./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-15.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-15.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 af611b85592e3bfdb76cb3d02db14972ec0514184947c9ed0792744d9af89e7a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:09:25,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:09:25,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:09:25,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:09:25,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:09:25,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:09:25,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:09:25,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:09:25,973 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:09:25,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:09:25,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:09:25,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:09:25,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:09:25,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:09:25,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:09:25,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:09:25,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:09:25,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:09:25,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:09:25,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:09:25,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:09:25,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:09:25,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:09:25,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:09:25,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:09:25,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:09:25,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:09:25,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:09:25,997 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:09:25,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:09:25,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:09:25,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:09:25,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:09:25,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:09:25,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:09:25,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:09:25,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:09:25,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:09:25,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:09:26,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:09:26,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:09:26,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:09:26,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af611b85592e3bfdb76cb3d02db14972ec0514184947c9ed0792744d9af89e7a [2024-11-16 18:09:26,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:09:26,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:09:26,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:09:26,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:09:26,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:09:26,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-15.i [2024-11-16 18:09:27,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:09:27,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:09:27,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-15.i [2024-11-16 18:09:27,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5b35a31/6c723bee3e0c421ab56d4b830fe92458/FLAGe52474d59 [2024-11-16 18:09:27,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5b35a31/6c723bee3e0c421ab56d4b830fe92458 [2024-11-16 18:09:27,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:09:27,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:09:27,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:09:27,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:09:27,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:09:27,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:09:27" (1/1) ... [2024-11-16 18:09:27,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2dd2fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:27, skipping insertion in model container [2024-11-16 18:09:27,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:09:27" (1/1) ... [2024-11-16 18:09:27,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:09:28,118 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-15.i[916,929] [2024-11-16 18:09:28,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:09:28,189 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:09:28,198 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-15.i[916,929] [2024-11-16 18:09:28,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:09:28,255 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:09:28,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28 WrapperNode [2024-11-16 18:09:28,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:09:28,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:09:28,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:09:28,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:09:28,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,334 INFO L138 Inliner]: procedures = 29, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 500 [2024-11-16 18:09:28,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:09:28,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:09:28,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:09:28,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:09:28,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,403 INFO L175 MemorySlicer]: Split 127 memory accesses to 6 slices as follows [2, 16, 51, 25, 10, 23]. 40 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 5, 2, 1, 2]. The 16 writes are split as follows [0, 2, 6, 4, 1, 3]. [2024-11-16 18:09:28,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,436 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:09:28,452 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:09:28,452 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:09:28,452 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:09:28,453 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (1/1) ... [2024-11-16 18:09:28,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:09:28,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:09:28,485 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 18:09:28,487 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 18:09:28,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:09:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 18:09:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 18:09:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 18:09:28,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 18:09:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-16 18:09:28,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-16 18:09:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:09:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:09:28,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 18:09:28,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 18:09:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 18:09:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-16 18:09:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-16 18:09:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:09:28,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-16 18:09:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-16 18:09:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-16 18:09:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-16 18:09:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-16 18:09:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-16 18:09:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:09:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:09:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:09:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:09:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:09:28,684 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:09:28,686 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:09:29,119 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L94: havoc property_#t~mem89#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~short90#1;havoc property_#t~ite101#1;havoc property_#t~mem91#1;havoc property_#t~mem92#1;havoc property_#t~ite98#1;havoc property_#t~mem93#1;havoc property_#t~ite96#1;havoc property_#t~mem95#1;havoc property_#t~mem94#1;havoc property_#t~mem97#1;havoc property_#t~mem100#1;havoc property_#t~mem99#1;havoc property_#t~mem102#1;havoc property_#t~ite112#1;havoc property_#t~mem107#1;havoc property_#t~mem103#1;havoc property_#t~ite106#1;havoc property_#t~mem104#1;havoc property_#t~mem105#1;havoc property_#t~mem111#1;havoc property_#t~mem108#1;havoc property_#t~ite110#1;havoc property_#t~mem109#1;havoc property_#t~short113#1;havoc property_#t~mem114#1;havoc property_#t~ite121#1;havoc property_#t~mem120#1;havoc property_#t~mem119#1;havoc property_#t~mem115#1;havoc property_#t~ite118#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~short122#1;havoc property_#t~mem123#1;havoc property_#t~mem124#1;havoc property_#t~ite140#1;havoc property_#t~mem133#1;havoc property_#t~mem132#1;havoc property_#t~mem125#1;havoc property_#t~mem126#1;havoc property_#t~mem127#1;havoc property_#t~ite131#1;havoc property_#t~mem128#1;havoc property_#t~mem129#1;havoc property_#t~mem130#1;havoc property_#t~mem139#1;havoc property_#t~mem134#1;havoc property_#t~mem135#1;havoc property_#t~ite138#1;havoc property_#t~mem136#1;havoc property_#t~mem137#1;havoc property_#t~short141#1; [2024-11-16 18:09:29,174 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 18:09:29,175 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:09:29,193 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:09:29,194 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:09:29,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:09:29 BoogieIcfgContainer [2024-11-16 18:09:29,195 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:09:29,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:09:29,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:09:29,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:09:29,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:09:27" (1/3) ... [2024-11-16 18:09:29,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d3453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:09:29, skipping insertion in model container [2024-11-16 18:09:29,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:09:28" (2/3) ... [2024-11-16 18:09:29,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@622d3453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:09:29, skipping insertion in model container [2024-11-16 18:09:29,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:09:29" (3/3) ... [2024-11-16 18:09:29,206 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-15.i [2024-11-16 18:09:29,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:09:29,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:09:29,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:09:29,287 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;@7f62810f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:09:29,288 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:09:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 18:09:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:09:29,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:29,305 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:29,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:29,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1145844083, now seen corresponding path program 1 times [2024-11-16 18:09:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70140087] [2024-11-16 18:09:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:29,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:29,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70140087] [2024-11-16 18:09:29,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70140087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:29,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:29,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:09:29,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341593211] [2024-11-16 18:09:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:29,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:09:29,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:29,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:09:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:09:29,827 INFO L87 Difference]: Start difference. First operand has 116 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:29,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:29,866 INFO L93 Difference]: Finished difference Result 224 states and 343 transitions. [2024-11-16 18:09:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:09:29,869 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-16 18:09:29,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:29,878 INFO L225 Difference]: With dead ends: 224 [2024-11-16 18:09:29,878 INFO L226 Difference]: Without dead ends: 111 [2024-11-16 18:09:29,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 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 18:09:29,889 INFO L432 NwaCegarLoop]: 159 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, 159 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 18:09:29,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:09:29,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-16 18:09:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-16 18:09:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-16 18:09:29,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-16 18:09:29,936 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 117 [2024-11-16 18:09:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:29,937 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-16 18:09:29,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-16 18:09:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 18:09:29,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:29,944 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:29,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:09:29,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:29,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:29,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1918946372, now seen corresponding path program 1 times [2024-11-16 18:09:29,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:29,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370966055] [2024-11-16 18:09:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:30,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:30,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370966055] [2024-11-16 18:09:30,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370966055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:30,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:30,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840305408] [2024-11-16 18:09:30,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:30,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:30,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:30,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:30,761 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:31,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:31,021 INFO L93 Difference]: Finished difference Result 437 states and 631 transitions. [2024-11-16 18:09:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:09:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-16 18:09:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:31,028 INFO L225 Difference]: With dead ends: 437 [2024-11-16 18:09:31,029 INFO L226 Difference]: Without dead ends: 329 [2024-11-16 18:09:31,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:09:31,032 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 308 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:31,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 990 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:09:31,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-16 18:09:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 216. [2024-11-16 18:09:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 189 states have (on average 1.3968253968253967) internal successors, (264), 189 states have internal predecessors, (264), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-16 18:09:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 312 transitions. [2024-11-16 18:09:31,073 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 312 transitions. Word has length 117 [2024-11-16 18:09:31,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:31,073 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 312 transitions. [2024-11-16 18:09:31,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2024-11-16 18:09:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:09:31,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:31,080 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:31,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:09:31,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:31,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1857341566, now seen corresponding path program 1 times [2024-11-16 18:09:31,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:31,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941418906] [2024-11-16 18:09:31,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:31,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:31,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941418906] [2024-11-16 18:09:31,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941418906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:31,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:31,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:09:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572865633] [2024-11-16 18:09:31,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:31,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:09:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:09:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:09:31,611 INFO L87 Difference]: Start difference. First operand 216 states and 312 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:31,714 INFO L93 Difference]: Finished difference Result 599 states and 864 transitions. [2024-11-16 18:09:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:09:31,715 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-16 18:09:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:31,717 INFO L225 Difference]: With dead ends: 599 [2024-11-16 18:09:31,718 INFO L226 Difference]: Without dead ends: 386 [2024-11-16 18:09:31,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:09:31,724 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 116 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:31,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 762 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-16 18:09:31,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2024-11-16 18:09:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 336 states have (on average 1.3988095238095237) internal successors, (470), 338 states have internal predecessors, (470), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 18:09:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 550 transitions. [2024-11-16 18:09:31,772 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 550 transitions. Word has length 119 [2024-11-16 18:09:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:31,773 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 550 transitions. [2024-11-16 18:09:31,773 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, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:31,773 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 550 transitions. [2024-11-16 18:09:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 18:09:31,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:31,777 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:31,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:09:31,778 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:31,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1168867746, now seen corresponding path program 1 times [2024-11-16 18:09:31,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:31,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68086991] [2024-11-16 18:09:31,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:31,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:31,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:32,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68086991] [2024-11-16 18:09:32,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68086991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:32,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:32,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:09:32,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789753564] [2024-11-16 18:09:32,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:32,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:09:32,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:32,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:09:32,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:09:32,011 INFO L87 Difference]: Start difference. First operand 381 states and 550 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:32,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:32,069 INFO L93 Difference]: Finished difference Result 764 states and 1102 transitions. [2024-11-16 18:09:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:09:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-16 18:09:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:32,078 INFO L225 Difference]: With dead ends: 764 [2024-11-16 18:09:32,078 INFO L226 Difference]: Without dead ends: 386 [2024-11-16 18:09:32,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 18:09:32,083 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 107 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:32,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 525 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:09:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-16 18:09:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2024-11-16 18:09:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 336 states have (on average 1.3928571428571428) internal successors, (468), 338 states have internal predecessors, (468), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-16 18:09:32,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 548 transitions. [2024-11-16 18:09:32,111 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 548 transitions. Word has length 119 [2024-11-16 18:09:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:32,112 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 548 transitions. [2024-11-16 18:09:32,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 548 transitions. [2024-11-16 18:09:32,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:09:32,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:32,114 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:32,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:09:32,115 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:32,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1987883604, now seen corresponding path program 1 times [2024-11-16 18:09:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585685925] [2024-11-16 18:09:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:32,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:32,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:32,530 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:32,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:32,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585685925] [2024-11-16 18:09:32,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585685925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:32,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:32,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:09:32,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478632185] [2024-11-16 18:09:32,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:32,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:09:32,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:32,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:09:32,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:09:32,533 INFO L87 Difference]: Start difference. First operand 381 states and 548 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:32,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:32,671 INFO L93 Difference]: Finished difference Result 781 states and 1124 transitions. [2024-11-16 18:09:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:09:32,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-16 18:09:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:32,676 INFO L225 Difference]: With dead ends: 781 [2024-11-16 18:09:32,676 INFO L226 Difference]: Without dead ends: 587 [2024-11-16 18:09:32,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:09:32,679 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 181 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:32,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 722 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:32,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-16 18:09:32,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 566. [2024-11-16 18:09:32,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 499 states have (on average 1.3947895791583167) internal successors, (696), 502 states have internal predecessors, (696), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:09:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 816 transitions. [2024-11-16 18:09:32,715 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 816 transitions. Word has length 120 [2024-11-16 18:09:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:32,716 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 816 transitions. [2024-11-16 18:09:32,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 816 transitions. [2024-11-16 18:09:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:09:32,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:32,721 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:32,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 18:09:32,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:32,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:32,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1776532691, now seen corresponding path program 1 times [2024-11-16 18:09:32,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:32,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293411117] [2024-11-16 18:09:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:32,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:33,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:33,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293411117] [2024-11-16 18:09:33,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293411117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:33,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:33,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:33,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012278160] [2024-11-16 18:09:33,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:33,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:33,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:33,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:33,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:33,270 INFO L87 Difference]: Start difference. First operand 566 states and 816 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:33,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:33,411 INFO L93 Difference]: Finished difference Result 1461 states and 2083 transitions. [2024-11-16 18:09:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:09:33,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-16 18:09:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:33,417 INFO L225 Difference]: With dead ends: 1461 [2024-11-16 18:09:33,417 INFO L226 Difference]: Without dead ends: 898 [2024-11-16 18:09:33,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:09:33,419 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 73 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:33,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 733 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:33,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-16 18:09:33,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 885. [2024-11-16 18:09:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 800 states have (on average 1.385) internal successors, (1108), 809 states have internal predecessors, (1108), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 63 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-16 18:09:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1252 transitions. [2024-11-16 18:09:33,461 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1252 transitions. Word has length 120 [2024-11-16 18:09:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:33,464 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1252 transitions. [2024-11-16 18:09:33,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1252 transitions. [2024-11-16 18:09:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:09:33,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:33,467 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:33,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 18:09:33,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:33,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -463327787, now seen corresponding path program 1 times [2024-11-16 18:09:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423989105] [2024-11-16 18:09:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:33,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:33,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423989105] [2024-11-16 18:09:33,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423989105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:33,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:33,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:33,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158922153] [2024-11-16 18:09:33,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:33,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:33,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:33,723 INFO L87 Difference]: Start difference. First operand 885 states and 1252 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:33,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:33,889 INFO L93 Difference]: Finished difference Result 2274 states and 3221 transitions. [2024-11-16 18:09:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:09:33,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-16 18:09:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:33,898 INFO L225 Difference]: With dead ends: 2274 [2024-11-16 18:09:33,898 INFO L226 Difference]: Without dead ends: 1392 [2024-11-16 18:09:33,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:09:33,902 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 148 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:33,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1116 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:33,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-11-16 18:09:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1389. [2024-11-16 18:09:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1256 states have (on average 1.3821656050955413) internal successors, (1736), 1268 states have internal predecessors, (1736), 114 states have call successors, (114), 18 states have call predecessors, (114), 18 states have return successors, (114), 102 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-16 18:09:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1964 transitions. [2024-11-16 18:09:33,972 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1964 transitions. Word has length 120 [2024-11-16 18:09:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:33,973 INFO L471 AbstractCegarLoop]: Abstraction has 1389 states and 1964 transitions. [2024-11-16 18:09:33,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1964 transitions. [2024-11-16 18:09:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:09:33,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:33,976 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:33,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 18:09:33,977 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:33,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash -216846766, now seen corresponding path program 1 times [2024-11-16 18:09:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920078165] [2024-11-16 18:09:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:35,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920078165] [2024-11-16 18:09:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920078165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:35,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:35,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-16 18:09:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788719624] [2024-11-16 18:09:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 18:09:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:35,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 18:09:35,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-16 18:09:35,180 INFO L87 Difference]: Start difference. First operand 1389 states and 1964 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:36,659 INFO L93 Difference]: Finished difference Result 4154 states and 5894 transitions. [2024-11-16 18:09:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 18:09:36,660 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2024-11-16 18:09:36,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:36,675 INFO L225 Difference]: With dead ends: 4154 [2024-11-16 18:09:36,675 INFO L226 Difference]: Without dead ends: 3222 [2024-11-16 18:09:36,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=564, Unknown=0, NotChecked=0, Total=812 [2024-11-16 18:09:36,681 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 788 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:36,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 2627 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 18:09:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2024-11-16 18:09:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 1407. [2024-11-16 18:09:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 1274 states have (on average 1.3830455259026688) internal successors, (1762), 1286 states have internal predecessors, (1762), 114 states have call successors, (114), 18 states have call predecessors, (114), 18 states have return successors, (114), 102 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-16 18:09:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1990 transitions. [2024-11-16 18:09:36,797 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1990 transitions. Word has length 120 [2024-11-16 18:09:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:36,798 INFO L471 AbstractCegarLoop]: Abstraction has 1407 states and 1990 transitions. [2024-11-16 18:09:36,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1990 transitions. [2024-11-16 18:09:36,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 18:09:36,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:36,801 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:36,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 18:09:36,801 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:36,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash -283853519, now seen corresponding path program 1 times [2024-11-16 18:09:36,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:36,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786175721] [2024-11-16 18:09:36,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:36,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:37,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:37,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786175721] [2024-11-16 18:09:37,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786175721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:37,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:37,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:37,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806929077] [2024-11-16 18:09:37,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:37,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:37,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:37,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:37,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:37,186 INFO L87 Difference]: Start difference. First operand 1407 states and 1990 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:37,383 INFO L93 Difference]: Finished difference Result 2383 states and 3342 transitions. [2024-11-16 18:09:37,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:09:37,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-16 18:09:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:37,390 INFO L225 Difference]: With dead ends: 2383 [2024-11-16 18:09:37,391 INFO L226 Difference]: Without dead ends: 1439 [2024-11-16 18:09:37,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:09:37,395 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 158 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:37,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 790 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2024-11-16 18:09:37,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1043. [2024-11-16 18:09:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 928 states have (on average 1.3825431034482758) internal successors, (1283), 931 states have internal predecessors, (1283), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1475 transitions. [2024-11-16 18:09:37,493 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1475 transitions. Word has length 120 [2024-11-16 18:09:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:37,494 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1475 transitions. [2024-11-16 18:09:37,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1475 transitions. [2024-11-16 18:09:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:09:37,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:37,496 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:37,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 18:09:37,496 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:37,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:37,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1853204443, now seen corresponding path program 1 times [2024-11-16 18:09:37,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:37,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657853650] [2024-11-16 18:09:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:37,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:37,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:37,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657853650] [2024-11-16 18:09:37,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657853650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:37,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:37,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:37,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263195352] [2024-11-16 18:09:37,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:37,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:37,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:37,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:37,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:37,895 INFO L87 Difference]: Start difference. First operand 1043 states and 1475 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:38,060 INFO L93 Difference]: Finished difference Result 2471 states and 3456 transitions. [2024-11-16 18:09:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:09:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-16 18:09:38,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:38,067 INFO L225 Difference]: With dead ends: 2471 [2024-11-16 18:09:38,067 INFO L226 Difference]: Without dead ends: 1431 [2024-11-16 18:09:38,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:09:38,070 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 79 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:38,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 692 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-11-16 18:09:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1039. [2024-11-16 18:09:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 924 states have (on average 1.3733766233766234) internal successors, (1269), 927 states have internal predecessors, (1269), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:38,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1461 transitions. [2024-11-16 18:09:38,160 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1461 transitions. Word has length 121 [2024-11-16 18:09:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:38,161 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1461 transitions. [2024-11-16 18:09:38,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1461 transitions. [2024-11-16 18:09:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:09:38,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:38,163 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:38,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 18:09:38,163 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:38,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:38,164 INFO L85 PathProgramCache]: Analyzing trace with hash 287692927, now seen corresponding path program 1 times [2024-11-16 18:09:38,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:38,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651499709] [2024-11-16 18:09:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:38,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:38,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:38,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651499709] [2024-11-16 18:09:38,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651499709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:38,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:38,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027523120] [2024-11-16 18:09:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:38,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:38,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:38,482 INFO L87 Difference]: Start difference. First operand 1039 states and 1461 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:38,640 INFO L93 Difference]: Finished difference Result 2150 states and 3010 transitions. [2024-11-16 18:09:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:09:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-16 18:09:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:38,646 INFO L225 Difference]: With dead ends: 2150 [2024-11-16 18:09:38,646 INFO L226 Difference]: Without dead ends: 1114 [2024-11-16 18:09:38,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:09:38,649 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 81 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:38,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 940 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-11-16 18:09:38,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 955. [2024-11-16 18:09:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 840 states have (on average 1.3726190476190476) internal successors, (1153), 843 states have internal predecessors, (1153), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1345 transitions. [2024-11-16 18:09:38,719 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1345 transitions. Word has length 121 [2024-11-16 18:09:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:38,720 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1345 transitions. [2024-11-16 18:09:38,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1345 transitions. [2024-11-16 18:09:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:09:38,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:38,722 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:38,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 18:09:38,722 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:38,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash -47228710, now seen corresponding path program 1 times [2024-11-16 18:09:38,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:38,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408297640] [2024-11-16 18:09:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:38,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:39,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408297640] [2024-11-16 18:09:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408297640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:39,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:39,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 18:09:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036363763] [2024-11-16 18:09:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:39,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 18:09:39,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:39,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 18:09:39,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 18:09:39,130 INFO L87 Difference]: Start difference. First operand 955 states and 1345 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:39,613 INFO L93 Difference]: Finished difference Result 2043 states and 2868 transitions. [2024-11-16 18:09:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 18:09:39,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-16 18:09:39,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:39,619 INFO L225 Difference]: With dead ends: 2043 [2024-11-16 18:09:39,619 INFO L226 Difference]: Without dead ends: 1091 [2024-11-16 18:09:39,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:09:39,622 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 370 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:39,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1057 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:09:39,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2024-11-16 18:09:39,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 962. [2024-11-16 18:09:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 847 states have (on average 1.370720188902007) internal successors, (1161), 850 states have internal predecessors, (1161), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1353 transitions. [2024-11-16 18:09:39,691 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1353 transitions. Word has length 121 [2024-11-16 18:09:39,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:39,692 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1353 transitions. [2024-11-16 18:09:39,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1353 transitions. [2024-11-16 18:09:39,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 18:09:39,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:39,694 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:39,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 18:09:39,694 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:39,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:39,695 INFO L85 PathProgramCache]: Analyzing trace with hash 645872987, now seen corresponding path program 1 times [2024-11-16 18:09:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104132931] [2024-11-16 18:09:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:40,517 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:40,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:40,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104132931] [2024-11-16 18:09:40,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104132931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:40,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:40,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:09:40,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916715930] [2024-11-16 18:09:40,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:40,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:09:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:09:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:09:40,520 INFO L87 Difference]: Start difference. First operand 962 states and 1353 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:41,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:41,679 INFO L93 Difference]: Finished difference Result 2102 states and 2949 transitions. [2024-11-16 18:09:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:09:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-16 18:09:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:41,685 INFO L225 Difference]: With dead ends: 2102 [2024-11-16 18:09:41,686 INFO L226 Difference]: Without dead ends: 1143 [2024-11-16 18:09:41,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:09:41,688 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 344 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:41,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 2448 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:09:41,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-16 18:09:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 972. [2024-11-16 18:09:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 857 states have (on average 1.368728121353559) internal successors, (1173), 860 states have internal predecessors, (1173), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1365 transitions. [2024-11-16 18:09:41,754 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1365 transitions. Word has length 121 [2024-11-16 18:09:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:41,754 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1365 transitions. [2024-11-16 18:09:41,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1365 transitions. [2024-11-16 18:09:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:09:41,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:41,756 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:41,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 18:09:41,756 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:41,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash 864618999, now seen corresponding path program 1 times [2024-11-16 18:09:41,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:41,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817232420] [2024-11-16 18:09:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:41,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:42,099 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:42,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:42,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817232420] [2024-11-16 18:09:42,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817232420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:42,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:42,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:09:42,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423370228] [2024-11-16 18:09:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:42,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:09:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:42,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:09:42,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:09:42,102 INFO L87 Difference]: Start difference. First operand 972 states and 1365 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:42,466 INFO L93 Difference]: Finished difference Result 2058 states and 2883 transitions. [2024-11-16 18:09:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:09:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-16 18:09:42,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:42,476 INFO L225 Difference]: With dead ends: 2058 [2024-11-16 18:09:42,476 INFO L226 Difference]: Without dead ends: 1089 [2024-11-16 18:09:42,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:09:42,479 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 250 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:42,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1060 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 18:09:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-11-16 18:09:42,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 982. [2024-11-16 18:09:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 867 states have (on average 1.3690888119953863) internal successors, (1187), 870 states have internal predecessors, (1187), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1379 transitions. [2024-11-16 18:09:42,548 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1379 transitions. Word has length 122 [2024-11-16 18:09:42,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:42,549 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1379 transitions. [2024-11-16 18:09:42,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1379 transitions. [2024-11-16 18:09:42,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 18:09:42,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:42,550 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:42,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 18:09:42,551 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:42,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:42,551 INFO L85 PathProgramCache]: Analyzing trace with hash 875935126, now seen corresponding path program 1 times [2024-11-16 18:09:42,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:42,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858390139] [2024-11-16 18:09:42,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:42,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:43,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:43,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858390139] [2024-11-16 18:09:43,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858390139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:43,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:43,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:09:43,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87728001] [2024-11-16 18:09:43,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:43,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:09:43,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:43,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:09:43,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:09:43,238 INFO L87 Difference]: Start difference. First operand 982 states and 1379 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:44,262 INFO L93 Difference]: Finished difference Result 2127 states and 2979 transitions. [2024-11-16 18:09:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 18:09:44,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-16 18:09:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:44,269 INFO L225 Difference]: With dead ends: 2127 [2024-11-16 18:09:44,269 INFO L226 Difference]: Without dead ends: 1148 [2024-11-16 18:09:44,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-16 18:09:44,274 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 493 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:44,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 2153 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 18:09:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2024-11-16 18:09:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 972. [2024-11-16 18:09:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 857 states have (on average 1.367561260210035) internal successors, (1172), 860 states have internal predecessors, (1172), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1364 transitions. [2024-11-16 18:09:44,348 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1364 transitions. Word has length 122 [2024-11-16 18:09:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:44,349 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1364 transitions. [2024-11-16 18:09:44,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1364 transitions. [2024-11-16 18:09:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:09:44,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:44,362 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:44,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 18:09:44,363 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:44,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:44,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1879098303, now seen corresponding path program 1 times [2024-11-16 18:09:44,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:44,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995256505] [2024-11-16 18:09:44,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:44,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:45,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995256505] [2024-11-16 18:09:45,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995256505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:45,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:45,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:09:45,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233482441] [2024-11-16 18:09:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:45,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:09:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:09:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:09:45,258 INFO L87 Difference]: Start difference. First operand 972 states and 1364 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:46,564 INFO L93 Difference]: Finished difference Result 2032 states and 2847 transitions. [2024-11-16 18:09:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:09:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2024-11-16 18:09:46,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:46,572 INFO L225 Difference]: With dead ends: 2032 [2024-11-16 18:09:46,572 INFO L226 Difference]: Without dead ends: 1378 [2024-11-16 18:09:46,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:09:46,574 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 363 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:46,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 2551 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 18:09:46,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-11-16 18:09:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1014. [2024-11-16 18:09:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 899 states have (on average 1.3648498331479422) internal successors, (1227), 902 states have internal predecessors, (1227), 96 states have call successors, (96), 18 states have call predecessors, (96), 18 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-16 18:09:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1419 transitions. [2024-11-16 18:09:46,653 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1419 transitions. Word has length 123 [2024-11-16 18:09:46,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:46,654 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1419 transitions. [2024-11-16 18:09:46,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:46,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1419 transitions. [2024-11-16 18:09:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:09:46,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:46,656 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:46,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 18:09:46,656 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:46,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:46,657 INFO L85 PathProgramCache]: Analyzing trace with hash -917484286, now seen corresponding path program 1 times [2024-11-16 18:09:46,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:46,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696110851] [2024-11-16 18:09:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:46,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:47,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:47,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:47,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696110851] [2024-11-16 18:09:47,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696110851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:47,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:47,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:09:47,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695906191] [2024-11-16 18:09:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:47,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:09:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:47,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:09:47,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:09:47,493 INFO L87 Difference]: Start difference. First operand 1014 states and 1419 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:48,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:48,749 INFO L93 Difference]: Finished difference Result 2759 states and 3867 transitions. [2024-11-16 18:09:48,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 18:09:48,750 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2024-11-16 18:09:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:48,760 INFO L225 Difference]: With dead ends: 2759 [2024-11-16 18:09:48,760 INFO L226 Difference]: Without dead ends: 2063 [2024-11-16 18:09:48,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-16 18:09:48,764 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 383 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:48,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 2328 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:09:48,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-11-16 18:09:48,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1818. [2024-11-16 18:09:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1597 states have (on average 1.3663118346900438) internal successors, (2182), 1604 states have internal predecessors, (2182), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2550 transitions. [2024-11-16 18:09:48,913 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2550 transitions. Word has length 123 [2024-11-16 18:09:48,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:48,914 INFO L471 AbstractCegarLoop]: Abstraction has 1818 states and 2550 transitions. [2024-11-16 18:09:48,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:48,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2550 transitions. [2024-11-16 18:09:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:09:48,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:48,916 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:48,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 18:09:48,916 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:48,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1201571815, now seen corresponding path program 1 times [2024-11-16 18:09:48,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:48,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669194621] [2024-11-16 18:09:48,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:48,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:49,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:49,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669194621] [2024-11-16 18:09:49,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669194621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:49,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:49,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:09:49,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878180733] [2024-11-16 18:09:49,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:49,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:09:49,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:49,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:09:49,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:09:49,222 INFO L87 Difference]: Start difference. First operand 1818 states and 2550 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:49,448 INFO L93 Difference]: Finished difference Result 3693 states and 5170 transitions. [2024-11-16 18:09:49,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:09:49,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 123 [2024-11-16 18:09:49,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:49,457 INFO L225 Difference]: With dead ends: 3693 [2024-11-16 18:09:49,458 INFO L226 Difference]: Without dead ends: 1878 [2024-11-16 18:09:49,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 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 18:09:49,462 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 115 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:49,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1415 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-16 18:09:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1855. [2024-11-16 18:09:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1634 states have (on average 1.3561811505507957) internal successors, (2216), 1641 states have internal predecessors, (2216), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2584 transitions. [2024-11-16 18:09:49,608 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2584 transitions. Word has length 123 [2024-11-16 18:09:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:49,608 INFO L471 AbstractCegarLoop]: Abstraction has 1855 states and 2584 transitions. [2024-11-16 18:09:49,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2584 transitions. [2024-11-16 18:09:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 18:09:49,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:49,611 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:49,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 18:09:49,611 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:49,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash 43192666, now seen corresponding path program 1 times [2024-11-16 18:09:49,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:49,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322340085] [2024-11-16 18:09:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:49,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:50,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:50,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322340085] [2024-11-16 18:09:50,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322340085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:50,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:50,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:09:50,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746292450] [2024-11-16 18:09:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:50,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:09:50,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:50,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:09:50,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:09:50,049 INFO L87 Difference]: Start difference. First operand 1855 states and 2584 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:50,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:50,225 INFO L93 Difference]: Finished difference Result 3805 states and 5302 transitions. [2024-11-16 18:09:50,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:09:50,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-16 18:09:50,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:50,235 INFO L225 Difference]: With dead ends: 3805 [2024-11-16 18:09:50,235 INFO L226 Difference]: Without dead ends: 1953 [2024-11-16 18:09:50,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 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 18:09:50,240 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 55 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:50,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 938 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:09:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2024-11-16 18:09:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1856. [2024-11-16 18:09:50,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1635 states have (on average 1.3553516819571865) internal successors, (2216), 1642 states have internal predecessors, (2216), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:50,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2584 transitions. [2024-11-16 18:09:50,374 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2584 transitions. Word has length 123 [2024-11-16 18:09:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:50,375 INFO L471 AbstractCegarLoop]: Abstraction has 1856 states and 2584 transitions. [2024-11-16 18:09:50,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:09:50,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2584 transitions. [2024-11-16 18:09:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:09:50,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:50,377 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:50,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 18:09:50,377 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:50,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1775080338, now seen corresponding path program 1 times [2024-11-16 18:09:50,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:50,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852145285] [2024-11-16 18:09:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:50,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:51,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:51,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852145285] [2024-11-16 18:09:51,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852145285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:51,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:51,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:09:51,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929819737] [2024-11-16 18:09:51,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:51,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:09:51,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:09:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:09:51,181 INFO L87 Difference]: Start difference. First operand 1856 states and 2584 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:52,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:52,519 INFO L93 Difference]: Finished difference Result 3756 states and 5225 transitions. [2024-11-16 18:09:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 18:09:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-16 18:09:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:52,540 INFO L225 Difference]: With dead ends: 3756 [2024-11-16 18:09:52,541 INFO L226 Difference]: Without dead ends: 2215 [2024-11-16 18:09:52,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-16 18:09:52,547 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 466 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:52,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 1874 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 18:09:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2024-11-16 18:09:52,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 1866. [2024-11-16 18:09:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1645 states have (on average 1.355015197568389) internal successors, (2229), 1652 states have internal predecessors, (2229), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2597 transitions. [2024-11-16 18:09:52,703 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2597 transitions. Word has length 124 [2024-11-16 18:09:52,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:52,703 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2597 transitions. [2024-11-16 18:09:52,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:09:52,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2597 transitions. [2024-11-16 18:09:52,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:09:52,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:52,705 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:52,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 18:09:52,709 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:52,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:52,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1520343793, now seen corresponding path program 1 times [2024-11-16 18:09:52,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:52,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436847132] [2024-11-16 18:09:52,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:52,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:53,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:53,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436847132] [2024-11-16 18:09:53,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436847132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:53,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:53,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:09:53,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054942016] [2024-11-16 18:09:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:53,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:09:53,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:53,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:09:53,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:09:53,962 INFO L87 Difference]: Start difference. First operand 1866 states and 2597 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-16 18:09:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:57,444 INFO L93 Difference]: Finished difference Result 3774 states and 5246 transitions. [2024-11-16 18:09:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 18:09:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) Word has length 124 [2024-11-16 18:09:57,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:57,455 INFO L225 Difference]: With dead ends: 3774 [2024-11-16 18:09:57,455 INFO L226 Difference]: Without dead ends: 2223 [2024-11-16 18:09:57,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2024-11-16 18:09:57,460 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 463 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2074 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:57,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2074 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 18:09:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2024-11-16 18:09:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 1858. [2024-11-16 18:09:57,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1637 states have (on average 1.3549175320708613) internal successors, (2218), 1644 states have internal predecessors, (2218), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2586 transitions. [2024-11-16 18:09:57,625 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2586 transitions. Word has length 124 [2024-11-16 18:09:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:57,627 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 2586 transitions. [2024-11-16 18:09:57,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-16 18:09:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2586 transitions. [2024-11-16 18:09:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:09:57,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:57,629 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:57,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 18:09:57,630 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:57,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1785939679, now seen corresponding path program 1 times [2024-11-16 18:09:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520844751] [2024-11-16 18:09:57,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:57,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:58,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:58,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520844751] [2024-11-16 18:09:58,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520844751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:58,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:58,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 18:09:58,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899221045] [2024-11-16 18:09:58,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:58,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 18:09:58,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:58,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 18:09:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-16 18:09:58,205 INFO L87 Difference]: Start difference. First operand 1858 states and 2586 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:09:58,777 INFO L93 Difference]: Finished difference Result 3836 states and 5331 transitions. [2024-11-16 18:09:58,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:09:58,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-16 18:09:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:09:58,790 INFO L225 Difference]: With dead ends: 3836 [2024-11-16 18:09:58,790 INFO L226 Difference]: Without dead ends: 1981 [2024-11-16 18:09:58,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:09:58,795 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 297 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:09:58,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1854 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:09:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2024-11-16 18:09:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1877. [2024-11-16 18:09:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1656 states have (on average 1.3544685990338163) internal successors, (2243), 1663 states have internal predecessors, (2243), 184 states have call successors, (184), 36 states have call predecessors, (184), 36 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:09:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2611 transitions. [2024-11-16 18:09:58,956 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2611 transitions. Word has length 124 [2024-11-16 18:09:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:09:58,956 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2611 transitions. [2024-11-16 18:09:58,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-16 18:09:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2611 transitions. [2024-11-16 18:09:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:09:58,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:09:58,960 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:09:58,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 18:09:58,960 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:09:58,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:09:58,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1656856960, now seen corresponding path program 1 times [2024-11-16 18:09:58,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:09:58,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11568537] [2024-11-16 18:09:58,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:09:58,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:09:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:09:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:09:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:09:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:09:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:09:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:09:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:09:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:09:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:09:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:09:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:09:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:09:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:09:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:09:59,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:09:59,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11568537] [2024-11-16 18:09:59,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11568537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:09:59,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:09:59,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 18:09:59,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876221910] [2024-11-16 18:09:59,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:09:59,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 18:09:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:09:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 18:09:59,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 18:09:59,904 INFO L87 Difference]: Start difference. First operand 1877 states and 2611 transitions. Second operand has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:10:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:10:01,511 INFO L93 Difference]: Finished difference Result 3894 states and 5410 transitions. [2024-11-16 18:10:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 18:10:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-16 18:10:01,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:10:01,519 INFO L225 Difference]: With dead ends: 3894 [2024-11-16 18:10:01,519 INFO L226 Difference]: Without dead ends: 2020 [2024-11-16 18:10:01,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-16 18:10:01,524 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1007 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:10:01,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 940 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 18:10:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2024-11-16 18:10:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1998. [2024-11-16 18:10:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1753 states have (on average 1.3525385054192813) internal successors, (2371), 1762 states have internal predecessors, (2371), 204 states have call successors, (204), 40 states have call predecessors, (204), 40 states have return successors, (204), 195 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-16 18:10:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2779 transitions. [2024-11-16 18:10:01,716 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2779 transitions. Word has length 124 [2024-11-16 18:10:01,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:10:01,718 INFO L471 AbstractCegarLoop]: Abstraction has 1998 states and 2779 transitions. [2024-11-16 18:10:01,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.444444444444445) internal successors, (67), 11 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-16 18:10:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2779 transitions. [2024-11-16 18:10:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:10:01,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:10:01,720 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:01,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 18:10:01,720 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:10:01,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:10:01,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1893262332, now seen corresponding path program 1 times [2024-11-16 18:10:01,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:10:01,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329336307] [2024-11-16 18:10:01,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:10:01,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:10:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:10:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:10:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:10:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:10:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:10:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:10:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:10:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:10:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:01,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:10:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:02,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:10:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:02,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:10:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:02,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:10:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:10:02,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:10:02,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329336307] [2024-11-16 18:10:02,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329336307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:10:02,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:10:02,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 18:10:02,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439953725] [2024-11-16 18:10:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:10:02,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 18:10:02,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:10:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 18:10:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 18:10:02,008 INFO L87 Difference]: Start difference. First operand 1998 states and 2779 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:10:02,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:10:02,243 INFO L93 Difference]: Finished difference Result 4153 states and 5761 transitions. [2024-11-16 18:10:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 18:10:02,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-16 18:10:02,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:10:02,251 INFO L225 Difference]: With dead ends: 4153 [2024-11-16 18:10:02,252 INFO L226 Difference]: Without dead ends: 2208 [2024-11-16 18:10:02,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 18:10:02,256 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 62 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 18:10:02,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 726 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 18:10:02,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2024-11-16 18:10:02,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2013. [2024-11-16 18:10:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2013 states, 1768 states have (on average 1.3433257918552035) internal successors, (2375), 1777 states have internal predecessors, (2375), 204 states have call successors, (204), 40 states have call predecessors, (204), 40 states have return successors, (204), 195 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-16 18:10:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 2783 transitions. [2024-11-16 18:10:02,478 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 2783 transitions. Word has length 124 [2024-11-16 18:10:02,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:10:02,479 INFO L471 AbstractCegarLoop]: Abstraction has 2013 states and 2783 transitions. [2024-11-16 18:10:02,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:10:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 2783 transitions. [2024-11-16 18:10:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:10:02,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:10:02,481 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:02,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 18:10:02,481 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:10:02,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:10:02,482 INFO L85 PathProgramCache]: Analyzing trace with hash 498923776, now seen corresponding path program 1 times [2024-11-16 18:10:02,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:10:02,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459004665] [2024-11-16 18:10:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:10:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:10:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:10:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:10:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:10:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:10:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:10:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:10:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:10:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:10:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:10:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:10:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:10:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:10:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:10:03,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:10:03,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459004665] [2024-11-16 18:10:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459004665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:10:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:10:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 18:10:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157905057] [2024-11-16 18:10:03,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:10:03,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 18:10:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:10:03,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 18:10:03,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 18:10:03,154 INFO L87 Difference]: Start difference. First operand 2013 states and 2783 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:10:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:10:03,681 INFO L93 Difference]: Finished difference Result 4003 states and 5521 transitions. [2024-11-16 18:10:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 18:10:03,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-16 18:10:03,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:10:03,689 INFO L225 Difference]: With dead ends: 4003 [2024-11-16 18:10:03,689 INFO L226 Difference]: Without dead ends: 2043 [2024-11-16 18:10:03,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:10:03,693 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 421 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:10:03,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1205 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 18:10:03,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2024-11-16 18:10:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 1905. [2024-11-16 18:10:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1682 states have (on average 1.340665873959572) internal successors, (2255), 1689 states have internal predecessors, (2255), 184 states have call successors, (184), 38 states have call predecessors, (184), 38 states have return successors, (184), 177 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-16 18:10:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2623 transitions. [2024-11-16 18:10:03,854 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2623 transitions. Word has length 124 [2024-11-16 18:10:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:10:03,854 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2623 transitions. [2024-11-16 18:10:03,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 9 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 18:10:03,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2623 transitions. [2024-11-16 18:10:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 18:10:03,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:10:03,859 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:10:03,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 18:10:03,860 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:10:03,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:10:03,860 INFO L85 PathProgramCache]: Analyzing trace with hash 628006495, now seen corresponding path program 1 times [2024-11-16 18:10:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:10:03,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254036767] [2024-11-16 18:10:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:10:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:10:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:10:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:10:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:10:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:10:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:10:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:10:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:10:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:10:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:10:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:10:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:10:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:10:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:10:27,200 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 18:10:27,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:10:27,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254036767] [2024-11-16 18:10:27,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254036767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:10:27,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:10:27,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 18:10:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011863911] [2024-11-16 18:10:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:10:27,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 18:10:27,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:10:27,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 18:10:27,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-16 18:10:27,203 INFO L87 Difference]: Start difference. First operand 1905 states and 2623 transitions. Second operand has 14 states, 13 states have (on average 5.153846153846154) internal successors, (67), 14 states have internal predecessors, (67), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12)