./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.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-a_file-25.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 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 03:13:29,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 03:13:30,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 03:13:30,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 03:13:30,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 03:13:30,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 03:13:30,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 03:13:30,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 03:13:30,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 03:13:30,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 03:13:30,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 03:13:30,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 03:13:30,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 03:13:30,044 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 03:13:30,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 03:13:30,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 03:13:30,045 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 -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2025-02-06 03:13:30,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 03:13:30,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 03:13:30,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 03:13:30,308 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 03:13:30,308 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 03:13:30,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2025-02-06 03:13:31,486 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2cd8e1e51/2bee6faea3ac42a195e3da1c340241ff/FLAG264d09095 [2025-02-06 03:13:31,717 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 03:13:31,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2025-02-06 03:13:31,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2cd8e1e51/2bee6faea3ac42a195e3da1c340241ff/FLAG264d09095 [2025-02-06 03:13:32,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2cd8e1e51/2bee6faea3ac42a195e3da1c340241ff [2025-02-06 03:13:32,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 03:13:32,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 03:13:32,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 03:13:32,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 03:13:32,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 03:13:32,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bc7117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32, skipping insertion in model container [2025-02-06 03:13:32,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 03:13:32,127 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2025-02-06 03:13:32,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 03:13:32,203 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 03:13:32,212 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2025-02-06 03:13:32,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 03:13:32,272 INFO L204 MainTranslator]: Completed translation [2025-02-06 03:13:32,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32 WrapperNode [2025-02-06 03:13:32,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 03:13:32,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 03:13:32,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 03:13:32,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 03:13:32,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,325 INFO L138 Inliner]: procedures = 29, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 555 [2025-02-06 03:13:32,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 03:13:32,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 03:13:32,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 03:13:32,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 03:13:32,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,336 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,361 INFO L175 MemorySlicer]: Split 146 memory accesses to 5 slices as follows [2, 33, 56, 35, 20]. 38 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 4, 4, 4, 2]. The 19 writes are split as follows [0, 6, 6, 5, 2]. [2025-02-06 03:13:32,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,386 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 03:13:32,400 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 03:13:32,400 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 03:13:32,400 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 03:13:32,401 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (1/1) ... [2025-02-06 03:13:32,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 03:13:32,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:13:32,428 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 03:13:32,433 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 03:13:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-06 03:13:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 03:13:32,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 03:13:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 03:13:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 03:13:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 03:13:32,537 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 03:13:32,538 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 03:13:32,912 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L101: havoc property_#t~mem91#1;havoc property_#t~ite107#1;havoc property_#t~mem92#1;havoc property_#t~mem93#1;havoc property_#t~ite104#1;havoc property_#t~mem103#1;havoc property_#t~mem96#1;havoc property_#t~mem94#1;havoc property_#t~mem95#1;havoc property_#t~ite100#1;havoc property_#t~mem97#1;havoc property_#t~mem98#1;havoc property_#t~mem99#1;havoc property_#t~mem101#1;havoc property_#t~mem102#1;havoc property_#t~mem106#1;havoc property_#t~mem105#1;havoc property_#t~mem108#1;havoc property_#t~mem109#1;havoc property_#t~ite120#1;havoc property_#t~mem113#1;havoc property_#t~mem110#1;havoc property_#t~ite112#1;havoc property_#t~mem111#1;havoc property_#t~mem119#1;havoc property_#t~mem114#1;havoc property_#t~mem115#1;havoc property_#t~ite118#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~short121#1;havoc property_#t~mem131#1;havoc property_#t~mem122#1;havoc property_#t~ite124#1;havoc property_#t~mem123#1;havoc property_#t~mem125#1;havoc property_#t~ite130#1;havoc property_#t~mem126#1;havoc property_#t~ite128#1;havoc property_#t~mem127#1;havoc property_#t~mem129#1;havoc property_#t~ite139#1;havoc property_#t~mem133#1;havoc property_#t~mem132#1;havoc property_#t~mem134#1;havoc property_#t~mem135#1;havoc property_#t~ite138#1;havoc property_#t~mem137#1;havoc property_#t~mem136#1;havoc property_#t~short140#1;havoc property_#t~mem141#1;havoc property_#t~mem142#1;havoc property_#t~ite155#1;havoc property_#t~mem143#1;havoc property_#t~mem144#1;havoc property_#t~short145#1;havoc property_#t~ite152#1;havoc property_#t~mem149#1;havoc property_#t~mem146#1;havoc property_#t~mem147#1;havoc property_#t~short148#1;havoc property_#t~mem151#1;havoc property_#t~mem150#1;havoc property_#t~mem154#1;havoc property_#t~mem153#1;havoc property_#t~short156#1; [2025-02-06 03:13:32,970 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-02-06 03:13:32,970 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 03:13:32,987 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 03:13:32,987 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 03:13:32,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:13:32 BoogieIcfgContainer [2025-02-06 03:13:32,987 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 03:13:32,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 03:13:32,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 03:13:32,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 03:13:32,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:13:32" (1/3) ... [2025-02-06 03:13:32,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182e773a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:13:32, skipping insertion in model container [2025-02-06 03:13:32,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:13:32" (2/3) ... [2025-02-06 03:13:32,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182e773a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:13:32, skipping insertion in model container [2025-02-06 03:13:32,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:13:32" (3/3) ... [2025-02-06 03:13:32,997 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2025-02-06 03:13:33,015 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 03:13:33,016 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-25.i that has 2 procedures, 123 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 03:13:33,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 03:13:33,067 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;@8729021, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 03:13:33,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 03:13:33,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 03:13:33,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 03:13:33,078 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:33,078 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:33,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:33,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:33,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1236225805, now seen corresponding path program 1 times [2025-02-06 03:13:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:33,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399685182] [2025-02-06 03:13:33,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:33,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:33,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 03:13:33,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 03:13:33,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:33,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-02-06 03:13:33,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:33,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399685182] [2025-02-06 03:13:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399685182] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:13:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149104491] [2025-02-06 03:13:33,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:33,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:13:33,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:13:33,297 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 03:13:33,303 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 03:13:33,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 03:13:33,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 03:13:33,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:33,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:33,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 03:13:33,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:13:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2025-02-06 03:13:33,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 03:13:33,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149104491] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:33,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 03:13:33,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 03:13:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884190976] [2025-02-06 03:13:33,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:33,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 03:13:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:33,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 03:13:33,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 03:13:33,586 INFO L87 Difference]: Start difference. First operand has 123 states, 102 states have (on average 1.4215686274509804) internal successors, (145), 103 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 03:13:33,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:33,605 INFO L93 Difference]: Finished difference Result 240 states and 375 transitions. [2025-02-06 03:13:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 03:13:33,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2025-02-06 03:13:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:33,611 INFO L225 Difference]: With dead ends: 240 [2025-02-06 03:13:33,611 INFO L226 Difference]: Without dead ends: 120 [2025-02-06 03:13:33,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 03:13:33,615 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:33,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 03:13:33,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-02-06 03:13:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-02-06 03:13:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 03:13:33,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2025-02-06 03:13:33,643 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2025-02-06 03:13:33,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:33,643 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2025-02-06 03:13:33,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 03:13:33,644 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2025-02-06 03:13:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 03:13:33,646 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:33,646 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:33,653 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 03:13:33,846 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 03:13:33,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:33,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:33,848 INFO L85 PathProgramCache]: Analyzing trace with hash 763660477, now seen corresponding path program 1 times [2025-02-06 03:13:33,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:33,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570572803] [2025-02-06 03:13:33,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:33,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:33,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-06 03:13:33,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-06 03:13:33,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:33,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 03:13:35,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:35,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570572803] [2025-02-06 03:13:35,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570572803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:35,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:13:35,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 03:13:35,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676978383] [2025-02-06 03:13:35,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:35,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 03:13:35,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:35,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 03:13:35,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 03:13:35,484 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 03:13:35,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:35,829 INFO L93 Difference]: Finished difference Result 355 states and 519 transitions. [2025-02-06 03:13:35,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 03:13:35,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2025-02-06 03:13:35,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:35,832 INFO L225 Difference]: With dead ends: 355 [2025-02-06 03:13:35,832 INFO L226 Difference]: Without dead ends: 238 [2025-02-06 03:13:35,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-02-06 03:13:35,833 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 227 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:35,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1303 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 03:13:35,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-02-06 03:13:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 203. [2025-02-06 03:13:35,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 174 states have (on average 1.4080459770114941) internal successors, (245), 175 states have internal predecessors, (245), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2025-02-06 03:13:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 297 transitions. [2025-02-06 03:13:35,858 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 297 transitions. Word has length 144 [2025-02-06 03:13:35,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:35,860 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 297 transitions. [2025-02-06 03:13:35,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-06 03:13:35,860 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 297 transitions. [2025-02-06 03:13:35,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-02-06 03:13:35,863 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:35,863 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:35,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 03:13:35,863 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:35,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1613598771, now seen corresponding path program 1 times [2025-02-06 03:13:35,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:35,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362881820] [2025-02-06 03:13:35,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:35,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:35,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-06 03:13:35,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-06 03:13:35,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:35,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 03:13:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362881820] [2025-02-06 03:13:36,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362881820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:36,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:13:36,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 03:13:36,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830346783] [2025-02-06 03:13:36,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:36,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 03:13:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:36,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 03:13:36,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 03:13:36,146 INFO L87 Difference]: Start difference. First operand 203 states and 297 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:36,332 INFO L93 Difference]: Finished difference Result 467 states and 680 transitions. [2025-02-06 03:13:36,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 03:13:36,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2025-02-06 03:13:36,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:36,337 INFO L225 Difference]: With dead ends: 467 [2025-02-06 03:13:36,337 INFO L226 Difference]: Without dead ends: 267 [2025-02-06 03:13:36,338 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 03:13:36,339 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 155 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:36,340 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 772 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 03:13:36,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2025-02-06 03:13:36,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 258. [2025-02-06 03:13:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 211 states have internal predecessors, (285), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 03:13:36,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 373 transitions. [2025-02-06 03:13:36,372 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 373 transitions. Word has length 145 [2025-02-06 03:13:36,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:36,373 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 373 transitions. [2025-02-06 03:13:36,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 373 transitions. [2025-02-06 03:13:36,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-02-06 03:13:36,375 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:36,375 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:36,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 03:13:36,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:36,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:36,377 INFO L85 PathProgramCache]: Analyzing trace with hash 815897495, now seen corresponding path program 1 times [2025-02-06 03:13:36,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:36,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896305135] [2025-02-06 03:13:36,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:36,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:36,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-06 03:13:36,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-06 03:13:36,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:36,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-02-06 03:13:36,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:36,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896305135] [2025-02-06 03:13:36,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896305135] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:13:36,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91917449] [2025-02-06 03:13:36,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:36,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:13:36,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:13:36,545 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 03:13:36,547 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 03:13:36,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-06 03:13:36,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-06 03:13:36,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:36,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:36,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 03:13:36,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:13:36,763 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 03:13:36,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 03:13:36,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91917449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:36,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 03:13:36,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2025-02-06 03:13:36,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108862026] [2025-02-06 03:13:36,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:36,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 03:13:36,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:36,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 03:13:36,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 03:13:36,765 INFO L87 Difference]: Start difference. First operand 258 states and 373 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:36,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:36,810 INFO L93 Difference]: Finished difference Result 488 states and 707 transitions. [2025-02-06 03:13:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 03:13:36,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2025-02-06 03:13:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:36,815 INFO L225 Difference]: With dead ends: 488 [2025-02-06 03:13:36,815 INFO L226 Difference]: Without dead ends: 264 [2025-02-06 03:13:36,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 03:13:36,816 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:36,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 03:13:36,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2025-02-06 03:13:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2025-02-06 03:13:36,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 213 states have (on average 1.3568075117370892) internal successors, (289), 215 states have internal predecessors, (289), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 03:13:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 377 transitions. [2025-02-06 03:13:36,833 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 377 transitions. Word has length 146 [2025-02-06 03:13:36,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:36,833 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 377 transitions. [2025-02-06 03:13:36,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 377 transitions. [2025-02-06 03:13:36,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-06 03:13:36,834 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:36,834 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:36,842 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 03:13:37,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:13:37,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:37,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1414917031, now seen corresponding path program 1 times [2025-02-06 03:13:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897640471] [2025-02-06 03:13:37,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:37,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:37,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 03:13:37,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 03:13:37,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:37,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 03:13:37,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:37,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897640471] [2025-02-06 03:13:37,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897640471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:37,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:13:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 03:13:37,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858062931] [2025-02-06 03:13:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:37,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 03:13:37,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:37,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 03:13:37,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 03:13:37,230 INFO L87 Difference]: Start difference. First operand 262 states and 377 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:37,395 INFO L93 Difference]: Finished difference Result 492 states and 709 transitions. [2025-02-06 03:13:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 03:13:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2025-02-06 03:13:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:37,397 INFO L225 Difference]: With dead ends: 492 [2025-02-06 03:13:37,397 INFO L226 Difference]: Without dead ends: 264 [2025-02-06 03:13:37,398 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 03:13:37,398 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 138 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:37,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 809 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 03:13:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2025-02-06 03:13:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 255. [2025-02-06 03:13:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 208 states have internal predecessors, (278), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2025-02-06 03:13:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 366 transitions. [2025-02-06 03:13:37,415 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 366 transitions. Word has length 148 [2025-02-06 03:13:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:37,415 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 366 transitions. [2025-02-06 03:13:37,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 366 transitions. [2025-02-06 03:13:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-06 03:13:37,417 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:37,417 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:37,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 03:13:37,417 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:37,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2014781223, now seen corresponding path program 1 times [2025-02-06 03:13:37,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:37,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898863899] [2025-02-06 03:13:37,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:37,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 03:13:37,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 03:13:37,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:37,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-02-06 03:13:37,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898863899] [2025-02-06 03:13:37,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898863899] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 03:13:37,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083793806] [2025-02-06 03:13:37,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:37,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:13:37,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 03:13:37,960 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 03:13:37,964 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 03:13:38,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-06 03:13:38,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-06 03:13:38,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:38,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:38,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 03:13:38,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 03:13:38,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2025-02-06 03:13:38,471 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 31 treesize of output 24 [2025-02-06 03:13:38,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 03:13:38,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 14 [2025-02-06 03:13:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 141 proven. 45 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2025-02-06 03:13:38,510 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 03:13:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2025-02-06 03:13:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083793806] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 03:13:38,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 03:13:38,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 13 [2025-02-06 03:13:38,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86176220] [2025-02-06 03:13:38,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 03:13:38,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 03:13:38,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:38,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 03:13:38,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-06 03:13:38,749 INFO L87 Difference]: Start difference. First operand 255 states and 366 transitions. Second operand has 13 states, 10 states have (on average 7.4) internal successors, (74), 13 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) [2025-02-06 03:13:39,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:39,259 INFO L93 Difference]: Finished difference Result 634 states and 892 transitions. [2025-02-06 03:13:39,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-06 03:13:39,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 7.4) internal successors, (74), 13 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) Word has length 148 [2025-02-06 03:13:39,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:39,262 INFO L225 Difference]: With dead ends: 634 [2025-02-06 03:13:39,262 INFO L226 Difference]: Without dead ends: 413 [2025-02-06 03:13:39,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 290 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2025-02-06 03:13:39,263 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 450 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:39,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 877 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 03:13:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2025-02-06 03:13:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 390. [2025-02-06 03:13:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 316 states have (on average 1.3354430379746836) internal successors, (422), 319 states have internal predecessors, (422), 62 states have call successors, (62), 11 states have call predecessors, (62), 11 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2025-02-06 03:13:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 546 transitions. [2025-02-06 03:13:39,312 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 546 transitions. Word has length 148 [2025-02-06 03:13:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:39,314 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 546 transitions. [2025-02-06 03:13:39,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 7.4) internal successors, (74), 13 states have internal predecessors, (74), 5 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (35), 2 states have call predecessors, (35), 5 states have call successors, (35) [2025-02-06 03:13:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 546 transitions. [2025-02-06 03:13:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-06 03:13:39,315 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:39,315 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:39,322 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 03:13:39,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 03:13:39,516 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:39,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:39,516 INFO L85 PathProgramCache]: Analyzing trace with hash -410127511, now seen corresponding path program 1 times [2025-02-06 03:13:39,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:39,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805398164] [2025-02-06 03:13:39,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:39,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:39,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-06 03:13:39,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-06 03:13:39,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:39,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 03:13:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2025-02-06 03:13:39,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 03:13:39,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805398164] [2025-02-06 03:13:39,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805398164] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 03:13:39,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 03:13:39,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 03:13:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969745638] [2025-02-06 03:13:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 03:13:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 03:13:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 03:13:39,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 03:13:39,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 03:13:39,791 INFO L87 Difference]: Start difference. First operand 390 states and 546 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 03:13:39,982 INFO L93 Difference]: Finished difference Result 940 states and 1323 transitions. [2025-02-06 03:13:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 03:13:39,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2025-02-06 03:13:39,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 03:13:39,986 INFO L225 Difference]: With dead ends: 940 [2025-02-06 03:13:39,986 INFO L226 Difference]: Without dead ends: 592 [2025-02-06 03:13:39,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-06 03:13:39,988 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 145 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 03:13:39,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 998 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 03:13:39,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2025-02-06 03:13:40,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 588. [2025-02-06 03:13:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 481 states have (on average 1.340956340956341) internal successors, (645), 486 states have internal predecessors, (645), 90 states have call successors, (90), 16 states have call predecessors, (90), 16 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2025-02-06 03:13:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 825 transitions. [2025-02-06 03:13:40,046 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 825 transitions. Word has length 149 [2025-02-06 03:13:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 03:13:40,046 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 825 transitions. [2025-02-06 03:13:40,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2025-02-06 03:13:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 825 transitions. [2025-02-06 03:13:40,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-06 03:13:40,047 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 03:13:40,048 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:40,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 03:13:40,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 03:13:40,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 03:13:40,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2138643605, now seen corresponding path program 1 times [2025-02-06 03:13:40,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 03:13:40,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274375553] [2025-02-06 03:13:40,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 03:13:40,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 03:13:40,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-06 03:13:40,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-06 03:13:40,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 03:13:40,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat