./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.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-66.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 d3f6bd0cc41c3fb11f5cfcc3010a6654288179c0475495df5b9f3093567937e2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:15:27,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:15:27,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:15:27,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:15:27,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:15:27,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:15:27,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:15:27,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:15:27,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:15:27,223 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:15:27,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:15:27,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:15:27,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:15:27,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:15:27,225 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:15:27,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:15:27,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:15:27,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:15:27,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:15:27,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:15:27,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:15:27,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:15:27,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:15:27,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:15:27,228 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:15:27,228 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:15:27,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:15:27,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:15:27,229 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:15:27,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:15:27,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:15:27,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:15:27,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:15:27,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:15:27,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:15:27,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:15:27,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:15:27,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:15:27,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:15:27,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:15:27,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:15:27,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:15:27,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3f6bd0cc41c3fb11f5cfcc3010a6654288179c0475495df5b9f3093567937e2 [2024-11-16 18:15:27,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:15:27,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:15:27,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:15:27,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:15:27,525 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:15:27,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i [2024-11-16 18:15:28,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:15:29,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:15:29,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-66.i [2024-11-16 18:15:29,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d0a1232/de4599822c754437a76b2cc1cc548ceb/FLAG846501f89 [2024-11-16 18:15:29,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d0a1232/de4599822c754437a76b2cc1cc548ceb [2024-11-16 18:15:29,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:15:29,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:15:29,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:15:29,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:15:29,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:15:29,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d5f5dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29, skipping insertion in model container [2024-11-16 18:15:29,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:15:29,463 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-66.i[916,929] [2024-11-16 18:15:29,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:15:29,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:15:29,551 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-66.i[916,929] [2024-11-16 18:15:29,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:15:29,622 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:15:29,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29 WrapperNode [2024-11-16 18:15:29,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:15:29,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:15:29,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:15:29,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:15:29,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,687 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 433 [2024-11-16 18:15:29,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:15:29,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:15:29,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:15:29,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:15:29,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,726 INFO L175 MemorySlicer]: Split 123 memory accesses to 6 slices as follows [2, 8, 8, 73, 7, 25]. 59 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 6, 1, 3]. The 16 writes are split as follows [0, 1, 3, 7, 1, 4]. [2024-11-16 18:15:29,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,749 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:15:29,775 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:15:29,775 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:15:29,775 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:15:29,776 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (1/1) ... [2024-11-16 18:15:29,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:15:29,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:29,816 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 18:15:29,820 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 18:15:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:15:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:15:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:15:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:15:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:15:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:15:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:15:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:15:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:15:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:15:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:15:29,989 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:15:29,991 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:15:30,448 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: havoc property_#t~mem65#1;havoc property_#t~mem66#1;havoc property_#t~ite76#1;havoc property_#t~mem72#1;havoc property_#t~mem71#1;havoc property_#t~mem67#1;havoc property_#t~mem68#1;havoc property_#t~mem69#1;havoc property_#t~mem70#1;havoc property_#t~mem75#1;havoc property_#t~mem73#1;havoc property_#t~mem74#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~short79#1;havoc property_#t~ite100#1;havoc property_#t~mem80#1;havoc property_#t~ite99#1;havoc property_#t~mem82#1;havoc property_#t~mem81#1;havoc property_#t~mem98#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite89#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~ite97#1;havoc property_#t~mem90#1;havoc property_#t~mem91#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~short101#1;havoc property_#t~mem102#1;havoc property_#t~mem103#1;havoc property_#t~ite114#1;havoc property_#t~mem105#1;havoc property_#t~mem104#1;havoc property_#t~mem107#1;havoc property_#t~mem106#1;havoc property_#t~short108#1;havoc property_#t~ite113#1;havoc property_#t~mem110#1;havoc property_#t~mem109#1;havoc property_#t~mem112#1;havoc property_#t~mem111#1;havoc property_#t~short115#1;havoc property_#t~mem117#1;havoc property_#t~mem116#1;havoc property_#t~short118#1;havoc property_#t~mem120#1;havoc property_#t~mem119#1;havoc property_#t~short121#1; [2024-11-16 18:15:30,483 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-16 18:15:30,483 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:15:30,502 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:15:30,502 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:15:30,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:15:30 BoogieIcfgContainer [2024-11-16 18:15:30,503 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:15:30,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:15:30,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:15:30,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:15:30,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:15:29" (1/3) ... [2024-11-16 18:15:30,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e2e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:15:30, skipping insertion in model container [2024-11-16 18:15:30,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:29" (2/3) ... [2024-11-16 18:15:30,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e2e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:15:30, skipping insertion in model container [2024-11-16 18:15:30,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:15:30" (3/3) ... [2024-11-16 18:15:30,514 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-66.i [2024-11-16 18:15:30,553 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:15:30,553 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:15:30,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:15:30,619 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;@67828e4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:15:30,620 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:15:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:15:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:15:30,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:30,641 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:30,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:30,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:30,648 INFO L85 PathProgramCache]: Analyzing trace with hash 2144468470, now seen corresponding path program 1 times [2024-11-16 18:15:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:30,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739169053] [2024-11-16 18:15:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:30,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:30,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:30,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:31,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739169053] [2024-11-16 18:15:31,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739169053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:31,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:31,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:15:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945787400] [2024-11-16 18:15:31,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:31,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:15:31,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:15:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:15:31,130 INFO L87 Difference]: Start difference. First operand has 89 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:31,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:31,163 INFO L93 Difference]: Finished difference Result 170 states and 263 transitions. [2024-11-16 18:15:31,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:15:31,165 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-16 18:15:31,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:31,174 INFO L225 Difference]: With dead ends: 170 [2024-11-16 18:15:31,174 INFO L226 Difference]: Without dead ends: 84 [2024-11-16 18:15:31,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 18:15:31,180 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 18:15:31,181 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 18:15:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-16 18:15:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-16 18:15:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:15:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-16 18:15:31,222 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 111 [2024-11-16 18:15:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:31,223 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-16 18:15:31,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-16 18:15:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:15:31,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:31,226 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:31,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:15:31,227 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:31,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1873624124, now seen corresponding path program 1 times [2024-11-16 18:15:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:31,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590026252] [2024-11-16 18:15:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:31,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:31,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590026252] [2024-11-16 18:15:31,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590026252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:31,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:31,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:31,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500792524] [2024-11-16 18:15:31,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:31,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:31,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:31,620 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:31,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:31,677 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-16 18:15:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:31,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-16 18:15:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:31,680 INFO L225 Difference]: With dead ends: 168 [2024-11-16 18:15:31,682 INFO L226 Difference]: Without dead ends: 87 [2024-11-16 18:15:31,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 18:15:31,684 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:31,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 340 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-16 18:15:31,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-16 18:15:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:15:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-16 18:15:31,705 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 111 [2024-11-16 18:15:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:31,707 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-16 18:15:31,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:31,708 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-16 18:15:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:15:31,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:31,711 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:31,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:15:31,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:31,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash -130813789, now seen corresponding path program 1 times [2024-11-16 18:15:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388611783] [2024-11-16 18:15:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:31,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:32,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388611783] [2024-11-16 18:15:32,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388611783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:32,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:32,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:32,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920876686] [2024-11-16 18:15:32,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:32,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:32,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:32,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:32,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:32,005 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:32,035 INFO L93 Difference]: Finished difference Result 172 states and 245 transitions. [2024-11-16 18:15:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-16 18:15:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:32,037 INFO L225 Difference]: With dead ends: 172 [2024-11-16 18:15:32,038 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 18:15:32,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 18:15:32,040 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:32,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 18:15:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-16 18:15:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-16 18:15:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2024-11-16 18:15:32,056 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 111 [2024-11-16 18:15:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:32,057 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2024-11-16 18:15:32,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2024-11-16 18:15:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 18:15:32,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:32,062 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:32,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:15:32,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:32,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:32,063 INFO L85 PathProgramCache]: Analyzing trace with hash -102184638, now seen corresponding path program 1 times [2024-11-16 18:15:32,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:32,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837045176] [2024-11-16 18:15:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:32,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:32,822 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837045176] [2024-11-16 18:15:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837045176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:32,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042900258] [2024-11-16 18:15:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:32,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:32,828 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:33,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:33,062 INFO L93 Difference]: Finished difference Result 258 states and 366 transitions. [2024-11-16 18:15:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:33,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-16 18:15:33,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:33,065 INFO L225 Difference]: With dead ends: 258 [2024-11-16 18:15:33,068 INFO L226 Difference]: Without dead ends: 173 [2024-11-16 18:15:33,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:33,069 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 78 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:33,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 254 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-16 18:15:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2024-11-16 18:15:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 133 states have (on average 1.3233082706766917) internal successors, (176), 133 states have internal predecessors, (176), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-16 18:15:33,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 232 transitions. [2024-11-16 18:15:33,098 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 232 transitions. Word has length 111 [2024-11-16 18:15:33,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:33,101 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 232 transitions. [2024-11-16 18:15:33,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 232 transitions. [2024-11-16 18:15:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 18:15:33,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:33,106 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:33,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:15:33,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:33,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash 243745555, now seen corresponding path program 1 times [2024-11-16 18:15:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:33,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287010013] [2024-11-16 18:15:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:34,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:34,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:35,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:35,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287010013] [2024-11-16 18:15:35,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287010013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:35,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:35,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:15:35,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72877314] [2024-11-16 18:15:35,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:35,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:15:35,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:15:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:15:35,021 INFO L87 Difference]: Start difference. First operand 164 states and 232 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:15:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:35,579 INFO L93 Difference]: Finished difference Result 468 states and 662 transitions. [2024-11-16 18:15:35,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:15:35,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2024-11-16 18:15:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:35,582 INFO L225 Difference]: With dead ends: 468 [2024-11-16 18:15:35,583 INFO L226 Difference]: Without dead ends: 307 [2024-11-16 18:15:35,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:15:35,587 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 86 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:35,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 604 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:15:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-16 18:15:35,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 302. [2024-11-16 18:15:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 247 states have internal predecessors, (323), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-16 18:15:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 427 transitions. [2024-11-16 18:15:35,647 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 427 transitions. Word has length 112 [2024-11-16 18:15:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:35,649 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 427 transitions. [2024-11-16 18:15:35,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:15:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 427 transitions. [2024-11-16 18:15:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 18:15:35,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:35,654 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:35,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:15:35,654 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:35,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:35,655 INFO L85 PathProgramCache]: Analyzing trace with hash -261813070, now seen corresponding path program 1 times [2024-11-16 18:15:35,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:35,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848067362] [2024-11-16 18:15:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:35,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:36,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:36,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848067362] [2024-11-16 18:15:36,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848067362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:36,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:36,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:15:36,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551438344] [2024-11-16 18:15:36,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:36,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:15:36,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:36,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:15:36,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:36,603 INFO L87 Difference]: Start difference. First operand 302 states and 427 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:37,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:37,705 INFO L93 Difference]: Finished difference Result 744 states and 1026 transitions. [2024-11-16 18:15:37,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:15:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2024-11-16 18:15:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:37,710 INFO L225 Difference]: With dead ends: 744 [2024-11-16 18:15:37,711 INFO L226 Difference]: Without dead ends: 445 [2024-11-16 18:15:37,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2024-11-16 18:15:37,713 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 365 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:37,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 672 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:15:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-16 18:15:37,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 358. [2024-11-16 18:15:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 279 states have (on average 1.2652329749103943) internal successors, (353), 282 states have internal predecessors, (353), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 65 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-16 18:15:37,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 489 transitions. [2024-11-16 18:15:37,769 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 489 transitions. Word has length 112 [2024-11-16 18:15:37,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:37,769 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 489 transitions. [2024-11-16 18:15:37,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 489 transitions. [2024-11-16 18:15:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 18:15:37,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:37,771 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:37,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:15:37,772 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:37,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1114336158, now seen corresponding path program 1 times [2024-11-16 18:15:37,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:37,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740722852] [2024-11-16 18:15:37,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:37,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:38,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740722852] [2024-11-16 18:15:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740722852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:38,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464423800] [2024-11-16 18:15:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:38,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:38,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:38,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:38,211 INFO L87 Difference]: Start difference. First operand 358 states and 489 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:38,407 INFO L93 Difference]: Finished difference Result 621 states and 845 transitions. [2024-11-16 18:15:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:38,408 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 113 [2024-11-16 18:15:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:38,410 INFO L225 Difference]: With dead ends: 621 [2024-11-16 18:15:38,410 INFO L226 Difference]: Without dead ends: 292 [2024-11-16 18:15:38,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:38,412 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 77 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:38,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 251 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-16 18:15:38,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 283. [2024-11-16 18:15:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 222 states have internal predecessors, (276), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:15:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 384 transitions. [2024-11-16 18:15:38,446 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 384 transitions. Word has length 113 [2024-11-16 18:15:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:38,447 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 384 transitions. [2024-11-16 18:15:38,447 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 384 transitions. [2024-11-16 18:15:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:15:38,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:38,449 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:38,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:15:38,449 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:38,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash -346839861, now seen corresponding path program 1 times [2024-11-16 18:15:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734216428] [2024-11-16 18:15:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:38,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:38,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734216428] [2024-11-16 18:15:38,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734216428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:38,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:38,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:15:38,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90563493] [2024-11-16 18:15:38,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:38,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:15:38,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:38,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:15:38,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:38,633 INFO L87 Difference]: Start difference. First operand 283 states and 384 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:38,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:38,687 INFO L93 Difference]: Finished difference Result 546 states and 739 transitions. [2024-11-16 18:15:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:15:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-16 18:15:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:38,690 INFO L225 Difference]: With dead ends: 546 [2024-11-16 18:15:38,690 INFO L226 Difference]: Without dead ends: 292 [2024-11-16 18:15:38,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:38,691 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:38,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 451 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-16 18:15:38,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-16 18:15:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 229 states have (on average 1.244541484716157) internal successors, (285), 231 states have internal predecessors, (285), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-16 18:15:38,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 393 transitions. [2024-11-16 18:15:38,728 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 393 transitions. Word has length 115 [2024-11-16 18:15:38,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:38,728 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 393 transitions. [2024-11-16 18:15:38,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 393 transitions. [2024-11-16 18:15:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:15:38,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:38,730 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:38,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:15:38,730 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:38,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1455267845, now seen corresponding path program 1 times [2024-11-16 18:15:38,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:38,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151571972] [2024-11-16 18:15:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:38,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:39,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151571972] [2024-11-16 18:15:39,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151571972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:39,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:39,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:15:39,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630635872] [2024-11-16 18:15:39,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:39,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:39,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:15:39,394 INFO L87 Difference]: Start difference. First operand 292 states and 393 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:40,160 INFO L93 Difference]: Finished difference Result 654 states and 876 transitions. [2024-11-16 18:15:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:15:40,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-11-16 18:15:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:40,164 INFO L225 Difference]: With dead ends: 654 [2024-11-16 18:15:40,164 INFO L226 Difference]: Without dead ends: 478 [2024-11-16 18:15:40,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:15:40,165 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 428 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:40,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 623 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:15:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-16 18:15:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 312. [2024-11-16 18:15:40,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 246 states have (on average 1.2520325203252032) internal successors, (308), 248 states have internal predecessors, (308), 56 states have call successors, (56), 9 states have call predecessors, (56), 9 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 420 transitions. [2024-11-16 18:15:40,220 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 420 transitions. Word has length 115 [2024-11-16 18:15:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:40,220 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 420 transitions. [2024-11-16 18:15:40,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:40,221 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 420 transitions. [2024-11-16 18:15:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:15:40,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:40,223 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:40,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:15:40,224 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:40,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:40,224 INFO L85 PathProgramCache]: Analyzing trace with hash 949709220, now seen corresponding path program 1 times [2024-11-16 18:15:40,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:40,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671160938] [2024-11-16 18:15:40,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:40,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:40,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671160938] [2024-11-16 18:15:40,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671160938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:40,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:40,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:40,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702783190] [2024-11-16 18:15:40,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:40,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:40,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:40,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:40,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:40,835 INFO L87 Difference]: Start difference. First operand 312 states and 420 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:41,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:41,016 INFO L93 Difference]: Finished difference Result 509 states and 684 transitions. [2024-11-16 18:15:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:41,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-16 18:15:41,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:41,018 INFO L225 Difference]: With dead ends: 509 [2024-11-16 18:15:41,019 INFO L226 Difference]: Without dead ends: 321 [2024-11-16 18:15:41,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:15:41,020 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 87 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:41,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 779 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-16 18:15:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 318. [2024-11-16 18:15:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 251 states have (on average 1.247011952191235) internal successors, (313), 253 states have internal predecessors, (313), 56 states have call successors, (56), 10 states have call predecessors, (56), 10 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 425 transitions. [2024-11-16 18:15:41,060 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 425 transitions. Word has length 115 [2024-11-16 18:15:41,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:41,060 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 425 transitions. [2024-11-16 18:15:41,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 425 transitions. [2024-11-16 18:15:41,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 18:15:41,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:41,062 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:41,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:15:41,062 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:41,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -582788444, now seen corresponding path program 1 times [2024-11-16 18:15:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:41,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035732144] [2024-11-16 18:15:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:41,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:41,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:41,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035732144] [2024-11-16 18:15:41,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035732144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:41,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:41,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:15:41,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942649109] [2024-11-16 18:15:41,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:41,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:41,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:41,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:15:41,894 INFO L87 Difference]: Start difference. First operand 318 states and 425 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:42,610 INFO L93 Difference]: Finished difference Result 515 states and 687 transitions. [2024-11-16 18:15:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:15:42,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-16 18:15:42,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:42,615 INFO L225 Difference]: With dead ends: 515 [2024-11-16 18:15:42,615 INFO L226 Difference]: Without dead ends: 321 [2024-11-16 18:15:42,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:15:42,617 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 189 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:42,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 684 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:15:42,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-16 18:15:42,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 304. [2024-11-16 18:15:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 237 states have (on average 1.2278481012658229) internal successors, (291), 239 states have internal predecessors, (291), 56 states have call successors, (56), 10 states have call predecessors, (56), 10 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 403 transitions. [2024-11-16 18:15:42,666 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 403 transitions. Word has length 115 [2024-11-16 18:15:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:42,666 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 403 transitions. [2024-11-16 18:15:42,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 403 transitions. [2024-11-16 18:15:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:15:42,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:42,668 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:42,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:15:42,668 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:42,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1010189705, now seen corresponding path program 1 times [2024-11-16 18:15:42,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:42,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796304631] [2024-11-16 18:15:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:42,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:43,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:43,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796304631] [2024-11-16 18:15:43,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796304631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:43,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:43,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:15:43,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617262375] [2024-11-16 18:15:43,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:43,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:43,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:43,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:43,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:15:43,450 INFO L87 Difference]: Start difference. First operand 304 states and 403 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:44,065 INFO L93 Difference]: Finished difference Result 718 states and 956 transitions. [2024-11-16 18:15:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:15:44,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-16 18:15:44,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:44,068 INFO L225 Difference]: With dead ends: 718 [2024-11-16 18:15:44,068 INFO L226 Difference]: Without dead ends: 451 [2024-11-16 18:15:44,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:15:44,070 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 275 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:44,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 601 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:15:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-16 18:15:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 344. [2024-11-16 18:15:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 277 states have (on average 1.2527075812274369) internal successors, (347), 279 states have internal predecessors, (347), 56 states have call successors, (56), 10 states have call predecessors, (56), 10 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 459 transitions. [2024-11-16 18:15:44,114 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 459 transitions. Word has length 117 [2024-11-16 18:15:44,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:44,115 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 459 transitions. [2024-11-16 18:15:44,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:44,115 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 459 transitions. [2024-11-16 18:15:44,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:15:44,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:44,116 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:44,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:15:44,116 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:44,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 499655528, now seen corresponding path program 1 times [2024-11-16 18:15:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367553486] [2024-11-16 18:15:44,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:44,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:44,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:44,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367553486] [2024-11-16 18:15:44,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367553486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:44,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:44,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:15:44,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329371355] [2024-11-16 18:15:44,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:44,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:15:44,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:15:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:44,551 INFO L87 Difference]: Start difference. First operand 344 states and 459 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:44,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:44,771 INFO L93 Difference]: Finished difference Result 587 states and 777 transitions. [2024-11-16 18:15:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:15:44,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-11-16 18:15:44,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:44,774 INFO L225 Difference]: With dead ends: 587 [2024-11-16 18:15:44,774 INFO L226 Difference]: Without dead ends: 407 [2024-11-16 18:15:44,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:15:44,775 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 60 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:44,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 679 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:44,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-16 18:15:44,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 361. [2024-11-16 18:15:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 293 states have (on average 1.2593856655290103) internal successors, (369), 295 states have internal predecessors, (369), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2024-11-16 18:15:44,820 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 117 [2024-11-16 18:15:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:44,821 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2024-11-16 18:15:44,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2024-11-16 18:15:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:15:44,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:44,822 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:44,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:15:44,823 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:44,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash -2119405859, now seen corresponding path program 1 times [2024-11-16 18:15:44,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:44,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729312857] [2024-11-16 18:15:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:44,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:45,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:45,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729312857] [2024-11-16 18:15:45,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729312857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:45,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:45,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:45,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580367356] [2024-11-16 18:15:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:45,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:45,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:45,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:45,122 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:45,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:45,212 INFO L93 Difference]: Finished difference Result 774 states and 1036 transitions. [2024-11-16 18:15:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:45,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-16 18:15:45,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:45,216 INFO L225 Difference]: With dead ends: 774 [2024-11-16 18:15:45,216 INFO L226 Difference]: Without dead ends: 454 [2024-11-16 18:15:45,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 18:15:45,218 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 100 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:45,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 485 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-16 18:15:45,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 383. [2024-11-16 18:15:45,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 315 states have (on average 1.2666666666666666) internal successors, (399), 317 states have internal predecessors, (399), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 511 transitions. [2024-11-16 18:15:45,283 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 511 transitions. Word has length 118 [2024-11-16 18:15:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:45,283 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 511 transitions. [2024-11-16 18:15:45,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 511 transitions. [2024-11-16 18:15:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:15:45,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:45,285 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:45,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:15:45,285 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash -411303837, now seen corresponding path program 1 times [2024-11-16 18:15:45,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485128251] [2024-11-16 18:15:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:45,682 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:45,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:45,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485128251] [2024-11-16 18:15:45,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485128251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:45,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:45,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:45,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864212541] [2024-11-16 18:15:45,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:45,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:45,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:45,685 INFO L87 Difference]: Start difference. First operand 383 states and 511 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:45,856 INFO L93 Difference]: Finished difference Result 728 states and 971 transitions. [2024-11-16 18:15:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:45,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-11-16 18:15:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:45,859 INFO L225 Difference]: With dead ends: 728 [2024-11-16 18:15:45,859 INFO L226 Difference]: Without dead ends: 386 [2024-11-16 18:15:45,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:45,862 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 63 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:45,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 271 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:45,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-16 18:15:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 383. [2024-11-16 18:15:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 315 states have (on average 1.2634920634920634) internal successors, (398), 317 states have internal predecessors, (398), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 510 transitions. [2024-11-16 18:15:45,906 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 510 transitions. Word has length 118 [2024-11-16 18:15:45,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:45,907 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 510 transitions. [2024-11-16 18:15:45,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:45,907 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 510 transitions. [2024-11-16 18:15:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 18:15:45,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:45,908 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:45,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:15:45,909 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:45,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1665027260, now seen corresponding path program 1 times [2024-11-16 18:15:45,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:45,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099966826] [2024-11-16 18:15:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:46,239 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:46,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099966826] [2024-11-16 18:15:46,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099966826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:46,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:46,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:46,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383830362] [2024-11-16 18:15:46,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:46,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:46,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:46,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:46,243 INFO L87 Difference]: Start difference. First operand 383 states and 510 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:46,441 INFO L93 Difference]: Finished difference Result 755 states and 1003 transitions. [2024-11-16 18:15:46,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:46,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-16 18:15:46,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:46,445 INFO L225 Difference]: With dead ends: 755 [2024-11-16 18:15:46,445 INFO L226 Difference]: Without dead ends: 413 [2024-11-16 18:15:46,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 18:15:46,448 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 33 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:46,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 504 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:15:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-16 18:15:46,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 370. [2024-11-16 18:15:46,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 302 states have (on average 1.2483443708609272) internal successors, (377), 304 states have internal predecessors, (377), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 489 transitions. [2024-11-16 18:15:46,492 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 489 transitions. Word has length 118 [2024-11-16 18:15:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:46,492 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 489 transitions. [2024-11-16 18:15:46,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 489 transitions. [2024-11-16 18:15:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:15:46,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:46,494 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:46,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:15:46,495 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:46,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:46,495 INFO L85 PathProgramCache]: Analyzing trace with hash 156574316, now seen corresponding path program 1 times [2024-11-16 18:15:46,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:46,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416015875] [2024-11-16 18:15:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:47,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416015875] [2024-11-16 18:15:47,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416015875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:47,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:47,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:15:47,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156939315] [2024-11-16 18:15:47,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:47,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:15:47,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:47,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:15:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:15:47,801 INFO L87 Difference]: Start difference. First operand 370 states and 489 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:48,320 INFO L93 Difference]: Finished difference Result 428 states and 560 transitions. [2024-11-16 18:15:48,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:15:48,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-16 18:15:48,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:48,323 INFO L225 Difference]: With dead ends: 428 [2024-11-16 18:15:48,323 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 18:15:48,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:15:48,323 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 128 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:48,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 826 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:15:48,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 18:15:48,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 379. [2024-11-16 18:15:48,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 311 states have (on average 1.2411575562700965) internal successors, (386), 313 states have internal predecessors, (386), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 498 transitions. [2024-11-16 18:15:48,366 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 498 transitions. Word has length 119 [2024-11-16 18:15:48,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:48,366 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 498 transitions. [2024-11-16 18:15:48,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:48,367 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 498 transitions. [2024-11-16 18:15:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:15:48,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:48,368 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:48,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:15:48,369 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:48,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:48,370 INFO L85 PathProgramCache]: Analyzing trace with hash 185203467, now seen corresponding path program 1 times [2024-11-16 18:15:48,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:48,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809083414] [2024-11-16 18:15:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809083414] [2024-11-16 18:15:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809083414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:48,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:48,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:15:48,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285889217] [2024-11-16 18:15:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:48,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:15:48,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:15:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:15:48,924 INFO L87 Difference]: Start difference. First operand 379 states and 498 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:49,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:49,170 INFO L93 Difference]: Finished difference Result 729 states and 952 transitions. [2024-11-16 18:15:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:15:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-16 18:15:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:49,173 INFO L225 Difference]: With dead ends: 729 [2024-11-16 18:15:49,173 INFO L226 Difference]: Without dead ends: 391 [2024-11-16 18:15:49,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:15:49,175 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 73 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:49,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 444 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:15:49,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-11-16 18:15:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2024-11-16 18:15:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 320 states have (on average 1.225) internal successors, (392), 322 states have internal predecessors, (392), 56 states have call successors, (56), 14 states have call predecessors, (56), 14 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 504 transitions. [2024-11-16 18:15:49,215 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 504 transitions. Word has length 119 [2024-11-16 18:15:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:49,215 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 504 transitions. [2024-11-16 18:15:49,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 504 transitions. [2024-11-16 18:15:49,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:15:49,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:49,217 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:49,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:15:49,217 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:49,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:49,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1928013802, now seen corresponding path program 1 times [2024-11-16 18:15:49,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:49,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104460357] [2024-11-16 18:15:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:49,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:49,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:49,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:49,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:49,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-16 18:15:50,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:50,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104460357] [2024-11-16 18:15:50,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104460357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:50,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35257350] [2024-11-16 18:15:50,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:50,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:50,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:50,055 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 18:15:50,057 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 18:15:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:50,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 18:15:50,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:15:50,401 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 29 treesize of output 13 [2024-11-16 18:15:50,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:50,456 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 50 treesize of output 52 [2024-11-16 18:15:50,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:50,463 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 36 treesize of output 24 [2024-11-16 18:15:50,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:50,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 53 treesize of output 21 [2024-11-16 18:15:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 153 proven. 9 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-16 18:15:50,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:15:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-16 18:15:50,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35257350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:15:50,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:15:50,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 19 [2024-11-16 18:15:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970422654] [2024-11-16 18:15:50,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:15:50,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 18:15:50,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:50,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 18:15:50,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:15:50,984 INFO L87 Difference]: Start difference. First operand 391 states and 504 transitions. Second operand has 19 states, 15 states have (on average 7.733333333333333) internal successors, (116), 19 states have internal predecessors, (116), 9 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 5 states have call predecessors, (29), 9 states have call successors, (29) [2024-11-16 18:15:53,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:53,065 INFO L93 Difference]: Finished difference Result 778 states and 961 transitions. [2024-11-16 18:15:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-16 18:15:53,066 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 7.733333333333333) internal successors, (116), 19 states have internal predecessors, (116), 9 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 5 states have call predecessors, (29), 9 states have call successors, (29) Word has length 119 [2024-11-16 18:15:53,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:53,069 INFO L225 Difference]: With dead ends: 778 [2024-11-16 18:15:53,069 INFO L226 Difference]: Without dead ends: 550 [2024-11-16 18:15:53,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1004 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=739, Invalid=3167, Unknown=0, NotChecked=0, Total=3906 [2024-11-16 18:15:53,072 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 887 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:53,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 520 Invalid, 1316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 18:15:53,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-16 18:15:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 435. [2024-11-16 18:15:53,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 353 states have (on average 1.198300283286119) internal successors, (423), 355 states have internal predecessors, (423), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:53,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 535 transitions. [2024-11-16 18:15:53,127 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 535 transitions. Word has length 119 [2024-11-16 18:15:53,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:53,128 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 535 transitions. [2024-11-16 18:15:53,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 7.733333333333333) internal successors, (116), 19 states have internal predecessors, (116), 9 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (29), 5 states have call predecessors, (29), 9 states have call successors, (29) [2024-11-16 18:15:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 535 transitions. [2024-11-16 18:15:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:15:53,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:53,130 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:53,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 18:15:53,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:53,331 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:53,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1154334533, now seen corresponding path program 1 times [2024-11-16 18:15:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337797800] [2024-11-16 18:15:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:53,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:54,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:54,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337797800] [2024-11-16 18:15:54,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337797800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:54,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:54,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:15:54,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105790100] [2024-11-16 18:15:54,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:54,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:54,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:54,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:15:54,021 INFO L87 Difference]: Start difference. First operand 435 states and 535 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:54,687 INFO L93 Difference]: Finished difference Result 825 states and 1016 transitions. [2024-11-16 18:15:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:15:54,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-11-16 18:15:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:54,691 INFO L225 Difference]: With dead ends: 825 [2024-11-16 18:15:54,691 INFO L226 Difference]: Without dead ends: 577 [2024-11-16 18:15:54,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:15:54,693 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 246 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:54,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 631 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:15:54,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-16 18:15:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 438. [2024-11-16 18:15:54,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 356 states have (on average 1.196629213483146) internal successors, (426), 358 states have internal predecessors, (426), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 538 transitions. [2024-11-16 18:15:54,767 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 538 transitions. Word has length 120 [2024-11-16 18:15:54,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:54,768 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 538 transitions. [2024-11-16 18:15:54,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:54,768 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 538 transitions. [2024-11-16 18:15:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:15:54,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:54,770 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:54,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:15:54,770 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:54,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:54,770 INFO L85 PathProgramCache]: Analyzing trace with hash -161704298, now seen corresponding path program 1 times [2024-11-16 18:15:54,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:54,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357393048] [2024-11-16 18:15:54,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:54,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:55,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357393048] [2024-11-16 18:15:55,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357393048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:55,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:55,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:15:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003915980] [2024-11-16 18:15:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:55,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:15:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:15:55,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:15:55,644 INFO L87 Difference]: Start difference. First operand 438 states and 538 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:56,262 INFO L93 Difference]: Finished difference Result 868 states and 1077 transitions. [2024-11-16 18:15:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:15:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-11-16 18:15:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:56,266 INFO L225 Difference]: With dead ends: 868 [2024-11-16 18:15:56,266 INFO L226 Difference]: Without dead ends: 616 [2024-11-16 18:15:56,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:15:56,268 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 282 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:56,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 720 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:15:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-16 18:15:56,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 466. [2024-11-16 18:15:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 384 states have (on average 1.2109375) internal successors, (465), 386 states have internal predecessors, (465), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 577 transitions. [2024-11-16 18:15:56,325 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 577 transitions. Word has length 120 [2024-11-16 18:15:56,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:56,325 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 577 transitions. [2024-11-16 18:15:56,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:15:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 577 transitions. [2024-11-16 18:15:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:15:56,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:56,327 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:56,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:15:56,327 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:56,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 799909719, now seen corresponding path program 1 times [2024-11-16 18:15:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:56,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027596949] [2024-11-16 18:15:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:57,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027596949] [2024-11-16 18:15:57,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027596949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:57,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:57,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:15:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661071668] [2024-11-16 18:15:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:57,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:15:57,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:15:57,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:15:57,502 INFO L87 Difference]: Start difference. First operand 466 states and 577 transitions. Second operand has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:15:58,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:58,596 INFO L93 Difference]: Finished difference Result 874 states and 1079 transitions. [2024-11-16 18:15:58,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 18:15:58,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-16 18:15:58,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:58,600 INFO L225 Difference]: With dead ends: 874 [2024-11-16 18:15:58,600 INFO L226 Difference]: Without dead ends: 619 [2024-11-16 18:15:58,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:15:58,602 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 385 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:58,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1126 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:15:58,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-16 18:15:58,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 466. [2024-11-16 18:15:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 384 states have (on average 1.2083333333333333) internal successors, (464), 386 states have internal predecessors, (464), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 576 transitions. [2024-11-16 18:15:58,656 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 576 transitions. Word has length 120 [2024-11-16 18:15:58,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:58,657 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 576 transitions. [2024-11-16 18:15:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 14 states have internal predecessors, (53), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:15:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 576 transitions. [2024-11-16 18:15:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:15:58,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:58,658 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:58,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:15:58,658 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1200202329, now seen corresponding path program 1 times [2024-11-16 18:15:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428885225] [2024-11-16 18:15:58,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:58,941 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:58,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:58,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428885225] [2024-11-16 18:15:58,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428885225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:58,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:15:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611325227] [2024-11-16 18:15:58,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:58,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:15:58,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:15:58,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:58,943 INFO L87 Difference]: Start difference. First operand 466 states and 576 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:59,390 INFO L93 Difference]: Finished difference Result 853 states and 1051 transitions. [2024-11-16 18:15:59,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:15:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-16 18:15:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:59,394 INFO L225 Difference]: With dead ends: 853 [2024-11-16 18:15:59,394 INFO L226 Difference]: Without dead ends: 605 [2024-11-16 18:15:59,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:15:59,395 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 269 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:59,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 445 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:15:59,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-16 18:15:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 466. [2024-11-16 18:15:59,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 384 states have (on average 1.2083333333333333) internal successors, (464), 386 states have internal predecessors, (464), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:15:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 576 transitions. [2024-11-16 18:15:59,451 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 576 transitions. Word has length 120 [2024-11-16 18:15:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:59,451 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 576 transitions. [2024-11-16 18:15:59,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:15:59,451 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 576 transitions. [2024-11-16 18:15:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:15:59,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:59,454 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:59,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:15:59,454 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:59,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:59,454 INFO L85 PathProgramCache]: Analyzing trace with hash 689668152, now seen corresponding path program 1 times [2024-11-16 18:15:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:59,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792256211] [2024-11-16 18:15:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:59,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:15:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:15:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:15:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:15:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:15:59,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:59,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792256211] [2024-11-16 18:15:59,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792256211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:59,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:59,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:15:59,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908585395] [2024-11-16 18:15:59,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:59,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:15:59,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:59,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:15:59,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:15:59,957 INFO L87 Difference]: Start difference. First operand 466 states and 576 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:00,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:00,587 INFO L93 Difference]: Finished difference Result 817 states and 1005 transitions. [2024-11-16 18:16:00,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 18:16:00,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-11-16 18:16:00,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:00,590 INFO L225 Difference]: With dead ends: 817 [2024-11-16 18:16:00,591 INFO L226 Difference]: Without dead ends: 565 [2024-11-16 18:16:00,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:16:00,593 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 358 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:00,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 545 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:16:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-16 18:16:00,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 446. [2024-11-16 18:16:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 364 states have (on average 1.2005494505494505) internal successors, (437), 366 states have internal predecessors, (437), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 549 transitions. [2024-11-16 18:16:00,648 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 549 transitions. Word has length 120 [2024-11-16 18:16:00,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:00,649 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 549 transitions. [2024-11-16 18:16:00,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:00,649 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 549 transitions. [2024-11-16 18:16:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:16:00,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:00,650 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:00,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:16:00,651 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:00,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash 432053958, now seen corresponding path program 1 times [2024-11-16 18:16:00,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:00,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502971528] [2024-11-16 18:16:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:00,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:01,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:01,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502971528] [2024-11-16 18:16:01,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502971528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:01,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:01,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:16:01,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500943831] [2024-11-16 18:16:01,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:01,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:16:01,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:01,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:16:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:01,270 INFO L87 Difference]: Start difference. First operand 446 states and 549 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:01,624 INFO L93 Difference]: Finished difference Result 953 states and 1169 transitions. [2024-11-16 18:16:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:16:01,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-16 18:16:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:01,628 INFO L225 Difference]: With dead ends: 953 [2024-11-16 18:16:01,628 INFO L226 Difference]: Without dead ends: 560 [2024-11-16 18:16:01,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:16:01,630 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 161 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:01,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 765 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:16:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-16 18:16:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 462. [2024-11-16 18:16:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 380 states have (on average 1.1973684210526316) internal successors, (455), 382 states have internal predecessors, (455), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 567 transitions. [2024-11-16 18:16:01,691 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 567 transitions. Word has length 121 [2024-11-16 18:16:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:01,691 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 567 transitions. [2024-11-16 18:16:01,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 567 transitions. [2024-11-16 18:16:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:16:01,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:01,693 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:01,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:16:01,694 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash 561136677, now seen corresponding path program 1 times [2024-11-16 18:16:01,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:01,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754251662] [2024-11-16 18:16:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:01,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:01,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:01,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754251662] [2024-11-16 18:16:01,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754251662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:01,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:01,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:16:01,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344186424] [2024-11-16 18:16:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:01,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:16:01,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:01,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:16:01,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:16:01,924 INFO L87 Difference]: Start difference. First operand 462 states and 567 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:02,040 INFO L93 Difference]: Finished difference Result 1034 states and 1276 transitions. [2024-11-16 18:16:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:16:02,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-16 18:16:02,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:02,044 INFO L225 Difference]: With dead ends: 1034 [2024-11-16 18:16:02,044 INFO L226 Difference]: Without dead ends: 625 [2024-11-16 18:16:02,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 18:16:02,045 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 36 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:02,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 598 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-16 18:16:02,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 569. [2024-11-16 18:16:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 487 states have (on average 1.217659137577002) internal successors, (593), 489 states have internal predecessors, (593), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 705 transitions. [2024-11-16 18:16:02,100 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 705 transitions. Word has length 121 [2024-11-16 18:16:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:02,101 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 705 transitions. [2024-11-16 18:16:02,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 705 transitions. [2024-11-16 18:16:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:16:02,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:02,102 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:02,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 18:16:02,103 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:02,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:02,103 INFO L85 PathProgramCache]: Analyzing trace with hash 365047205, now seen corresponding path program 1 times [2024-11-16 18:16:02,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:02,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615012307] [2024-11-16 18:16:02,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:02,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:02,537 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:02,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:02,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615012307] [2024-11-16 18:16:02,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615012307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:02,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:02,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:16:02,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564429871] [2024-11-16 18:16:02,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:02,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:16:02,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:02,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:16:02,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:02,542 INFO L87 Difference]: Start difference. First operand 569 states and 705 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:02,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:02,868 INFO L93 Difference]: Finished difference Result 1128 states and 1415 transitions. [2024-11-16 18:16:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:16:02,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-16 18:16:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:02,872 INFO L225 Difference]: With dead ends: 1128 [2024-11-16 18:16:02,872 INFO L226 Difference]: Without dead ends: 612 [2024-11-16 18:16:02,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:16:02,873 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 101 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:02,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 533 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:16:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-16 18:16:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2024-11-16 18:16:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 530 states have (on average 1.230188679245283) internal successors, (652), 531 states have internal predecessors, (652), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 764 transitions. [2024-11-16 18:16:02,928 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 764 transitions. Word has length 121 [2024-11-16 18:16:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:02,928 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 764 transitions. [2024-11-16 18:16:02,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 764 transitions. [2024-11-16 18:16:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:16:02,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:02,930 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:02,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 18:16:02,930 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:02,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:02,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1516072666, now seen corresponding path program 1 times [2024-11-16 18:16:02,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:02,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757660069] [2024-11-16 18:16:02,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:02,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757660069] [2024-11-16 18:16:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757660069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:03,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:16:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965394351] [2024-11-16 18:16:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:03,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:16:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:16:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:16:03,186 INFO L87 Difference]: Start difference. First operand 612 states and 764 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:03,276 INFO L93 Difference]: Finished difference Result 1176 states and 1459 transitions. [2024-11-16 18:16:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:16:03,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-16 18:16:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:03,280 INFO L225 Difference]: With dead ends: 1176 [2024-11-16 18:16:03,280 INFO L226 Difference]: Without dead ends: 659 [2024-11-16 18:16:03,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 18:16:03,282 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:03,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 464 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:16:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-16 18:16:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 596. [2024-11-16 18:16:03,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 514 states have (on average 1.2198443579766538) internal successors, (627), 515 states have internal predecessors, (627), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:03,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 739 transitions. [2024-11-16 18:16:03,336 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 739 transitions. Word has length 121 [2024-11-16 18:16:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:03,337 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 739 transitions. [2024-11-16 18:16:03,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 739 transitions. [2024-11-16 18:16:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:16:03,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:03,338 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:03,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 18:16:03,338 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:03,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:03,339 INFO L85 PathProgramCache]: Analyzing trace with hash 213931037, now seen corresponding path program 1 times [2024-11-16 18:16:03,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:03,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452696278] [2024-11-16 18:16:03,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:03,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:03,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:03,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452696278] [2024-11-16 18:16:03,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452696278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:03,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:03,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:16:03,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715278313] [2024-11-16 18:16:03,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:03,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:16:03,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:03,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:16:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:16:03,804 INFO L87 Difference]: Start difference. First operand 596 states and 739 transitions. Second operand has 7 states, 5 states have (on average 11.0) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:04,224 INFO L93 Difference]: Finished difference Result 1089 states and 1345 transitions. [2024-11-16 18:16:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:16:04,225 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.0) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2024-11-16 18:16:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:04,230 INFO L225 Difference]: With dead ends: 1089 [2024-11-16 18:16:04,230 INFO L226 Difference]: Without dead ends: 746 [2024-11-16 18:16:04,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:04,233 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 56 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:04,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 567 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:16:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-16 18:16:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 647. [2024-11-16 18:16:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 565 states have (on average 1.2123893805309736) internal successors, (685), 566 states have internal predecessors, (685), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:04,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 797 transitions. [2024-11-16 18:16:04,295 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 797 transitions. Word has length 122 [2024-11-16 18:16:04,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:04,296 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 797 transitions. [2024-11-16 18:16:04,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.0) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:04,296 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 797 transitions. [2024-11-16 18:16:04,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:16:04,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:04,297 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:04,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 18:16:04,297 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:04,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:04,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1585043149, now seen corresponding path program 1 times [2024-11-16 18:16:04,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71722842] [2024-11-16 18:16:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:04,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:05,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:05,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71722842] [2024-11-16 18:16:05,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71722842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:05,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:05,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:16:05,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352075800] [2024-11-16 18:16:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:05,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:16:05,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:05,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:16:05,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:16:05,328 INFO L87 Difference]: Start difference. First operand 647 states and 797 transitions. Second operand has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:05,832 INFO L93 Difference]: Finished difference Result 1323 states and 1647 transitions. [2024-11-16 18:16:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:16:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-16 18:16:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:05,838 INFO L225 Difference]: With dead ends: 1323 [2024-11-16 18:16:05,839 INFO L226 Difference]: Without dead ends: 959 [2024-11-16 18:16:05,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:16:05,841 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 67 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:05,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1368 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:16:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-16 18:16:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 798. [2024-11-16 18:16:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 716 states have (on average 1.244413407821229) internal successors, (891), 717 states have internal predecessors, (891), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:05,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1003 transitions. [2024-11-16 18:16:05,910 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1003 transitions. Word has length 123 [2024-11-16 18:16:05,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:05,910 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1003 transitions. [2024-11-16 18:16:05,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.090909090909091) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1003 transitions. [2024-11-16 18:16:05,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:16:05,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:05,911 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:05,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 18:16:05,912 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:05,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash 96216986, now seen corresponding path program 1 times [2024-11-16 18:16:05,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:05,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573614488] [2024-11-16 18:16:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:05,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:07,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:07,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573614488] [2024-11-16 18:16:07,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573614488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:07,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:07,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:16:07,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803010955] [2024-11-16 18:16:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:07,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:16:07,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:07,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:16:07,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:16:07,020 INFO L87 Difference]: Start difference. First operand 798 states and 1003 transitions. Second operand has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:08,357 INFO L93 Difference]: Finished difference Result 1821 states and 2266 transitions. [2024-11-16 18:16:08,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 18:16:08,358 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-16 18:16:08,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:08,364 INFO L225 Difference]: With dead ends: 1821 [2024-11-16 18:16:08,364 INFO L226 Difference]: Without dead ends: 1394 [2024-11-16 18:16:08,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2024-11-16 18:16:08,366 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 387 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:08,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 1662 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 18:16:08,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-16 18:16:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 916. [2024-11-16 18:16:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 834 states have (on average 1.2517985611510791) internal successors, (1044), 835 states have internal predecessors, (1044), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1156 transitions. [2024-11-16 18:16:08,434 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1156 transitions. Word has length 124 [2024-11-16 18:16:08,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:08,434 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1156 transitions. [2024-11-16 18:16:08,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1156 transitions. [2024-11-16 18:16:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:16:08,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:08,436 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:08,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 18:16:08,436 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:08,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1186913722, now seen corresponding path program 1 times [2024-11-16 18:16:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:08,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514771563] [2024-11-16 18:16:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:08,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:08,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:08,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:08,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514771563] [2024-11-16 18:16:08,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514771563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:16:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398044832] [2024-11-16 18:16:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:08,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:16:08,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:16:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:16:08,729 INFO L87 Difference]: Start difference. First operand 916 states and 1156 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:08,841 INFO L93 Difference]: Finished difference Result 1588 states and 2018 transitions. [2024-11-16 18:16:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:16:08,842 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2024-11-16 18:16:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:08,847 INFO L225 Difference]: With dead ends: 1588 [2024-11-16 18:16:08,847 INFO L226 Difference]: Without dead ends: 1078 [2024-11-16 18:16:08,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 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 18:16:08,848 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 34 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:08,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 664 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:08,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-11-16 18:16:08,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1020. [2024-11-16 18:16:08,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 938 states have (on average 1.2526652452025586) internal successors, (1175), 939 states have internal predecessors, (1175), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1287 transitions. [2024-11-16 18:16:08,916 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1287 transitions. Word has length 124 [2024-11-16 18:16:08,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:08,916 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1287 transitions. [2024-11-16 18:16:08,916 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1287 transitions. [2024-11-16 18:16:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:08,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:08,918 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:08,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 18:16:08,918 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:08,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 152825232, now seen corresponding path program 1 times [2024-11-16 18:16:08,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:08,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698896602] [2024-11-16 18:16:08,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:08,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:09,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698896602] [2024-11-16 18:16:09,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698896602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:09,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:09,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-16 18:16:09,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227081369] [2024-11-16 18:16:09,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:09,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 18:16:09,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:09,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 18:16:09,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 18:16:09,887 INFO L87 Difference]: Start difference. First operand 1020 states and 1287 transitions. Second operand has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:10,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:10,473 INFO L93 Difference]: Finished difference Result 1991 states and 2548 transitions. [2024-11-16 18:16:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 18:16:10,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-16 18:16:10,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:10,480 INFO L225 Difference]: With dead ends: 1991 [2024-11-16 18:16:10,481 INFO L226 Difference]: Without dead ends: 1410 [2024-11-16 18:16:10,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:16:10,483 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 56 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:10,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 935 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:16:10,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-16 18:16:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1201. [2024-11-16 18:16:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1119 states have (on average 1.2689901697944594) internal successors, (1420), 1120 states have internal predecessors, (1420), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1532 transitions. [2024-11-16 18:16:10,592 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1532 transitions. Word has length 125 [2024-11-16 18:16:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:10,592 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1532 transitions. [2024-11-16 18:16:10,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.285714285714286) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1532 transitions. [2024-11-16 18:16:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:10,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:10,594 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:10,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 18:16:10,594 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:10,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash -844247121, now seen corresponding path program 1 times [2024-11-16 18:16:10,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:10,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21859349] [2024-11-16 18:16:10,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:10,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:11,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:11,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21859349] [2024-11-16 18:16:11,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21859349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:11,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:11,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:16:11,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429530327] [2024-11-16 18:16:11,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:11,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:16:11,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:11,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:16:11,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:16:11,057 INFO L87 Difference]: Start difference. First operand 1201 states and 1532 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:11,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:11,245 INFO L93 Difference]: Finished difference Result 2101 states and 2704 transitions. [2024-11-16 18:16:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:16:11,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-11-16 18:16:11,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:11,251 INFO L225 Difference]: With dead ends: 2101 [2024-11-16 18:16:11,251 INFO L226 Difference]: Without dead ends: 1420 [2024-11-16 18:16:11,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 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 18:16:11,253 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 43 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:11,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 489 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2024-11-16 18:16:11,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1231. [2024-11-16 18:16:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1149 states have (on average 1.27763272410792) internal successors, (1468), 1150 states have internal predecessors, (1468), 56 states have call successors, (56), 25 states have call predecessors, (56), 25 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:11,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1580 transitions. [2024-11-16 18:16:11,345 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1580 transitions. Word has length 125 [2024-11-16 18:16:11,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:11,345 INFO L471 AbstractCegarLoop]: Abstraction has 1231 states and 1580 transitions. [2024-11-16 18:16:11,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1580 transitions. [2024-11-16 18:16:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:11,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:11,347 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:11,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 18:16:11,347 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:11,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:11,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1354781298, now seen corresponding path program 1 times [2024-11-16 18:16:11,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:11,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956962568] [2024-11-16 18:16:11,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:12,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:12,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956962568] [2024-11-16 18:16:12,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956962568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:12,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:12,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:16:12,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703474131] [2024-11-16 18:16:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:12,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:16:12,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:16:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:16:12,445 INFO L87 Difference]: Start difference. First operand 1231 states and 1580 transitions. Second operand has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:13,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:13,360 INFO L93 Difference]: Finished difference Result 2408 states and 3113 transitions. [2024-11-16 18:16:13,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:16:13,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-16 18:16:13,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:13,366 INFO L225 Difference]: With dead ends: 2408 [2024-11-16 18:16:13,367 INFO L226 Difference]: Without dead ends: 1679 [2024-11-16 18:16:13,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:16:13,368 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 275 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:13,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1186 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:16:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2024-11-16 18:16:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1229. [2024-11-16 18:16:13,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1146 states have (on average 1.2818499127399652) internal successors, (1469), 1147 states have internal predecessors, (1469), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1581 transitions. [2024-11-16 18:16:13,448 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1581 transitions. Word has length 125 [2024-11-16 18:16:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:13,448 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1581 transitions. [2024-11-16 18:16:13,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1581 transitions. [2024-11-16 18:16:13,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:13,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:13,450 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:13,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 18:16:13,450 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:13,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1210171600, now seen corresponding path program 1 times [2024-11-16 18:16:13,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:13,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980585005] [2024-11-16 18:16:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:14,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:14,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980585005] [2024-11-16 18:16:14,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980585005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:14,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:14,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:16:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524313159] [2024-11-16 18:16:14,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:14,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:16:14,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:14,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:16:14,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:16:14,852 INFO L87 Difference]: Start difference. First operand 1229 states and 1581 transitions. Second operand has 11 states, 7 states have (on average 8.285714285714286) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:15,359 INFO L93 Difference]: Finished difference Result 2329 states and 3039 transitions. [2024-11-16 18:16:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:16:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 8.285714285714286) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 125 [2024-11-16 18:16:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:15,366 INFO L225 Difference]: With dead ends: 2329 [2024-11-16 18:16:15,366 INFO L226 Difference]: Without dead ends: 1618 [2024-11-16 18:16:15,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:16:15,368 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 59 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:15,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 942 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:16:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2024-11-16 18:16:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1413. [2024-11-16 18:16:15,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1330 states have (on average 1.2924812030075188) internal successors, (1719), 1331 states have internal predecessors, (1719), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1831 transitions. [2024-11-16 18:16:15,452 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1831 transitions. Word has length 125 [2024-11-16 18:16:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:15,452 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1831 transitions. [2024-11-16 18:16:15,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 8.285714285714286) internal successors, (58), 11 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1831 transitions. [2024-11-16 18:16:15,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:15,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:15,454 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:15,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 18:16:15,454 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:15,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash 699637423, now seen corresponding path program 1 times [2024-11-16 18:16:15,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:15,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712144034] [2024-11-16 18:16:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:15,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:16,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:16,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712144034] [2024-11-16 18:16:16,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712144034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:16,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:16,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:16:16,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351173385] [2024-11-16 18:16:16,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:16,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:16:16,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:16:16,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:16:16,818 INFO L87 Difference]: Start difference. First operand 1413 states and 1831 transitions. Second operand has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:17,995 INFO L93 Difference]: Finished difference Result 2660 states and 3483 transitions. [2024-11-16 18:16:17,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 18:16:17,995 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2024-11-16 18:16:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:18,003 INFO L225 Difference]: With dead ends: 2660 [2024-11-16 18:16:18,003 INFO L226 Difference]: Without dead ends: 1846 [2024-11-16 18:16:18,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-11-16 18:16:18,005 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 224 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:18,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1097 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:16:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-16 18:16:18,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1423. [2024-11-16 18:16:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1340 states have (on average 1.2902985074626865) internal successors, (1729), 1341 states have internal predecessors, (1729), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:18,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1841 transitions. [2024-11-16 18:16:18,103 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1841 transitions. Word has length 125 [2024-11-16 18:16:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:18,103 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1841 transitions. [2024-11-16 18:16:18,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1841 transitions. [2024-11-16 18:16:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:18,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:18,105 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:18,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 18:16:18,105 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:18,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash 2115945389, now seen corresponding path program 1 times [2024-11-16 18:16:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:18,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726395824] [2024-11-16 18:16:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:18,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:18,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:18,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726395824] [2024-11-16 18:16:18,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726395824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:18,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:18,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:16:18,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340675632] [2024-11-16 18:16:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:18,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:16:18,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:18,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:16:18,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:16:18,591 INFO L87 Difference]: Start difference. First operand 1423 states and 1841 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:18,849 INFO L93 Difference]: Finished difference Result 2448 states and 3186 transitions. [2024-11-16 18:16:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:16:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 125 [2024-11-16 18:16:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:18,855 INFO L225 Difference]: With dead ends: 2448 [2024-11-16 18:16:18,855 INFO L226 Difference]: Without dead ends: 1634 [2024-11-16 18:16:18,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:18,857 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 59 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:18,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 621 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:16:18,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-16 18:16:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1399. [2024-11-16 18:16:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1316 states have (on average 1.2712765957446808) internal successors, (1673), 1317 states have internal predecessors, (1673), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1785 transitions. [2024-11-16 18:16:18,955 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1785 transitions. Word has length 125 [2024-11-16 18:16:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:18,956 INFO L471 AbstractCegarLoop]: Abstraction has 1399 states and 1785 transitions. [2024-11-16 18:16:18,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1785 transitions. [2024-11-16 18:16:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:18,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:18,958 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:18,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 18:16:18,958 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:18,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash 608338859, now seen corresponding path program 1 times [2024-11-16 18:16:18,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:18,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774513349] [2024-11-16 18:16:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:18,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:20,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:20,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774513349] [2024-11-16 18:16:20,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774513349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:20,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:20,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 18:16:20,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67652669] [2024-11-16 18:16:20,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:20,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 18:16:20,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:20,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 18:16:20,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:16:20,541 INFO L87 Difference]: Start difference. First operand 1399 states and 1785 transitions. Second operand has 17 states, 13 states have (on average 4.461538461538462) internal successors, (58), 17 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:21,703 INFO L93 Difference]: Finished difference Result 2543 states and 3240 transitions. [2024-11-16 18:16:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 18:16:21,703 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.461538461538462) internal successors, (58), 17 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 125 [2024-11-16 18:16:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:21,709 INFO L225 Difference]: With dead ends: 2543 [2024-11-16 18:16:21,709 INFO L226 Difference]: Without dead ends: 1744 [2024-11-16 18:16:21,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2024-11-16 18:16:21,711 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 295 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:21,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1129 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:16:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2024-11-16 18:16:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1400. [2024-11-16 18:16:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1317 states have (on average 1.269552012148823) internal successors, (1672), 1318 states have internal predecessors, (1672), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1784 transitions. [2024-11-16 18:16:21,825 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1784 transitions. Word has length 125 [2024-11-16 18:16:21,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:21,825 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 1784 transitions. [2024-11-16 18:16:21,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.461538461538462) internal successors, (58), 17 states have internal predecessors, (58), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1784 transitions. [2024-11-16 18:16:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:21,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:21,827 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:21,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 18:16:21,827 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:21,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:21,827 INFO L85 PathProgramCache]: Analyzing trace with hash 977464396, now seen corresponding path program 1 times [2024-11-16 18:16:21,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:21,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273013826] [2024-11-16 18:16:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:21,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:22,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:22,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273013826] [2024-11-16 18:16:22,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273013826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:22,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:22,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:16:22,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833347628] [2024-11-16 18:16:22,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:22,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:16:22,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:22,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:16:22,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:16:22,384 INFO L87 Difference]: Start difference. First operand 1400 states and 1784 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:22,856 INFO L93 Difference]: Finished difference Result 2644 states and 3397 transitions. [2024-11-16 18:16:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:16:22,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-11-16 18:16:22,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:22,862 INFO L225 Difference]: With dead ends: 2644 [2024-11-16 18:16:22,862 INFO L226 Difference]: Without dead ends: 1759 [2024-11-16 18:16:22,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:16:22,865 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 172 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:22,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 670 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:16:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2024-11-16 18:16:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1424. [2024-11-16 18:16:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1341 states have (on average 1.2647278150633856) internal successors, (1696), 1342 states have internal predecessors, (1696), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1808 transitions. [2024-11-16 18:16:22,957 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1808 transitions. Word has length 125 [2024-11-16 18:16:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:22,958 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 1808 transitions. [2024-11-16 18:16:22,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1808 transitions. [2024-11-16 18:16:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 18:16:22,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:22,959 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:22,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 18:16:22,960 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:22,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:22,960 INFO L85 PathProgramCache]: Analyzing trace with hash 988780523, now seen corresponding path program 1 times [2024-11-16 18:16:22,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:22,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835929284] [2024-11-16 18:16:22,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:22,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:23,604 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:23,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:23,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835929284] [2024-11-16 18:16:23,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835929284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:23,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:23,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 18:16:23,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573398495] [2024-11-16 18:16:23,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:23,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 18:16:23,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 18:16:23,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:16:23,606 INFO L87 Difference]: Start difference. First operand 1424 states and 1808 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:24,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:24,293 INFO L93 Difference]: Finished difference Result 2716 states and 3435 transitions. [2024-11-16 18:16:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 18:16:24,293 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-11-16 18:16:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:24,297 INFO L225 Difference]: With dead ends: 2716 [2024-11-16 18:16:24,298 INFO L226 Difference]: Without dead ends: 1895 [2024-11-16 18:16:24,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:16:24,300 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 406 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:24,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 893 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:16:24,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2024-11-16 18:16:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1413. [2024-11-16 18:16:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1330 states have (on average 1.2639097744360903) internal successors, (1681), 1331 states have internal predecessors, (1681), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:24,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1793 transitions. [2024-11-16 18:16:24,392 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1793 transitions. Word has length 125 [2024-11-16 18:16:24,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:24,393 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1793 transitions. [2024-11-16 18:16:24,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:24,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1793 transitions. [2024-11-16 18:16:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 18:16:24,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:24,394 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:24,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 18:16:24,395 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:24,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:24,395 INFO L85 PathProgramCache]: Analyzing trace with hash 678519507, now seen corresponding path program 1 times [2024-11-16 18:16:24,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:24,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132164194] [2024-11-16 18:16:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:24,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:25,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:25,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132164194] [2024-11-16 18:16:25,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132164194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:25,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:25,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 18:16:25,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087347544] [2024-11-16 18:16:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:25,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 18:16:25,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:25,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 18:16:25,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2024-11-16 18:16:25,604 INFO L87 Difference]: Start difference. First operand 1413 states and 1793 transitions. Second operand has 17 states, 15 states have (on average 4.0) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:26,644 INFO L93 Difference]: Finished difference Result 2929 states and 3712 transitions. [2024-11-16 18:16:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-16 18:16:26,645 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2024-11-16 18:16:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:26,650 INFO L225 Difference]: With dead ends: 2929 [2024-11-16 18:16:26,651 INFO L226 Difference]: Without dead ends: 2121 [2024-11-16 18:16:26,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=148, Invalid=1184, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 18:16:26,658 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 194 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:26,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1928 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 18:16:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2024-11-16 18:16:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 1548. [2024-11-16 18:16:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1465 states have (on average 1.2744027303754266) internal successors, (1867), 1466 states have internal predecessors, (1867), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 1979 transitions. [2024-11-16 18:16:26,762 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 1979 transitions. Word has length 127 [2024-11-16 18:16:26,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:26,762 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 1979 transitions. [2024-11-16 18:16:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 4.0) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-16 18:16:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 1979 transitions. [2024-11-16 18:16:26,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 18:16:26,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:26,784 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:26,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 18:16:26,784 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:26,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash 167985330, now seen corresponding path program 1 times [2024-11-16 18:16:26,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:26,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982869930] [2024-11-16 18:16:26,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:26,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:26,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:26,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982869930] [2024-11-16 18:16:26,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982869930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:26,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:26,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:16:26,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493348795] [2024-11-16 18:16:26,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:26,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:16:26,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:26,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:16:26,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:16:26,979 INFO L87 Difference]: Start difference. First operand 1548 states and 1979 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:27,161 INFO L93 Difference]: Finished difference Result 2642 states and 3394 transitions. [2024-11-16 18:16:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:16:27,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 127 [2024-11-16 18:16:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:27,166 INFO L225 Difference]: With dead ends: 2642 [2024-11-16 18:16:27,166 INFO L226 Difference]: Without dead ends: 1737 [2024-11-16 18:16:27,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 18:16:27,167 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 41 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:27,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 461 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2024-11-16 18:16:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1532. [2024-11-16 18:16:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1449 states have (on average 1.2650103519668736) internal successors, (1833), 1450 states have internal predecessors, (1833), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1945 transitions. [2024-11-16 18:16:27,260 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1945 transitions. Word has length 127 [2024-11-16 18:16:27,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:27,262 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1945 transitions. [2024-11-16 18:16:27,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:27,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1945 transitions. [2024-11-16 18:16:27,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 18:16:27,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:27,264 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:27,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-16 18:16:27,264 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:27,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2017012725, now seen corresponding path program 1 times [2024-11-16 18:16:27,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:27,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301937268] [2024-11-16 18:16:27,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:27,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:27,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:27,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301937268] [2024-11-16 18:16:27,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301937268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:27,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:27,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:16:27,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435913134] [2024-11-16 18:16:27,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:27,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:16:27,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:27,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:16:27,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:16:27,618 INFO L87 Difference]: Start difference. First operand 1532 states and 1945 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:28,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:28,038 INFO L93 Difference]: Finished difference Result 2551 states and 3258 transitions. [2024-11-16 18:16:28,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:16:28,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-11-16 18:16:28,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:28,042 INFO L225 Difference]: With dead ends: 2551 [2024-11-16 18:16:28,042 INFO L226 Difference]: Without dead ends: 1429 [2024-11-16 18:16:28,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:16:28,044 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 193 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:28,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 663 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:16:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-16 18:16:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1233. [2024-11-16 18:16:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 1150 states have (on average 1.2652173913043478) internal successors, (1455), 1151 states have internal predecessors, (1455), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:28,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1567 transitions. [2024-11-16 18:16:28,136 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1567 transitions. Word has length 127 [2024-11-16 18:16:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:28,137 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1567 transitions. [2024-11-16 18:16:28,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-16 18:16:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1567 transitions. [2024-11-16 18:16:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 18:16:28,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:28,139 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:28,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-16 18:16:28,139 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:28,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:28,139 INFO L85 PathProgramCache]: Analyzing trace with hash 200745228, now seen corresponding path program 1 times [2024-11-16 18:16:28,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:28,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269670496] [2024-11-16 18:16:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:28,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:28,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:28,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269670496] [2024-11-16 18:16:28,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269670496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:28,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:28,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:16:28,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808557866] [2024-11-16 18:16:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:28,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:16:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:16:28,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:28,736 INFO L87 Difference]: Start difference. First operand 1233 states and 1567 transitions. Second operand has 8 states, 5 states have (on average 12.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:28,918 INFO L93 Difference]: Finished difference Result 2094 states and 2699 transitions. [2024-11-16 18:16:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:16:28,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 12.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) Word has length 127 [2024-11-16 18:16:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:28,921 INFO L225 Difference]: With dead ends: 2094 [2024-11-16 18:16:28,921 INFO L226 Difference]: Without dead ends: 1192 [2024-11-16 18:16:28,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:16:28,923 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:28,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 578 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-16 18:16:29,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2024-11-16 18:16:29,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 1109 states have (on average 1.2587917042380523) internal successors, (1396), 1110 states have internal predecessors, (1396), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:29,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1508 transitions. [2024-11-16 18:16:29,012 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1508 transitions. Word has length 127 [2024-11-16 18:16:29,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:29,012 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1508 transitions. [2024-11-16 18:16:29,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 12.0) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-16 18:16:29,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1508 transitions. [2024-11-16 18:16:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 18:16:29,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:29,013 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:29,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-16 18:16:29,014 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:29,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:29,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1809358613, now seen corresponding path program 1 times [2024-11-16 18:16:29,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:29,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90746186] [2024-11-16 18:16:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:29,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:30,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:30,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90746186] [2024-11-16 18:16:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90746186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:30,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-16 18:16:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652447896] [2024-11-16 18:16:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:30,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 18:16:30,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 18:16:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:16:30,126 INFO L87 Difference]: Start difference. First operand 1192 states and 1508 transitions. Second operand has 15 states, 11 states have (on average 5.454545454545454) internal successors, (60), 15 states have internal predecessors, (60), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:30,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:30,952 INFO L93 Difference]: Finished difference Result 2212 states and 2808 transitions. [2024-11-16 18:16:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-16 18:16:30,953 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.454545454545454) internal successors, (60), 15 states have internal predecessors, (60), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) Word has length 127 [2024-11-16 18:16:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:30,956 INFO L225 Difference]: With dead ends: 2212 [2024-11-16 18:16:30,956 INFO L226 Difference]: Without dead ends: 1362 [2024-11-16 18:16:30,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-16 18:16:30,957 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 216 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:30,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 1152 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 18:16:30,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-16 18:16:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1196. [2024-11-16 18:16:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 1113 states have (on average 1.2578616352201257) internal successors, (1400), 1114 states have internal predecessors, (1400), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1512 transitions. [2024-11-16 18:16:31,034 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1512 transitions. Word has length 127 [2024-11-16 18:16:31,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:31,034 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1512 transitions. [2024-11-16 18:16:31,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.454545454545454) internal successors, (60), 15 states have internal predecessors, (60), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-16 18:16:31,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1512 transitions. [2024-11-16 18:16:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 18:16:31,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:31,035 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:31,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-16 18:16:31,036 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:31,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:31,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1354649008, now seen corresponding path program 1 times [2024-11-16 18:16:31,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:31,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960325395] [2024-11-16 18:16:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:16:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:16:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:16:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:16:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 18:16:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 18:16:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:16:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 18:16:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 18:16:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:16:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:16:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:16:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:16:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:16:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:16:31,188 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-16 18:16:31,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:16:31,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960325395] [2024-11-16 18:16:31,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960325395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:16:31,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:16:31,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:16:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341286642] [2024-11-16 18:16:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:16:31,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:16:31,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:16:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:16:31,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:16:31,189 INFO L87 Difference]: Start difference. First operand 1196 states and 1512 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:16:31,370 INFO L93 Difference]: Finished difference Result 2170 states and 2744 transitions. [2024-11-16 18:16:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:16:31,370 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 129 [2024-11-16 18:16:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:16:31,373 INFO L225 Difference]: With dead ends: 2170 [2024-11-16 18:16:31,373 INFO L226 Difference]: Without dead ends: 1292 [2024-11-16 18:16:31,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 18:16:31,374 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 69 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:16:31,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 481 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:16:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2024-11-16 18:16:31,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1059. [2024-11-16 18:16:31,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 976 states have (on average 1.2407786885245902) internal successors, (1211), 977 states have internal predecessors, (1211), 56 states have call successors, (56), 26 states have call predecessors, (56), 26 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-16 18:16:31,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1323 transitions. [2024-11-16 18:16:31,464 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1323 transitions. Word has length 129 [2024-11-16 18:16:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:16:31,464 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1323 transitions. [2024-11-16 18:16:31,465 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-16 18:16:31,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1323 transitions. [2024-11-16 18:16:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 18:16:31,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:16:31,466 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:16:31,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-16 18:16:31,466 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:16:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:16:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1797342733, now seen corresponding path program 1 times [2024-11-16 18:16:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:16:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31246213] [2024-11-16 18:16:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:16:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:16:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat