./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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-ap_file-19.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 47ed50ee23bce943b6d8d1ef42e1233b8fd974d0271bfb8e1001a06043bdfcc4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 03:24:25,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 03:24:25,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 03:24:25,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 03:24:25,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 03:24:25,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 03:24:25,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 03:24:25,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 03:24:25,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 03:24:25,304 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 03:24:25,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 03:24:25,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 03:24:25,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 03:24:25,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 03:24:25,305 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 03:24:25,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 03:24:25,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 03:24:25,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 03:24:25,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 03:24:25,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 03:24:25,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 03:24:25,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 03:24:25,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 03:24:25,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 03:24:25,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 03:24:25,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 03:24:25,308 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 -> 47ed50ee23bce943b6d8d1ef42e1233b8fd974d0271bfb8e1001a06043bdfcc4 [2025-02-06 03:24:25,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 03:24:25,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 03:24:25,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 03:24:25,535 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 03:24:25,535 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 03:24:25,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-19.i [2025-02-06 03:24:26,678 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83ce9a81e/884d99f08d364d19821bdb40412fe02b/FLAG6f6ca9214 [2025-02-06 03:24:26,905 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 03:24:26,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-19.i [2025-02-06 03:24:26,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83ce9a81e/884d99f08d364d19821bdb40412fe02b/FLAG6f6ca9214 [2025-02-06 03:24:27,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/83ce9a81e/884d99f08d364d19821bdb40412fe02b [2025-02-06 03:24:27,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 03:24:27,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 03:24:27,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 03:24:27,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 03:24:27,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 03:24:27,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fdf7f06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27, skipping insertion in model container [2025-02-06 03:24:27,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 03:24:27,374 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-ap_file-19.i[917,930] [2025-02-06 03:24:27,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 03:24:27,432 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 03:24:27,438 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-ap_file-19.i[917,930] [2025-02-06 03:24:27,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 03:24:27,473 INFO L204 MainTranslator]: Completed translation [2025-02-06 03:24:27,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27 WrapperNode [2025-02-06 03:24:27,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 03:24:27,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 03:24:27,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 03:24:27,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 03:24:27,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,524 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 477 [2025-02-06 03:24:27,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 03:24:27,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 03:24:27,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 03:24:27,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 03:24:27,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,558 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 8, 43, 27, 26, 18]. 35 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 3, 4, 2, 2]. The 15 writes are split as follows [0, 1, 4, 6, 2, 2]. [2025-02-06 03:24:27,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,567 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 03:24:27,574 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 03:24:27,574 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 03:24:27,575 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 03:24:27,575 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (1/1) ... [2025-02-06 03:24:27,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 03:24:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:27,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 03:24:27,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 03:24:27,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 03:24:27,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 03:24:27,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 03:24:27,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 03:24:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 03:24:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 03:24:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 03:24:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 03:24:27,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 03:24:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 03:24:27,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 03:24:27,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 03:24:27,733 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 03:24:27,736 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 03:24:28,121 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L111: havoc property_#t~mem70#1;havoc property_#t~mem71#1;havoc property_#t~mem72#1;havoc property_#t~mem73#1;havoc property_#t~bitwise74#1;havoc property_#t~mem75#1;havoc property_#t~ite92#1;havoc property_#t~mem87#1;havoc property_#t~mem80#1;havoc property_#t~mem76#1;havoc property_#t~ite79#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~ite86#1;havoc property_#t~mem81#1;havoc property_#t~mem82#1;havoc property_#t~ite85#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~mem88#1;havoc property_#t~ite91#1;havoc property_#t~mem90#1;havoc property_#t~mem89#1;havoc property_#t~mem93#1;havoc property_#t~mem94#1;havoc property_#t~ite109#1;havoc property_#t~mem95#1;havoc property_#t~ite99#1;havoc property_#t~mem98#1;havoc property_#t~mem96#1;havoc property_#t~mem97#1;havoc property_#t~mem104#1;havoc property_#t~mem100#1;havoc property_#t~ite103#1;havoc property_#t~mem101#1;havoc property_#t~mem102#1;havoc property_#t~mem105#1;havoc property_#t~ite108#1;havoc property_#t~mem107#1;havoc property_#t~mem106#1;havoc property_#t~short110#1;havoc property_#t~mem111#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~mem114#1;havoc property_#t~mem115#1;havoc property_#t~ite122#1;havoc property_#t~mem116#1;havoc property_#t~ite119#1;havoc property_#t~mem118#1;havoc property_#t~mem117#1;havoc property_#t~mem121#1;havoc property_#t~mem120#1;havoc property_#t~short123#1;havoc property_#t~mem125#1;havoc property_#t~mem124#1;havoc property_#t~short126#1; [2025-02-06 03:24:28,153 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2025-02-06 03:24:28,154 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 03:24:28,165 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 03:24:28,166 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 03:24:28,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:24:28 BoogieIcfgContainer [2025-02-06 03:24:28,166 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 03:24:28,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 03:24:28,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 03:24:28,171 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 03:24:28,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:24:27" (1/3) ... [2025-02-06 03:24:28,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3a0c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:24:28, skipping insertion in model container [2025-02-06 03:24:28,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:24:27" (2/3) ... [2025-02-06 03:24:28,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3a0c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:24:28, skipping insertion in model container [2025-02-06 03:24:28,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:24:28" (3/3) ... [2025-02-06 03:24:28,173 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-19.i [2025-02-06 03:24:28,185 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 03:24:28,186 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-19.i that has 2 procedures, 101 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 03:24:28,236 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 03:24:28,247 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;@746221eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 03:24:28,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 03:24:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 81 states have (on average 1.382716049382716) internal successors, (112), 82 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 03:24:28,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 03:24:28,261 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:28,262 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:28,262 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:28,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1542436912, now seen corresponding path program 1 times [2025-02-06 03:24:28,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:28,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831828600] [2025-02-06 03:24:28,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:28,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:28,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:28,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:28,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:28,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-02-06 03:24:28,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:28,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831828600] [2025-02-06 03:24:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831828600] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:28,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881510252] [2025-02-06 03:24:28,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:28,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:28,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:28,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 03:24:28,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 03:24:28,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:28,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:28,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:28,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:28,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 03:24:28,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:24:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-02-06 03:24:28,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 03:24:28,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881510252] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:28,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 03:24:28,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 03:24:28,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860207987] [2025-02-06 03:24:28,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:28,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 03:24:28,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:28,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 03:24:28,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 03:24:28,795 INFO L87 Difference]: Start difference. First operand has 101 states, 81 states have (on average 1.382716049382716) internal successors, (112), 82 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-06 03:24:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:28,822 INFO L93 Difference]: Finished difference Result 196 states and 304 transitions. [2025-02-06 03:24:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 03:24:28,824 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2025-02-06 03:24:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:28,830 INFO L225 Difference]: With dead ends: 196 [2025-02-06 03:24:28,830 INFO L226 Difference]: Without dead ends: 98 [2025-02-06 03:24:28,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 03:24:28,834 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:28,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 03:24:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-02-06 03:24:28,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2025-02-06 03:24:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 03:24:28,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2025-02-06 03:24:28,868 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 132 [2025-02-06 03:24:28,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:28,868 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2025-02-06 03:24:28,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-06 03:24:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2025-02-06 03:24:28,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 03:24:28,873 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:28,873 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:28,882 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 [2025-02-06 03:24:29,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 03:24:29,074 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:29,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:29,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1345416801, now seen corresponding path program 1 times [2025-02-06 03:24:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:29,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952303577] [2025-02-06 03:24:29,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:29,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:29,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:29,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:29,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:29,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952303577] [2025-02-06 03:24:29,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952303577] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:29,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:29,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 03:24:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117174802] [2025-02-06 03:24:29,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:29,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 03:24:29,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:29,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 03:24:29,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 03:24:29,379 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:29,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:29,424 INFO L93 Difference]: Finished difference Result 196 states and 279 transitions. [2025-02-06 03:24:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 03:24:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2025-02-06 03:24:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:29,428 INFO L225 Difference]: With dead ends: 196 [2025-02-06 03:24:29,428 INFO L226 Difference]: Without dead ends: 101 [2025-02-06 03:24:29,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 03:24:29,430 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:29,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 393 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 03:24:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-02-06 03:24:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2025-02-06 03:24:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-02-06 03:24:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 141 transitions. [2025-02-06 03:24:29,443 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 141 transitions. Word has length 132 [2025-02-06 03:24:29,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:29,444 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 141 transitions. [2025-02-06 03:24:29,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:29,444 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2025-02-06 03:24:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 03:24:29,445 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:29,445 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:29,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 03:24:29,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:29,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:29,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1346340322, now seen corresponding path program 1 times [2025-02-06 03:24:29,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:29,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039070476] [2025-02-06 03:24:29,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:29,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:29,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:29,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:29,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:29,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-02-06 03:24:31,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:31,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039070476] [2025-02-06 03:24:31,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039070476] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:31,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949856939] [2025-02-06 03:24:31,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:31,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:31,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:31,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 03:24:31,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 03:24:31,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:31,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:31,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:31,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:31,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 03:24:31,185 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:24:31,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 03:24:31,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 195 treesize of output 171 [2025-02-06 03:24:31,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 115 [2025-02-06 03:24:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-02-06 03:24:31,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 03:24:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:31,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949856939] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:31,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 03:24:31,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15, 8] total 20 [2025-02-06 03:24:31,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550086029] [2025-02-06 03:24:31,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:31,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 03:24:31,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:31,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 03:24:31,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2025-02-06 03:24:31,739 INFO L87 Difference]: Start difference. First operand 100 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:31,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:31,962 INFO L93 Difference]: Finished difference Result 250 states and 349 transitions. [2025-02-06 03:24:31,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 03:24:31,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2025-02-06 03:24:31,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:31,964 INFO L225 Difference]: With dead ends: 250 [2025-02-06 03:24:31,964 INFO L226 Difference]: Without dead ends: 153 [2025-02-06 03:24:31,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2025-02-06 03:24:31,965 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 58 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:31,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 657 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 03:24:31,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-02-06 03:24:31,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2025-02-06 03:24:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.3203125) internal successors, (169), 129 states have internal predecessors, (169), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-02-06 03:24:31,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 207 transitions. [2025-02-06 03:24:31,984 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 207 transitions. Word has length 132 [2025-02-06 03:24:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:31,984 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 207 transitions. [2025-02-06 03:24:31,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 207 transitions. [2025-02-06 03:24:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-02-06 03:24:31,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:31,989 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:31,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 03:24:32,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:32,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:32,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1595317277, now seen corresponding path program 1 times [2025-02-06 03:24:32,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:32,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446503178] [2025-02-06 03:24:32,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:32,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:32,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-02-06 03:24:32,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-02-06 03:24:32,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:32,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:32,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:32,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446503178] [2025-02-06 03:24:32,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446503178] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:32,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:32,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 03:24:32,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437566044] [2025-02-06 03:24:32,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:32,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 03:24:32,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:32,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 03:24:32,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 03:24:32,361 INFO L87 Difference]: Start difference. First operand 150 states and 207 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:32,420 INFO L93 Difference]: Finished difference Result 339 states and 467 transitions. [2025-02-06 03:24:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 03:24:32,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2025-02-06 03:24:32,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:32,422 INFO L225 Difference]: With dead ends: 339 [2025-02-06 03:24:32,422 INFO L226 Difference]: Without dead ends: 192 [2025-02-06 03:24:32,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 03:24:32,423 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 47 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:32,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 652 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 03:24:32,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2025-02-06 03:24:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 156. [2025-02-06 03:24:32,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.3208955223880596) internal successors, (177), 135 states have internal predecessors, (177), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-02-06 03:24:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 215 transitions. [2025-02-06 03:24:32,440 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 215 transitions. Word has length 132 [2025-02-06 03:24:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:32,440 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 215 transitions. [2025-02-06 03:24:32,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 215 transitions. [2025-02-06 03:24:32,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-06 03:24:32,442 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:32,442 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:32,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 03:24:32,442 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:32,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:32,442 INFO L85 PathProgramCache]: Analyzing trace with hash -294489052, now seen corresponding path program 1 times [2025-02-06 03:24:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:32,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760493867] [2025-02-06 03:24:32,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:32,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:32,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-06 03:24:32,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-06 03:24:32,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:32,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:32,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:32,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760493867] [2025-02-06 03:24:32,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760493867] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:32,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:32,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 03:24:32,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237821777] [2025-02-06 03:24:32,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:32,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 03:24:32,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:32,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 03:24:32,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 03:24:32,867 INFO L87 Difference]: Start difference. First operand 156 states and 215 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:33,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:33,166 INFO L93 Difference]: Finished difference Result 402 states and 548 transitions. [2025-02-06 03:24:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 03:24:33,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2025-02-06 03:24:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:33,168 INFO L225 Difference]: With dead ends: 402 [2025-02-06 03:24:33,168 INFO L226 Difference]: Without dead ends: 249 [2025-02-06 03:24:33,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-02-06 03:24:33,169 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 68 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:33,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 882 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 03:24:33,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-02-06 03:24:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 246. [2025-02-06 03:24:33,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 214 states have (on average 1.2990654205607477) internal successors, (278), 217 states have internal predecessors, (278), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-02-06 03:24:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 332 transitions. [2025-02-06 03:24:33,192 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 332 transitions. Word has length 133 [2025-02-06 03:24:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:33,192 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 332 transitions. [2025-02-06 03:24:33,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 332 transitions. [2025-02-06 03:24:33,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-06 03:24:33,194 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:33,194 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:33,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 03:24:33,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:33,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash 183011265, now seen corresponding path program 1 times [2025-02-06 03:24:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619796116] [2025-02-06 03:24:33,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:33,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-02-06 03:24:33,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-02-06 03:24:33,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:33,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:33,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:33,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619796116] [2025-02-06 03:24:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619796116] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:33,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:33,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 03:24:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543501821] [2025-02-06 03:24:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:33,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 03:24:33,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:33,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 03:24:33,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 03:24:33,646 INFO L87 Difference]: Start difference. First operand 246 states and 332 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:34,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:34,079 INFO L93 Difference]: Finished difference Result 699 states and 938 transitions. [2025-02-06 03:24:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 03:24:34,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2025-02-06 03:24:34,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:34,084 INFO L225 Difference]: With dead ends: 699 [2025-02-06 03:24:34,086 INFO L226 Difference]: Without dead ends: 452 [2025-02-06 03:24:34,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-02-06 03:24:34,088 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 89 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:34,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1222 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:24:34,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2025-02-06 03:24:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 285. [2025-02-06 03:24:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 253 states have (on average 1.3201581027667983) internal successors, (334), 256 states have internal predecessors, (334), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2025-02-06 03:24:34,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2025-02-06 03:24:34,124 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 134 [2025-02-06 03:24:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:34,124 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2025-02-06 03:24:34,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:34,128 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2025-02-06 03:24:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-06 03:24:34,130 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:34,130 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:34,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 03:24:34,130 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:34,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash 984570047, now seen corresponding path program 1 times [2025-02-06 03:24:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059281112] [2025-02-06 03:24:34,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:34,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-02-06 03:24:34,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-02-06 03:24:34,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:34,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:34,659 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:34,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:34,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059281112] [2025-02-06 03:24:34,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059281112] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:34,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:34,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 03:24:34,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059356945] [2025-02-06 03:24:34,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:34,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 03:24:34,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:34,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 03:24:34,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 03:24:34,662 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:34,978 INFO L93 Difference]: Finished difference Result 675 states and 915 transitions. [2025-02-06 03:24:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 03:24:34,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2025-02-06 03:24:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:34,980 INFO L225 Difference]: With dead ends: 675 [2025-02-06 03:24:34,980 INFO L226 Difference]: Without dead ends: 393 [2025-02-06 03:24:34,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 03:24:34,981 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 92 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:34,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 857 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:24:34,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2025-02-06 03:24:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 390. [2025-02-06 03:24:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 344 states have (on average 1.2994186046511629) internal successors, (447), 349 states have internal predecessors, (447), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 33 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-06 03:24:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 523 transitions. [2025-02-06 03:24:35,016 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 523 transitions. Word has length 134 [2025-02-06 03:24:35,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:35,017 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 523 transitions. [2025-02-06 03:24:35,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 523 transitions. [2025-02-06 03:24:35,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:35,018 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:35,018 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:35,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 03:24:35,018 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:35,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1997951451, now seen corresponding path program 1 times [2025-02-06 03:24:35,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:35,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961756027] [2025-02-06 03:24:35,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:35,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:35,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:35,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:35,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:35,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-02-06 03:24:35,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:35,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961756027] [2025-02-06 03:24:35,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961756027] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:35,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025730253] [2025-02-06 03:24:35,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:35,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:35,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 03:24:35,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 03:24:35,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:35,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:35,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:35,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:35,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 03:24:35,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:24:35,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 03:24:35,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 03:24:35,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 03:24:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 211 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-02-06 03:24:35,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 03:24:36,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025730253] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:36,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 03:24:36,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2025-02-06 03:24:36,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467025755] [2025-02-06 03:24:36,109 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 03:24:36,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 03:24:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:36,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 03:24:36,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-06 03:24:36,111 INFO L87 Difference]: Start difference. First operand 390 states and 523 transitions. Second operand has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2025-02-06 03:24:36,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:36,617 INFO L93 Difference]: Finished difference Result 879 states and 1165 transitions. [2025-02-06 03:24:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 03:24:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 135 [2025-02-06 03:24:36,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:36,621 INFO L225 Difference]: With dead ends: 879 [2025-02-06 03:24:36,621 INFO L226 Difference]: Without dead ends: 492 [2025-02-06 03:24:36,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2025-02-06 03:24:36,624 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 368 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:36,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 751 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:24:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2025-02-06 03:24:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 469. [2025-02-06 03:24:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 416 states have (on average 1.2908653846153846) internal successors, (537), 423 states have internal predecessors, (537), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 35 states have call predecessors, (42), 42 states have call successors, (42) [2025-02-06 03:24:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 621 transitions. [2025-02-06 03:24:36,660 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 621 transitions. Word has length 135 [2025-02-06 03:24:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:36,660 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 621 transitions. [2025-02-06 03:24:36,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.416666666666667) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2025-02-06 03:24:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 621 transitions. [2025-02-06 03:24:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:36,664 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:36,664 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:36,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 03:24:36,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:36,865 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:36,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:36,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1888191620, now seen corresponding path program 1 times [2025-02-06 03:24:36,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:36,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460636831] [2025-02-06 03:24:36,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:36,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:36,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:36,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:36,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:36,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:37,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:37,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460636831] [2025-02-06 03:24:37,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460636831] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:37,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:37,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 03:24:37,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721498837] [2025-02-06 03:24:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:37,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 03:24:37,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:37,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 03:24:37,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 03:24:37,279 INFO L87 Difference]: Start difference. First operand 469 states and 621 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-02-06 03:24:37,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:37,596 INFO L93 Difference]: Finished difference Result 956 states and 1258 transitions. [2025-02-06 03:24:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 03:24:37,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2025-02-06 03:24:37,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:37,602 INFO L225 Difference]: With dead ends: 956 [2025-02-06 03:24:37,602 INFO L226 Difference]: Without dead ends: 490 [2025-02-06 03:24:37,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2025-02-06 03:24:37,605 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 315 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:37,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 380 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 03:24:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2025-02-06 03:24:37,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 403. [2025-02-06 03:24:37,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 354 states have (on average 1.2824858757062148) internal successors, (454), 359 states have internal predecessors, (454), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 33 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-06 03:24:37,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 530 transitions. [2025-02-06 03:24:37,654 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 530 transitions. Word has length 135 [2025-02-06 03:24:37,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:37,654 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 530 transitions. [2025-02-06 03:24:37,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-02-06 03:24:37,654 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 530 transitions. [2025-02-06 03:24:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:37,656 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:37,657 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:37,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 03:24:37,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:37,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1594788613, now seen corresponding path program 1 times [2025-02-06 03:24:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:37,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077261655] [2025-02-06 03:24:37,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:37,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:37,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:37,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:37,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:37,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:38,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:38,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077261655] [2025-02-06 03:24:38,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077261655] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:38,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:38,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 03:24:38,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283934639] [2025-02-06 03:24:38,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:38,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 03:24:38,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:38,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 03:24:38,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-06 03:24:38,363 INFO L87 Difference]: Start difference. First operand 403 states and 530 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:38,834 INFO L93 Difference]: Finished difference Result 913 states and 1197 transitions. [2025-02-06 03:24:38,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 03:24:38,835 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2025-02-06 03:24:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:38,838 INFO L225 Difference]: With dead ends: 913 [2025-02-06 03:24:38,838 INFO L226 Difference]: Without dead ends: 513 [2025-02-06 03:24:38,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2025-02-06 03:24:38,840 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 64 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:38,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1462 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:24:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-02-06 03:24:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 423. [2025-02-06 03:24:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 374 states have (on average 1.2807486631016043) internal successors, (479), 379 states have internal predecessors, (479), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 33 states have call predecessors, (38), 38 states have call successors, (38) [2025-02-06 03:24:38,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 555 transitions. [2025-02-06 03:24:38,888 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 555 transitions. Word has length 135 [2025-02-06 03:24:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:38,889 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 555 transitions. [2025-02-06 03:24:38,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:38,889 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 555 transitions. [2025-02-06 03:24:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:38,890 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:38,890 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:38,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 03:24:38,890 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:38,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash -420492590, now seen corresponding path program 1 times [2025-02-06 03:24:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:38,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642504105] [2025-02-06 03:24:38,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:38,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:38,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:38,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:38,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:39,487 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-02-06 03:24:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:39,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642504105] [2025-02-06 03:24:39,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642504105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:24:39,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:24:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 03:24:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798561917] [2025-02-06 03:24:39,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:24:39,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 03:24:39,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:39,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 03:24:39,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 03:24:39,489 INFO L87 Difference]: Start difference. First operand 423 states and 555 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:40,456 INFO L93 Difference]: Finished difference Result 1408 states and 1823 transitions. [2025-02-06 03:24:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 03:24:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2025-02-06 03:24:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:40,462 INFO L225 Difference]: With dead ends: 1408 [2025-02-06 03:24:40,462 INFO L226 Difference]: Without dead ends: 988 [2025-02-06 03:24:40,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2025-02-06 03:24:40,467 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 329 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:40,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 1103 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 03:24:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2025-02-06 03:24:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 703. [2025-02-06 03:24:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 623 states have (on average 1.274478330658106) internal successors, (794), 631 states have internal predecessors, (794), 59 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 51 states have call predecessors, (59), 59 states have call successors, (59) [2025-02-06 03:24:40,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 912 transitions. [2025-02-06 03:24:40,524 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 912 transitions. Word has length 135 [2025-02-06 03:24:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:40,526 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 912 transitions. [2025-02-06 03:24:40,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-02-06 03:24:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 912 transitions. [2025-02-06 03:24:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:40,527 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:40,527 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:40,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 03:24:40,527 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:40,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1474199463, now seen corresponding path program 1 times [2025-02-06 03:24:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:40,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694506748] [2025-02-06 03:24:40,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:40,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:40,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:40,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:40,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:40,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-02-06 03:24:41,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:24:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694506748] [2025-02-06 03:24:41,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694506748] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:41,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433656035] [2025-02-06 03:24:41,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:41,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:41,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:41,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 03:24:41,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 03:24:41,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:41,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:41,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:41,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:41,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 03:24:41,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:24:41,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 03:24:41,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-06 03:24:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:41,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 03:24:41,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-02-06 03:24:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 211 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-02-06 03:24:41,935 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 03:24:42,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433656035] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:24:42,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 03:24:42,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2025-02-06 03:24:42,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228331085] [2025-02-06 03:24:42,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 03:24:42,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 03:24:42,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:24:42,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 03:24:42,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2025-02-06 03:24:42,031 INFO L87 Difference]: Start difference. First operand 703 states and 912 transitions. Second operand has 17 states, 15 states have (on average 6.666666666666667) internal successors, (100), 17 states have internal predecessors, (100), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2025-02-06 03:24:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:24:42,614 INFO L93 Difference]: Finished difference Result 1423 states and 1841 transitions. [2025-02-06 03:24:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 03:24:42,615 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.666666666666667) internal successors, (100), 17 states have internal predecessors, (100), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 135 [2025-02-06 03:24:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:24:42,619 INFO L225 Difference]: With dead ends: 1423 [2025-02-06 03:24:42,619 INFO L226 Difference]: Without dead ends: 723 [2025-02-06 03:24:42,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2025-02-06 03:24:42,621 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 523 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:24:42,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 513 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:24:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2025-02-06 03:24:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 701. [2025-02-06 03:24:42,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 621 states have (on average 1.2673107890499196) internal successors, (787), 629 states have internal predecessors, (787), 59 states have call successors, (59), 20 states have call predecessors, (59), 20 states have return successors, (59), 51 states have call predecessors, (59), 59 states have call successors, (59) [2025-02-06 03:24:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 905 transitions. [2025-02-06 03:24:42,672 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 905 transitions. Word has length 135 [2025-02-06 03:24:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:24:42,672 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 905 transitions. [2025-02-06 03:24:42,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.666666666666667) internal successors, (100), 17 states have internal predecessors, (100), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2025-02-06 03:24:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 905 transitions. [2025-02-06 03:24:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 03:24:42,675 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:24:42,675 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 03:24:42,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 03:24:42,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-06 03:24:42,875 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:24:42,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:24:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1767602470, now seen corresponding path program 1 times [2025-02-06 03:24:42,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:24:42,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574292736] [2025-02-06 03:24:42,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:42,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:24:42,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:42,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:42,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:42,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 03:24:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [415637183] [2025-02-06 03:24:42,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:24:42,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:24:42,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:24:42,971 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) [2025-02-06 03:24:42,973 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 [2025-02-06 03:24:43,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-06 03:24:43,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-06 03:24:43,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:24:43,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:24:43,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 147 conjuncts are in the unsatisfiable core [2025-02-06 03:24:43,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:24:44,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 03:24:45,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2025-02-06 03:24:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:46,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2025-02-06 03:24:48,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 03:24:49,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2025-02-06 03:24:50,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 03:24:52,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:52,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 33 [2025-02-06 03:24:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:52,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 03:24:52,402 INFO L349 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2025-02-06 03:24:52,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 74 [2025-02-06 03:24:56,132 INFO L349 Elim1Store]: treesize reduction 156, result has 63.0 percent of original size [2025-02-06 03:24:56,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 201 treesize of output 390