./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 15:28:57,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 15:28:57,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 15:28:57,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 15:28:57,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 15:28:57,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 15:28:57,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 15:28:57,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 15:28:57,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 15:28:57,576 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 15:28:57,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 15:28:57,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 15:28:57,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 15:28:57,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 15:28:57,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 15:28:57,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 15:28:57,579 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 15:28:57,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:28:57,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:28:57,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 15:28:57,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 15:28:57,581 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 15:28:57,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 15:28:57,581 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b62f33a7ccb058dd1bccedc0e4fe3fa92f34517f00ef57b41d6990849c30929b [2025-01-09 15:28:57,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 15:28:57,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 15:28:57,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 15:28:57,812 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 15:28:57,815 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 15:28:57,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2025-01-09 15:28:58,988 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4dad7af9c/e2f22b183925495698afb4a20e2a9141/FLAG812a242fa [2025-01-09 15:28:59,196 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 15:28:59,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i [2025-01-09 15:28:59,210 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4dad7af9c/e2f22b183925495698afb4a20e2a9141/FLAG812a242fa [2025-01-09 15:28:59,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4dad7af9c/e2f22b183925495698afb4a20e2a9141 [2025-01-09 15:28:59,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 15:28:59,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 15:28:59,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 15:28:59,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 15:28:59,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 15:28:59,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cf4d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59, skipping insertion in model container [2025-01-09 15:28:59,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 15:28:59,375 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2025-01-09 15:28:59,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 15:28:59,437 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 15:28:59,446 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929] [2025-01-09 15:28:59,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 15:28:59,496 INFO L204 MainTranslator]: Completed translation [2025-01-09 15:28:59,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59 WrapperNode [2025-01-09 15:28:59,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 15:28:59,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 15:28:59,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 15:28:59,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 15:28:59,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,544 INFO L138 Inliner]: procedures = 29, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2025-01-09 15:28:59,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 15:28:59,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 15:28:59,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 15:28:59,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 15:28:59,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,576 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2]. [2025-01-09 15:28:59,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,602 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 15:28:59,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 15:28:59,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 15:28:59,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 15:28:59,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (1/1) ... [2025-01-09 15:28:59,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:28:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:28:59,655 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) [2025-01-09 15:28:59,660 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 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 15:28:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 15:28:59,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 15:28:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-01-09 15:28:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 15:28:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 15:28:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 15:28:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 15:28:59,804 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 15:28:59,805 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 15:29:00,188 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2025-01-09 15:29:00,188 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 15:29:00,200 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 15:29:00,200 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 15:29:00,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:29:00 BoogieIcfgContainer [2025-01-09 15:29:00,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 15:29:00,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 15:29:00,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 15:29:00,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 15:29:00,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:28:59" (1/3) ... [2025-01-09 15:29:00,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6180a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:29:00, skipping insertion in model container [2025-01-09 15:29:00,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:28:59" (2/3) ... [2025-01-09 15:29:00,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6180a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:29:00, skipping insertion in model container [2025-01-09 15:29:00,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:29:00" (3/3) ... [2025-01-09 15:29:00,208 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i [2025-01-09 15:29:00,218 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 15:29:00,219 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-97.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 15:29:00,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 15:29:00,273 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;@7faf09dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 15:29:00,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 15:29:00,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 88 states have internal predecessors, (121), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 15:29:00,287 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:00,287 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:00,287 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:00,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1220435105, now seen corresponding path program 1 times [2025-01-09 15:29:00,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:00,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811647413] [2025-01-09 15:29:00,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:00,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:00,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:00,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:00,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:00,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-01-09 15:29:00,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:00,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811647413] [2025-01-09 15:29:00,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811647413] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:00,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200493070] [2025-01-09 15:29:00,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:00,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:00,582 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) [2025-01-09 15:29:00,587 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 [2025-01-09 15:29:00,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:00,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:00,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:00,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:00,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 15:29:00,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-01-09 15:29:00,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:29:00,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200493070] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:00,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:29:00,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 15:29:00,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342627622] [2025-01-09 15:29:00,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:00,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 15:29:00,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:00,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 15:29:00,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 15:29:00,824 INFO L87 Difference]: Start difference. First operand has 107 states, 87 states have (on average 1.3908045977011494) internal successors, (121), 88 states have internal predecessors, (121), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 15:29:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:00,847 INFO L93 Difference]: Finished difference Result 208 states and 322 transitions. [2025-01-09 15:29:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 15:29:00,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2025-01-09 15:29:00,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:00,858 INFO L225 Difference]: With dead ends: 208 [2025-01-09 15:29:00,858 INFO L226 Difference]: Without dead ends: 104 [2025-01-09 15:29:00,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 15:29:00,862 INFO L435 NwaCegarLoop]: 150 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, 150 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 [2025-01-09 15:29:00,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:29:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-01-09 15:29:00,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-01-09 15:29:00,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3647058823529412) internal successors, (116), 85 states have internal predecessors, (116), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:00,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2025-01-09 15:29:00,887 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 134 [2025-01-09 15:29:00,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:00,888 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2025-01-09 15:29:00,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 15:29:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2025-01-09 15:29:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 15:29:00,890 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:00,890 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:00,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 15:29:01,090 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 [2025-01-09 15:29:01,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:01,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:01,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1728250801, now seen corresponding path program 1 times [2025-01-09 15:29:01,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:01,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255546414] [2025-01-09 15:29:01,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:01,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:01,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:01,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:01,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:01,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:01,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:01,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255546414] [2025-01-09 15:29:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255546414] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:01,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78195992] [2025-01-09 15:29:01,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:01,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:01,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:01,509 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) [2025-01-09 15:29:01,511 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 [2025-01-09 15:29:01,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:01,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:01,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:01,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:01,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:29:01,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:01,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:29:01,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78195992] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:01,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:29:01,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 15:29:01,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758095159] [2025-01-09 15:29:01,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:01,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:29:01,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:01,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:29:01,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:01,693 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:01,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:01,722 INFO L93 Difference]: Finished difference Result 208 states and 301 transitions. [2025-01-09 15:29:01,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:29:01,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2025-01-09 15:29:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:01,724 INFO L225 Difference]: With dead ends: 208 [2025-01-09 15:29:01,724 INFO L226 Difference]: Without dead ends: 107 [2025-01-09 15:29:01,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:01,725 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:01,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 431 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:29:01,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-01-09 15:29:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2025-01-09 15:29:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2025-01-09 15:29:01,745 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 134 [2025-01-09 15:29:01,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:01,746 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2025-01-09 15:29:01,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2025-01-09 15:29:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 15:29:01,747 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:01,748 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:01,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 15:29:01,948 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 [2025-01-09 15:29:01,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:01,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:01,950 INFO L85 PathProgramCache]: Analyzing trace with hash 46756561, now seen corresponding path program 1 times [2025-01-09 15:29:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:01,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477487977] [2025-01-09 15:29:01,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:01,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:01,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:01,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:01,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:01,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:02,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:02,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477487977] [2025-01-09 15:29:02,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477487977] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:02,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572229343] [2025-01-09 15:29:02,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:02,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:02,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:02,180 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) [2025-01-09 15:29:02,186 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 [2025-01-09 15:29:02,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:02,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:02,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:02,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:02,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:29:02,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:02,396 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:29:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572229343] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:02,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:29:02,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 15:29:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052609662] [2025-01-09 15:29:02,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:02,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:29:02,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:02,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:29:02,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:02,399 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:02,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:02,423 INFO L93 Difference]: Finished difference Result 212 states and 305 transitions. [2025-01-09 15:29:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:29:02,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2025-01-09 15:29:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:02,424 INFO L225 Difference]: With dead ends: 212 [2025-01-09 15:29:02,425 INFO L226 Difference]: Without dead ends: 109 [2025-01-09 15:29:02,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:02,426 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:02,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:29:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-01-09 15:29:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2025-01-09 15:29:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 89 states have (on average 1.348314606741573) internal successors, (120), 89 states have internal predecessors, (120), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2025-01-09 15:29:02,433 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 134 [2025-01-09 15:29:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:02,433 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2025-01-09 15:29:02,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2025-01-09 15:29:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 15:29:02,435 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:02,435 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:02,443 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 [2025-01-09 15:29:02,635 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 [2025-01-09 15:29:02,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:02,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 48603603, now seen corresponding path program 1 times [2025-01-09 15:29:02,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:02,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462940266] [2025-01-09 15:29:02,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:02,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:02,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:02,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:02,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:02,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:02,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462940266] [2025-01-09 15:29:02,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462940266] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:02,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621450621] [2025-01-09 15:29:02,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:02,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:02,805 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) [2025-01-09 15:29:02,806 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 [2025-01-09 15:29:02,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 15:29:02,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 15:29:02,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:02,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:02,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:29:02,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:02,982 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:02,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:29:02,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621450621] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:02,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:29:02,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2025-01-09 15:29:02,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556790234] [2025-01-09 15:29:02,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:02,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:29:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:02,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:29:02,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:29:02,984 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:03,004 INFO L93 Difference]: Finished difference Result 215 states and 308 transitions. [2025-01-09 15:29:03,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:29:03,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2025-01-09 15:29:03,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:03,005 INFO L225 Difference]: With dead ends: 215 [2025-01-09 15:29:03,005 INFO L226 Difference]: Without dead ends: 110 [2025-01-09 15:29:03,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:29:03,006 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:03,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:29:03,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-01-09 15:29:03,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2025-01-09 15:29:03,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2025-01-09 15:29:03,012 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 134 [2025-01-09 15:29:03,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:03,012 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2025-01-09 15:29:03,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2025-01-09 15:29:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 15:29:03,014 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:03,014 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:03,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 15:29:03,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:03,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:03,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:03,219 INFO L85 PathProgramCache]: Analyzing trace with hash 907417221, now seen corresponding path program 1 times [2025-01-09 15:29:03,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:03,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885936065] [2025-01-09 15:29:03,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:03,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:03,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:03,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:03,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:03,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:03,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:03,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885936065] [2025-01-09 15:29:03,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885936065] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:03,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:03,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 15:29:03,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875891583] [2025-01-09 15:29:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:03,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 15:29:03,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:03,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 15:29:03,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 15:29:03,521 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:03,607 INFO L93 Difference]: Finished difference Result 326 states and 464 transitions. [2025-01-09 15:29:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 15:29:03,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2025-01-09 15:29:03,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:03,609 INFO L225 Difference]: With dead ends: 326 [2025-01-09 15:29:03,610 INFO L226 Difference]: Without dead ends: 219 [2025-01-09 15:29:03,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:29:03,610 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 142 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:03,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 673 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 15:29:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-01-09 15:29:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 121. [2025-01-09 15:29:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 172 transitions. [2025-01-09 15:29:03,617 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 172 transitions. Word has length 136 [2025-01-09 15:29:03,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:03,618 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 172 transitions. [2025-01-09 15:29:03,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:03,618 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 172 transitions. [2025-01-09 15:29:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 15:29:03,619 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:03,619 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:03,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 15:29:03,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:03,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:03,619 INFO L85 PathProgramCache]: Analyzing trace with hash 773403715, now seen corresponding path program 1 times [2025-01-09 15:29:03,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:03,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894329341] [2025-01-09 15:29:03,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:03,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:03,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:03,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:03,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:03,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:03,980 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:03,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894329341] [2025-01-09 15:29:03,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894329341] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:03,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:03,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:03,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168137461] [2025-01-09 15:29:03,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:03,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:03,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:03,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:03,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:03,982 INFO L87 Difference]: Start difference. First operand 121 states and 172 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:04,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:04,198 INFO L93 Difference]: Finished difference Result 329 states and 466 transitions. [2025-01-09 15:29:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 15:29:04,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2025-01-09 15:29:04,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:04,200 INFO L225 Difference]: With dead ends: 329 [2025-01-09 15:29:04,200 INFO L226 Difference]: Without dead ends: 211 [2025-01-09 15:29:04,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:04,201 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 303 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:04,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 596 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 15:29:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-01-09 15:29:04,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 123. [2025-01-09 15:29:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3461538461538463) internal successors, (140), 104 states have internal predecessors, (140), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-01-09 15:29:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 174 transitions. [2025-01-09 15:29:04,208 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 174 transitions. Word has length 136 [2025-01-09 15:29:04,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:04,209 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 174 transitions. [2025-01-09 15:29:04,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:04,209 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 174 transitions. [2025-01-09 15:29:04,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 15:29:04,210 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:04,210 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:04,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 15:29:04,210 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:04,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1699666956, now seen corresponding path program 1 times [2025-01-09 15:29:04,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778660384] [2025-01-09 15:29:04,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:04,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:04,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:04,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:04,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:04,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778660384] [2025-01-09 15:29:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778660384] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120983929] [2025-01-09 15:29:04,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:04,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:04,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:04,751 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 15:29:04,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 15:29:04,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:04,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:04,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:04,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:04,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 15:29:04,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:04,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-09 15:29:05,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2025-01-09 15:29:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2025-01-09 15:29:05,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 15:29:05,662 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:05,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120983929] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 15:29:05,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 15:29:05,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2025-01-09 15:29:05,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112139220] [2025-01-09 15:29:05,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 15:29:05,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-09 15:29:05,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:05,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-09 15:29:05,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2025-01-09 15:29:05,663 INFO L87 Difference]: Start difference. First operand 123 states and 174 transitions. Second operand has 19 states, 16 states have (on average 5.125) internal successors, (82), 19 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2025-01-09 15:29:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:06,375 INFO L93 Difference]: Finished difference Result 369 states and 517 transitions. [2025-01-09 15:29:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-09 15:29:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.125) internal successors, (82), 19 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) Word has length 136 [2025-01-09 15:29:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:06,377 INFO L225 Difference]: With dead ends: 369 [2025-01-09 15:29:06,377 INFO L226 Difference]: Without dead ends: 249 [2025-01-09 15:29:06,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 263 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=1121, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 15:29:06,379 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 940 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:06,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 969 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 15:29:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-01-09 15:29:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 223. [2025-01-09 15:29:06,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 184 states have internal predecessors, (240), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2025-01-09 15:29:06,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 312 transitions. [2025-01-09 15:29:06,395 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 312 transitions. Word has length 136 [2025-01-09 15:29:06,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:06,395 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 312 transitions. [2025-01-09 15:29:06,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.125) internal successors, (82), 19 states have internal predecessors, (82), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2025-01-09 15:29:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 312 transitions. [2025-01-09 15:29:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 15:29:06,396 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:06,396 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:06,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 15:29:06,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:06,597 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:06,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1338810405, now seen corresponding path program 1 times [2025-01-09 15:29:06,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:06,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895752683] [2025-01-09 15:29:06,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:06,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:06,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:06,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:06,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:06,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:07,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:07,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895752683] [2025-01-09 15:29:07,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895752683] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:07,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357026296] [2025-01-09 15:29:07,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:07,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:07,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:07,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 15:29:07,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 15:29:07,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:07,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:07,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:07,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:07,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-01-09 15:29:07,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:07,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-01-09 15:29:07,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2025-01-09 15:29:07,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2025-01-09 15:29:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 16 proven. 48 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2025-01-09 15:29:07,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 15:29:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357026296] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 15:29:07,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 15:29:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2025-01-09 15:29:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132806068] [2025-01-09 15:29:07,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 15:29:07,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-09 15:29:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:07,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-09 15:29:07,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2025-01-09 15:29:07,932 INFO L87 Difference]: Start difference. First operand 223 states and 312 transitions. Second operand has 19 states, 16 states have (on average 5.0) internal successors, (80), 19 states have internal predecessors, (80), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 1 states have call predecessors, (35), 4 states have call successors, (35) [2025-01-09 15:29:08,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:08,600 INFO L93 Difference]: Finished difference Result 618 states and 851 transitions. [2025-01-09 15:29:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-01-09 15:29:08,601 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 5.0) internal successors, (80), 19 states have internal predecessors, (80), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 1 states have call predecessors, (35), 4 states have call successors, (35) Word has length 136 [2025-01-09 15:29:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:08,603 INFO L225 Difference]: With dead ends: 618 [2025-01-09 15:29:08,604 INFO L226 Difference]: Without dead ends: 403 [2025-01-09 15:29:08,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 262 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=285, Invalid=1121, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 15:29:08,605 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 464 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:08,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1088 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 15:29:08,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-01-09 15:29:08,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 183. [2025-01-09 15:29:08,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 142 states have (on average 1.2746478873239437) internal successors, (181), 143 states have internal predecessors, (181), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 249 transitions. [2025-01-09 15:29:08,622 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 249 transitions. Word has length 136 [2025-01-09 15:29:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:08,622 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 249 transitions. [2025-01-09 15:29:08,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 5.0) internal successors, (80), 19 states have internal predecessors, (80), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 1 states have call predecessors, (35), 4 states have call successors, (35) [2025-01-09 15:29:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 249 transitions. [2025-01-09 15:29:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 15:29:08,623 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:08,623 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:08,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 15:29:08,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-09 15:29:08,828 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:08,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:08,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1204796899, now seen corresponding path program 1 times [2025-01-09 15:29:08,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:08,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677131479] [2025-01-09 15:29:08,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:08,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:08,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:08,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:08,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:08,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:09,196 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:09,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677131479] [2025-01-09 15:29:09,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677131479] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:29:09,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066499546] [2025-01-09 15:29:09,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:09,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:09,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:29:09,201 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 15:29:09,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 15:29:09,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 15:29:09,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 15:29:09,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:09,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:09,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 15:29:09,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:29:09,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2025-01-09 15:29:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 132 proven. 42 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2025-01-09 15:29:09,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 15:29:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-01-09 15:29:09,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066499546] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 15:29:09,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 15:29:09,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2025-01-09 15:29:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661512081] [2025-01-09 15:29:09,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 15:29:09,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-09 15:29:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:09,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-09 15:29:09,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-01-09 15:29:09,766 INFO L87 Difference]: Start difference. First operand 183 states and 249 transitions. Second operand has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2025-01-09 15:29:10,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:10,077 INFO L93 Difference]: Finished difference Result 302 states and 411 transitions. [2025-01-09 15:29:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 15:29:10,078 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) Word has length 136 [2025-01-09 15:29:10,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:10,079 INFO L225 Difference]: With dead ends: 302 [2025-01-09 15:29:10,079 INFO L226 Difference]: Without dead ends: 174 [2025-01-09 15:29:10,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 266 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2025-01-09 15:29:10,080 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 451 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:10,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 490 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 15:29:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-01-09 15:29:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 170. [2025-01-09 15:29:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 129 states have (on average 1.248062015503876) internal successors, (161), 130 states have internal predecessors, (161), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:10,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 229 transitions. [2025-01-09 15:29:10,091 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 229 transitions. Word has length 136 [2025-01-09 15:29:10,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:10,091 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 229 transitions. [2025-01-09 15:29:10,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.888888888888889) internal successors, (71), 12 states have internal predecessors, (71), 6 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 3 states have call predecessors, (35), 6 states have call successors, (35) [2025-01-09 15:29:10,091 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 229 transitions. [2025-01-09 15:29:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 15:29:10,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:10,092 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:10,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 15:29:10,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:29:10,297 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -36837433, now seen corresponding path program 1 times [2025-01-09 15:29:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498787309] [2025-01-09 15:29:10,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:10,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 15:29:10,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 15:29:10,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:10,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498787309] [2025-01-09 15:29:10,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498787309] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:10,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:10,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:10,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121392184] [2025-01-09 15:29:10,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:10,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:10,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:10,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:10,471 INFO L87 Difference]: Start difference. First operand 170 states and 229 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:10,585 INFO L93 Difference]: Finished difference Result 403 states and 547 transitions. [2025-01-09 15:29:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 15:29:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2025-01-09 15:29:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:10,587 INFO L225 Difference]: With dead ends: 403 [2025-01-09 15:29:10,587 INFO L226 Difference]: Without dead ends: 288 [2025-01-09 15:29:10,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 15:29:10,590 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 139 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:10,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 983 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 15:29:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2025-01-09 15:29:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 174. [2025-01-09 15:29:10,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 133 states have (on average 1.255639097744361) internal successors, (167), 134 states have internal predecessors, (167), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 235 transitions. [2025-01-09 15:29:10,608 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 235 transitions. Word has length 137 [2025-01-09 15:29:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:10,608 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 235 transitions. [2025-01-09 15:29:10,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:10,609 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions. [2025-01-09 15:29:10,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 15:29:10,609 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:10,610 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:10,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 15:29:10,610 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:10,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 889425808, now seen corresponding path program 1 times [2025-01-09 15:29:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:10,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288253967] [2025-01-09 15:29:10,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:10,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 15:29:10,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 15:29:10,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:10,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:10,795 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:10,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288253967] [2025-01-09 15:29:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288253967] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:10,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:10,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:10,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531207779] [2025-01-09 15:29:10,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:10,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:10,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:10,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:10,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:10,797 INFO L87 Difference]: Start difference. First operand 174 states and 235 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:10,925 INFO L93 Difference]: Finished difference Result 414 states and 563 transitions. [2025-01-09 15:29:10,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 15:29:10,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2025-01-09 15:29:10,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:10,927 INFO L225 Difference]: With dead ends: 414 [2025-01-09 15:29:10,927 INFO L226 Difference]: Without dead ends: 295 [2025-01-09 15:29:10,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:29:10,929 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 137 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:10,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 721 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 15:29:10,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-01-09 15:29:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 191. [2025-01-09 15:29:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 150 states have (on average 1.2733333333333334) internal successors, (191), 151 states have internal predecessors, (191), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:10,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 259 transitions. [2025-01-09 15:29:10,950 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 259 transitions. Word has length 137 [2025-01-09 15:29:10,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:10,952 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 259 transitions. [2025-01-09 15:29:10,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 259 transitions. [2025-01-09 15:29:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 15:29:10,954 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:10,955 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:10,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 15:29:10,955 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:10,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1029974418, now seen corresponding path program 1 times [2025-01-09 15:29:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488575612] [2025-01-09 15:29:10,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:10,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:10,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 15:29:10,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 15:29:10,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:10,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488575612] [2025-01-09 15:29:11,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488575612] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:11,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:11,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:11,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335595262] [2025-01-09 15:29:11,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:11,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:11,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:11,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:11,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:11,232 INFO L87 Difference]: Start difference. First operand 191 states and 259 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:11,333 INFO L93 Difference]: Finished difference Result 327 states and 446 transitions. [2025-01-09 15:29:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 15:29:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2025-01-09 15:29:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:11,335 INFO L225 Difference]: With dead ends: 327 [2025-01-09 15:29:11,335 INFO L226 Difference]: Without dead ends: 191 [2025-01-09 15:29:11,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:29:11,337 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:11,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 352 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 15:29:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-01-09 15:29:11,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 174. [2025-01-09 15:29:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 133 states have (on average 1.2406015037593985) internal successors, (165), 134 states have internal predecessors, (165), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 233 transitions. [2025-01-09 15:29:11,353 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 233 transitions. Word has length 137 [2025-01-09 15:29:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:11,353 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 233 transitions. [2025-01-09 15:29:11,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2025-01-09 15:29:11,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-01-09 15:29:11,354 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:11,355 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:11,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 15:29:11,355 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:11,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1769513926, now seen corresponding path program 1 times [2025-01-09 15:29:11,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:11,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519849594] [2025-01-09 15:29:11,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:11,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 15:29:11,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 15:29:11,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:11,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:11,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:11,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519849594] [2025-01-09 15:29:11,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519849594] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:11,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:11,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 15:29:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371397230] [2025-01-09 15:29:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:11,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 15:29:11,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:11,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 15:29:11,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:29:11,720 INFO L87 Difference]: Start difference. First operand 174 states and 233 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 15:29:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:12,001 INFO L93 Difference]: Finished difference Result 394 states and 524 transitions. [2025-01-09 15:29:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 15:29:12,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2025-01-09 15:29:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:12,003 INFO L225 Difference]: With dead ends: 394 [2025-01-09 15:29:12,004 INFO L226 Difference]: Without dead ends: 275 [2025-01-09 15:29:12,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-01-09 15:29:12,004 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 199 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:12,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1064 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 15:29:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2025-01-09 15:29:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 178. [2025-01-09 15:29:12,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 136 states have (on average 1.2279411764705883) internal successors, (167), 137 states have internal predecessors, (167), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 235 transitions. [2025-01-09 15:29:12,024 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 235 transitions. Word has length 138 [2025-01-09 15:29:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:12,025 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 235 transitions. [2025-01-09 15:29:12,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 15:29:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 235 transitions. [2025-01-09 15:29:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 15:29:12,028 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:12,028 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:12,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 15:29:12,028 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:12,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1329223490, now seen corresponding path program 1 times [2025-01-09 15:29:12,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:12,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681480885] [2025-01-09 15:29:12,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:12,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:12,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 15:29:12,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 15:29:12,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:12,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:12,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:12,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681480885] [2025-01-09 15:29:12,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681480885] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:12,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:12,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:12,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415192852] [2025-01-09 15:29:12,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:12,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:12,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:12,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:12,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:12,721 INFO L87 Difference]: Start difference. First operand 178 states and 235 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:12,976 INFO L93 Difference]: Finished difference Result 385 states and 505 transitions. [2025-01-09 15:29:12,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 15:29:12,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2025-01-09 15:29:12,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:12,979 INFO L225 Difference]: With dead ends: 385 [2025-01-09 15:29:12,979 INFO L226 Difference]: Without dead ends: 262 [2025-01-09 15:29:12,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 15:29:12,980 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 80 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:12,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 776 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 15:29:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2025-01-09 15:29:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 200. [2025-01-09 15:29:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 158 states have (on average 1.2341772151898733) internal successors, (195), 159 states have internal predecessors, (195), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 263 transitions. [2025-01-09 15:29:12,999 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 263 transitions. Word has length 139 [2025-01-09 15:29:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:13,000 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 263 transitions. [2025-01-09 15:29:13,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 263 transitions. [2025-01-09 15:29:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 15:29:13,001 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:13,001 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:13,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 15:29:13,002 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:13,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -250679124, now seen corresponding path program 1 times [2025-01-09 15:29:13,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:13,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695986987] [2025-01-09 15:29:13,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:13,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 15:29:13,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 15:29:13,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:13,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:29:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-01-09 15:29:13,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:29:13,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695986987] [2025-01-09 15:29:13,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695986987] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:29:13,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:29:13,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:29:13,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136066751] [2025-01-09 15:29:13,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:29:13,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:29:13,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:29:13,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:29:13,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:29:13,353 INFO L87 Difference]: Start difference. First operand 200 states and 263 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:13,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:29:13,625 INFO L93 Difference]: Finished difference Result 448 states and 588 transitions. [2025-01-09 15:29:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 15:29:13,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2025-01-09 15:29:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:29:13,628 INFO L225 Difference]: With dead ends: 448 [2025-01-09 15:29:13,628 INFO L226 Difference]: Without dead ends: 299 [2025-01-09 15:29:13,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 15:29:13,629 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 239 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 15:29:13,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 621 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 15:29:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-01-09 15:29:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 203. [2025-01-09 15:29:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 161 states have (on average 1.2173913043478262) internal successors, (196), 162 states have internal predecessors, (196), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2025-01-09 15:29:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 264 transitions. [2025-01-09 15:29:13,649 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 264 transitions. Word has length 139 [2025-01-09 15:29:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:29:13,649 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 264 transitions. [2025-01-09 15:29:13,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 15:29:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 264 transitions. [2025-01-09 15:29:13,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 15:29:13,651 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:29:13,651 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 15:29:13,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 15:29:13,651 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:29:13,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:29:13,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1094521951, now seen corresponding path program 1 times [2025-01-09 15:29:13,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:29:13,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467481143] [2025-01-09 15:29:13,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:29:13,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:29:13,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 15:29:13,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 15:29:13,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:29:13,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat