./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-a_file-58.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 588d5c1b74b435c7b48e7846cdcbcdd05a5e0ef56f650b6f67ae59d316b919cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:14:18,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:14:18,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:14:18,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:14:18,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:14:18,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:14:18,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:14:18,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:14:18,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:14:18,979 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:14:18,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:14:18,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:14:18,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:14:18,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:14:18,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:14:18,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:14:18,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:14:18,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:14:18,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:14:18,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:14:18,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:14:18,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:14:18,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:14:18,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:14:18,987 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:14:18,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:14:18,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:14:18,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:14:18,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:14:18,988 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:14:18,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:14:18,988 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:14:18,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:14:18,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:14:18,989 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:14:18,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:14:18,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:14:18,990 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 588d5c1b74b435c7b48e7846cdcbcdd05a5e0ef56f650b6f67ae59d316b919cf [2024-11-16 18:14:19,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:14:19,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:14:19,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:14:19,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:14:19,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:14:19,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-58.i [2024-11-16 18:14:20,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:14:20,536 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:14:20,537 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-58.i [2024-11-16 18:14:20,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50ebda0e/9d1889b39da64a0d992d05ff97769e63/FLAG0f8a52c7a [2024-11-16 18:14:20,561 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50ebda0e/9d1889b39da64a0d992d05ff97769e63 [2024-11-16 18:14:20,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:14:20,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:14:20,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:14:20,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:14:20,569 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:14:20,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4672d1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20, skipping insertion in model container [2024-11-16 18:14:20,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,591 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:14:20,749 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-a_file-58.i[916,929] [2024-11-16 18:14:20,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:14:20,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:14:20,832 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-a_file-58.i[916,929] [2024-11-16 18:14:20,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:14:20,880 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:14:20,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20 WrapperNode [2024-11-16 18:14:20,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:14:20,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:14:20,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:14:20,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:14:20,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,934 INFO L138 Inliner]: procedures = 26, calls = 156, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 443 [2024-11-16 18:14:20,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:14:20,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:14:20,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:14:20,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:14:20,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,967 INFO L175 MemorySlicer]: Split 125 memory accesses to 6 slices as follows [2, 6, 11, 7, 74, 25]. 59 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 6, 2]. The 15 writes are split as follows [0, 1, 1, 3, 8, 2]. [2024-11-16 18:14:20,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,987 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:20,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:14:20,999 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:14:20,999 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:14:20,999 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:14:21,005 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (1/1) ... [2024-11-16 18:14:21,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:14:21,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:21,035 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) [2024-11-16 18:14:21,037 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 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:14:21,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:14:21,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:14:21,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:14:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:14:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:14:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:14:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:14:21,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:14:21,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:14:21,162 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:14:21,164 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:14:21,480 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L95: havoc property_#t~mem68#1;havoc property_#t~ite83#1;havoc property_#t~mem74#1;havoc property_#t~mem70#1;havoc property_#t~mem69#1;havoc property_#t~ite73#1;havoc property_#t~mem71#1;havoc property_#t~mem72#1;havoc property_#t~mem77#1;havoc property_#t~mem75#1;havoc property_#t~mem76#1;havoc property_#t~ite82#1;havoc property_#t~mem79#1;havoc property_#t~mem78#1;havoc property_#t~mem81#1;havoc property_#t~mem80#1;havoc property_#t~mem87#1;havoc property_#t~mem84#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite115#1;havoc property_#t~mem90#1;havoc property_#t~mem88#1;havoc property_#t~mem89#1;havoc property_#t~short91#1;havoc property_#t~ite112#1;havoc property_#t~mem109#1;havoc property_#t~mem108#1;havoc property_#t~mem92#1;havoc property_#t~mem93#1;havoc property_#t~ite96#1;havoc property_#t~mem94#1;havoc property_#t~mem95#1;havoc property_#t~ite107#1;havoc property_#t~mem97#1;havoc property_#t~mem98#1;havoc property_#t~ite101#1;havoc property_#t~mem99#1;havoc property_#t~mem100#1;havoc property_#t~mem102#1;havoc property_#t~mem103#1;havoc property_#t~ite106#1;havoc property_#t~mem104#1;havoc property_#t~mem105#1;havoc property_#t~mem111#1;havoc property_#t~mem110#1;havoc property_#t~mem114#1;havoc property_#t~mem113#1;havoc property_#t~short116#1;havoc property_#t~mem117#1;havoc property_#t~mem118#1;havoc property_#t~ite122#1;havoc property_#t~mem121#1;havoc property_#t~mem119#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; [2024-11-16 18:14:21,506 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-16 18:14:21,506 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:14:21,518 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:14:21,519 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:14:21,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:14:21 BoogieIcfgContainer [2024-11-16 18:14:21,520 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:14:21,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:14:21,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:14:21,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:14:21,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:14:20" (1/3) ... [2024-11-16 18:14:21,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eff9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:21, skipping insertion in model container [2024-11-16 18:14:21,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:14:20" (2/3) ... [2024-11-16 18:14:21,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56eff9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:14:21, skipping insertion in model container [2024-11-16 18:14:21,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:14:21" (3/3) ... [2024-11-16 18:14:21,527 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-58.i [2024-11-16 18:14:21,539 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:14:21,539 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:14:21,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:14:21,594 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;@7c8b39da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:14:21,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:14:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 78 states have internal predecessors, (106), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:14:21,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:21,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:21,612 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:21,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:21,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1158814931, now seen corresponding path program 1 times [2024-11-16 18:14:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:21,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038462462] [2024-11-16 18:14:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:21,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:22,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:22,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038462462] [2024-11-16 18:14:22,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038462462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:22,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:22,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:14:22,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105342329] [2024-11-16 18:14:22,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:22,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:14:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:22,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:14:22,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:14:22,041 INFO L87 Difference]: Start difference. First operand has 95 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 78 states have internal predecessors, (106), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:22,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:22,066 INFO L93 Difference]: Finished difference Result 178 states and 274 transitions. [2024-11-16 18:14:22,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:14:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 118 [2024-11-16 18:14:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:22,073 INFO L225 Difference]: With dead ends: 178 [2024-11-16 18:14:22,073 INFO L226 Difference]: Without dead ends: 86 [2024-11-16 18:14:22,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:14:22,078 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:22,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-16 18:14:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-16 18:14:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 69 states have internal predecessors, (90), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:14:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2024-11-16 18:14:22,119 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 118 [2024-11-16 18:14:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:22,120 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-11-16 18:14:22,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2024-11-16 18:14:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:22,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:22,124 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:22,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:14:22,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:22,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2061162908, now seen corresponding path program 1 times [2024-11-16 18:14:22,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:22,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427507505] [2024-11-16 18:14:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:22,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:22,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:22,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427507505] [2024-11-16 18:14:22,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427507505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:22,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:22,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:14:22,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920922959] [2024-11-16 18:14:22,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:22,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:14:22,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:14:22,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:22,396 INFO L87 Difference]: Start difference. First operand 86 states and 120 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:22,432 INFO L93 Difference]: Finished difference Result 172 states and 241 transitions. [2024-11-16 18:14:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:14:22,434 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 118 [2024-11-16 18:14:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:22,436 INFO L225 Difference]: With dead ends: 172 [2024-11-16 18:14:22,436 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 18:14:22,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:14:22,437 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:22,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 342 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:14:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 18:14:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-16 18:14:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-16 18:14:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2024-11-16 18:14:22,452 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 118 [2024-11-16 18:14:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:22,454 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2024-11-16 18:14:22,454 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2024-11-16 18:14:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:22,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:22,457 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:22,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:14:22,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:22,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:22,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2032533757, now seen corresponding path program 1 times [2024-11-16 18:14:22,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:22,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141691530] [2024-11-16 18:14:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:22,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:22,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:22,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141691530] [2024-11-16 18:14:22,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141691530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:22,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:22,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:22,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693660992] [2024-11-16 18:14:22,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:22,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:22,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:22,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:22,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:22,876 INFO L87 Difference]: Start difference. First operand 88 states and 122 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:23,062 INFO L93 Difference]: Finished difference Result 255 states and 355 transitions. [2024-11-16 18:14:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:23,063 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 118 [2024-11-16 18:14:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:23,064 INFO L225 Difference]: With dead ends: 255 [2024-11-16 18:14:23,065 INFO L226 Difference]: Without dead ends: 170 [2024-11-16 18:14:23,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:23,066 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 107 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:23,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 536 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-16 18:14:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2024-11-16 18:14:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 134 states have (on average 1.291044776119403) internal successors, (173), 134 states have internal predecessors, (173), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-16 18:14:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2024-11-16 18:14:23,091 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 118 [2024-11-16 18:14:23,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:23,093 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2024-11-16 18:14:23,093 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:23,093 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2024-11-16 18:14:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:23,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:23,097 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:23,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:14:23,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:23,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:23,098 INFO L85 PathProgramCache]: Analyzing trace with hash -417082113, now seen corresponding path program 1 times [2024-11-16 18:14:23,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:23,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945842014] [2024-11-16 18:14:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:23,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:24,190 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:24,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:24,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945842014] [2024-11-16 18:14:24,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945842014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:24,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:24,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:24,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566488226] [2024-11-16 18:14:24,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:24,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:24,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:24,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:24,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:24,194 INFO L87 Difference]: Start difference. First operand 167 states and 233 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:24,577 INFO L93 Difference]: Finished difference Result 396 states and 550 transitions. [2024-11-16 18:14:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:24,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2024-11-16 18:14:24,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:24,579 INFO L225 Difference]: With dead ends: 396 [2024-11-16 18:14:24,579 INFO L226 Difference]: Without dead ends: 232 [2024-11-16 18:14:24,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:14:24,580 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 83 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:24,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 624 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:14:24,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-16 18:14:24,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 219. [2024-11-16 18:14:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.2944444444444445) internal successors, (233), 181 states have internal predecessors, (233), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 18:14:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 303 transitions. [2024-11-16 18:14:24,594 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 303 transitions. Word has length 118 [2024-11-16 18:14:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:24,595 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 303 transitions. [2024-11-16 18:14:24,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 8 states have internal predecessors, (46), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 303 transitions. [2024-11-16 18:14:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:24,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:24,596 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:24,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:14:24,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:24,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash -710485120, now seen corresponding path program 1 times [2024-11-16 18:14:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026479075] [2024-11-16 18:14:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:25,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:25,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026479075] [2024-11-16 18:14:25,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026479075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:25,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:25,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620352219] [2024-11-16 18:14:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:25,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:25,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:25,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:25,385 INFO L87 Difference]: Start difference. First operand 219 states and 303 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:25,620 INFO L93 Difference]: Finished difference Result 439 states and 606 transitions. [2024-11-16 18:14:25,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:25,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 118 [2024-11-16 18:14:25,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:25,622 INFO L225 Difference]: With dead ends: 439 [2024-11-16 18:14:25,623 INFO L226 Difference]: Without dead ends: 223 [2024-11-16 18:14:25,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:14:25,626 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 65 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:25,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 771 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:14:25,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-16 18:14:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2024-11-16 18:14:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.288888888888889) internal successors, (232), 181 states have internal predecessors, (232), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-16 18:14:25,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 302 transitions. [2024-11-16 18:14:25,648 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 302 transitions. Word has length 118 [2024-11-16 18:14:25,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:25,652 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 302 transitions. [2024-11-16 18:14:25,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 302 transitions. [2024-11-16 18:14:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:25,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:25,653 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:25,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:14:25,654 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:25,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:25,654 INFO L85 PathProgramCache]: Analyzing trace with hash 579990240, now seen corresponding path program 1 times [2024-11-16 18:14:25,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391601423] [2024-11-16 18:14:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:25,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:26,053 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:26,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:26,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391601423] [2024-11-16 18:14:26,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391601423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:26,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:26,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:26,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163400795] [2024-11-16 18:14:26,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:26,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:26,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:26,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:26,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:26,055 INFO L87 Difference]: Start difference. First operand 219 states and 302 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:26,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:26,219 INFO L93 Difference]: Finished difference Result 506 states and 697 transitions. [2024-11-16 18:14:26,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:26,223 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 118 [2024-11-16 18:14:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:26,226 INFO L225 Difference]: With dead ends: 506 [2024-11-16 18:14:26,226 INFO L226 Difference]: Without dead ends: 290 [2024-11-16 18:14:26,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:26,227 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 85 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:26,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 702 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:26,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-16 18:14:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2024-11-16 18:14:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 235 states have (on average 1.2851063829787235) internal successors, (302), 237 states have internal predecessors, (302), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-16 18:14:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 394 transitions. [2024-11-16 18:14:26,249 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 394 transitions. Word has length 118 [2024-11-16 18:14:26,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:26,250 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 394 transitions. [2024-11-16 18:14:26,250 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 394 transitions. [2024-11-16 18:14:26,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:14:26,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:26,252 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:26,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:14:26,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:26,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash 286587233, now seen corresponding path program 1 times [2024-11-16 18:14:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028286324] [2024-11-16 18:14:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:27,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:27,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028286324] [2024-11-16 18:14:27,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028286324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:27,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:27,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:14:27,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080782314] [2024-11-16 18:14:27,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:27,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:14:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:14:27,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:27,146 INFO L87 Difference]: Start difference. First operand 286 states and 394 transitions. Second operand has 9 states, 6 states have (on average 7.666666666666667) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:27,590 INFO L93 Difference]: Finished difference Result 590 states and 807 transitions. [2024-11-16 18:14:27,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:14:27,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 7.666666666666667) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) Word has length 118 [2024-11-16 18:14:27,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:27,593 INFO L225 Difference]: With dead ends: 590 [2024-11-16 18:14:27,593 INFO L226 Difference]: Without dead ends: 307 [2024-11-16 18:14:27,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:14:27,594 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 84 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:27,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 773 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:14:27,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-16 18:14:27,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 303. [2024-11-16 18:14:27,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 245 states have (on average 1.2653061224489797) internal successors, (310), 248 states have internal predecessors, (310), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-16 18:14:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 412 transitions. [2024-11-16 18:14:27,610 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 412 transitions. Word has length 118 [2024-11-16 18:14:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:27,611 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 412 transitions. [2024-11-16 18:14:27,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 7.666666666666667) internal successors, (46), 9 states have internal predecessors, (46), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 412 transitions. [2024-11-16 18:14:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:14:27,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:27,612 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:27,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:14:27,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:27,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:27,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1578609885, now seen corresponding path program 1 times [2024-11-16 18:14:27,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:27,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499311037] [2024-11-16 18:14:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:28,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:28,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499311037] [2024-11-16 18:14:28,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499311037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:28,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:28,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:14:28,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388148137] [2024-11-16 18:14:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:28,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:14:28,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:28,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:14:28,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:28,077 INFO L87 Difference]: Start difference. First operand 303 states and 412 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:28,435 INFO L93 Difference]: Finished difference Result 727 states and 993 transitions. [2024-11-16 18:14:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:14:28,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2024-11-16 18:14:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:28,439 INFO L225 Difference]: With dead ends: 727 [2024-11-16 18:14:28,439 INFO L226 Difference]: Without dead ends: 443 [2024-11-16 18:14:28,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:14:28,440 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 90 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:28,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 980 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:14:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-16 18:14:28,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2024-11-16 18:14:28,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 356 states have (on average 1.2724719101123596) internal successors, (453), 361 states have internal predecessors, (453), 73 states have call successors, (73), 8 states have call predecessors, (73), 8 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-16 18:14:28,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 599 transitions. [2024-11-16 18:14:28,470 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 599 transitions. Word has length 119 [2024-11-16 18:14:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:28,471 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 599 transitions. [2024-11-16 18:14:28,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 599 transitions. [2024-11-16 18:14:28,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:14:28,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:28,472 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:28,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:14:28,473 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:28,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:28,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1872012892, now seen corresponding path program 1 times [2024-11-16 18:14:28,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:28,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979708799] [2024-11-16 18:14:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:28,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:29,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:29,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979708799] [2024-11-16 18:14:29,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979708799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:29,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:29,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:29,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579876292] [2024-11-16 18:14:29,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:29,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:29,064 INFO L87 Difference]: Start difference. First operand 438 states and 599 transitions. Second operand has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:29,390 INFO L93 Difference]: Finished difference Result 880 states and 1198 transitions. [2024-11-16 18:14:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:29,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2024-11-16 18:14:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:29,392 INFO L225 Difference]: With dead ends: 880 [2024-11-16 18:14:29,393 INFO L226 Difference]: Without dead ends: 461 [2024-11-16 18:14:29,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:29,395 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 82 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:29,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 503 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:14:29,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-16 18:14:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 457. [2024-11-16 18:14:29,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 368 states have (on average 1.2608695652173914) internal successors, (464), 373 states have internal predecessors, (464), 77 states have call successors, (77), 11 states have call predecessors, (77), 11 states have return successors, (77), 72 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-16 18:14:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 618 transitions. [2024-11-16 18:14:29,425 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 618 transitions. Word has length 119 [2024-11-16 18:14:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:29,426 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 618 transitions. [2024-11-16 18:14:29,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 618 transitions. [2024-11-16 18:14:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:14:29,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:29,428 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:29,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:14:29,428 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:29,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:29,428 INFO L85 PathProgramCache]: Analyzing trace with hash 36841759, now seen corresponding path program 1 times [2024-11-16 18:14:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:29,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810504539] [2024-11-16 18:14:29,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:29,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:29,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:29,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810504539] [2024-11-16 18:14:29,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810504539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:29,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:29,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:14:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538055570] [2024-11-16 18:14:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:29,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:14:29,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:14:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:14:29,590 INFO L87 Difference]: Start difference. First operand 457 states and 618 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:29,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:29,739 INFO L93 Difference]: Finished difference Result 807 states and 1092 transitions. [2024-11-16 18:14:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:29,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2024-11-16 18:14:29,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:29,741 INFO L225 Difference]: With dead ends: 807 [2024-11-16 18:14:29,741 INFO L226 Difference]: Without dead ends: 337 [2024-11-16 18:14:29,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:14:29,743 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 108 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:29,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 445 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:29,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-16 18:14:29,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 334. [2024-11-16 18:14:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 61 states have call successors, (61), 9 states have call predecessors, (61), 9 states have return successors, (61), 58 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-16 18:14:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 444 transitions. [2024-11-16 18:14:29,763 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 444 transitions. Word has length 119 [2024-11-16 18:14:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:29,763 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 444 transitions. [2024-11-16 18:14:29,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 444 transitions. [2024-11-16 18:14:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:14:29,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:29,765 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:29,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:14:29,765 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:29,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1871885540, now seen corresponding path program 1 times [2024-11-16 18:14:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608595446] [2024-11-16 18:14:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:30,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:30,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608595446] [2024-11-16 18:14:30,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608595446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:30,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:30,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:30,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568613638] [2024-11-16 18:14:30,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:30,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:30,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:30,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:30,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:30,328 INFO L87 Difference]: Start difference. First operand 334 states and 444 transitions. Second operand has 8 states, 5 states have (on average 9.4) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:30,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:30,746 INFO L93 Difference]: Finished difference Result 645 states and 856 transitions. [2024-11-16 18:14:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:30,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 9.4) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) Word has length 119 [2024-11-16 18:14:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:30,749 INFO L225 Difference]: With dead ends: 645 [2024-11-16 18:14:30,749 INFO L226 Difference]: Without dead ends: 342 [2024-11-16 18:14:30,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:30,750 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 76 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:30,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 698 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:14:30,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-16 18:14:30,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2024-11-16 18:14:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 266 states have (on average 1.218045112781955) internal successors, (324), 269 states have internal predecessors, (324), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 58 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-16 18:14:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 446 transitions. [2024-11-16 18:14:30,771 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 446 transitions. Word has length 119 [2024-11-16 18:14:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:30,771 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 446 transitions. [2024-11-16 18:14:30,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 9.4) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:30,772 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 446 transitions. [2024-11-16 18:14:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:14:30,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:30,772 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:30,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:14:30,773 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:30,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1578482533, now seen corresponding path program 1 times [2024-11-16 18:14:30,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:30,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101854550] [2024-11-16 18:14:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:30,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:31,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:31,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101854550] [2024-11-16 18:14:31,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101854550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:31,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:31,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:14:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717127071] [2024-11-16 18:14:31,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:31,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:14:31,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:31,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:14:31,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:14:31,230 INFO L87 Difference]: Start difference. First operand 338 states and 446 transitions. Second operand has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:31,617 INFO L93 Difference]: Finished difference Result 649 states and 857 transitions. [2024-11-16 18:14:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:14:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2024-11-16 18:14:31,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:31,619 INFO L225 Difference]: With dead ends: 649 [2024-11-16 18:14:31,620 INFO L226 Difference]: Without dead ends: 342 [2024-11-16 18:14:31,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:14:31,621 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 77 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:31,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1155 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:14:31,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-16 18:14:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2024-11-16 18:14:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 266 states have (on average 1.2142857142857142) internal successors, (323), 269 states have internal predecessors, (323), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 58 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-16 18:14:31,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2024-11-16 18:14:31,641 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 119 [2024-11-16 18:14:31,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:31,641 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2024-11-16 18:14:31,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:31,642 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2024-11-16 18:14:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:14:31,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:31,643 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:31,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:14:31,643 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:31,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:31,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2053313421, now seen corresponding path program 1 times [2024-11-16 18:14:31,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:31,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917207974] [2024-11-16 18:14:31,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:31,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:31,876 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:31,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:31,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917207974] [2024-11-16 18:14:31,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917207974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:31,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:31,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:14:31,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067560972] [2024-11-16 18:14:31,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:31,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:14:31,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:31,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:14:31,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:14:31,878 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:32,048 INFO L93 Difference]: Finished difference Result 880 states and 1156 transitions. [2024-11-16 18:14:32,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:14:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2024-11-16 18:14:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:32,051 INFO L225 Difference]: With dead ends: 880 [2024-11-16 18:14:32,051 INFO L226 Difference]: Without dead ends: 573 [2024-11-16 18:14:32,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:14:32,052 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 69 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:32,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 605 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:14:32,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-16 18:14:32,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 476. [2024-11-16 18:14:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 382 states have (on average 1.2015706806282722) internal successors, (459), 387 states have internal predecessors, (459), 79 states have call successors, (79), 14 states have call predecessors, (79), 14 states have return successors, (79), 74 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-16 18:14:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 617 transitions. [2024-11-16 18:14:32,083 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 617 transitions. Word has length 120 [2024-11-16 18:14:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:32,083 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 617 transitions. [2024-11-16 18:14:32,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 617 transitions. [2024-11-16 18:14:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:14:32,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:32,085 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:32,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:14:32,086 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:32,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash -801021867, now seen corresponding path program 1 times [2024-11-16 18:14:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:32,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540708100] [2024-11-16 18:14:32,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:32,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-16 18:14:32,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:32,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540708100] [2024-11-16 18:14:32,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540708100] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:32,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031112222] [2024-11-16 18:14:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:32,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:14:32,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:32,967 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) [2024-11-16 18:14:32,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 18:14:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:33,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-16 18:14:33,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:14:33,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-16 18:14:33,696 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 31 treesize of output 15 [2024-11-16 18:14:33,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:14:33,886 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 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-16 18:14:33,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:14:33,979 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 1 case distinctions, treesize of input 42 treesize of output 29 [2024-11-16 18:14:34,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 59 [2024-11-16 18:14:34,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:14:34,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 83 [2024-11-16 18:14:49,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:14:49,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 62 [2024-11-16 18:14:49,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-16 18:14:49,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-16 18:14:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 296 proven. 63 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-16 18:14:49,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:14:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:50,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031112222] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:50,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:14:50,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 28] total 42 [2024-11-16 18:14:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808086939] [2024-11-16 18:14:50,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:50,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:50,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:50,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1506, Unknown=2, NotChecked=0, Total=1722 [2024-11-16 18:14:50,531 INFO L87 Difference]: Start difference. First operand 476 states and 617 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:51,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:51,356 INFO L93 Difference]: Finished difference Result 1003 states and 1291 transitions. [2024-11-16 18:14:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:51,357 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 121 [2024-11-16 18:14:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:51,360 INFO L225 Difference]: With dead ends: 1003 [2024-11-16 18:14:51,360 INFO L226 Difference]: Without dead ends: 558 [2024-11-16 18:14:51,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=246, Invalid=1732, Unknown=2, NotChecked=0, Total=1980 [2024-11-16 18:14:51,363 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 182 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:51,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 558 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:14:51,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-16 18:14:51,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 550. [2024-11-16 18:14:51,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 447 states have (on average 1.2058165548098434) internal successors, (539), 454 states have internal predecessors, (539), 83 states have call successors, (83), 19 states have call predecessors, (83), 19 states have return successors, (83), 76 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-16 18:14:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 705 transitions. [2024-11-16 18:14:51,396 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 705 transitions. Word has length 121 [2024-11-16 18:14:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:51,396 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 705 transitions. [2024-11-16 18:14:51,396 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:14:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 705 transitions. [2024-11-16 18:14:51,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:14:51,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:51,397 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:51,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 18:14:51,601 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,SelfDestructingSolverStorable13 [2024-11-16 18:14:51,602 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:51,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1775042707, now seen corresponding path program 1 times [2024-11-16 18:14:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:51,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733696720] [2024-11-16 18:14:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:52,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:52,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733696720] [2024-11-16 18:14:52,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733696720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:52,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:52,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:14:52,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445046403] [2024-11-16 18:14:52,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:52,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:14:52,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:52,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:14:52,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:14:52,536 INFO L87 Difference]: Start difference. First operand 550 states and 705 transitions. Second operand has 10 states, 7 states have (on average 7.0) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:53,692 INFO L93 Difference]: Finished difference Result 1071 states and 1373 transitions. [2024-11-16 18:14:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 18:14:53,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.0) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) Word has length 121 [2024-11-16 18:14:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:53,695 INFO L225 Difference]: With dead ends: 1071 [2024-11-16 18:14:53,695 INFO L226 Difference]: Without dead ends: 556 [2024-11-16 18:14:53,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:14:53,697 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 148 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:53,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1065 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:14:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-16 18:14:53,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 550. [2024-11-16 18:14:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 447 states have (on average 1.203579418344519) internal successors, (538), 454 states have internal predecessors, (538), 83 states have call successors, (83), 19 states have call predecessors, (83), 19 states have return successors, (83), 76 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-16 18:14:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 704 transitions. [2024-11-16 18:14:53,732 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 704 transitions. Word has length 121 [2024-11-16 18:14:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:53,732 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 704 transitions. [2024-11-16 18:14:53,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.0) internal successors, (49), 10 states have internal predecessors, (49), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:14:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 704 transitions. [2024-11-16 18:14:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:14:53,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:53,733 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:53,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:14:53,734 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:53,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1004753462, now seen corresponding path program 1 times [2024-11-16 18:14:53,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:53,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080143493] [2024-11-16 18:14:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:53,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:54,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080143493] [2024-11-16 18:14:54,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080143493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:54,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:54,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:14:54,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160071992] [2024-11-16 18:14:54,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:54,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:14:54,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:14:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:14:54,371 INFO L87 Difference]: Start difference. First operand 550 states and 704 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:54,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:54,669 INFO L93 Difference]: Finished difference Result 585 states and 744 transitions. [2024-11-16 18:14:54,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:14:54,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2024-11-16 18:14:54,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:54,672 INFO L225 Difference]: With dead ends: 585 [2024-11-16 18:14:54,672 INFO L226 Difference]: Without dead ends: 582 [2024-11-16 18:14:54,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:14:54,673 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 65 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:54,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 569 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:14:54,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-16 18:14:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 570. [2024-11-16 18:14:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 470 states have (on average 1.1936170212765957) internal successors, (561), 477 states have internal predecessors, (561), 79 states have call successors, (79), 20 states have call predecessors, (79), 20 states have return successors, (79), 72 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-16 18:14:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 719 transitions. [2024-11-16 18:14:54,714 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 719 transitions. Word has length 122 [2024-11-16 18:14:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:54,714 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 719 transitions. [2024-11-16 18:14:54,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:14:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 719 transitions. [2024-11-16 18:14:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:14:54,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:54,716 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:54,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:14:54,716 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:54,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:54,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1033382613, now seen corresponding path program 1 times [2024-11-16 18:14:54,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:54,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491774711] [2024-11-16 18:14:54,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:54,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:14:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491774711] [2024-11-16 18:14:56,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491774711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:14:56,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:14:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:14:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815812992] [2024-11-16 18:14:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:14:56,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:14:56,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:14:56,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:14:56,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:14:56,238 INFO L87 Difference]: Start difference. First operand 570 states and 719 transitions. Second operand has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:14:58,466 INFO L93 Difference]: Finished difference Result 1665 states and 2102 transitions. [2024-11-16 18:14:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:14:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2024-11-16 18:14:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:14:58,472 INFO L225 Difference]: With dead ends: 1665 [2024-11-16 18:14:58,472 INFO L226 Difference]: Without dead ends: 1118 [2024-11-16 18:14:58,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:14:58,473 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 162 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:14:58,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 828 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 18:14:58,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-16 18:14:58,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 724. [2024-11-16 18:14:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 624 states have (on average 1.2179487179487178) internal successors, (760), 631 states have internal predecessors, (760), 79 states have call successors, (79), 20 states have call predecessors, (79), 20 states have return successors, (79), 72 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-16 18:14:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 918 transitions. [2024-11-16 18:14:58,538 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 918 transitions. Word has length 122 [2024-11-16 18:14:58,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:14:58,538 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 918 transitions. [2024-11-16 18:14:58,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.555555555555555) internal successors, (50), 11 states have internal predecessors, (50), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:14:58,538 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 918 transitions. [2024-11-16 18:14:58,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:14:58,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:14:58,540 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:14:58,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:14:58,540 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:14:58,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:14:58,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1985386760, now seen corresponding path program 1 times [2024-11-16 18:14:58,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:14:58,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385420024] [2024-11-16 18:14:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:14:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:14:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:14:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:14:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:14:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:14:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:14:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:14:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:14:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:14:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:14:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:14:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:14:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:14:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:14:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:14:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:14:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 66 proven. 12 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-16 18:14:59,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:14:59,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385420024] [2024-11-16 18:14:59,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385420024] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:14:59,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154171343] [2024-11-16 18:14:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:14:59,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:14:59,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:14:59,966 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) [2024-11-16 18:14:59,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 18:15:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:00,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-16 18:15:00,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:15:00,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-16 18:15:00,413 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 [2024-11-16 18:15:00,460 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 19 treesize of output 1 [2024-11-16 18:15:00,474 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 19 treesize of output 1 [2024-11-16 18:15:00,488 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 19 treesize of output 1 [2024-11-16 18:15:00,518 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 [2024-11-16 18:15:00,524 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 19 treesize of output 1 [2024-11-16 18:15:00,690 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:00,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 32 [2024-11-16 18:15:00,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2024-11-16 18:15:00,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2024-11-16 18:15:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 182 proven. 30 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-16 18:15:00,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:15:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:01,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154171343] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:01,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:15:01,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19, 9] total 27 [2024-11-16 18:15:01,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146022469] [2024-11-16 18:15:01,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:01,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:15:01,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:01,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:15:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:15:01,005 INFO L87 Difference]: Start difference. First operand 724 states and 918 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:01,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:01,348 INFO L93 Difference]: Finished difference Result 1430 states and 1814 transitions. [2024-11-16 18:15:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:15:01,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2024-11-16 18:15:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:01,352 INFO L225 Difference]: With dead ends: 1430 [2024-11-16 18:15:01,352 INFO L226 Difference]: Without dead ends: 729 [2024-11-16 18:15:01,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-11-16 18:15:01,354 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:01,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 313 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:01,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-16 18:15:01,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 724. [2024-11-16 18:15:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 624 states have (on average 1.2131410256410255) internal successors, (757), 631 states have internal predecessors, (757), 79 states have call successors, (79), 20 states have call predecessors, (79), 20 states have return successors, (79), 72 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-16 18:15:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 915 transitions. [2024-11-16 18:15:01,413 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 915 transitions. Word has length 122 [2024-11-16 18:15:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:01,413 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 915 transitions. [2024-11-16 18:15:01,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 915 transitions. [2024-11-16 18:15:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:15:01,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:01,414 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:01,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 18:15:01,615 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,SelfDestructingSolverStorable17 [2024-11-16 18:15:01,615 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:01,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:01,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1054778358, now seen corresponding path program 1 times [2024-11-16 18:15:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:01,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408357480] [2024-11-16 18:15:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:02,685 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-16 18:15:02,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:02,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408357480] [2024-11-16 18:15:02,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408357480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:02,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880632784] [2024-11-16 18:15:02,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:02,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:02,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:02,687 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) [2024-11-16 18:15:02,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 18:15:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:03,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-11-16 18:15:03,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:15:03,356 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 25 treesize of output 5 [2024-11-16 18:15:03,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:03,506 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 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-16 18:15:03,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2024-11-16 18:15:03,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 32 [2024-11-16 18:15:04,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:04,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 48 [2024-11-16 18:15:05,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 71 [2024-11-16 18:15:05,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:05,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 83 [2024-11-16 18:15:06,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2024-11-16 18:15:07,556 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 62 proven. 342 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-16 18:15:07,556 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:15:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:08,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880632784] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:08,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:15:08,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14, 38] total 58 [2024-11-16 18:15:08,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444886441] [2024-11-16 18:15:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:08,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:08,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:08,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:08,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=2996, Unknown=0, NotChecked=0, Total=3306 [2024-11-16 18:15:08,774 INFO L87 Difference]: Start difference. First operand 724 states and 915 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:09,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:09,621 INFO L93 Difference]: Finished difference Result 1506 states and 1890 transitions. [2024-11-16 18:15:09,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:15:09,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 123 [2024-11-16 18:15:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:09,625 INFO L225 Difference]: With dead ends: 1506 [2024-11-16 18:15:09,626 INFO L226 Difference]: Without dead ends: 805 [2024-11-16 18:15:09,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=341, Invalid=3319, Unknown=0, NotChecked=0, Total=3660 [2024-11-16 18:15:09,628 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 254 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:09,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 523 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:15:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-16 18:15:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 637. [2024-11-16 18:15:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 546 states have (on average 1.2032967032967032) internal successors, (657), 550 states have internal predecessors, (657), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 797 transitions. [2024-11-16 18:15:09,682 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 797 transitions. Word has length 123 [2024-11-16 18:15:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:09,683 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 797 transitions. [2024-11-16 18:15:09,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 797 transitions. [2024-11-16 18:15:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:15:09,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:09,685 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:09,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 18:15:09,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:09,885 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:09,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:09,886 INFO L85 PathProgramCache]: Analyzing trace with hash 761375351, now seen corresponding path program 1 times [2024-11-16 18:15:09,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708086398] [2024-11-16 18:15:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:09,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:10,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:10,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708086398] [2024-11-16 18:15:10,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708086398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:10,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:10,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:15:10,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372371323] [2024-11-16 18:15:10,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:10,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:15:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:15:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:10,603 INFO L87 Difference]: Start difference. First operand 637 states and 797 transitions. Second operand has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:15:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:11,475 INFO L93 Difference]: Finished difference Result 1291 states and 1602 transitions. [2024-11-16 18:15:11,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:15:11,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) Word has length 123 [2024-11-16 18:15:11,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:11,479 INFO L225 Difference]: With dead ends: 1291 [2024-11-16 18:15:11,479 INFO L226 Difference]: Without dead ends: 657 [2024-11-16 18:15:11,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:15:11,481 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 183 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:11,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 889 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:15:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-16 18:15:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 597. [2024-11-16 18:15:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 506 states have (on average 1.1778656126482214) internal successors, (596), 510 states have internal predecessors, (596), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 736 transitions. [2024-11-16 18:15:11,549 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 736 transitions. Word has length 123 [2024-11-16 18:15:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:11,550 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 736 transitions. [2024-11-16 18:15:11,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 7.285714285714286) internal successors, (51), 10 states have internal predecessors, (51), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-16 18:15:11,550 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 736 transitions. [2024-11-16 18:15:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:15:11,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:11,551 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:11,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:15:11,551 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:11,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1726452713, now seen corresponding path program 1 times [2024-11-16 18:15:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:11,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850451247] [2024-11-16 18:15:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:11,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:11,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:12,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:12,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850451247] [2024-11-16 18:15:12,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850451247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:12,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:12,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:15:12,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278299056] [2024-11-16 18:15:12,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:12,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:15:12,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:12,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:15:12,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:15:12,009 INFO L87 Difference]: Start difference. First operand 597 states and 736 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:12,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:12,397 INFO L93 Difference]: Finished difference Result 1245 states and 1520 transitions. [2024-11-16 18:15:12,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:15:12,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 123 [2024-11-16 18:15:12,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:12,400 INFO L225 Difference]: With dead ends: 1245 [2024-11-16 18:15:12,400 INFO L226 Difference]: Without dead ends: 651 [2024-11-16 18:15:12,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:12,401 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 59 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:12,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 709 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:15:12,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-16 18:15:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 573. [2024-11-16 18:15:12,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 482 states have (on average 1.157676348547718) internal successors, (558), 486 states have internal predecessors, (558), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 698 transitions. [2024-11-16 18:15:12,465 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 698 transitions. Word has length 123 [2024-11-16 18:15:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:12,465 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 698 transitions. [2024-11-16 18:15:12,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 698 transitions. [2024-11-16 18:15:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:15:12,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:12,466 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:12,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:15:12,466 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:12,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1986530516, now seen corresponding path program 1 times [2024-11-16 18:15:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:12,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904875895] [2024-11-16 18:15:12,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:12,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:12,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:12,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904875895] [2024-11-16 18:15:12,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904875895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:12,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:12,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:15:12,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261553839] [2024-11-16 18:15:12,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:12,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:15:12,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:12,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:15:12,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:12,820 INFO L87 Difference]: Start difference. First operand 573 states and 698 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:13,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:13,307 INFO L93 Difference]: Finished difference Result 1587 states and 1916 transitions. [2024-11-16 18:15:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 18:15:13,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-16 18:15:13,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:13,311 INFO L225 Difference]: With dead ends: 1587 [2024-11-16 18:15:13,311 INFO L226 Difference]: Without dead ends: 1017 [2024-11-16 18:15:13,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:15:13,313 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 198 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:13,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 890 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:15:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-16 18:15:13,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 648. [2024-11-16 18:15:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 557 states have (on average 1.1579892280071813) internal successors, (645), 561 states have internal predecessors, (645), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:13,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 785 transitions. [2024-11-16 18:15:13,375 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 785 transitions. Word has length 124 [2024-11-16 18:15:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:13,375 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 785 transitions. [2024-11-16 18:15:13,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 785 transitions. [2024-11-16 18:15:13,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 18:15:13,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:13,376 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:13,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:15:13,376 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:13,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:13,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1986986124, now seen corresponding path program 1 times [2024-11-16 18:15:13,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:13,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736313861] [2024-11-16 18:15:13,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:13,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:13,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:13,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736313861] [2024-11-16 18:15:13,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736313861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:13,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:13,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:15:13,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124402115] [2024-11-16 18:15:13,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:13,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:15:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:15:13,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:13,543 INFO L87 Difference]: Start difference. First operand 648 states and 785 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:13,739 INFO L93 Difference]: Finished difference Result 1454 states and 1761 transitions. [2024-11-16 18:15:13,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:15:13,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-16 18:15:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:13,742 INFO L225 Difference]: With dead ends: 1454 [2024-11-16 18:15:13,742 INFO L226 Difference]: Without dead ends: 809 [2024-11-16 18:15:13,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:13,744 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 49 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:13,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 441 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:13,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-16 18:15:13,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 654. [2024-11-16 18:15:13,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 563 states have (on average 1.1563055062166963) internal successors, (651), 567 states have internal predecessors, (651), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 791 transitions. [2024-11-16 18:15:13,804 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 791 transitions. Word has length 129 [2024-11-16 18:15:13,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:13,805 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 791 transitions. [2024-11-16 18:15:13,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 791 transitions. [2024-11-16 18:15:13,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 18:15:13,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:13,806 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:13,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:15:13,806 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:13,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:13,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1693583117, now seen corresponding path program 1 times [2024-11-16 18:15:13,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:13,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693354403] [2024-11-16 18:15:13,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:13,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:13,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693354403] [2024-11-16 18:15:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693354403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:13,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:13,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964564145] [2024-11-16 18:15:13,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:13,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:13,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:13,989 INFO L87 Difference]: Start difference. First operand 654 states and 791 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:14,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:14,114 INFO L93 Difference]: Finished difference Result 1422 states and 1713 transitions. [2024-11-16 18:15:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-11-16 18:15:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:14,117 INFO L225 Difference]: With dead ends: 1422 [2024-11-16 18:15:14,117 INFO L226 Difference]: Without dead ends: 771 [2024-11-16 18:15:14,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:14,119 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 39 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:14,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 684 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-16 18:15:14,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 648. [2024-11-16 18:15:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 557 states have (on average 1.1364452423698383) internal successors, (633), 561 states have internal predecessors, (633), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 773 transitions. [2024-11-16 18:15:14,182 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 773 transitions. Word has length 129 [2024-11-16 18:15:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:14,182 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 773 transitions. [2024-11-16 18:15:14,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 773 transitions. [2024-11-16 18:15:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 18:15:14,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:14,183 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:14,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:15:14,184 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:14,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1245087345, now seen corresponding path program 1 times [2024-11-16 18:15:14,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:14,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191418026] [2024-11-16 18:15:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:14,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:14,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191418026] [2024-11-16 18:15:14,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191418026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:14,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:14,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:15:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811219369] [2024-11-16 18:15:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:14,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:15:14,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:14,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:15:14,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:15:14,497 INFO L87 Difference]: Start difference. First operand 648 states and 773 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:14,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:14,778 INFO L93 Difference]: Finished difference Result 1355 states and 1609 transitions. [2024-11-16 18:15:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:15:14,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2024-11-16 18:15:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:14,781 INFO L225 Difference]: With dead ends: 1355 [2024-11-16 18:15:14,781 INFO L226 Difference]: Without dead ends: 710 [2024-11-16 18:15:14,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:15:14,782 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 36 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:14,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 535 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-16 18:15:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 648. [2024-11-16 18:15:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 557 states have (on average 1.125673249551167) internal successors, (627), 561 states have internal predecessors, (627), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 767 transitions. [2024-11-16 18:15:14,843 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 767 transitions. Word has length 129 [2024-11-16 18:15:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:14,843 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 767 transitions. [2024-11-16 18:15:14,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 18:15:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 767 transitions. [2024-11-16 18:15:14,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:15:14,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:14,845 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:14,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:15:14,845 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:14,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:14,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1390536489, now seen corresponding path program 1 times [2024-11-16 18:15:14,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:14,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600557906] [2024-11-16 18:15:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:15,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600557906] [2024-11-16 18:15:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600557906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:15,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:15,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 18:15:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158612763] [2024-11-16 18:15:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:15,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 18:15:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 18:15:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:15:15,857 INFO L87 Difference]: Start difference. First operand 648 states and 767 transitions. Second operand has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:16,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:16,933 INFO L93 Difference]: Finished difference Result 1648 states and 1939 transitions. [2024-11-16 18:15:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:15:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 134 [2024-11-16 18:15:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:16,938 INFO L225 Difference]: With dead ends: 1648 [2024-11-16 18:15:16,938 INFO L226 Difference]: Without dead ends: 1003 [2024-11-16 18:15:16,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:15:16,939 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 76 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:16,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 1638 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:15:16,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-16 18:15:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 785. [2024-11-16 18:15:17,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 694 states have (on average 1.1253602305475505) internal successors, (781), 698 states have internal predecessors, (781), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:17,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 921 transitions. [2024-11-16 18:15:17,039 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 921 transitions. Word has length 134 [2024-11-16 18:15:17,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:17,039 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 921 transitions. [2024-11-16 18:15:17,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.133333333333334) internal successors, (62), 17 states have internal predecessors, (62), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 921 transitions. [2024-11-16 18:15:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:15:17,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:17,040 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:17,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 18:15:17,041 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:17,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:17,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1896095114, now seen corresponding path program 1 times [2024-11-16 18:15:17,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:17,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324241243] [2024-11-16 18:15:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:17,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:17,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324241243] [2024-11-16 18:15:17,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324241243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:17,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:17,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:15:17,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506091063] [2024-11-16 18:15:17,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:17,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:15:17,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:17,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:15:17,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:17,190 INFO L87 Difference]: Start difference. First operand 785 states and 921 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:17,363 INFO L93 Difference]: Finished difference Result 1542 states and 1808 transitions. [2024-11-16 18:15:17,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:17,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 134 [2024-11-16 18:15:17,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:17,366 INFO L225 Difference]: With dead ends: 1542 [2024-11-16 18:15:17,366 INFO L226 Difference]: Without dead ends: 760 [2024-11-16 18:15:17,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:17,367 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 85 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:17,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 522 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-16 18:15:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 757. [2024-11-16 18:15:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 666 states have (on average 1.1141141141141142) internal successors, (742), 670 states have internal predecessors, (742), 70 states have call successors, (70), 20 states have call predecessors, (70), 20 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-16 18:15:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 882 transitions. [2024-11-16 18:15:17,455 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 882 transitions. Word has length 134 [2024-11-16 18:15:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:17,455 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 882 transitions. [2024-11-16 18:15:17,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:17,455 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 882 transitions. [2024-11-16 18:15:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-16 18:15:17,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:17,456 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:17,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 18:15:17,456 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:17,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1645273034, now seen corresponding path program 1 times [2024-11-16 18:15:17,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:17,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669720109] [2024-11-16 18:15:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:17,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:18,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:18,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669720109] [2024-11-16 18:15:18,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669720109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:18,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:18,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:15:18,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256654474] [2024-11-16 18:15:18,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:18,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:15:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:15:18,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:15:18,227 INFO L87 Difference]: Start difference. First operand 757 states and 882 transitions. Second operand has 14 states, 10 states have (on average 6.2) internal successors, (62), 14 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-16 18:15:19,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:19,321 INFO L93 Difference]: Finished difference Result 1611 states and 1871 transitions. [2024-11-16 18:15:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:15:19,322 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 6.2) internal successors, (62), 14 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 5 states have call successors, (15) Word has length 134 [2024-11-16 18:15:19,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:19,325 INFO L225 Difference]: With dead ends: 1611 [2024-11-16 18:15:19,325 INFO L226 Difference]: Without dead ends: 857 [2024-11-16 18:15:19,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-16 18:15:19,326 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 192 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:19,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1261 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:15:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2024-11-16 18:15:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 783. [2024-11-16 18:15:19,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 677 states have (on average 1.1078286558345642) internal successors, (750), 682 states have internal predecessors, (750), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 912 transitions. [2024-11-16 18:15:19,429 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 912 transitions. Word has length 134 [2024-11-16 18:15:19,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:19,429 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 912 transitions. [2024-11-16 18:15:19,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 6.2) internal successors, (62), 14 states have internal predecessors, (62), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-16 18:15:19,429 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 912 transitions. [2024-11-16 18:15:19,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:19,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:19,430 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:19,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 18:15:19,430 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash 587780697, now seen corresponding path program 1 times [2024-11-16 18:15:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:19,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428155442] [2024-11-16 18:15:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:19,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:19,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428155442] [2024-11-16 18:15:19,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428155442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:19,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:19,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:19,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793084914] [2024-11-16 18:15:19,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:19,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:19,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:19,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:19,637 INFO L87 Difference]: Start difference. First operand 783 states and 912 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:20,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:20,041 INFO L93 Difference]: Finished difference Result 2152 states and 2492 transitions. [2024-11-16 18:15:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:20,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-16 18:15:20,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:20,046 INFO L225 Difference]: With dead ends: 2152 [2024-11-16 18:15:20,046 INFO L226 Difference]: Without dead ends: 1372 [2024-11-16 18:15:20,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:20,047 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 64 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:20,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 525 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2024-11-16 18:15:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 879. [2024-11-16 18:15:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 773 states have (on average 1.1060802069857698) internal successors, (855), 778 states have internal predecessors, (855), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:20,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1017 transitions. [2024-11-16 18:15:20,162 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1017 transitions. Word has length 135 [2024-11-16 18:15:20,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:20,162 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1017 transitions. [2024-11-16 18:15:20,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:20,162 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1017 transitions. [2024-11-16 18:15:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:20,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:20,163 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:20,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 18:15:20,164 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:20,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:20,164 INFO L85 PathProgramCache]: Analyzing trace with hash 838602777, now seen corresponding path program 1 times [2024-11-16 18:15:20,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:20,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643582669] [2024-11-16 18:15:20,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:20,356 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:20,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:20,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643582669] [2024-11-16 18:15:20,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643582669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:20,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:20,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:20,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883082642] [2024-11-16 18:15:20,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:20,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:20,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:20,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:20,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:20,357 INFO L87 Difference]: Start difference. First operand 879 states and 1017 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:20,791 INFO L93 Difference]: Finished difference Result 1922 states and 2222 transitions. [2024-11-16 18:15:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:20,792 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-16 18:15:20,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:20,795 INFO L225 Difference]: With dead ends: 1922 [2024-11-16 18:15:20,795 INFO L226 Difference]: Without dead ends: 1046 [2024-11-16 18:15:20,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:20,796 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 72 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:20,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 530 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:15:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-16 18:15:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 859. [2024-11-16 18:15:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 753 states have (on average 1.100929614873838) internal successors, (829), 758 states have internal predecessors, (829), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 991 transitions. [2024-11-16 18:15:20,907 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 991 transitions. Word has length 135 [2024-11-16 18:15:20,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:20,907 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 991 transitions. [2024-11-16 18:15:20,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 991 transitions. [2024-11-16 18:15:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:20,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:20,908 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:20,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 18:15:20,908 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:20,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash 599096824, now seen corresponding path program 1 times [2024-11-16 18:15:20,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:20,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362238443] [2024-11-16 18:15:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362238443] [2024-11-16 18:15:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362238443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:21,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:21,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:15:21,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001745538] [2024-11-16 18:15:21,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:15:21,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:21,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:15:21,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:15:21,562 INFO L87 Difference]: Start difference. First operand 859 states and 991 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:22,618 INFO L93 Difference]: Finished difference Result 1946 states and 2236 transitions. [2024-11-16 18:15:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:15:22,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2024-11-16 18:15:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:22,624 INFO L225 Difference]: With dead ends: 1946 [2024-11-16 18:15:22,624 INFO L226 Difference]: Without dead ends: 1090 [2024-11-16 18:15:22,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2024-11-16 18:15:22,628 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 238 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:22,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 945 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:15:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-16 18:15:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 854. [2024-11-16 18:15:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 748 states have (on average 1.1002673796791445) internal successors, (823), 753 states have internal predecessors, (823), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 985 transitions. [2024-11-16 18:15:22,751 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 985 transitions. Word has length 135 [2024-11-16 18:15:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:22,751 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 985 transitions. [2024-11-16 18:15:22,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 13 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 985 transitions. [2024-11-16 18:15:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:22,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:22,753 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:22,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 18:15:22,754 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:22,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 849918904, now seen corresponding path program 1 times [2024-11-16 18:15:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777292963] [2024-11-16 18:15:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:23,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777292963] [2024-11-16 18:15:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777292963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:23,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:23,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:15:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459920137] [2024-11-16 18:15:23,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:23,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:15:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:23,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:15:23,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:15:23,541 INFO L87 Difference]: Start difference. First operand 854 states and 985 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:24,622 INFO L93 Difference]: Finished difference Result 1908 states and 2191 transitions. [2024-11-16 18:15:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:15:24,623 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2024-11-16 18:15:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:24,626 INFO L225 Difference]: With dead ends: 1908 [2024-11-16 18:15:24,626 INFO L226 Difference]: Without dead ends: 1057 [2024-11-16 18:15:24,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-16 18:15:24,628 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 225 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 1237 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:24,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1000 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1237 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:15:24,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-16 18:15:24,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 861. [2024-11-16 18:15:24,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 755 states have (on average 1.099337748344371) internal successors, (830), 760 states have internal predecessors, (830), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 992 transitions. [2024-11-16 18:15:24,742 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 992 transitions. Word has length 135 [2024-11-16 18:15:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:24,742 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 992 transitions. [2024-11-16 18:15:24,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-16 18:15:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 992 transitions. [2024-11-16 18:15:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:24,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:24,743 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:24,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 18:15:24,743 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:24,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:24,744 INFO L85 PathProgramCache]: Analyzing trace with hash 339384727, now seen corresponding path program 1 times [2024-11-16 18:15:24,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:24,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667776801] [2024-11-16 18:15:24,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:24,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:24,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667776801] [2024-11-16 18:15:24,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667776801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:24,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:24,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:24,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137451378] [2024-11-16 18:15:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:24,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:24,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:24,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:24,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:24,947 INFO L87 Difference]: Start difference. First operand 861 states and 992 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:25,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:25,286 INFO L93 Difference]: Finished difference Result 1810 states and 2084 transitions. [2024-11-16 18:15:25,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:25,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-16 18:15:25,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:25,289 INFO L225 Difference]: With dead ends: 1810 [2024-11-16 18:15:25,290 INFO L226 Difference]: Without dead ends: 869 [2024-11-16 18:15:25,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:25,291 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 66 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:25,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 451 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:25,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2024-11-16 18:15:25,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 709. [2024-11-16 18:15:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 603 states have (on average 1.0812603648424544) internal successors, (652), 608 states have internal predecessors, (652), 81 states have call successors, (81), 24 states have call predecessors, (81), 24 states have return successors, (81), 76 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-16 18:15:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 814 transitions. [2024-11-16 18:15:25,406 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 814 transitions. Word has length 135 [2024-11-16 18:15:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:25,407 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 814 transitions. [2024-11-16 18:15:25,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 814 transitions. [2024-11-16 18:15:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:25,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:25,408 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:25,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 18:15:25,408 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:25,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash -166173898, now seen corresponding path program 1 times [2024-11-16 18:15:25,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:25,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639061135] [2024-11-16 18:15:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-16 18:15:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639061135] [2024-11-16 18:15:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639061135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586130744] [2024-11-16 18:15:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:25,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:25,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:25,943 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) [2024-11-16 18:15:25,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 18:15:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:26,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-16 18:15:26,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:15:26,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-16 18:15:26,138 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 19 treesize of output 1 [2024-11-16 18:15:26,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2024-11-16 18:15:26,276 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 68 treesize of output 38 [2024-11-16 18:15:26,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:26,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 24 [2024-11-16 18:15:26,524 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 92 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-16 18:15:26,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:15:26,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2024-11-16 18:15:26,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586130744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:26,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-16 18:15:26,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 21 [2024-11-16 18:15:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670933635] [2024-11-16 18:15:26,984 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-16 18:15:26,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 18:15:26,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 18:15:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-16 18:15:26,986 INFO L87 Difference]: Start difference. First operand 709 states and 814 transitions. Second operand has 21 states, 17 states have (on average 6.823529411764706) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 4 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-16 18:15:30,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:30,380 INFO L93 Difference]: Finished difference Result 1946 states and 2219 transitions. [2024-11-16 18:15:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-16 18:15:30,380 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 6.823529411764706) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 4 states have call predecessors, (30), 7 states have call successors, (30) Word has length 135 [2024-11-16 18:15:30,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:30,384 INFO L225 Difference]: With dead ends: 1946 [2024-11-16 18:15:30,385 INFO L226 Difference]: Without dead ends: 1224 [2024-11-16 18:15:30,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1517 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=983, Invalid=4869, Unknown=0, NotChecked=0, Total=5852 [2024-11-16 18:15:30,387 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 692 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:30,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1196 Invalid, 2881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 18:15:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-16 18:15:30,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1155. [2024-11-16 18:15:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 929 states have (on average 1.0602798708288481) internal successors, (985), 940 states have internal predecessors, (985), 166 states have call successors, (166), 59 states have call predecessors, (166), 59 states have return successors, (166), 155 states have call predecessors, (166), 166 states have call successors, (166) [2024-11-16 18:15:30,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1317 transitions. [2024-11-16 18:15:30,668 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1317 transitions. Word has length 135 [2024-11-16 18:15:30,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:30,668 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1317 transitions. [2024-11-16 18:15:30,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 6.823529411764706) internal successors, (116), 21 states have internal predecessors, (116), 7 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (30), 4 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-16 18:15:30,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1317 transitions. [2024-11-16 18:15:30,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:30,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:30,669 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:30,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 18:15:30,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:30,870 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:30,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:30,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2063066473, now seen corresponding path program 1 times [2024-11-16 18:15:30,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:30,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68363995] [2024-11-16 18:15:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:30,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:31,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68363995] [2024-11-16 18:15:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68363995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:31,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:31,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:15:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481711492] [2024-11-16 18:15:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:31,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:15:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:31,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:15:31,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:31,139 INFO L87 Difference]: Start difference. First operand 1155 states and 1317 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:31,820 INFO L93 Difference]: Finished difference Result 2586 states and 2948 transitions. [2024-11-16 18:15:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:15:31,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-16 18:15:31,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:31,825 INFO L225 Difference]: With dead ends: 2586 [2024-11-16 18:15:31,825 INFO L226 Difference]: Without dead ends: 1434 [2024-11-16 18:15:31,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:31,827 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 121 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:31,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 605 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:15:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2024-11-16 18:15:32,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1382. [2024-11-16 18:15:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1120 states have (on average 1.0625) internal successors, (1190), 1132 states have internal predecessors, (1190), 192 states have call successors, (192), 69 states have call predecessors, (192), 69 states have return successors, (192), 180 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-16 18:15:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1574 transitions. [2024-11-16 18:15:32,139 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1574 transitions. Word has length 135 [2024-11-16 18:15:32,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:32,139 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1574 transitions. [2024-11-16 18:15:32,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1574 transitions. [2024-11-16 18:15:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:32,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:32,140 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:32,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 18:15:32,140 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:32,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1977164278, now seen corresponding path program 1 times [2024-11-16 18:15:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397390862] [2024-11-16 18:15:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-16 18:15:32,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:32,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397390862] [2024-11-16 18:15:32,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397390862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:32,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:32,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:32,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762586109] [2024-11-16 18:15:32,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:32,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:32,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:32,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:32,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:32,328 INFO L87 Difference]: Start difference. First operand 1382 states and 1574 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:32,871 INFO L93 Difference]: Finished difference Result 2859 states and 3257 transitions. [2024-11-16 18:15:32,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:32,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 135 [2024-11-16 18:15:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:32,876 INFO L225 Difference]: With dead ends: 2859 [2024-11-16 18:15:32,876 INFO L226 Difference]: Without dead ends: 1480 [2024-11-16 18:15:32,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:32,878 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 62 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:32,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 395 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-11-16 18:15:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1382. [2024-11-16 18:15:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1120 states have (on average 1.0607142857142857) internal successors, (1188), 1132 states have internal predecessors, (1188), 192 states have call successors, (192), 69 states have call predecessors, (192), 69 states have return successors, (192), 180 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-16 18:15:33,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1572 transitions. [2024-11-16 18:15:33,205 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1572 transitions. Word has length 135 [2024-11-16 18:15:33,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:33,206 INFO L471 AbstractCegarLoop]: Abstraction has 1382 states and 1572 transitions. [2024-11-16 18:15:33,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-16 18:15:33,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1572 transitions. [2024-11-16 18:15:33,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 18:15:33,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:33,206 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:33,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 18:15:33,207 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:33,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1466630101, now seen corresponding path program 1 times [2024-11-16 18:15:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:33,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386553051] [2024-11-16 18:15:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:33,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat