./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.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-p_file-40.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 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 15:46:10,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 15:46:10,152 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 15:46:10,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 15:46:10,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 15:46:10,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 15:46:10,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 15:46:10,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 15:46:10,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 15:46:10,185 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 15:46:10,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 15:46:10,186 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 15:46:10,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 15:46:10,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 15:46:10,186 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 15:46:10,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 15:46:10,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 15:46:10,188 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 15:46:10,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:46:10,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:46:10,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 15:46:10,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 15:46:10,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 15:46:10,190 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 15:46:10,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 15:46:10,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 15:46:10,190 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 -> 635d22826d94d730e7ad3ae4f19cd66841ae17da2d3a120d8f593801b41e2197 [2025-01-09 15:46:10,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 15:46:10,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 15:46:10,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 15:46:10,416 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 15:46:10,416 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 15:46:10,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2025-01-09 15:46:11,666 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5e6a4eb/904f6539940c485985fbf4d8a6f9edfb/FLAG5aa337efb [2025-01-09 15:46:11,975 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 15:46:11,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-40.i [2025-01-09 15:46:11,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5e6a4eb/904f6539940c485985fbf4d8a6f9edfb/FLAG5aa337efb [2025-01-09 15:46:12,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5e6a4eb/904f6539940c485985fbf4d8a6f9edfb [2025-01-09 15:46:12,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 15:46:12,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 15:46:12,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 15:46:12,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 15:46:12,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 15:46:12,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c32452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12, skipping insertion in model container [2025-01-09 15:46:12,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 15:46:12,424 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-p_file-40.i[916,929] [2025-01-09 15:46:12,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 15:46:12,499 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 15:46:12,508 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-p_file-40.i[916,929] [2025-01-09 15:46:12,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 15:46:12,558 INFO L204 MainTranslator]: Completed translation [2025-01-09 15:46:12,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12 WrapperNode [2025-01-09 15:46:12,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 15:46:12,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 15:46:12,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 15:46:12,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 15:46:12,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,610 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2025-01-09 15:46:12,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 15:46:12,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 15:46:12,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 15:46:12,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 15:46:12,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,629 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,660 INFO L175 MemorySlicer]: Split 120 memory accesses to 17 slices as follows [2, 3, 6, 10, 5, 7, 7, 6, 8, 4, 10, 9, 8, 10, 15, 3, 7]. 13 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-01-09 15:46:12,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 15:46:12,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 15:46:12,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 15:46:12,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 15:46:12,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (1/1) ... [2025-01-09 15:46:12,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 15:46:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:12,783 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 15:46:12,787 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 15:46:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 15:46:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2025-01-09 15:46:12,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 15:46:12,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2025-01-09 15:46:12,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 15:46:12,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-01-09 15:46:12,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 15:46:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 15:46:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 15:46:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 15:46:12,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 15:46:12,978 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 15:46:12,980 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 15:46:13,339 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2025-01-09 15:46:13,339 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 15:46:13,349 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 15:46:13,349 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 15:46:13,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:46:13 BoogieIcfgContainer [2025-01-09 15:46:13,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 15:46:13,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 15:46:13,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 15:46:13,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 15:46:13,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:46:12" (1/3) ... [2025-01-09 15:46:13,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f53b216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:46:13, skipping insertion in model container [2025-01-09 15:46:13,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:12" (2/3) ... [2025-01-09 15:46:13,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f53b216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:46:13, skipping insertion in model container [2025-01-09 15:46:13,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:46:13" (3/3) ... [2025-01-09 15:46:13,356 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-40.i [2025-01-09 15:46:13,364 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 15:46:13,367 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-40.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 15:46:13,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 15:46:13,408 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;@4b985bd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 15:46:13,408 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 15:46:13,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 91 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 15:46:13,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:13,446 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:13,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:13,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash -697243676, now seen corresponding path program 1 times [2025-01-09 15:46:13,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:13,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864226017] [2025-01-09 15:46:13,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:13,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:13,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:13,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:13,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:13,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:13,672 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-01-09 15:46:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864226017] [2025-01-09 15:46:13,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864226017] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141332082] [2025-01-09 15:46:13,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:13,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:13,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:13,683 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 15:46:13,684 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 15:46:13,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:13,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:13,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:13,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:13,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 15:46:13,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-01-09 15:46:13,937 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:13,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141332082] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:13,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:13,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 15:46:13,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478003519] [2025-01-09 15:46:13,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:13,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 15:46:13,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:13,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 15:46:13,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 15:46:13,957 INFO L87 Difference]: Start difference. First operand has 112 states, 90 states have (on average 1.4111111111111112) internal successors, (127), 91 states have internal predecessors, (127), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 15:46:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:13,975 INFO L93 Difference]: Finished difference Result 218 states and 344 transitions. [2025-01-09 15:46:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 15:46:13,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2025-01-09 15:46:13,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:13,981 INFO L225 Difference]: With dead ends: 218 [2025-01-09 15:46:13,982 INFO L226 Difference]: Without dead ends: 109 [2025-01-09 15:46:13,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 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 15:46:13,986 INFO L435 NwaCegarLoop]: 160 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, 160 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 15:46:13,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-01-09 15:46:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2025-01-09 15:46:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 88 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 160 transitions. [2025-01-09 15:46:14,026 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 160 transitions. Word has length 150 [2025-01-09 15:46:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:14,027 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 160 transitions. [2025-01-09 15:46:14,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 15:46:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 160 transitions. [2025-01-09 15:46:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 15:46:14,029 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:14,029 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:14,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 15:46:14,230 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 15:46:14,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:14,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 168043830, now seen corresponding path program 1 times [2025-01-09 15:46:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:14,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767950297] [2025-01-09 15:46:14,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:14,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:14,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:14,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:14,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-01-09 15:46:14,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767950297] [2025-01-09 15:46:14,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767950297] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:14,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317798565] [2025-01-09 15:46:14,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:14,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:14,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:14,690 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 15:46:14,700 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 15:46:14,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:14,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:14,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:14,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:14,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:46:14,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:14,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317798565] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:14,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:14,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 15:46:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130477139] [2025-01-09 15:46:14,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:14,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:46:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:14,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:46:14,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:46:14,962 INFO L87 Difference]: Start difference. First operand 109 states and 160 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:14,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:14,989 INFO L93 Difference]: Finished difference Result 218 states and 321 transitions. [2025-01-09 15:46:14,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:46:14,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2025-01-09 15:46:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:14,991 INFO L225 Difference]: With dead ends: 218 [2025-01-09 15:46:14,991 INFO L226 Difference]: Without dead ends: 112 [2025-01-09 15:46:14,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 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 15:46:14,992 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:46:14,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 460 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-01-09 15:46:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2025-01-09 15:46:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 90 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 162 transitions. [2025-01-09 15:46:15,001 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 162 transitions. Word has length 150 [2025-01-09 15:46:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:15,002 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 162 transitions. [2025-01-09 15:46:15,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 162 transitions. [2025-01-09 15:46:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 15:46:15,003 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:15,004 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:15,011 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 15:46:15,204 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 15:46:15,205 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:15,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:15,205 INFO L85 PathProgramCache]: Analyzing trace with hash 848102200, now seen corresponding path program 1 times [2025-01-09 15:46:15,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:15,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696682717] [2025-01-09 15:46:15,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:15,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:15,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:15,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:15,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-01-09 15:46:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696682717] [2025-01-09 15:46:15,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696682717] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106324118] [2025-01-09 15:46:15,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:15,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:15,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:15,608 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 15:46:15,617 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 15:46:15,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:15,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:15,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:15,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:15,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:46:15,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:15,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:15,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106324118] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:15,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:15,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 15:46:15,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172758721] [2025-01-09 15:46:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:15,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:46:15,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:15,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:46:15,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:46:15,889 INFO L87 Difference]: Start difference. First operand 111 states and 162 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:15,925 INFO L93 Difference]: Finished difference Result 222 states and 325 transitions. [2025-01-09 15:46:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:46:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2025-01-09 15:46:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:15,927 INFO L225 Difference]: With dead ends: 222 [2025-01-09 15:46:15,927 INFO L226 Difference]: Without dead ends: 114 [2025-01-09 15:46:15,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 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 15:46:15,928 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 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 15:46:15,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:15,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-01-09 15:46:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2025-01-09 15:46:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 92 states have internal predecessors, (126), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 164 transitions. [2025-01-09 15:46:15,945 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 164 transitions. Word has length 150 [2025-01-09 15:46:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:15,945 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 164 transitions. [2025-01-09 15:46:15,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 164 transitions. [2025-01-09 15:46:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 15:46:15,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:15,949 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:15,959 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 15:46:16,150 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 15:46:16,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:16,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:16,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1671857734, now seen corresponding path program 1 times [2025-01-09 15:46:16,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:16,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188691460] [2025-01-09 15:46:16,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:16,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:16,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:16,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:16,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:16,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:16,382 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-01-09 15:46:16,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:16,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188691460] [2025-01-09 15:46:16,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188691460] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:16,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710534106] [2025-01-09 15:46:16,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:16,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:16,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:16,390 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 15:46:16,392 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 15:46:16,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:16,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:16,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:16,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:16,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:46:16,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:16,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:16,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710534106] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:16,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:16,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 15:46:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554458147] [2025-01-09 15:46:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:16,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:46:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:16,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:46:16,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:46:16,702 INFO L87 Difference]: Start difference. First operand 113 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:16,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:16,750 INFO L93 Difference]: Finished difference Result 226 states and 329 transitions. [2025-01-09 15:46:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:46:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2025-01-09 15:46:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:16,752 INFO L225 Difference]: With dead ends: 226 [2025-01-09 15:46:16,752 INFO L226 Difference]: Without dead ends: 116 [2025-01-09 15:46:16,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 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 15:46:16,753 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 463 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 15:46:16,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-01-09 15:46:16,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2025-01-09 15:46:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 94 states have internal predecessors, (128), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 166 transitions. [2025-01-09 15:46:16,768 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 166 transitions. Word has length 150 [2025-01-09 15:46:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:16,772 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 166 transitions. [2025-01-09 15:46:16,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:16,772 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 166 transitions. [2025-01-09 15:46:16,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 15:46:16,773 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:16,773 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:16,788 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 15:46:16,974 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 15:46:16,974 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:16,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1670010692, now seen corresponding path program 1 times [2025-01-09 15:46:16,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:16,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758774221] [2025-01-09 15:46:16,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:17,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:17,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:17,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:17,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-01-09 15:46:17,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758774221] [2025-01-09 15:46:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758774221] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451733719] [2025-01-09 15:46:17,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:17,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:17,211 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 15:46:17,213 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 15:46:17,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 15:46:17,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 15:46:17,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:17,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:17,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 15:46:17,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:17,477 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:17,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451733719] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:17,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:17,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2025-01-09 15:46:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6288780] [2025-01-09 15:46:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:17,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 15:46:17,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:17,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 15:46:17,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 15:46:17,479 INFO L87 Difference]: Start difference. First operand 115 states and 166 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:17,502 INFO L93 Difference]: Finished difference Result 229 states and 332 transitions. [2025-01-09 15:46:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 15:46:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2025-01-09 15:46:17,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:17,505 INFO L225 Difference]: With dead ends: 229 [2025-01-09 15:46:17,505 INFO L226 Difference]: Without dead ends: 117 [2025-01-09 15:46:17,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 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 15:46:17,506 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 463 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 15:46:17,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 463 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:17,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-01-09 15:46:17,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-01-09 15:46:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 96 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 15:46:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 168 transitions. [2025-01-09 15:46:17,517 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 168 transitions. Word has length 150 [2025-01-09 15:46:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:17,517 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 168 transitions. [2025-01-09 15:46:17,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 168 transitions. [2025-01-09 15:46:17,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 15:46:17,518 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:17,519 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:17,529 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 15:46:17,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:17,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:17,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:17,721 INFO L85 PathProgramCache]: Analyzing trace with hash 297937550, now seen corresponding path program 1 times [2025-01-09 15:46:17,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:17,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850301997] [2025-01-09 15:46:17,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:17,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:17,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:17,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:17,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:17,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:23,601 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:23,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850301997] [2025-01-09 15:46:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850301997] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:46:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 15:46:23,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583192490] [2025-01-09 15:46:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:23,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 15:46:23,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:23,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 15:46:23,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 15:46:23,602 INFO L87 Difference]: Start difference. First operand 117 states and 168 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:26,815 INFO L93 Difference]: Finished difference Result 411 states and 589 transitions. [2025-01-09 15:46:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 15:46:26,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2025-01-09 15:46:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:26,818 INFO L225 Difference]: With dead ends: 411 [2025-01-09 15:46:26,818 INFO L226 Difference]: Without dead ends: 297 [2025-01-09 15:46:26,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-01-09 15:46:26,819 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 245 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 15:46:26,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 870 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 15:46:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2025-01-09 15:46:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 290. [2025-01-09 15:46:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 244 states have (on average 1.360655737704918) internal successors, (332), 245 states have internal predecessors, (332), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2025-01-09 15:46:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 416 transitions. [2025-01-09 15:46:26,840 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 416 transitions. Word has length 153 [2025-01-09 15:46:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:26,840 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 416 transitions. [2025-01-09 15:46:26,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:26,841 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 416 transitions. [2025-01-09 15:46:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 15:46:26,842 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:26,842 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:26,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 15:46:26,842 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:26,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1319005904, now seen corresponding path program 1 times [2025-01-09 15:46:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636274065] [2025-01-09 15:46:26,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:26,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:26,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:26,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:26,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:27,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:27,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636274065] [2025-01-09 15:46:27,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636274065] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:27,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:46:27,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 15:46:27,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905389872] [2025-01-09 15:46:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:27,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 15:46:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:27,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 15:46:27,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 15:46:27,307 INFO L87 Difference]: Start difference. First operand 290 states and 416 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:27,403 INFO L93 Difference]: Finished difference Result 749 states and 1066 transitions. [2025-01-09 15:46:27,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 15:46:27,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2025-01-09 15:46:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:27,406 INFO L225 Difference]: With dead ends: 749 [2025-01-09 15:46:27,406 INFO L226 Difference]: Without dead ends: 462 [2025-01-09 15:46:27,409 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 15:46:27,409 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 91 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:46:27,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 895 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2025-01-09 15:46:27,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 458. [2025-01-09 15:46:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 385 states have (on average 1.3376623376623376) internal successors, (515), 389 states have internal predecessors, (515), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2025-01-09 15:46:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 647 transitions. [2025-01-09 15:46:27,443 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 647 transitions. Word has length 153 [2025-01-09 15:46:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:27,443 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 647 transitions. [2025-01-09 15:46:27,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:27,443 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 647 transitions. [2025-01-09 15:46:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 15:46:27,445 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:27,445 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:27,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 15:46:27,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:27,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1515720868, now seen corresponding path program 1 times [2025-01-09 15:46:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:27,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521611837] [2025-01-09 15:46:27,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:27,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:27,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:27,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:27,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-01-09 15:46:27,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:27,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521611837] [2025-01-09 15:46:27,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521611837] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 15:46:27,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119858868] [2025-01-09 15:46:27,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:27,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 15:46:27,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 15:46:27,577 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 15:46:27,579 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 15:46:27,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:27,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:27,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:27,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:27,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 15:46:27,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 15:46:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:27,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 15:46:27,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119858868] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:27,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 15:46:27,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2025-01-09 15:46:27,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850958929] [2025-01-09 15:46:27,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:27,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 15:46:27,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:27,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 15:46:27,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 15:46:27,831 INFO L87 Difference]: Start difference. First operand 458 states and 647 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:27,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:27,863 INFO L93 Difference]: Finished difference Result 915 states and 1295 transitions. [2025-01-09 15:46:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 15:46:27,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2025-01-09 15:46:27,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:27,866 INFO L225 Difference]: With dead ends: 915 [2025-01-09 15:46:27,866 INFO L226 Difference]: Without dead ends: 473 [2025-01-09 15:46:27,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 15:46:27,868 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 15:46:27,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 613 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 15:46:27,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2025-01-09 15:46:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 463. [2025-01-09 15:46:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 390 states have (on average 1.3333333333333333) internal successors, (520), 394 states have internal predecessors, (520), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2025-01-09 15:46:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 652 transitions. [2025-01-09 15:46:27,892 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 652 transitions. Word has length 153 [2025-01-09 15:46:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:27,892 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 652 transitions. [2025-01-09 15:46:27,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 15:46:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 652 transitions. [2025-01-09 15:46:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 15:46:27,893 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:27,893 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:27,901 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 15:46:28,098 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 15:46:28,098 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:28,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash 438486160, now seen corresponding path program 1 times [2025-01-09 15:46:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604773992] [2025-01-09 15:46:28,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:28,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:28,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:28,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:28,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:28,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 15:46:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-01-09 15:46:28,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 15:46:28,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604773992] [2025-01-09 15:46:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604773992] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 15:46:28,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 15:46:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 15:46:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231151872] [2025-01-09 15:46:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 15:46:28,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 15:46:28,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 15:46:28,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 15:46:28,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 15:46:28,563 INFO L87 Difference]: Start difference. First operand 463 states and 652 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2025-01-09 15:46:28,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 15:46:28,871 INFO L93 Difference]: Finished difference Result 948 states and 1332 transitions. [2025-01-09 15:46:28,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 15:46:28,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2025-01-09 15:46:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 15:46:28,875 INFO L225 Difference]: With dead ends: 948 [2025-01-09 15:46:28,875 INFO L226 Difference]: Without dead ends: 501 [2025-01-09 15:46:28,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-01-09 15:46:28,878 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 230 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 15:46:28,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1147 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 15:46:28,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2025-01-09 15:46:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2025-01-09 15:46:28,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 412 states have (on average 1.3155339805825244) internal successors, (542), 416 states have internal predecessors, (542), 76 states have call successors, (76), 8 states have call predecessors, (76), 8 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2025-01-09 15:46:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 694 transitions. [2025-01-09 15:46:28,920 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 694 transitions. Word has length 153 [2025-01-09 15:46:28,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 15:46:28,920 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 694 transitions. [2025-01-09 15:46:28,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2025-01-09 15:46:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 694 transitions. [2025-01-09 15:46:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 15:46:28,923 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 15:46:28,923 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:28,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 15:46:28,925 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 15:46:28,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 15:46:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1459554514, now seen corresponding path program 1 times [2025-01-09 15:46:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 15:46:28,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325259047] [2025-01-09 15:46:28,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 15:46:28,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 15:46:28,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 15:46:28,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 15:46:28,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 15:46:28,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat