./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 e2fb8bed 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-?-e2fb8be-m [2025-03-08 16:41:54,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 16:41:54,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 16:41:54,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 16:41:54,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 16:41:54,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 16:41:54,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 16:41:54,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 16:41:54,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 16:41:54,880 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 16:41:54,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 16:41:54,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 16:41:54,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 16:41:54,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 16:41:54,881 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 16:41:54,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 16:41:54,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 16:41:54,882 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 16:41:54,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 16:41:54,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 16:41:54,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 16:41:54,883 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 [2025-03-08 16:41:55,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 16:41:55,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 16:41:55,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 16:41:55,103 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 16:41:55,104 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 16:41:55,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2025-03-08 16:41:56,292 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1724188/739c212cf0fa43919b3ee857a3cf08b6/FLAGeff5098a2 [2025-03-08 16:41:56,523 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 16:41:56,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-6.i [2025-03-08 16:41:56,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1724188/739c212cf0fa43919b3ee857a3cf08b6/FLAGeff5098a2 [2025-03-08 16:41:56,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd1724188/739c212cf0fa43919b3ee857a3cf08b6 [2025-03-08 16:41:56,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 16:41:56,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 16:41:56,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 16:41:56,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 16:41:56,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 16:41:56,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207b3483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56, skipping insertion in model container [2025-03-08 16:41:56,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 16:41:56,684 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] [2025-03-08 16:41:56,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 16:41:56,742 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 16:41:56,750 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] [2025-03-08 16:41:56,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 16:41:56,785 INFO L204 MainTranslator]: Completed translation [2025-03-08 16:41:56,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56 WrapperNode [2025-03-08 16:41:56,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 16:41:56,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 16:41:56,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 16:41:56,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 16:41:56,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,834 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 552 [2025-03-08 16:41:56,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 16:41:56,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 16:41:56,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 16:41:56,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 16:41:56,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,847 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,874 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]. [2025-03-08 16:41:56,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,891 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 16:41:56,917 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 16:41:56,917 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 16:41:56,917 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 16:41:56,917 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (1/1) ... [2025-03-08 16:41:56,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 16:41:56,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 16:41:56,947 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) [2025-03-08 16:41:56,953 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 [2025-03-08 16:41:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-08 16:41:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2025-03-08 16:41:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 16:41:56,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 16:41:56,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-03-08 16:41:56,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#16 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 16:41:56,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 16:41:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 16:41:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 16:41:57,130 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 16:41:57,132 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 16:41:57,546 INFO L1307 $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; [2025-03-08 16:41:57,588 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2025-03-08 16:41:57,588 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 16:41:57,596 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 16:41:57,596 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 16:41:57,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:41:57 BoogieIcfgContainer [2025-03-08 16:41:57,596 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 16:41:57,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 16:41:57,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 16:41:57,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 16:41:57,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 04:41:56" (1/3) ... [2025-03-08 16:41:57,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8b3827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:41:57, skipping insertion in model container [2025-03-08 16:41:57,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:41:56" (2/3) ... [2025-03-08 16:41:57,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8b3827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:41:57, skipping insertion in model container [2025-03-08 16:41:57,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:41:57" (3/3) ... [2025-03-08 16:41:57,603 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-6.i [2025-03-08 16:41:57,612 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 16:41:57,614 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-6.i that has 2 procedures, 121 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 16:41:57,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 16:41:57,663 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;@4ea31de5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 16:41:57,664 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 16:41:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 99 states have (on average 1.404040404040404) internal successors, (139), 100 states have internal predecessors, (139), 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) [2025-03-08 16:41:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-08 16:41:57,675 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:41:57,676 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, 1, 1] [2025-03-08 16:41:57,676 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:41:57,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:41:57,680 INFO L85 PathProgramCache]: Analyzing trace with hash -963337313, now seen corresponding path program 1 times [2025-03-08 16:41:57,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:41:57,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006519572] [2025-03-08 16:41:57,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:57,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:41:57,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 16:41:57,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 16:41:57,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:57,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:41:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-08 16:41:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 16:41:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006519572] [2025-03-08 16:41:58,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006519572] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 16:41:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003794939] [2025-03-08 16:41:58,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:58,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 16:41:58,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 16:41:58,026 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) [2025-03-08 16:41:58,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 16:41:58,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 16:41:58,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 16:41:58,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:58,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:41:58,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 16:41:58,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 16:41:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-08 16:41:58,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 16:41:58,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003794939] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 16:41:58,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 16:41:58,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 16:41:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942705218] [2025-03-08 16:41:58,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 16:41:58,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 16:41:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 16:41:58,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 16:41:58,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 16:41:58,357 INFO L87 Difference]: Start difference. First operand has 121 states, 99 states have (on average 1.404040404040404) internal successors, (139), 100 states have internal predecessors, (139), 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 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2025-03-08 16:41:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 16:41:58,382 INFO L93 Difference]: Finished difference Result 236 states and 368 transitions. [2025-03-08 16:41:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 16:41:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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 158 [2025-03-08 16:41:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 16:41:58,389 INFO L225 Difference]: With dead ends: 236 [2025-03-08 16:41:58,389 INFO L226 Difference]: Without dead ends: 118 [2025-03-08 16:41:58,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 16:41:58,393 INFO L435 NwaCegarLoop]: 172 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, 172 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 [2025-03-08 16:41:58,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 16:41:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-08 16:41:58,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-08 16:41:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 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) [2025-03-08 16:41:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2025-03-08 16:41:58,427 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 172 transitions. Word has length 158 [2025-03-08 16:41:58,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 16:41:58,427 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 172 transitions. [2025-03-08 16:41:58,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 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) [2025-03-08 16:41:58,428 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 172 transitions. [2025-03-08 16:41:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-08 16:41:58,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:41:58,430 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, 1, 1] [2025-03-08 16:41:58,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 16:41:58,630 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 [2025-03-08 16:41:58,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:41:58,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:41:58,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1433837422, now seen corresponding path program 1 times [2025-03-08 16:41:58,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:41:58,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578065909] [2025-03-08 16:41:58,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:41:58,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 16:41:58,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 16:41:58,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:58,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:41:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-08 16:41:59,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 16:41:59,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578065909] [2025-03-08 16:41:59,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578065909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 16:41:59,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 16:41:59,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 16:41:59,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034722243] [2025-03-08 16:41:59,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 16:41:59,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 16:41:59,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 16:41:59,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 16:41:59,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 16:41:59,003 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2025-03-08 16:41:59,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 16:41:59,035 INFO L93 Difference]: Finished difference Result 233 states and 341 transitions. [2025-03-08 16:41:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 16:41:59,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 158 [2025-03-08 16:41:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 16:41:59,037 INFO L225 Difference]: With dead ends: 233 [2025-03-08 16:41:59,038 INFO L226 Difference]: Without dead ends: 118 [2025-03-08 16:41:59,039 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 [2025-03-08 16:41:59,040 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 335 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 [2025-03-08 16:41:59,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 335 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 16:41:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-08 16:41:59,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-08 16:41:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 97 states have internal predecessors, (133), 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) [2025-03-08 16:41:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 171 transitions. [2025-03-08 16:41:59,053 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 171 transitions. Word has length 158 [2025-03-08 16:41:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 16:41:59,054 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 171 transitions. [2025-03-08 16:41:59,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2025-03-08 16:41:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 171 transitions. [2025-03-08 16:41:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-03-08 16:41:59,059 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:41:59,059 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, 1, 1] [2025-03-08 16:41:59,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 16:41:59,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:41:59,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:41:59,060 INFO L85 PathProgramCache]: Analyzing trace with hash 589365551, now seen corresponding path program 1 times [2025-03-08 16:41:59,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:41:59,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39463273] [2025-03-08 16:41:59,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:59,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:41:59,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 16:41:59,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 16:41:59,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:59,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:41:59,302 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-03-08 16:41:59,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 16:41:59,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39463273] [2025-03-08 16:41:59,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39463273] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 16:41:59,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320246066] [2025-03-08 16:41:59,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:59,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 16:41:59,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 16:41:59,307 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) [2025-03-08 16:41:59,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 16:41:59,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-03-08 16:41:59,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-03-08 16:41:59,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:59,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:41:59,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 16:41:59,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 16:41:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-08 16:41:59,588 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 16:41:59,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320246066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 16:41:59,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 16:41:59,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2025-03-08 16:41:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143663041] [2025-03-08 16:41:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 16:41:59,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 16:41:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 16:41:59,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 16:41:59,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 16:41:59,590 INFO L87 Difference]: Start difference. First operand 118 states and 171 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-03-08 16:41:59,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 16:41:59,618 INFO L93 Difference]: Finished difference Result 235 states and 342 transitions. [2025-03-08 16:41:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 16:41:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 158 [2025-03-08 16:41:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 16:41:59,620 INFO L225 Difference]: With dead ends: 235 [2025-03-08 16:41:59,622 INFO L226 Difference]: Without dead ends: 120 [2025-03-08 16:41:59,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 16:41:59,623 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 496 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 [2025-03-08 16:41:59,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 496 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 16:41:59,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-08 16:41:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-08 16:41:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 99 states have internal predecessors, (135), 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) [2025-03-08 16:41:59,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2025-03-08 16:41:59,635 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 158 [2025-03-08 16:41:59,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 16:41:59,635 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2025-03-08 16:41:59,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2025-03-08 16:41:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2025-03-08 16:41:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 16:41:59,636 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:41:59,637 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, 1, 1, 1, 1] [2025-03-08 16:41:59,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 16:41:59,837 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 [2025-03-08 16:41:59,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:41:59,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:41:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash 29650189, now seen corresponding path program 1 times [2025-03-08 16:41:59,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:41:59,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033478038] [2025-03-08 16:41:59,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:41:59,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:41:59,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 16:41:59,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 16:41:59,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:41:59,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:42:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-08 16:42:00,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 16:42:00,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033478038] [2025-03-08 16:42:00,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033478038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 16:42:00,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 16:42:00,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 16:42:00,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983645344] [2025-03-08 16:42:00,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 16:42:00,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 16:42:00,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 16:42:00,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 16:42:00,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 16:42:00,080 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-08 16:42:00,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 16:42:00,127 INFO L93 Difference]: Finished difference Result 237 states and 343 transitions. [2025-03-08 16:42:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 16:42:00,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 160 [2025-03-08 16:42:00,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 16:42:00,130 INFO L225 Difference]: With dead ends: 237 [2025-03-08 16:42:00,130 INFO L226 Difference]: Without dead ends: 120 [2025-03-08 16:42:00,130 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 [2025-03-08 16:42:00,131 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 491 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 [2025-03-08 16:42:00,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 491 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 16:42:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-08 16:42:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-08 16:42:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.3535353535353536) internal successors, (134), 99 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) [2025-03-08 16:42:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2025-03-08 16:42:00,141 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 160 [2025-03-08 16:42:00,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 16:42:00,142 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2025-03-08 16:42:00,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2025-03-08 16:42:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2025-03-08 16:42:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 16:42:00,144 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:42:00,144 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, 1, 1, 1, 1] [2025-03-08 16:42:00,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 16:42:00,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:42:00,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:42:00,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1382959886, now seen corresponding path program 1 times [2025-03-08 16:42:00,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:42:00,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866704036] [2025-03-08 16:42:00,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:42:00,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:42:00,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 16:42:00,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 16:42:00,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:42:00,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 16:42:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-08 16:42:01,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 16:42:01,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866704036] [2025-03-08 16:42:01,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866704036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 16:42:01,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 16:42:01,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 16:42:01,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092281835] [2025-03-08 16:42:01,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 16:42:01,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 16:42:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 16:42:01,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 16:42:01,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 16:42:01,243 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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) [2025-03-08 16:42:01,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 16:42:01,716 INFO L93 Difference]: Finished difference Result 396 states and 567 transitions. [2025-03-08 16:42:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 16:42:01,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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 160 [2025-03-08 16:42:01,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 16:42:01,719 INFO L225 Difference]: With dead ends: 396 [2025-03-08 16:42:01,719 INFO L226 Difference]: Without dead ends: 279 [2025-03-08 16:42:01,720 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 [2025-03-08 16:42:01,720 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 397 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 1224 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 [2025-03-08 16:42:01,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 1224 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 16:42:01,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2025-03-08 16:42:01,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 233. [2025-03-08 16:42:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 192 states have (on average 1.3541666666666667) internal successors, (260), 192 states have internal predecessors, (260), 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) [2025-03-08 16:42:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 336 transitions. [2025-03-08 16:42:01,751 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 336 transitions. Word has length 160 [2025-03-08 16:42:01,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 16:42:01,752 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 336 transitions. [2025-03-08 16:42:01,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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) [2025-03-08 16:42:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 336 transitions. [2025-03-08 16:42:01,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 16:42:01,754 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 16:42:01,754 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, 1, 1, 1, 1] [2025-03-08 16:42:01,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 16:42:01,755 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 16:42:01,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 16:42:01,755 INFO L85 PathProgramCache]: Analyzing trace with hash 877401261, now seen corresponding path program 1 times [2025-03-08 16:42:01,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 16:42:01,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326405032] [2025-03-08 16:42:01,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 16:42:01,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 16:42:01,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 16:42:01,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 16:42:01,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 16:42:01,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat