./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 801154599e4f83be702d4edf57ef1684d9181253862a9d822c36129a43e2867e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 05:48:23,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 05:48:23,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 05:48:23,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 05:48:23,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 05:48:23,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 05:48:23,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 05:48:23,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 05:48:23,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 05:48:23,854 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 05:48:23,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 05:48:23,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 05:48:23,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 05:48:23,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 05:48:23,856 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 05:48:23,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 05:48:23,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 05:48:23,856 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 05:48:23,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 05:48:23,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 05:48:23,858 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 05:48:23,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 05:48:23,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 05:48:23,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 05:48:23,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 05:48:23,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 05:48:23,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 05:48:23,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 05:48:23,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 05:48:23,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 05:48:23,860 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/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 -> 801154599e4f83be702d4edf57ef1684d9181253862a9d822c36129a43e2867e [2025-03-17 05:48:24,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 05:48:24,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 05:48:24,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 05:48:24,156 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 05:48:24,156 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 05:48:24,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2025-03-17 05:48:25,384 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa362e705/068745ae78b840d39e851d82b767e3be/FLAG60db2e29f [2025-03-17 05:48:25,698 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 05:48:25,699 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2025-03-17 05:48:25,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa362e705/068745ae78b840d39e851d82b767e3be/FLAG60db2e29f [2025-03-17 05:48:25,721 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa362e705/068745ae78b840d39e851d82b767e3be [2025-03-17 05:48:25,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 05:48:25,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 05:48:25,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 05:48:25,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 05:48:25,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 05:48:25,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:25,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678771b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25, skipping insertion in model container [2025-03-17 05:48:25,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:25,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 05:48:25,859 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i[915,928] [2025-03-17 05:48:25,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 05:48:25,913 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 05:48:25,921 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i[915,928] [2025-03-17 05:48:25,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 05:48:25,958 INFO L204 MainTranslator]: Completed translation [2025-03-17 05:48:25,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25 WrapperNode [2025-03-17 05:48:25,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 05:48:25,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 05:48:25,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 05:48:25,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 05:48:25,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:25,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,026 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 552 [2025-03-17 05:48:26,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 05:48:26,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 05:48:26,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 05:48:26,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 05:48:26,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,071 INFO L175 MemorySlicer]: Split 135 memory accesses to 17 slices as follows [2, 5, 9, 13, 8, 6, 8, 8, 8, 8, 14, 4, 6, 6, 14, 8, 8]. 10 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-03-17 05:48:26,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,091 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 05:48:26,104 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 05:48:26,104 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 05:48:26,104 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 05:48:26,105 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (1/1) ... [2025-03-17 05:48:26,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 05:48:26,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 05:48:26,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 05:48:26,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-17 05:48:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-17 05:48:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-17 05:48:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-17 05:48:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-17 05:48:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-17 05:48:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-17 05:48:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2025-03-17 05:48:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2025-03-17 05:48:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2025-03-17 05:48:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-17 05:48:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-17 05:48:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-17 05:48:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-17 05:48:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 05:48:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-17 05:48:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-17 05:48:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-17 05:48:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-17 05:48:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-17 05:48:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-17 05:48:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 05:48:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 05:48:26,350 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 05:48:26,351 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 05:48:26,710 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L122: havoc property_#t~mem94#1;havoc property_#t~mem95#1;havoc property_#t~ite98#1;havoc property_#t~mem96#1;havoc property_#t~mem97#1;havoc property_#t~mem99#1;havoc property_#t~mem100#1;havoc property_#t~ite106#1;havoc property_#t~mem101#1;havoc property_#t~mem102#1;havoc property_#t~ite105#1;havoc property_#t~mem103#1;havoc property_#t~mem104#1;havoc property_#t~mem107#1;havoc property_#t~ite118#1;havoc property_#t~mem108#1;havoc property_#t~mem109#1;havoc property_#t~mem110#1;havoc property_#t~mem111#1;havoc property_#t~ite115#1;havoc property_#t~mem114#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~mem117#1;havoc property_#t~mem116#1;havoc property_#t~short119#1;havoc property_#t~ite124#1;havoc property_#t~mem123#1;havoc property_#t~mem120#1;havoc property_#t~mem121#1;havoc property_#t~short122#1;havoc property_#t~short125#1;havoc property_#t~mem126#1;havoc property_#t~mem127#1;havoc property_#t~ite135#1;havoc property_#t~mem134#1;havoc property_#t~mem128#1;havoc property_#t~mem129#1;havoc property_#t~ite132#1;havoc property_#t~mem130#1;havoc property_#t~mem131#1;havoc property_#t~mem133#1;havoc property_#t~short136#1;havoc property_#t~mem142#1;havoc property_#t~mem137#1;havoc property_#t~mem138#1;havoc property_#t~ite141#1;havoc property_#t~mem139#1;havoc property_#t~mem140#1;havoc property_#t~short143#1; [2025-03-17 05:48:26,754 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2025-03-17 05:48:26,755 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 05:48:26,764 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 05:48:26,764 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 05:48:26,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 05:48:26 BoogieIcfgContainer [2025-03-17 05:48:26,765 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 05:48:26,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 05:48:26,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 05:48:26,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 05:48:26,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 05:48:25" (1/3) ... [2025-03-17 05:48:26,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a55d155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 05:48:26, skipping insertion in model container [2025-03-17 05:48:26,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 05:48:25" (2/3) ... [2025-03-17 05:48:26,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a55d155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 05:48:26, skipping insertion in model container [2025-03-17 05:48:26,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 05:48:26" (3/3) ... [2025-03-17 05:48:26,774 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-6.i [2025-03-17 05:48:26,784 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 05:48:26,785 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-6.i that has 2 procedures, 116 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 05:48:26,836 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 05:48:26,847 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;@713ed3bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 05:48:26,847 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 05:48:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 94 states have (on average 1.425531914893617) internal successors, (134), 95 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 05:48:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 05:48:26,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:26,861 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:26,861 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:26,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:26,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1351523069, now seen corresponding path program 1 times [2025-03-17 05:48:26,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:26,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745930730] [2025-03-17 05:48:26,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:26,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:26,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 05:48:27,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 05:48:27,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:27,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-17 05:48:27,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 05:48:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745930730] [2025-03-17 05:48:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745930730] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 05:48:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516366548] [2025-03-17 05:48:27,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:27,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 05:48:27,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 05:48:27,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 05:48:27,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 05:48:27,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 05:48:27,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 05:48:27,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:27,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:27,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 05:48:27,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 05:48:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-17 05:48:27,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 05:48:27,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516366548] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 05:48:27,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 05:48:27,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 05:48:27,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453056521] [2025-03-17 05:48:27,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 05:48:27,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 05:48:27,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 05:48:27,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 05:48:27,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 05:48:27,558 INFO L87 Difference]: Start difference. First operand has 116 states, 94 states have (on average 1.425531914893617) internal successors, (134), 95 states have internal predecessors, (134), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-17 05:48:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 05:48:27,593 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2025-03-17 05:48:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 05:48:27,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2025-03-17 05:48:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 05:48:27,604 INFO L225 Difference]: With dead ends: 229 [2025-03-17 05:48:27,604 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 05:48:27,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 05:48:27,614 INFO L435 NwaCegarLoop]: 168 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, 168 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 [2025-03-17 05:48:27,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 05:48:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 05:48:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-17 05:48:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3978494623655915) internal successors, (130), 93 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 05:48:27,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 168 transitions. [2025-03-17 05:48:27,654 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 168 transitions. Word has length 154 [2025-03-17 05:48:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 05:48:27,654 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 168 transitions. [2025-03-17 05:48:27,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-17 05:48:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 168 transitions. [2025-03-17 05:48:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 05:48:27,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:27,657 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:27,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 05:48:27,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 05:48:27,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:27,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:27,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1151756622, now seen corresponding path program 1 times [2025-03-17 05:48:27,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:27,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840089822] [2025-03-17 05:48:27,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:27,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:27,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 05:48:27,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 05:48:27,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:27,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-17 05:48:28,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 05:48:28,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840089822] [2025-03-17 05:48:28,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840089822] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 05:48:28,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 05:48:28,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 05:48:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742067342] [2025-03-17 05:48:28,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 05:48:28,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 05:48:28,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 05:48:28,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 05:48:28,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 05:48:28,295 INFO L87 Difference]: Start difference. First operand 114 states and 168 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:28,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 05:48:28,325 INFO L93 Difference]: Finished difference Result 227 states and 335 transitions. [2025-03-17 05:48:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 05:48:28,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2025-03-17 05:48:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 05:48:28,327 INFO L225 Difference]: With dead ends: 227 [2025-03-17 05:48:28,327 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 05:48:28,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 05:48:28,328 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 05:48:28,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 05:48:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 05:48:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2025-03-17 05:48:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 93 states have internal predecessors, (129), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 05:48:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 167 transitions. [2025-03-17 05:48:28,346 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 167 transitions. Word has length 154 [2025-03-17 05:48:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 05:48:28,347 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 167 transitions. [2025-03-17 05:48:28,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 167 transitions. [2025-03-17 05:48:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-17 05:48:28,348 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:28,349 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:28,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 05:48:28,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:28,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:28,349 INFO L85 PathProgramCache]: Analyzing trace with hash 307284751, now seen corresponding path program 1 times [2025-03-17 05:48:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699535331] [2025-03-17 05:48:28,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:28,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 05:48:28,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 05:48:28,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:28,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:28,698 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-03-17 05:48:28,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 05:48:28,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699535331] [2025-03-17 05:48:28,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699535331] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 05:48:28,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005240714] [2025-03-17 05:48:28,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:28,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 05:48:28,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 05:48:28,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 05:48:28,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 05:48:28,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-03-17 05:48:29,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-03-17 05:48:29,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:29,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:29,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 05:48:29,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 05:48:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-17 05:48:29,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 05:48:29,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005240714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 05:48:29,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 05:48:29,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2025-03-17 05:48:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180988704] [2025-03-17 05:48:29,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 05:48:29,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 05:48:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 05:48:29,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 05:48:29,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 05:48:29,109 INFO L87 Difference]: Start difference. First operand 114 states and 167 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 05:48:29,142 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2025-03-17 05:48:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 05:48:29,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2025-03-17 05:48:29,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 05:48:29,146 INFO L225 Difference]: With dead ends: 229 [2025-03-17 05:48:29,146 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 05:48:29,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 05:48:29,151 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 05:48:29,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 484 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 05:48:29,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 05:48:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 05:48:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 95 states have internal predecessors, (131), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 05:48:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 169 transitions. [2025-03-17 05:48:29,162 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 169 transitions. Word has length 154 [2025-03-17 05:48:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 05:48:29,163 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 169 transitions. [2025-03-17 05:48:29,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 169 transitions. [2025-03-17 05:48:29,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 05:48:29,167 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:29,168 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:29,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 05:48:29,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-17 05:48:29,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:29,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:29,369 INFO L85 PathProgramCache]: Analyzing trace with hash -467059059, now seen corresponding path program 1 times [2025-03-17 05:48:29,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:29,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759221455] [2025-03-17 05:48:29,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:29,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:29,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 05:48:29,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 05:48:29,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:29,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-17 05:48:29,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 05:48:29,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759221455] [2025-03-17 05:48:29,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759221455] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 05:48:29,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 05:48:29,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 05:48:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595468393] [2025-03-17 05:48:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 05:48:29,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 05:48:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 05:48:29,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 05:48:29,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 05:48:29,650 INFO L87 Difference]: Start difference. First operand 116 states and 169 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 05:48:29,685 INFO L93 Difference]: Finished difference Result 231 states and 337 transitions. [2025-03-17 05:48:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 05:48:29,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2025-03-17 05:48:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 05:48:29,688 INFO L225 Difference]: With dead ends: 231 [2025-03-17 05:48:29,688 INFO L226 Difference]: Without dead ends: 116 [2025-03-17 05:48:29,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 05:48:29,689 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 05:48:29,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 05:48:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-17 05:48:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2025-03-17 05:48:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.368421052631579) internal successors, (130), 95 states have internal predecessors, (130), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 05:48:29,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2025-03-17 05:48:29,704 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 168 transitions. Word has length 156 [2025-03-17 05:48:29,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 05:48:29,704 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 168 transitions. [2025-03-17 05:48:29,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:29,704 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 168 transitions. [2025-03-17 05:48:29,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 05:48:29,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:29,707 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:29,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 05:48:29,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:29,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:29,708 INFO L85 PathProgramCache]: Analyzing trace with hash 886250638, now seen corresponding path program 1 times [2025-03-17 05:48:29,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:29,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226768425] [2025-03-17 05:48:29,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:29,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 05:48:29,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 05:48:29,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:29,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 05:48:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-17 05:48:30,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 05:48:30,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226768425] [2025-03-17 05:48:30,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226768425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 05:48:30,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 05:48:30,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 05:48:30,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336493997] [2025-03-17 05:48:30,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 05:48:30,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 05:48:30,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 05:48:30,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 05:48:30,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-17 05:48:30,887 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:31,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 05:48:31,361 INFO L93 Difference]: Finished difference Result 388 states and 559 transitions. [2025-03-17 05:48:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 05:48:31,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2025-03-17 05:48:31,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 05:48:31,363 INFO L225 Difference]: With dead ends: 388 [2025-03-17 05:48:31,363 INFO L226 Difference]: Without dead ends: 273 [2025-03-17 05:48:31,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2025-03-17 05:48:31,364 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 389 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 05:48:31,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1196 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 05:48:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2025-03-17 05:48:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 227. [2025-03-17 05:48:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 186 states have (on average 1.3655913978494623) internal successors, (254), 186 states have internal predecessors, (254), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2025-03-17 05:48:31,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 330 transitions. [2025-03-17 05:48:31,383 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 330 transitions. Word has length 156 [2025-03-17 05:48:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 05:48:31,383 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 330 transitions. [2025-03-17 05:48:31,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 05:48:31,384 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 330 transitions. [2025-03-17 05:48:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 05:48:31,385 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 05:48:31,385 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 05:48:31,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 05:48:31,385 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 05:48:31,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 05:48:31,385 INFO L85 PathProgramCache]: Analyzing trace with hash 380692013, now seen corresponding path program 1 times [2025-03-17 05:48:31,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 05:48:31,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421661298] [2025-03-17 05:48:31,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 05:48:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 05:48:31,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 05:48:31,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 05:48:31,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 05:48:31,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat