./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.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-sp_file-19.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 a696e6551ad1205554c4678998c1625e3c8a3a93c97ae7f8e7897edb0d3d5ceb --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:05:46,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:05:46,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 06:05:46,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:05:46,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:05:46,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:05:46,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:05:46,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:05:46,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:05:46,820 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:05:46,820 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:05:46,821 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:05:46,821 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:05:46,821 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:05:46,821 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:05:46,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:05:46,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:05:46,822 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:05:46,823 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:05:46,823 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:05:46,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:05:46,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:05:46,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:05:46,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:05:46,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:05:46,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:05:46,824 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 -> a696e6551ad1205554c4678998c1625e3c8a3a93c97ae7f8e7897edb0d3d5ceb [2025-03-17 06:05:47,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:05:47,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:05:47,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:05:47,064 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:05:47,064 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:05:47,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i [2025-03-17 06:05:48,215 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b0af37e/ae085ce635cd4d1288bf3347b2bede0f/FLAGb08b46f26 [2025-03-17 06:05:48,454 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:05:48,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-19.i [2025-03-17 06:05:48,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b0af37e/ae085ce635cd4d1288bf3347b2bede0f/FLAGb08b46f26 [2025-03-17 06:05:48,782 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b0af37e/ae085ce635cd4d1288bf3347b2bede0f [2025-03-17 06:05:48,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:05:48,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:05:48,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:05:48,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:05:48,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:05:48,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:05:48" (1/1) ... [2025-03-17 06:05:48,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca01079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:48, skipping insertion in model container [2025-03-17 06:05:48,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:05:48" (1/1) ... [2025-03-17 06:05:48,807 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:05:48,910 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-sp_file-19.i[917,930] [2025-03-17 06:05:48,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:05:48,970 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:05:48,978 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-sp_file-19.i[917,930] [2025-03-17 06:05:48,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:05:49,015 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:05:49,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49 WrapperNode [2025-03-17 06:05:49,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:05:49,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:05:49,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:05:49,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:05:49,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,070 INFO L138 Inliner]: procedures = 27, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 470 [2025-03-17 06:05:49,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:05:49,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:05:49,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:05:49,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:05:49,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,111 INFO L175 MemorySlicer]: Split 125 memory accesses to 2 slices as follows [2, 123]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 28 writes are split as follows [0, 28]. [2025-03-17 06:05:49,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,124 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:05:49,130 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:05:49,130 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:05:49,130 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:05:49,130 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (1/1) ... [2025-03-17 06:05:49,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:05:49,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:05:49,162 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 06:05:49,167 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 06:05:49,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 06:05:49,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:05:49,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:05:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 06:05:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 06:05:49,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:05:49,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:05:49,273 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:05:49,274 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:05:49,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L125: havoc property_#t~mem70#1;havoc property_#t~mem71#1;havoc property_#t~mem72#1;havoc property_#t~mem73#1;havoc property_#t~bitwise74#1;havoc property_#t~mem75#1;havoc property_#t~ite92#1;havoc property_#t~mem87#1;havoc property_#t~mem80#1;havoc property_#t~mem76#1;havoc property_#t~ite79#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~ite86#1;havoc property_#t~mem81#1;havoc property_#t~mem82#1;havoc property_#t~ite85#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~mem88#1;havoc property_#t~ite91#1;havoc property_#t~mem90#1;havoc property_#t~mem89#1;havoc property_#t~mem93#1;havoc property_#t~mem94#1;havoc property_#t~ite109#1;havoc property_#t~mem95#1;havoc property_#t~ite99#1;havoc property_#t~mem98#1;havoc property_#t~mem96#1;havoc property_#t~mem97#1;havoc property_#t~mem104#1;havoc property_#t~mem100#1;havoc property_#t~ite103#1;havoc property_#t~mem101#1;havoc property_#t~mem102#1;havoc property_#t~mem105#1;havoc property_#t~ite108#1;havoc property_#t~mem107#1;havoc property_#t~mem106#1;havoc property_#t~short110#1;havoc property_#t~mem111#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~mem114#1;havoc property_#t~mem115#1;havoc property_#t~ite122#1;havoc property_#t~mem116#1;havoc property_#t~ite119#1;havoc property_#t~mem118#1;havoc property_#t~mem117#1;havoc property_#t~mem121#1;havoc property_#t~mem120#1;havoc property_#t~short123#1;havoc property_#t~mem125#1;havoc property_#t~mem124#1;havoc property_#t~short126#1; [2025-03-17 06:05:49,633 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2025-03-17 06:05:49,633 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:05:49,648 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:05:49,648 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:05:49,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:05:49 BoogieIcfgContainer [2025-03-17 06:05:49,649 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:05:49,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:05:49,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:05:49,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:05:49,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:05:48" (1/3) ... [2025-03-17 06:05:49,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54782721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:05:49, skipping insertion in model container [2025-03-17 06:05:49,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:05:49" (2/3) ... [2025-03-17 06:05:49,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54782721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:05:49, skipping insertion in model container [2025-03-17 06:05:49,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:05:49" (3/3) ... [2025-03-17 06:05:49,655 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-19.i [2025-03-17 06:05:49,665 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:05:49,666 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-19.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:05:49,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:05:49,710 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;@6233b0b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:05:49,711 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:05:49,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:05:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 06:05:49,721 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:05:49,721 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:05:49,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:05:49,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:05:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1560219615, now seen corresponding path program 1 times [2025-03-17 06:05:49,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:05:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542024360] [2025-03-17 06:05:49,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:05:49,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:49,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:49,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:49,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-03-17 06:05:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:05:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542024360] [2025-03-17 06:05:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542024360] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:05:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407858861] [2025-03-17 06:05:50,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:50,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:05:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:05:50,034 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 06:05:50,036 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 06:05:50,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:50,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:50,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:50,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:50,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:05:50,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:05:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2025-03-17 06:05:50,263 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:05:50,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407858861] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:05:50,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:05:50,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:05:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200493070] [2025-03-17 06:05:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:05:50,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:05:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:05:50,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:05:50,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:05:50,296 INFO L87 Difference]: Start difference. First operand has 96 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 77 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-17 06:05:50,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:05:50,321 INFO L93 Difference]: Finished difference Result 189 states and 297 transitions. [2025-03-17 06:05:50,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:05:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2025-03-17 06:05:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:05:50,328 INFO L225 Difference]: With dead ends: 189 [2025-03-17 06:05:50,329 INFO L226 Difference]: Without dead ends: 94 [2025-03-17 06:05:50,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 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 06:05:50,334 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:05:50,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:05:50,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2025-03-17 06:05:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2025-03-17 06:05:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:05:50,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 135 transitions. [2025-03-17 06:05:50,370 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 135 transitions. Word has length 128 [2025-03-17 06:05:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:05:50,372 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 135 transitions. [2025-03-17 06:05:50,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-17 06:05:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 135 transitions. [2025-03-17 06:05:50,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 06:05:50,376 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:05:50,377 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:05:50,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 06:05:50,577 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 06:05:50,578 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:05:50,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:05:50,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1237734190, now seen corresponding path program 1 times [2025-03-17 06:05:50,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:05:50,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208219637] [2025-03-17 06:05:50,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:05:50,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:50,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:50,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:50,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:05:51,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:05:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208219637] [2025-03-17 06:05:51,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208219637] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:05:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24422526] [2025-03-17 06:05:51,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:05:51,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:05:51,032 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 06:05:51,032 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 06:05:51,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:51,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:51,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:51,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:51,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 06:05:51,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:05:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:05:51,236 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:05:51,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24422526] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:05:51,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:05:51,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-03-17 06:05:51,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40516530] [2025-03-17 06:05:51,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:05:51,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 06:05:51,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:05:51,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 06:05:51,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:05:51,239 INFO L87 Difference]: Start difference. First operand 94 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:51,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:05:51,274 INFO L93 Difference]: Finished difference Result 190 states and 273 transitions. [2025-03-17 06:05:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 06:05:51,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2025-03-17 06:05:51,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:05:51,277 INFO L225 Difference]: With dead ends: 190 [2025-03-17 06:05:51,277 INFO L226 Difference]: Without dead ends: 97 [2025-03-17 06:05:51,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:05:51,278 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:05:51,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 381 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:05:51,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-17 06:05:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2025-03-17 06:05:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:05:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 137 transitions. [2025-03-17 06:05:51,293 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 137 transitions. Word has length 128 [2025-03-17 06:05:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:05:51,294 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 137 transitions. [2025-03-17 06:05:51,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 137 transitions. [2025-03-17 06:05:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 06:05:51,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:05:51,300 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:05:51,307 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 06:05:51,505 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,SelfDestructingSolverStorable1 [2025-03-17 06:05:51,505 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:05:51,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:05:51,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1238657711, now seen corresponding path program 1 times [2025-03-17 06:05:51,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:05:51,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754838840] [2025-03-17 06:05:51,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:51,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:05:51,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:51,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:51,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:51,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:05:51,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:05:51,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754838840] [2025-03-17 06:05:51,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754838840] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:05:51,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774794203] [2025-03-17 06:05:51,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:51,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:05:51,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:05:51,744 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:05:51,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 06:05:51,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:51,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:51,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:51,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:51,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 06:05:51,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:05:51,925 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:05:51,925 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:05:51,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774794203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:05:51,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:05:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2025-03-17 06:05:51,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694296804] [2025-03-17 06:05:51,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:05:51,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:05:51,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:05:51,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:05:51,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:05:51,928 INFO L87 Difference]: Start difference. First operand 96 states and 137 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:05:51,972 INFO L93 Difference]: Finished difference Result 194 states and 277 transitions. [2025-03-17 06:05:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 06:05:51,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2025-03-17 06:05:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:05:51,974 INFO L225 Difference]: With dead ends: 194 [2025-03-17 06:05:51,974 INFO L226 Difference]: Without dead ends: 99 [2025-03-17 06:05:51,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 06:05:51,975 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:05:51,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:05:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-17 06:05:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2025-03-17 06:05:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:05:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 140 transitions. [2025-03-17 06:05:51,985 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 140 transitions. Word has length 128 [2025-03-17 06:05:51,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:05:51,987 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 140 transitions. [2025-03-17 06:05:51,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:51,987 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 140 transitions. [2025-03-17 06:05:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 06:05:51,991 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:05:51,991 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:05:51,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 06:05:52,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:05:52,192 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:05:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:05:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1109574992, now seen corresponding path program 1 times [2025-03-17 06:05:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:05:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73313834] [2025-03-17 06:05:52,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:05:52,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:52,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:52,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:52,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:05:55,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:05:55,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73313834] [2025-03-17 06:05:55,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73313834] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:05:55,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770685664] [2025-03-17 06:05:55,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:05:55,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:05:55,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:05:55,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:05:55,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 06:05:55,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:05:55,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:05:55,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:05:55,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:05:55,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 60 conjuncts are in the unsatisfiable core [2025-03-17 06:05:55,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:05:57,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:57,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:57,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:58,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:58,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:58,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:05:58,768 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-03-17 06:05:58,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2025-03-17 06:05:58,852 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2025-03-17 06:05:58,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 25 [2025-03-17 06:05:59,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,037 INFO L349 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2025-03-17 06:05:59,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 76 [2025-03-17 06:05:59,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:05:59,271 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-17 06:05:59,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 86 [2025-03-17 06:05:59,321 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 204 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2025-03-17 06:05:59,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:05:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:05:59,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770685664] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 06:05:59,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:05:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20, 12] total 33 [2025-03-17 06:05:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799058961] [2025-03-17 06:05:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:05:59,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 06:05:59,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:05:59,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 06:05:59,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2025-03-17 06:05:59,542 INFO L87 Difference]: Start difference. First operand 99 states and 140 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:59,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:05:59,809 INFO L93 Difference]: Finished difference Result 241 states and 338 transitions. [2025-03-17 06:05:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 06:05:59,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2025-03-17 06:05:59,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:05:59,810 INFO L225 Difference]: With dead ends: 241 [2025-03-17 06:05:59,810 INFO L226 Difference]: Without dead ends: 143 [2025-03-17 06:05:59,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=1141, Unknown=0, NotChecked=0, Total=1260 [2025-03-17 06:05:59,816 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 48 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:05:59,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 557 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:05:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-17 06:05:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 105. [2025-03-17 06:05:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:05:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 149 transitions. [2025-03-17 06:05:59,831 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 149 transitions. Word has length 128 [2025-03-17 06:05:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:05:59,831 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 149 transitions. [2025-03-17 06:05:59,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:05:59,831 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 149 transitions. [2025-03-17 06:05:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-17 06:05:59,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:05:59,832 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:05:59,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 06:06:00,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:00,037 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:00,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:00,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1832082607, now seen corresponding path program 1 times [2025-03-17 06:06:00,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:00,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825472241] [2025-03-17 06:06:00,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:00,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:00,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-17 06:06:00,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-17 06:06:00,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:00,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:00,226 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:00,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:00,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825472241] [2025-03-17 06:06:00,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825472241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:00,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:00,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 06:06:00,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032427419] [2025-03-17 06:06:00,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:00,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 06:06:00,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:00,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 06:06:00,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 06:06:00,228 INFO L87 Difference]: Start difference. First operand 105 states and 149 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:00,404 INFO L93 Difference]: Finished difference Result 250 states and 352 transitions. [2025-03-17 06:06:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 06:06:00,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2025-03-17 06:06:00,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:00,406 INFO L225 Difference]: With dead ends: 250 [2025-03-17 06:06:00,406 INFO L226 Difference]: Without dead ends: 146 [2025-03-17 06:06:00,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 06:06:00,407 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 46 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:00,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 467 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:06:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-17 06:06:00,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 111. [2025-03-17 06:06:00,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 92 states have internal predecessors, (123), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:06:00,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 157 transitions. [2025-03-17 06:06:00,415 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 157 transitions. Word has length 128 [2025-03-17 06:06:00,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:00,415 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 157 transitions. [2025-03-17 06:06:00,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2025-03-17 06:06:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-17 06:06:00,416 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:00,416 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:00,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 06:06:00,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:00,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 955720303, now seen corresponding path program 1 times [2025-03-17 06:06:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364913178] [2025-03-17 06:06:00,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:00,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-17 06:06:00,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-17 06:06:00,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:00,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:02,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:02,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364913178] [2025-03-17 06:06:02,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364913178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:02,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:02,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-17 06:06:02,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398179980] [2025-03-17 06:06:02,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:02,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 06:06:02,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:02,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 06:06:02,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2025-03-17 06:06:02,440 INFO L87 Difference]: Start difference. First operand 111 states and 157 transitions. Second operand has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-17 06:06:03,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:03,437 INFO L93 Difference]: Finished difference Result 263 states and 369 transitions. [2025-03-17 06:06:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 06:06:03,438 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 129 [2025-03-17 06:06:03,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:03,441 INFO L225 Difference]: With dead ends: 263 [2025-03-17 06:06:03,441 INFO L226 Difference]: Without dead ends: 153 [2025-03-17 06:06:03,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2025-03-17 06:06:03,443 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 386 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:03,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 471 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 06:06:03,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-17 06:06:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 123. [2025-03-17 06:06:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 104 states have (on average 1.3365384615384615) internal successors, (139), 104 states have internal predecessors, (139), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:06:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 173 transitions. [2025-03-17 06:06:03,464 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 173 transitions. Word has length 129 [2025-03-17 06:06:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:03,467 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 173 transitions. [2025-03-17 06:06:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-03-17 06:06:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 173 transitions. [2025-03-17 06:06:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 06:06:03,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:03,469 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:03,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 06:06:03,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:03,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash 284795599, now seen corresponding path program 1 times [2025-03-17 06:06:03,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:03,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377592881] [2025-03-17 06:06:03,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:03,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:03,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 06:06:03,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 06:06:03,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:03,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:04,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:04,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377592881] [2025-03-17 06:06:04,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377592881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:04,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:04,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 06:06:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423427182] [2025-03-17 06:06:04,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:04,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 06:06:04,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:04,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 06:06:04,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-17 06:06:04,252 INFO L87 Difference]: Start difference. First operand 123 states and 173 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:04,927 INFO L93 Difference]: Finished difference Result 319 states and 445 transitions. [2025-03-17 06:06:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 06:06:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2025-03-17 06:06:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:04,929 INFO L225 Difference]: With dead ends: 319 [2025-03-17 06:06:04,929 INFO L226 Difference]: Without dead ends: 193 [2025-03-17 06:06:04,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2025-03-17 06:06:04,930 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 217 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:04,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 506 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:06:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-03-17 06:06:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 140. [2025-03-17 06:06:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 121 states have internal predecessors, (163), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:06:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 197 transitions. [2025-03-17 06:06:04,948 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 197 transitions. Word has length 130 [2025-03-17 06:06:04,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:04,949 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 197 transitions. [2025-03-17 06:06:04,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 197 transitions. [2025-03-17 06:06:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 06:06:04,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:04,952 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:04,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 06:06:04,952 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:04,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:04,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1086354381, now seen corresponding path program 1 times [2025-03-17 06:06:04,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:04,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858866504] [2025-03-17 06:06:04,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:04,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:04,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 06:06:05,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 06:06:05,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:05,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:08,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:08,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858866504] [2025-03-17 06:06:08,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858866504] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:08,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:08,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-03-17 06:06:08,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881744097] [2025-03-17 06:06:08,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:08,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 06:06:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:08,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 06:06:08,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-17 06:06:08,987 INFO L87 Difference]: Start difference. First operand 140 states and 197 transitions. Second operand has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) [2025-03-17 06:06:10,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:10,129 INFO L93 Difference]: Finished difference Result 328 states and 460 transitions. [2025-03-17 06:06:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 06:06:10,130 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) Word has length 130 [2025-03-17 06:06:10,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:10,131 INFO L225 Difference]: With dead ends: 328 [2025-03-17 06:06:10,131 INFO L226 Difference]: Without dead ends: 189 [2025-03-17 06:06:10,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2025-03-17 06:06:10,132 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 300 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:10,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 514 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 06:06:10,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-03-17 06:06:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 140. [2025-03-17 06:06:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.322314049586777) internal successors, (160), 121 states have internal predecessors, (160), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-17 06:06:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 194 transitions. [2025-03-17 06:06:10,144 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 194 transitions. Word has length 130 [2025-03-17 06:06:10,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:10,145 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 194 transitions. [2025-03-17 06:06:10,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 16 states have internal predecessors, (48), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 6 states have call successors, (17) [2025-03-17 06:06:10,145 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 194 transitions. [2025-03-17 06:06:10,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:10,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:10,146 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:10,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 06:06:10,146 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:10,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:10,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1157362896, now seen corresponding path program 1 times [2025-03-17 06:06:10,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:10,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659229056] [2025-03-17 06:06:10,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:10,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:10,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:10,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:10,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:10,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:06:11,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:11,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659229056] [2025-03-17 06:06:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659229056] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:11,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036613458] [2025-03-17 06:06:11,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:11,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:11,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:06:11,940 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:06:11,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 06:06:12,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:12,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:12,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:12,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:12,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-17 06:06:12,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:06:13,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:13,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:13,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:13,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:13,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:13,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:13,940 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2025-03-17 06:06:13,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 25 [2025-03-17 06:06:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:13,992 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2025-03-17 06:06:13,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 35 [2025-03-17 06:06:14,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:14,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:14,069 INFO L349 Elim1Store]: treesize reduction 33, result has 26.7 percent of original size [2025-03-17 06:06:14,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 25 [2025-03-17 06:06:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 153 proven. 177 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-03-17 06:06:14,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:06:14,186 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_7_Pointer~0.offset Int) (v_ArrVal_535 Int) (~WrapperStruct00_var_1_7_Pointer~0.base Int)) (< 0 (+ (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_10_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_10_Pointer~0.base) c_~WrapperStruct00_var_1_10_Pointer~0.offset v_ArrVal_535)))) (store .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset (select (select .cse1 ~WrapperStruct00_var_1_7_Pointer~0.base) ~WrapperStruct00_var_1_7_Pointer~0.offset)))))) (store .cse0 c_~WrapperStruct00_var_1_11_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_11_Pointer~0.base) c_~WrapperStruct00_var_1_11_Pointer~0.offset (select (select .cse0 ~WrapperStruct00_var_1_7_Pointer~0.base) ~WrapperStruct00_var_1_7_Pointer~0.offset)))) c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset) 1))) is different from false [2025-03-17 06:06:14,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036613458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:14,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:06:14,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2025-03-17 06:06:14,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430347622] [2025-03-17 06:06:14,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 06:06:14,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 06:06:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:14,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 06:06:14,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=406, Unknown=1, NotChecked=42, Total=552 [2025-03-17 06:06:14,216 INFO L87 Difference]: Start difference. First operand 140 states and 194 transitions. Second operand has 21 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2025-03-17 06:06:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:15,270 INFO L93 Difference]: Finished difference Result 399 states and 547 transitions. [2025-03-17 06:06:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 06:06:15,271 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) Word has length 131 [2025-03-17 06:06:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:15,272 INFO L225 Difference]: With dead ends: 399 [2025-03-17 06:06:15,272 INFO L226 Difference]: Without dead ends: 260 [2025-03-17 06:06:15,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=235, Invalid=698, Unknown=1, NotChecked=58, Total=992 [2025-03-17 06:06:15,274 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 446 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:15,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 601 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-17 06:06:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-03-17 06:06:15,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 196. [2025-03-17 06:06:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 167 states have internal predecessors, (215), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 06:06:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 269 transitions. [2025-03-17 06:06:15,307 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 269 transitions. Word has length 131 [2025-03-17 06:06:15,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:15,307 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 269 transitions. [2025-03-17 06:06:15,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 7 states have call predecessors, (34), 9 states have call successors, (34) [2025-03-17 06:06:15,307 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 269 transitions. [2025-03-17 06:06:15,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:15,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:15,308 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:15,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 06:06:15,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:15,509 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:15,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:15,509 INFO L85 PathProgramCache]: Analyzing trace with hash 748538671, now seen corresponding path program 1 times [2025-03-17 06:06:15,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:15,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109629443] [2025-03-17 06:06:15,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:15,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:15,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:15,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:15,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:15,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:15,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:15,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109629443] [2025-03-17 06:06:15,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109629443] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:15,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:15,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 06:06:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645466795] [2025-03-17 06:06:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:15,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 06:06:15,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:15,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 06:06:15,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 06:06:15,740 INFO L87 Difference]: Start difference. First operand 196 states and 269 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:15,998 INFO L93 Difference]: Finished difference Result 427 states and 584 transitions. [2025-03-17 06:06:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 06:06:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2025-03-17 06:06:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:16,000 INFO L225 Difference]: With dead ends: 427 [2025-03-17 06:06:16,001 INFO L226 Difference]: Without dead ends: 232 [2025-03-17 06:06:16,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 06:06:16,004 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 137 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:16,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 339 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:06:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-03-17 06:06:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 197. [2025-03-17 06:06:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 167 states have (on average 1.2934131736526946) internal successors, (216), 168 states have internal predecessors, (216), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 06:06:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 270 transitions. [2025-03-17 06:06:16,031 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 270 transitions. Word has length 131 [2025-03-17 06:06:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:16,031 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 270 transitions. [2025-03-17 06:06:16,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 270 transitions. [2025-03-17 06:06:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:16,032 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:16,032 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:16,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 06:06:16,033 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:16,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:16,033 INFO L85 PathProgramCache]: Analyzing trace with hash 455135664, now seen corresponding path program 1 times [2025-03-17 06:06:16,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:16,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720039751] [2025-03-17 06:06:16,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:16,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:16,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:16,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:16,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:16,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 15 proven. 33 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:06:17,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:17,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720039751] [2025-03-17 06:06:17,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720039751] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:17,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241367186] [2025-03-17 06:06:17,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:17,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:17,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:06:17,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:06:17,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 06:06:17,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:17,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:17,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:17,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:17,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 70 conjuncts are in the unsatisfiable core [2025-03-17 06:06:17,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:06:18,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:18,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:18,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:18,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:19,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:19,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:19,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:19,637 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-03-17 06:06:19,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2025-03-17 06:06:19,697 INFO L349 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2025-03-17 06:06:19,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 25 [2025-03-17 06:06:19,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:19,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:19,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:19,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:19,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:19,889 INFO L349 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2025-03-17 06:06:19,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 76 [2025-03-17 06:06:20,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:20,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:20,195 INFO L349 Elim1Store]: treesize reduction 8, result has 87.7 percent of original size [2025-03-17 06:06:20,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 88 treesize of output 100 [2025-03-17 06:06:20,365 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 204 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2025-03-17 06:06:20,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:06:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:20,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241367186] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:20,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:06:20,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [20, 14] total 34 [2025-03-17 06:06:20,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922809051] [2025-03-17 06:06:20,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:20,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 06:06:20,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:20,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 06:06:20,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 06:06:20,621 INFO L87 Difference]: Start difference. First operand 197 states and 270 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:21,013 INFO L93 Difference]: Finished difference Result 444 states and 604 transitions. [2025-03-17 06:06:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 06:06:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2025-03-17 06:06:21,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:21,015 INFO L225 Difference]: With dead ends: 444 [2025-03-17 06:06:21,016 INFO L226 Difference]: Without dead ends: 248 [2025-03-17 06:06:21,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2025-03-17 06:06:21,017 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 54 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:21,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 716 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 06:06:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2025-03-17 06:06:21,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2025-03-17 06:06:21,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 181 states have (on average 1.287292817679558) internal successors, (233), 182 states have internal predecessors, (233), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 06:06:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 287 transitions. [2025-03-17 06:06:21,043 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 287 transitions. Word has length 131 [2025-03-17 06:06:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:21,043 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 287 transitions. [2025-03-17 06:06:21,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-17 06:06:21,044 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 287 transitions. [2025-03-17 06:06:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:21,044 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:21,044 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:21,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 06:06:21,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:21,245 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:21,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:21,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1560145539, now seen corresponding path program 1 times [2025-03-17 06:06:21,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:21,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2424315] [2025-03-17 06:06:21,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:21,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:21,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:21,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:21,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:21,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:23,629 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2025-03-17 06:06:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2424315] [2025-03-17 06:06:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2424315] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:06:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:06:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-17 06:06:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593173820] [2025-03-17 06:06:23,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:06:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 06:06:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:23,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 06:06:23,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-17 06:06:23,631 INFO L87 Difference]: Start difference. First operand 211 states and 287 transitions. Second operand has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-17 06:06:24,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:24,320 INFO L93 Difference]: Finished difference Result 485 states and 657 transitions. [2025-03-17 06:06:24,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 06:06:24,321 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 131 [2025-03-17 06:06:24,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:24,323 INFO L225 Difference]: With dead ends: 485 [2025-03-17 06:06:24,323 INFO L226 Difference]: Without dead ends: 270 [2025-03-17 06:06:24,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2025-03-17 06:06:24,324 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 486 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:24,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 339 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:06:24,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2025-03-17 06:06:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 204. [2025-03-17 06:06:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 174 states have (on average 1.264367816091954) internal successors, (220), 175 states have internal predecessors, (220), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 06:06:24,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2025-03-17 06:06:24,343 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 131 [2025-03-17 06:06:24,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:24,344 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2025-03-17 06:06:24,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 14 states have internal predecessors, (49), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2025-03-17 06:06:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2025-03-17 06:06:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:24,345 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:24,345 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:24,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 06:06:24,345 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:24,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:24,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1681114884, now seen corresponding path program 1 times [2025-03-17 06:06:24,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:24,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561361897] [2025-03-17 06:06:24,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:24,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:24,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:24,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:24,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:24,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2025-03-17 06:06:25,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:06:25,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561361897] [2025-03-17 06:06:25,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561361897] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:25,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273585587] [2025-03-17 06:06:25,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:25,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:25,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:06:25,446 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:06:25,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 06:06:25,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:25,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:25,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:25,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:25,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 44 conjuncts are in the unsatisfiable core [2025-03-17 06:06:25,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:06:26,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:06:27,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:27,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:27,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:06:27,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:27,861 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2025-03-17 06:06:27,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 25 [2025-03-17 06:06:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:27,938 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2025-03-17 06:06:27,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 35 [2025-03-17 06:06:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,101 INFO L349 Elim1Store]: treesize reduction 65, result has 18.8 percent of original size [2025-03-17 06:06:28,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 46 [2025-03-17 06:06:28,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:06:28,177 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2025-03-17 06:06:28,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2025-03-17 06:06:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 153 proven. 177 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2025-03-17 06:06:28,179 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:06:36,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273585587] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:06:36,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:06:36,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2025-03-17 06:06:36,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032124456] [2025-03-17 06:06:36,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 06:06:36,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 06:06:36,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:06:36,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 06:06:36,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=477, Unknown=2, NotChecked=0, Total=600 [2025-03-17 06:06:36,733 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 21 states have internal predecessors, (97), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2025-03-17 06:06:38,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:06:38,483 INFO L93 Difference]: Finished difference Result 471 states and 628 transitions. [2025-03-17 06:06:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 06:06:38,484 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 21 states have internal predecessors, (97), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) Word has length 131 [2025-03-17 06:06:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:06:38,486 INFO L225 Difference]: With dead ends: 471 [2025-03-17 06:06:38,486 INFO L226 Difference]: Without dead ends: 268 [2025-03-17 06:06:38,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 148 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=258, Invalid=732, Unknown=2, NotChecked=0, Total=992 [2025-03-17 06:06:38,488 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 517 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:06:38,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 560 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-03-17 06:06:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-03-17 06:06:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 207. [2025-03-17 06:06:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 176 states have (on average 1.25) internal successors, (220), 177 states have internal predecessors, (220), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-17 06:06:38,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 274 transitions. [2025-03-17 06:06:38,518 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 274 transitions. Word has length 131 [2025-03-17 06:06:38,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:06:38,518 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 274 transitions. [2025-03-17 06:06:38,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 21 states have internal predecessors, (97), 8 states have call successors, (34), 4 states have call predecessors, (34), 6 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2025-03-17 06:06:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 274 transitions. [2025-03-17 06:06:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 06:06:38,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:06:38,520 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:06:38,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 06:06:38,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:38,721 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:06:38,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:06:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1387711877, now seen corresponding path program 1 times [2025-03-17 06:06:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:06:38,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422831269] [2025-03-17 06:06:38,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:38,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:06:38,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:38,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:38,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:38,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 06:06:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1596561232] [2025-03-17 06:06:38,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:06:38,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:06:38,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:06:38,819 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:06:38,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 06:06:38,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 06:06:39,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 06:06:39,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:06:39,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:06:39,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 137 conjuncts are in the unsatisfiable core [2025-03-17 06:06:39,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:06:39,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2025-03-17 06:06:39,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2025-03-17 06:06:40,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 62 [2025-03-17 06:06:42,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 71 [2025-03-17 06:06:44,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 82 [2025-03-17 06:06:45,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2025-03-17 06:06:47,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 88 [2025-03-17 06:06:49,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 100 [2025-03-17 06:06:51,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 102 [2025-03-17 06:06:54,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 121 [2025-03-17 06:06:55,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 158 [2025-03-17 06:06:55,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 187