30:36,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:36,898 INFO L93 Difference]: Finished difference Result 303 states and 430 transitions. [2025-02-08 01:30:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 01:30:36,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 173 [2025-02-08 01:30:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:36,908 INFO L225 Difference]: With dead ends: 303 [2025-02-08 01:30:36,908 INFO L226 Difference]: Without dead ends: 143 [2025-02-08 01:30:36,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 01:30:36,917 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:36,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 01:30:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-02-08 01:30:36,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2025-02-08 01:30:36,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.139240506329114) internal successors, (90), 80 states have internal predecessors, (90), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2025-02-08 01:30:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 189 transitions. [2025-02-08 01:30:36,974 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 189 transitions. Word has length 173 [2025-02-08 01:30:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:36,977 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 189 transitions. [2025-02-08 01:30:36,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-08 01:30:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 189 transitions. [2025-02-08 01:30:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-02-08 01:30:36,983 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:36,983 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 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] [2025-02-08 01:30:37,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 01:30:37,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-08 01:30:37,185 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:37,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:37,185 INFO L85 PathProgramCache]: Analyzing trace with hash 623320142, now seen corresponding path program 1 times [2025-02-08 01:30:37,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:37,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18360175] [2025-02-08 01:30:37,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:37,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:41,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-08 01:30:41,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-08 01:30:41,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:41,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2025-02-08 01:30:43,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:43,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18360175] [2025-02-08 01:30:43,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18360175] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:43,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895440751] [2025-02-08 01:30:43,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:43,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:43,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:43,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:43,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 01:30:47,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-02-08 01:30:48,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-02-08 01:30:48,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:48,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:48,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 4633 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:30:48,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:30:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2025-02-08 01:30:48,839 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:30:48,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895440751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:30:48,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:30:48,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:30:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025763359] [2025-02-08 01:30:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:30:48,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:30:48,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:30:48,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:30:48,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:30:48,843 INFO L87 Difference]: Start difference. First operand 143 states and 189 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:30:49,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:30:49,597 INFO L93 Difference]: Finished difference Result 282 states and 377 transitions. [2025-02-08 01:30:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:30:49,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 173 [2025-02-08 01:30:49,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:30:49,601 INFO L225 Difference]: With dead ends: 282 [2025-02-08 01:30:49,601 INFO L226 Difference]: Without dead ends: 145 [2025-02-08 01:30:49,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:30:49,603 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 29 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 01:30:49,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 615 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 01:30:49,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-02-08 01:30:49,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-02-08 01:30:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2025-02-08 01:30:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 196 transitions. [2025-02-08 01:30:49,631 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 196 transitions. Word has length 173 [2025-02-08 01:30:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:30:49,632 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 196 transitions. [2025-02-08 01:30:49,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:30:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 196 transitions. [2025-02-08 01:30:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-02-08 01:30:49,634 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:30:49,637 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:30:49,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 01:30:49,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:49,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:30:49,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:30:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash -688479172, now seen corresponding path program 1 times [2025-02-08 01:30:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:30:49,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043083023] [2025-02-08 01:30:49,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:49,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:30:53,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-08 01:30:54,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-08 01:30:54,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:30:54,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:30:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2025-02-08 01:30:55,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:30:55,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043083023] [2025-02-08 01:30:55,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043083023] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:30:55,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327099820] [2025-02-08 01:30:55,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:30:55,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:30:55,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:30:55,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:30:55,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 01:30:59,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-08 01:31:00,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-08 01:31:00,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:31:00,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:00,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 4760 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 01:31:00,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 01:31:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2025-02-08 01:31:00,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 01:31:00,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327099820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:31:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 01:31:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-08 01:31:00,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965750801] [2025-02-08 01:31:00,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:31:00,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:31:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:31:00,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:31:00,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:31:00,873 INFO L87 Difference]: Start difference. First operand 145 states and 196 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:31:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:31:01,657 INFO L93 Difference]: Finished difference Result 247 states and 335 transitions. [2025-02-08 01:31:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:31:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 187 [2025-02-08 01:31:01,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:31:01,661 INFO L225 Difference]: With dead ends: 247 [2025-02-08 01:31:01,661 INFO L226 Difference]: Without dead ends: 145 [2025-02-08 01:31:01,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 01:31:01,662 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 27 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-08 01:31:01,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 621 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-08 01:31:01,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-02-08 01:31:01,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-02-08 01:31:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2025-02-08 01:31:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2025-02-08 01:31:01,676 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 187 [2025-02-08 01:31:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:31:01,677 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2025-02-08 01:31:01,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:31:01,677 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2025-02-08 01:31:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-02-08 01:31:01,680 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:31:01,680 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 3, 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, 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] [2025-02-08 01:31:01,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 01:31:01,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:31:01,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:31:01,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:31:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1677468758, now seen corresponding path program 2 times [2025-02-08 01:31:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:31:01,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566290954] [2025-02-08 01:31:01,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:31:01,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:31:05,618 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 201 statements into 2 equivalence classes. [2025-02-08 01:31:06,381 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 201 of 201 statements. [2025-02-08 01:31:06,382 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 01:31:06,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 605 trivial. 0 not checked. [2025-02-08 01:31:08,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:31:08,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566290954] [2025-02-08 01:31:08,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566290954] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:31:08,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:31:08,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:31:08,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539869856] [2025-02-08 01:31:08,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:31:08,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:31:08,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:31:08,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:31:08,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:31:08,110 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:31:10,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:31:12,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 01:31:12,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 01:31:12,594 INFO L93 Difference]: Finished difference Result 219 states and 291 transitions. [2025-02-08 01:31:12,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:31:12,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 201 [2025-02-08 01:31:12,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 01:31:12,599 INFO L225 Difference]: With dead ends: 219 [2025-02-08 01:31:12,601 INFO L226 Difference]: Without dead ends: 145 [2025-02-08 01:31:12,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:31:12,602 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 21 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-02-08 01:31:12,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 776 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-02-08 01:31:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-02-08 01:31:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-02-08 01:31:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (51), 49 states have call predecessors, (51), 49 states have call successors, (51) [2025-02-08 01:31:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 192 transitions. [2025-02-08 01:31:12,628 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 192 transitions. Word has length 201 [2025-02-08 01:31:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 01:31:12,629 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 192 transitions. [2025-02-08 01:31:12,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 4 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2025-02-08 01:31:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 192 transitions. [2025-02-08 01:31:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2025-02-08 01:31:12,632 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 01:31:12,632 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-02-08 01:31:12,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:31:12,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-08 01:31:12,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:31:12,633 INFO L85 PathProgramCache]: Analyzing trace with hash 606890566, now seen corresponding path program 3 times [2025-02-08 01:31:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:31:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998559495] [2025-02-08 01:31:12,633 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:31:12,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:31:16,348 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 229 statements into 14 equivalence classes. [2025-02-08 01:31:18,500 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 55 of 229 statements. [2025-02-08 01:31:18,501 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 01:31:18,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:31:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2025-02-08 01:31:20,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:31:20,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998559495] [2025-02-08 01:31:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998559495] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 01:31:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029504398] [2025-02-08 01:31:20,984 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 01:31:20,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 01:31:20,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:31:20,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 01:31:20,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 01:31:25,638 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 229 statements into 14 equivalence classes.