./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:37:33,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:37:33,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:37:33,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:37:33,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:37:33,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:37:33,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:37:33,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:37:33,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:37:33,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:37:33,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:37:33,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:37:33,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:37:33,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:37:33,255 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:37:33,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:37:33,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:37:33,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:37:33,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:37:33,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:37:33,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:37:33,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:37:33,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:37:33,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:37:33,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:37:33,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:37:33,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:37:33,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:37:33,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:37:33,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:37:33,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:37:33,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:37:33,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:37:33,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:37:33,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:37:33,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:37:33,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:37:33,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:37:33,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:37:33,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:37:33,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:37:33,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:37:33,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1d83a7aa7482f86e6852a22c01d45006c9d5171e3bfe65b1880a039304a6026 [2024-10-14 13:37:33,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:37:33,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:37:33,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:37:33,536 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:37:33,536 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:37:33,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-14 13:37:35,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:37:35,218 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:37:35,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-14 13:37:35,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c4f1edd/d03c8ca3bcba4259863091e0db6c9ea2/FLAGa145f4ea0 [2024-10-14 13:37:35,245 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33c4f1edd/d03c8ca3bcba4259863091e0db6c9ea2 [2024-10-14 13:37:35,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:37:35,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:37:35,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:37:35,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:37:35,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:37:35,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53073a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35, skipping insertion in model container [2024-10-14 13:37:35,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:37:35,436 WARN L248 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-ap_file-66.i[917,930] [2024-10-14 13:37:35,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:37:35,514 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:37:35,530 WARN L248 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-ap_file-66.i[917,930] [2024-10-14 13:37:35,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:37:35,586 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:37:35,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35 WrapperNode [2024-10-14 13:37:35,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:37:35,588 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:37:35,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:37:35,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:37:35,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,650 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 446 [2024-10-14 13:37:35,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:37:35,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:37:35,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:37:35,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:37:35,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,709 INFO L175 MemorySlicer]: Split 123 memory accesses to 6 slices as follows [2, 8, 8, 73, 7, 25]. 59 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 6, 1, 3]. The 16 writes are split as follows [0, 1, 3, 7, 1, 4]. [2024-10-14 13:37:35,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:37:35,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:37:35,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:37:35,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:37:35,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (1/1) ... [2024-10-14 13:37:35,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:37:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:37:35,789 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) [2024-10-14 13:37:35,794 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 [2024-10-14 13:37:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:37:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:37:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:37:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 13:37:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 13:37:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 13:37:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:37:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:37:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 13:37:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:37:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:37:36,012 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:37:36,015 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:37:36,546 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-10-14 13:37:36,546 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:37:36,596 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:37:36,597 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:37:36,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:37:36 BoogieIcfgContainer [2024-10-14 13:37:36,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:37:36,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:37:36,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:37:36,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:37:36,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:37:35" (1/3) ... [2024-10-14 13:37:36,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af69d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:37:36, skipping insertion in model container [2024-10-14 13:37:36,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:37:35" (2/3) ... [2024-10-14 13:37:36,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af69d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:37:36, skipping insertion in model container [2024-10-14 13:37:36,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:37:36" (3/3) ... [2024-10-14 13:37:36,608 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-66.i [2024-10-14 13:37:36,648 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:37:36,648 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:37:36,743 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:37:36,750 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;@46e66bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:37:36,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:37:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:37:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:36,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:36,771 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:36,771 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:36,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1512914370, now seen corresponding path program 1 times [2024-10-14 13:37:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:36,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452260642] [2024-10-14 13:37:36,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:37,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:37,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452260642] [2024-10-14 13:37:37,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452260642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:37,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:37,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:37:37,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123560062] [2024-10-14 13:37:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:37,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:37:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:37:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:37:37,262 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.4516129032258065) internal successors, (90), 63 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:37:37,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:37,313 INFO L93 Difference]: Finished difference Result 155 states and 248 transitions. [2024-10-14 13:37:37,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:37:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2024-10-14 13:37:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:37,327 INFO L225 Difference]: With dead ends: 155 [2024-10-14 13:37:37,327 INFO L226 Difference]: Without dead ends: 77 [2024-10-14 13:37:37,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:37:37,335 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:37,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-14 13:37:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-14 13:37:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 61 states have internal predecessors, (85), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:37:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2024-10-14 13:37:37,378 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 104 [2024-10-14 13:37:37,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:37,378 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2024-10-14 13:37:37,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:37:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2024-10-14 13:37:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:37,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:37,381 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:37,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:37:37,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:37,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:37,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2134161318, now seen corresponding path program 1 times [2024-10-14 13:37:37,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:37,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544489791] [2024-10-14 13:37:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:37,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:37,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544489791] [2024-10-14 13:37:37,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544489791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:37,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:37,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:37:37,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184709539] [2024-10-14 13:37:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:37,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:37:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:37:37,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:37:37,734 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:37,796 INFO L93 Difference]: Finished difference Result 156 states and 229 transitions. [2024-10-14 13:37:37,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:37:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:37:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:37,801 INFO L225 Difference]: With dead ends: 156 [2024-10-14 13:37:37,802 INFO L226 Difference]: Without dead ends: 80 [2024-10-14 13:37:37,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:37:37,804 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:37,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 311 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-14 13:37:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2024-10-14 13:37:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:37:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 115 transitions. [2024-10-14 13:37:37,819 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 115 transitions. Word has length 104 [2024-10-14 13:37:37,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:37,822 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 115 transitions. [2024-10-14 13:37:37,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 115 transitions. [2024-10-14 13:37:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:37,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:37,824 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:37,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:37:37,824 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:37,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:37,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2103547676, now seen corresponding path program 1 times [2024-10-14 13:37:37,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:37,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695461304] [2024-10-14 13:37:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:38,118 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:38,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:38,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695461304] [2024-10-14 13:37:38,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695461304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:38,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:38,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:37:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677798778] [2024-10-14 13:37:38,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:38,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:37:38,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:37:38,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:37:38,122 INFO L87 Difference]: Start difference. First operand 79 states and 115 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:38,158 INFO L93 Difference]: Finished difference Result 160 states and 233 transitions. [2024-10-14 13:37:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:37:38,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:37:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:38,160 INFO L225 Difference]: With dead ends: 160 [2024-10-14 13:37:38,160 INFO L226 Difference]: Without dead ends: 82 [2024-10-14 13:37:38,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:37:38,162 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:38,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 315 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-14 13:37:38,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-10-14 13:37:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 13:37:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-10-14 13:37:38,171 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 104 [2024-10-14 13:37:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:38,172 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-10-14 13:37:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-10-14 13:37:38,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:38,174 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:38,174 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:37:38,174 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:38,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:38,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2103488094, now seen corresponding path program 1 times [2024-10-14 13:37:38,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:38,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439565610] [2024-10-14 13:37:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:38,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:40,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:40,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439565610] [2024-10-14 13:37:40,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439565610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:40,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:40,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 13:37:40,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851872322] [2024-10-14 13:37:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:40,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 13:37:40,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:40,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 13:37:40,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:37:40,967 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:37:44,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:44,142 INFO L93 Difference]: Finished difference Result 483 states and 679 transitions. [2024-10-14 13:37:44,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 13:37:44,143 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2024-10-14 13:37:44,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:44,147 INFO L225 Difference]: With dead ends: 483 [2024-10-14 13:37:44,147 INFO L226 Difference]: Without dead ends: 403 [2024-10-14 13:37:44,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 13:37:44,150 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 1162 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:44,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 563 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 13:37:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-10-14 13:37:44,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 181. [2024-10-14 13:37:44,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 146 states have (on average 1.3630136986301369) internal successors, (199), 147 states have internal predecessors, (199), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-14 13:37:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 259 transitions. [2024-10-14 13:37:44,209 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 259 transitions. Word has length 104 [2024-10-14 13:37:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:44,213 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 259 transitions. [2024-10-14 13:37:44,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:37:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 259 transitions. [2024-10-14 13:37:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:44,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:44,215 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:44,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:37:44,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:44,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1845322656, now seen corresponding path program 1 times [2024-10-14 13:37:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602456339] [2024-10-14 13:37:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:44,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602456339] [2024-10-14 13:37:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602456339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:44,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:37:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630006082] [2024-10-14 13:37:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:44,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:37:44,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:44,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:37:44,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:37:44,567 INFO L87 Difference]: Start difference. First operand 181 states and 259 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:44,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:44,763 INFO L93 Difference]: Finished difference Result 382 states and 543 transitions. [2024-10-14 13:37:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:37:44,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:37:44,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:44,768 INFO L225 Difference]: With dead ends: 382 [2024-10-14 13:37:44,769 INFO L226 Difference]: Without dead ends: 264 [2024-10-14 13:37:44,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:37:44,771 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 57 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:44,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:37:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-14 13:37:44,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 187. [2024-10-14 13:37:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 152 states have (on average 1.361842105263158) internal successors, (207), 153 states have internal predecessors, (207), 30 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-14 13:37:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 267 transitions. [2024-10-14 13:37:44,805 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 267 transitions. Word has length 104 [2024-10-14 13:37:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:44,806 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 267 transitions. [2024-10-14 13:37:44,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 267 transitions. [2024-10-14 13:37:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:44,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:44,808 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:44,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:37:44,808 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:44,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:44,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1170410848, now seen corresponding path program 1 times [2024-10-14 13:37:44,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:44,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716530460] [2024-10-14 13:37:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:44,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:45,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716530460] [2024-10-14 13:37:45,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716530460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:45,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:45,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:37:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88695842] [2024-10-14 13:37:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:45,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:37:45,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:45,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:37:45,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:37:45,282 INFO L87 Difference]: Start difference. First operand 187 states and 267 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:45,598 INFO L93 Difference]: Finished difference Result 356 states and 503 transitions. [2024-10-14 13:37:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:37:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 104 [2024-10-14 13:37:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:45,600 INFO L225 Difference]: With dead ends: 356 [2024-10-14 13:37:45,600 INFO L226 Difference]: Without dead ends: 232 [2024-10-14 13:37:45,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:37:45,602 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 189 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:45,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 331 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:37:45,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-14 13:37:45,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 145. [2024-10-14 13:37:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 112 states have (on average 1.3125) internal successors, (147), 112 states have internal predecessors, (147), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:37:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 203 transitions. [2024-10-14 13:37:45,633 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 203 transitions. Word has length 104 [2024-10-14 13:37:45,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:45,634 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 203 transitions. [2024-10-14 13:37:45,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 203 transitions. [2024-10-14 13:37:45,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 13:37:45,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:45,636 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:45,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:37:45,636 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:45,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1428576286, now seen corresponding path program 1 times [2024-10-14 13:37:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:45,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190991953] [2024-10-14 13:37:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:46,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190991953] [2024-10-14 13:37:46,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190991953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:46,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:46,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:37:46,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081373849] [2024-10-14 13:37:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:46,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:37:46,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:37:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:37:46,805 INFO L87 Difference]: Start difference. First operand 145 states and 203 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:37:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:47,400 INFO L93 Difference]: Finished difference Result 296 states and 412 transitions. [2024-10-14 13:37:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:37:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 104 [2024-10-14 13:37:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:47,403 INFO L225 Difference]: With dead ends: 296 [2024-10-14 13:37:47,403 INFO L226 Difference]: Without dead ends: 206 [2024-10-14 13:37:47,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:37:47,404 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 216 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:47,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 892 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:37:47,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-14 13:37:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2024-10-14 13:37:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 159 states have internal predecessors, (206), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 282 transitions. [2024-10-14 13:37:47,449 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 282 transitions. Word has length 104 [2024-10-14 13:37:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:47,451 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 282 transitions. [2024-10-14 13:37:47,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:37:47,451 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 282 transitions. [2024-10-14 13:37:47,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:37:47,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:47,453 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:47,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:37:47,453 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:47,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1594273804, now seen corresponding path program 1 times [2024-10-14 13:37:47,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:47,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246166305] [2024-10-14 13:37:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:47,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:47,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246166305] [2024-10-14 13:37:47,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246166305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:47,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:47,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:37:47,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692408464] [2024-10-14 13:37:47,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:47,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:37:47,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:47,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:37:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:37:47,574 INFO L87 Difference]: Start difference. First operand 203 states and 282 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:47,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:47,620 INFO L93 Difference]: Finished difference Result 353 states and 492 transitions. [2024-10-14 13:37:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:37:47,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-10-14 13:37:47,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:47,623 INFO L225 Difference]: With dead ends: 353 [2024-10-14 13:37:47,623 INFO L226 Difference]: Without dead ends: 205 [2024-10-14 13:37:47,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:37:47,624 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:47,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-10-14 13:37:47,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2024-10-14 13:37:47,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 160 states have (on average 1.3) internal successors, (208), 161 states have internal predecessors, (208), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:47,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 284 transitions. [2024-10-14 13:37:47,667 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 284 transitions. Word has length 107 [2024-10-14 13:37:47,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:47,668 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 284 transitions. [2024-10-14 13:37:47,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:47,668 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 284 transitions. [2024-10-14 13:37:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-14 13:37:47,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:47,669 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:47,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:37:47,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:47,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:47,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1336108366, now seen corresponding path program 1 times [2024-10-14 13:37:47,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:47,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13725512] [2024-10-14 13:37:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:47,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:47,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13725512] [2024-10-14 13:37:47,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13725512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:47,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:47,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:37:47,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987683924] [2024-10-14 13:37:47,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:47,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:37:47,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:37:47,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:37:47,848 INFO L87 Difference]: Start difference. First operand 205 states and 284 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:47,918 INFO L93 Difference]: Finished difference Result 361 states and 500 transitions. [2024-10-14 13:37:47,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:37:47,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 107 [2024-10-14 13:37:47,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:47,920 INFO L225 Difference]: With dead ends: 361 [2024-10-14 13:37:47,920 INFO L226 Difference]: Without dead ends: 211 [2024-10-14 13:37:47,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:37:47,922 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:47,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 413 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:47,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-14 13:37:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-10-14 13:37:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2891566265060241) internal successors, (214), 167 states have internal predecessors, (214), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 290 transitions. [2024-10-14 13:37:47,963 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 290 transitions. Word has length 107 [2024-10-14 13:37:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:47,964 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 290 transitions. [2024-10-14 13:37:47,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 290 transitions. [2024-10-14 13:37:47,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 13:37:47,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:47,966 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:47,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:37:47,967 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:47,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash 476364943, now seen corresponding path program 1 times [2024-10-14 13:37:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:47,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925814846] [2024-10-14 13:37:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:47,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:48,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925814846] [2024-10-14 13:37:48,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925814846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:48,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:48,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:37:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740085777] [2024-10-14 13:37:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:48,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:37:48,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:37:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:37:48,348 INFO L87 Difference]: Start difference. First operand 211 states and 290 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:48,700 INFO L93 Difference]: Finished difference Result 527 states and 724 transitions. [2024-10-14 13:37:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:37:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-14 13:37:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:48,703 INFO L225 Difference]: With dead ends: 527 [2024-10-14 13:37:48,703 INFO L226 Difference]: Without dead ends: 371 [2024-10-14 13:37:48,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:37:48,705 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 125 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:48,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 374 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:37:48,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-14 13:37:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 231. [2024-10-14 13:37:48,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2956989247311828) internal successors, (241), 187 states have internal predecessors, (241), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 317 transitions. [2024-10-14 13:37:48,741 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 317 transitions. Word has length 109 [2024-10-14 13:37:48,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:48,741 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 317 transitions. [2024-10-14 13:37:48,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:48,742 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 317 transitions. [2024-10-14 13:37:48,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 13:37:48,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:48,743 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:48,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:37:48,743 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:48,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash -534752307, now seen corresponding path program 1 times [2024-10-14 13:37:48,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:48,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486346629] [2024-10-14 13:37:48,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:48,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:48,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:48,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486346629] [2024-10-14 13:37:48,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486346629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:48,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:48,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:37:48,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564125764] [2024-10-14 13:37:48,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:48,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:37:48,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:48,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:37:48,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:37:48,964 INFO L87 Difference]: Start difference. First operand 231 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:49,066 INFO L93 Difference]: Finished difference Result 473 states and 650 transitions. [2024-10-14 13:37:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:37:49,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-14 13:37:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:49,069 INFO L225 Difference]: With dead ends: 473 [2024-10-14 13:37:49,069 INFO L226 Difference]: Without dead ends: 317 [2024-10-14 13:37:49,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:37:49,070 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 46 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:49,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 446 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:37:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-10-14 13:37:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 253. [2024-10-14 13:37:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 208 states have (on average 1.3125) internal successors, (273), 209 states have internal predecessors, (273), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 349 transitions. [2024-10-14 13:37:49,111 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 349 transitions. Word has length 109 [2024-10-14 13:37:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:49,111 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 349 transitions. [2024-10-14 13:37:49,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 349 transitions. [2024-10-14 13:37:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 13:37:49,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:49,113 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:49,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:37:49,113 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:49,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:49,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1208255749, now seen corresponding path program 1 times [2024-10-14 13:37:49,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:49,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170738417] [2024-10-14 13:37:49,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:49,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:49,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:49,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170738417] [2024-10-14 13:37:49,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170738417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:49,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:49,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:37:49,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571426896] [2024-10-14 13:37:49,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:49,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:37:49,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:49,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:37:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:37:49,576 INFO L87 Difference]: Start difference. First operand 253 states and 349 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:49,853 INFO L93 Difference]: Finished difference Result 371 states and 507 transitions. [2024-10-14 13:37:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:37:49,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 109 [2024-10-14 13:37:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:49,856 INFO L225 Difference]: With dead ends: 371 [2024-10-14 13:37:49,856 INFO L226 Difference]: Without dead ends: 369 [2024-10-14 13:37:49,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:37:49,857 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 56 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:49,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 387 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:37:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-10-14 13:37:49,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 335. [2024-10-14 13:37:49,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 290 states have (on average 1.3482758620689654) internal successors, (391), 291 states have internal predecessors, (391), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 467 transitions. [2024-10-14 13:37:49,899 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 467 transitions. Word has length 109 [2024-10-14 13:37:49,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:49,900 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 467 transitions. [2024-10-14 13:37:49,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:37:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 467 transitions. [2024-10-14 13:37:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 13:37:49,901 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:49,902 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:49,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:37:49,903 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:49,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1208196167, now seen corresponding path program 1 times [2024-10-14 13:37:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:49,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837040613] [2024-10-14 13:37:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:49,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:37:50,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:50,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837040613] [2024-10-14 13:37:50,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837040613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:37:50,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:37:50,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:37:50,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21340946] [2024-10-14 13:37:50,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:37:50,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:37:50,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:50,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:37:50,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:37:50,399 INFO L87 Difference]: Start difference. First operand 335 states and 467 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:37:50,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:37:50,690 INFO L93 Difference]: Finished difference Result 669 states and 924 transitions. [2024-10-14 13:37:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:37:50,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-10-14 13:37:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:37:50,693 INFO L225 Difference]: With dead ends: 669 [2024-10-14 13:37:50,693 INFO L226 Difference]: Without dead ends: 419 [2024-10-14 13:37:50,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:37:50,695 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 299 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:37:50,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 302 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:37:50,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-14 13:37:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 381. [2024-10-14 13:37:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 336 states have (on average 1.3541666666666667) internal successors, (455), 337 states have internal predecessors, (455), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-14 13:37:50,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 531 transitions. [2024-10-14 13:37:50,736 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 531 transitions. Word has length 109 [2024-10-14 13:37:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:37:50,736 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 531 transitions. [2024-10-14 13:37:50,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:37:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 531 transitions. [2024-10-14 13:37:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 13:37:50,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:37:50,738 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:37:50,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:37:50,738 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:37:50,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:37:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1150937865, now seen corresponding path program 1 times [2024-10-14 13:37:50,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:37:50,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729776845] [2024-10-14 13:37:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:50,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:37:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:37:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:37:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:37:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:37:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:37:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:37:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:37:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:37:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:37:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:37:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:37:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:37:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:37:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:37:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-14 13:37:51,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:37:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729776845] [2024-10-14 13:37:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729776845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:37:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378770897] [2024-10-14 13:37:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:37:51,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:37:51,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:37:51,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:37:51,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:37:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:37:51,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 13:37:51,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:37:52,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-14 13:37:52,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-10-14 13:37:52,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:37:52,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 37 [2024-10-14 13:37:52,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 13:37:52,989 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2024-10-14 13:37:52,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 80 [2024-10-14 13:37:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 71 proven. 99 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-10-14 13:37:53,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:37:53,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:37:53,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 42 [2024-10-14 13:37:57,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378770897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:37:57,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 13:37:57,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 20 [2024-10-14 13:37:57,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339688835] [2024-10-14 13:37:57,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 13:37:57,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 13:37:57,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:37:57,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 13:37:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=418, Unknown=1, NotChecked=0, Total=506 [2024-10-14 13:37:57,485 INFO L87 Difference]: Start difference. First operand 381 states and 531 transitions. Second operand has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-10-14 13:38:02,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-14 13:38:06,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-14 13:38:10,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-14 13:38:15,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-14 13:38:15,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:15,228 INFO L93 Difference]: Finished difference Result 726 states and 989 transitions. [2024-10-14 13:38:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 13:38:15,229 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) Word has length 109 [2024-10-14 13:38:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:15,232 INFO L225 Difference]: With dead ends: 726 [2024-10-14 13:38:15,232 INFO L226 Difference]: Without dead ends: 412 [2024-10-14 13:38:15,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=327, Invalid=1078, Unknown=1, NotChecked=0, Total=1406 [2024-10-14 13:38:15,233 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 698 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 214 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:15,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 611 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 399 Invalid, 5 Unknown, 0 Unchecked, 17.2s Time] [2024-10-14 13:38:15,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-14 13:38:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 278. [2024-10-14 13:38:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.3070539419087137) internal successors, (315), 241 states have internal predecessors, (315), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 371 transitions. [2024-10-14 13:38:15,279 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 371 transitions. Word has length 109 [2024-10-14 13:38:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:15,279 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 371 transitions. [2024-10-14 13:38:15,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.333333333333333) internal successors, (78), 20 states have internal predecessors, (78), 9 states have call successors, (28), 4 states have call predecessors, (28), 6 states have return successors, (28), 7 states have call predecessors, (28), 9 states have call successors, (28) [2024-10-14 13:38:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 371 transitions. [2024-10-14 13:38:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 13:38:15,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:15,281 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:15,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 13:38:15,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 13:38:15,482 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:15,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1550086111, now seen corresponding path program 1 times [2024-10-14 13:38:15,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:15,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390302382] [2024-10-14 13:38:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:15,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:15,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:15,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390302382] [2024-10-14 13:38:15,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390302382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:15,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:15,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:38:15,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359884310] [2024-10-14 13:38:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:15,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:38:15,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:15,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:38:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:38:15,694 INFO L87 Difference]: Start difference. First operand 278 states and 371 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:15,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:15,781 INFO L93 Difference]: Finished difference Result 491 states and 653 transitions. [2024-10-14 13:38:15,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:38:15,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-14 13:38:15,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:15,784 INFO L225 Difference]: With dead ends: 491 [2024-10-14 13:38:15,784 INFO L226 Difference]: Without dead ends: 290 [2024-10-14 13:38:15,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:38:15,785 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:15,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 444 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:38:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-10-14 13:38:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278. [2024-10-14 13:38:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.2904564315352698) internal successors, (311), 241 states have internal predecessors, (311), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 367 transitions. [2024-10-14 13:38:15,822 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 367 transitions. Word has length 111 [2024-10-14 13:38:15,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:15,822 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 367 transitions. [2024-10-14 13:38:15,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 367 transitions. [2024-10-14 13:38:15,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 13:38:15,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:15,824 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:15,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:38:15,825 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:15,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:15,825 INFO L85 PathProgramCache]: Analyzing trace with hash 732437661, now seen corresponding path program 1 times [2024-10-14 13:38:15,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:15,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528438722] [2024-10-14 13:38:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:15,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:16,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:16,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528438722] [2024-10-14 13:38:16,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528438722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:16,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:16,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:38:16,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798335062] [2024-10-14 13:38:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:16,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:38:16,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:16,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:38:16,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:38:16,470 INFO L87 Difference]: Start difference. First operand 278 states and 367 transitions. Second operand has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:38:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:16,826 INFO L93 Difference]: Finished difference Result 470 states and 624 transitions. [2024-10-14 13:38:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:16,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 111 [2024-10-14 13:38:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:16,828 INFO L225 Difference]: With dead ends: 470 [2024-10-14 13:38:16,828 INFO L226 Difference]: Without dead ends: 278 [2024-10-14 13:38:16,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:38:16,829 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 200 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:16,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 239 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-10-14 13:38:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-10-14 13:38:16,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 241 states have (on average 1.2780082987551866) internal successors, (308), 241 states have internal predecessors, (308), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:16,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 364 transitions. [2024-10-14 13:38:16,868 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 364 transitions. Word has length 111 [2024-10-14 13:38:16,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:16,868 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 364 transitions. [2024-10-14 13:38:16,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.888888888888889) internal successors, (44), 10 states have internal predecessors, (44), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:38:16,868 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 364 transitions. [2024-10-14 13:38:16,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:38:16,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:16,869 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:16,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:38:16,870 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:16,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:16,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1258050976, now seen corresponding path program 1 times [2024-10-14 13:38:16,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671621365] [2024-10-14 13:38:16,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:16,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:17,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:17,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671621365] [2024-10-14 13:38:17,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671621365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:38:17,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038139314] [2024-10-14 13:38:17,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:17,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:38:17,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:17,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:38:17,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:38:17,341 INFO L87 Difference]: Start difference. First operand 278 states and 364 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:17,751 INFO L93 Difference]: Finished difference Result 494 states and 644 transitions. [2024-10-14 13:38:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:38:17,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 112 [2024-10-14 13:38:17,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:17,753 INFO L225 Difference]: With dead ends: 494 [2024-10-14 13:38:17,753 INFO L226 Difference]: Without dead ends: 302 [2024-10-14 13:38:17,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:38:17,754 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 154 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:17,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 537 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-14 13:38:17,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 279. [2024-10-14 13:38:17,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 242 states have (on average 1.2768595041322315) internal successors, (309), 242 states have internal predecessors, (309), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2024-10-14 13:38:17,796 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 365 transitions. Word has length 112 [2024-10-14 13:38:17,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:17,797 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 365 transitions. [2024-10-14 13:38:17,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 365 transitions. [2024-10-14 13:38:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:38:17,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:17,798 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:17,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:38:17,799 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:17,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:17,799 INFO L85 PathProgramCache]: Analyzing trace with hash 879133805, now seen corresponding path program 1 times [2024-10-14 13:38:17,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:17,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853458152] [2024-10-14 13:38:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:18,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:18,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853458152] [2024-10-14 13:38:18,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853458152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:18,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:18,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 13:38:18,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178653448] [2024-10-14 13:38:18,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:18,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:38:18,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:18,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:38:18,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:38:18,164 INFO L87 Difference]: Start difference. First operand 279 states and 365 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:18,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:18,352 INFO L93 Difference]: Finished difference Result 484 states and 632 transitions. [2024-10-14 13:38:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:18,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-14 13:38:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:18,355 INFO L225 Difference]: With dead ends: 484 [2024-10-14 13:38:18,355 INFO L226 Difference]: Without dead ends: 291 [2024-10-14 13:38:18,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:38:18,356 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 216 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:18,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 379 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:38:18,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-14 13:38:18,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 279. [2024-10-14 13:38:18,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 242 states have (on average 1.2727272727272727) internal successors, (308), 242 states have internal predecessors, (308), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 364 transitions. [2024-10-14 13:38:18,397 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 364 transitions. Word has length 114 [2024-10-14 13:38:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:18,398 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 364 transitions. [2024-10-14 13:38:18,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 364 transitions. [2024-10-14 13:38:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:38:18,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:18,399 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:18,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:38:18,400 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:18,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1580198383, now seen corresponding path program 1 times [2024-10-14 13:38:18,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:18,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467186271] [2024-10-14 13:38:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:18,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:19,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:19,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467186271] [2024-10-14 13:38:19,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467186271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:19,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:19,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:38:19,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687519728] [2024-10-14 13:38:19,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:19,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:38:19,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:19,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:38:19,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:38:19,340 INFO L87 Difference]: Start difference. First operand 279 states and 364 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:20,034 INFO L93 Difference]: Finished difference Result 695 states and 896 transitions. [2024-10-14 13:38:20,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:38:20,035 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 114 [2024-10-14 13:38:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:20,038 INFO L225 Difference]: With dead ends: 695 [2024-10-14 13:38:20,040 INFO L226 Difference]: Without dead ends: 502 [2024-10-14 13:38:20,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:38:20,042 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 198 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:20,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 860 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:38:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-10-14 13:38:20,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 415. [2024-10-14 13:38:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 360 states have (on average 1.2444444444444445) internal successors, (448), 360 states have internal predecessors, (448), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 532 transitions. [2024-10-14 13:38:20,113 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 532 transitions. Word has length 114 [2024-10-14 13:38:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:20,113 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 532 transitions. [2024-10-14 13:38:20,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 532 transitions. [2024-10-14 13:38:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:38:20,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:20,115 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:20,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:38:20,116 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:20,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1187171373, now seen corresponding path program 1 times [2024-10-14 13:38:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033263249] [2024-10-14 13:38:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:20,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:20,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033263249] [2024-10-14 13:38:20,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033263249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:20,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:38:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818229040] [2024-10-14 13:38:20,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:20,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:38:20,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:38:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:20,550 INFO L87 Difference]: Start difference. First operand 415 states and 532 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:20,893 INFO L93 Difference]: Finished difference Result 850 states and 1092 transitions. [2024-10-14 13:38:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-14 13:38:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:20,896 INFO L225 Difference]: With dead ends: 850 [2024-10-14 13:38:20,896 INFO L226 Difference]: Without dead ends: 528 [2024-10-14 13:38:20,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:38:20,897 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 243 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:20,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 765 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:38:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-14 13:38:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 484. [2024-10-14 13:38:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.2517482517482517) internal successors, (537), 429 states have internal predecessors, (537), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2024-10-14 13:38:20,967 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 621 transitions. Word has length 114 [2024-10-14 13:38:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:20,968 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 621 transitions. [2024-10-14 13:38:20,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 621 transitions. [2024-10-14 13:38:20,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:38:20,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:20,969 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:20,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 13:38:20,970 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:20,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:20,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1799053101, now seen corresponding path program 1 times [2024-10-14 13:38:20,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:20,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660021181] [2024-10-14 13:38:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:20,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:21,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660021181] [2024-10-14 13:38:21,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660021181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:21,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:38:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204635889] [2024-10-14 13:38:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:21,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:38:21,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:21,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:38:21,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:38:21,319 INFO L87 Difference]: Start difference. First operand 484 states and 621 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:21,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:21,603 INFO L93 Difference]: Finished difference Result 897 states and 1151 transitions. [2024-10-14 13:38:21,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:38:21,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2024-10-14 13:38:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:21,606 INFO L225 Difference]: With dead ends: 897 [2024-10-14 13:38:21,607 INFO L226 Difference]: Without dead ends: 510 [2024-10-14 13:38:21,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:38:21,608 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 158 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:21,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 526 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:38:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-10-14 13:38:21,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 474. [2024-10-14 13:38:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 419 states have (on average 1.243436754176611) internal successors, (521), 419 states have internal predecessors, (521), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 605 transitions. [2024-10-14 13:38:21,680 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 605 transitions. Word has length 114 [2024-10-14 13:38:21,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:21,680 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 605 transitions. [2024-10-14 13:38:21,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:21,680 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 605 transitions. [2024-10-14 13:38:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 13:38:21,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:21,682 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:21,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:38:21,682 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:21,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:21,682 INFO L85 PathProgramCache]: Analyzing trace with hash -869107773, now seen corresponding path program 1 times [2024-10-14 13:38:21,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:21,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690012604] [2024-10-14 13:38:21,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:21,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:21,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690012604] [2024-10-14 13:38:21,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690012604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:21,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:21,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:38:21,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727622349] [2024-10-14 13:38:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:21,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:38:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:38:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:38:21,995 INFO L87 Difference]: Start difference. First operand 474 states and 605 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:22,378 INFO L93 Difference]: Finished difference Result 771 states and 986 transitions. [2024-10-14 13:38:22,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:38:22,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-10-14 13:38:22,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:22,382 INFO L225 Difference]: With dead ends: 771 [2024-10-14 13:38:22,382 INFO L226 Difference]: Without dead ends: 550 [2024-10-14 13:38:22,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:38:22,383 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 123 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:22,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 401 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-14 13:38:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 476. [2024-10-14 13:38:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 421 states have (on average 1.2422802850356294) internal successors, (523), 421 states have internal predecessors, (523), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 607 transitions. [2024-10-14 13:38:22,455 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 607 transitions. Word has length 115 [2024-10-14 13:38:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:22,455 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 607 transitions. [2024-10-14 13:38:22,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 607 transitions. [2024-10-14 13:38:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 13:38:22,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:22,456 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:22,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 13:38:22,457 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:22,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1837511621, now seen corresponding path program 1 times [2024-10-14 13:38:22,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:22,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701885095] [2024-10-14 13:38:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:22,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:23,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701885095] [2024-10-14 13:38:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701885095] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:23,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:23,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:38:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934555075] [2024-10-14 13:38:23,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:23,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:38:23,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:23,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:38:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:23,459 INFO L87 Difference]: Start difference. First operand 476 states and 607 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:24,218 INFO L93 Difference]: Finished difference Result 725 states and 922 transitions. [2024-10-14 13:38:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:38:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-10-14 13:38:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:24,221 INFO L225 Difference]: With dead ends: 725 [2024-10-14 13:38:24,222 INFO L226 Difference]: Without dead ends: 509 [2024-10-14 13:38:24,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:38:24,223 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 231 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:24,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 478 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:38:24,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-14 13:38:24,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 465. [2024-10-14 13:38:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 410 states have (on average 1.2317073170731707) internal successors, (505), 410 states have internal predecessors, (505), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 589 transitions. [2024-10-14 13:38:24,316 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 589 transitions. Word has length 115 [2024-10-14 13:38:24,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:24,317 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 589 transitions. [2024-10-14 13:38:24,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 589 transitions. [2024-10-14 13:38:24,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 13:38:24,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:24,318 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:24,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:38:24,318 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:24,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:24,319 INFO L85 PathProgramCache]: Analyzing trace with hash 683170697, now seen corresponding path program 1 times [2024-10-14 13:38:24,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:24,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734069056] [2024-10-14 13:38:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:24,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:24,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:24,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734069056] [2024-10-14 13:38:24,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734069056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:24,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:24,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:38:24,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142531848] [2024-10-14 13:38:24,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:24,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:38:24,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:24,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:38:24,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:24,884 INFO L87 Difference]: Start difference. First operand 465 states and 589 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:25,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:25,459 INFO L93 Difference]: Finished difference Result 714 states and 905 transitions. [2024-10-14 13:38:25,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:25,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-10-14 13:38:25,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:25,463 INFO L225 Difference]: With dead ends: 714 [2024-10-14 13:38:25,463 INFO L226 Difference]: Without dead ends: 507 [2024-10-14 13:38:25,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:38:25,464 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 156 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:25,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 530 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:38:25,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-14 13:38:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 463. [2024-10-14 13:38:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 408 states have (on average 1.2303921568627452) internal successors, (502), 408 states have internal predecessors, (502), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 586 transitions. [2024-10-14 13:38:25,535 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 586 transitions. Word has length 115 [2024-10-14 13:38:25,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:25,535 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 586 transitions. [2024-10-14 13:38:25,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 586 transitions. [2024-10-14 13:38:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 13:38:25,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:25,536 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:25,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:38:25,537 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:25,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:25,537 INFO L85 PathProgramCache]: Analyzing trace with hash -327946553, now seen corresponding path program 1 times [2024-10-14 13:38:25,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:25,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108855639] [2024-10-14 13:38:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:25,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:25,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:25,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108855639] [2024-10-14 13:38:25,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108855639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:25,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:25,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:38:25,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651201297] [2024-10-14 13:38:25,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:25,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:38:25,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:38:25,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:38:25,957 INFO L87 Difference]: Start difference. First operand 463 states and 586 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:26,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:26,276 INFO L93 Difference]: Finished difference Result 712 states and 902 transitions. [2024-10-14 13:38:26,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:26,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2024-10-14 13:38:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:26,279 INFO L225 Difference]: With dead ends: 712 [2024-10-14 13:38:26,279 INFO L226 Difference]: Without dead ends: 507 [2024-10-14 13:38:26,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:26,280 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 116 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:26,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 347 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:38:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-14 13:38:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 463. [2024-10-14 13:38:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 408 states have (on average 1.2279411764705883) internal successors, (501), 408 states have internal predecessors, (501), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 585 transitions. [2024-10-14 13:38:26,355 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 585 transitions. Word has length 115 [2024-10-14 13:38:26,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:26,356 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 585 transitions. [2024-10-14 13:38:26,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 585 transitions. [2024-10-14 13:38:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 13:38:26,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:26,357 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:26,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:38:26,357 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:26,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash 710562215, now seen corresponding path program 1 times [2024-10-14 13:38:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:26,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301791509] [2024-10-14 13:38:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:27,534 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:27,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301791509] [2024-10-14 13:38:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301791509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:27,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:27,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 13:38:27,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034040330] [2024-10-14 13:38:27,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:27,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 13:38:27,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:27,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 13:38:27,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:38:27,537 INFO L87 Difference]: Start difference. First operand 463 states and 585 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:28,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:28,489 INFO L93 Difference]: Finished difference Result 714 states and 902 transitions. [2024-10-14 13:38:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:38:28,490 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-10-14 13:38:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:28,492 INFO L225 Difference]: With dead ends: 714 [2024-10-14 13:38:28,492 INFO L226 Difference]: Without dead ends: 515 [2024-10-14 13:38:28,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-10-14 13:38:28,493 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 252 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:28,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 673 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:38:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-10-14 13:38:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 471. [2024-10-14 13:38:28,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 416 states have (on average 1.2259615384615385) internal successors, (510), 416 states have internal predecessors, (510), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 13:38:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 594 transitions. [2024-10-14 13:38:28,564 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 594 transitions. Word has length 117 [2024-10-14 13:38:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:28,565 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 594 transitions. [2024-10-14 13:38:28,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-14 13:38:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 594 transitions. [2024-10-14 13:38:28,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 13:38:28,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:28,566 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:28,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:38:28,566 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:28,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:28,567 INFO L85 PathProgramCache]: Analyzing trace with hash 767820517, now seen corresponding path program 1 times [2024-10-14 13:38:28,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:28,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302203805] [2024-10-14 13:38:28,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:28,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:29,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:29,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-14 13:38:30,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302203805] [2024-10-14 13:38:30,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302203805] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:38:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807645417] [2024-10-14 13:38:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:30,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:38:30,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:38:30,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:38:30,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 13:38:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:30,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 13:38:30,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:38:30,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2024-10-14 13:38:30,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2024-10-14 13:38:30,431 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-14 13:38:30,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:38:30,527 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:30,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807645417] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 13:38:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 13:38:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17, 9] total 19 [2024-10-14 13:38:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815620975] [2024-10-14 13:38:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:30,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:38:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:30,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:38:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-10-14 13:38:30,530 INFO L87 Difference]: Start difference. First operand 471 states and 594 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:30,797 INFO L93 Difference]: Finished difference Result 828 states and 1052 transitions. [2024-10-14 13:38:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:38:30,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2024-10-14 13:38:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:30,801 INFO L225 Difference]: With dead ends: 828 [2024-10-14 13:38:30,801 INFO L226 Difference]: Without dead ends: 629 [2024-10-14 13:38:30,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2024-10-14 13:38:30,804 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 43 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:30,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 539 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:38:30,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-10-14 13:38:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 437. [2024-10-14 13:38:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 400 states have (on average 1.2475) internal successors, (499), 400 states have internal predecessors, (499), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 555 transitions. [2024-10-14 13:38:30,860 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 555 transitions. Word has length 117 [2024-10-14 13:38:30,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:30,861 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 555 transitions. [2024-10-14 13:38:30,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 555 transitions. [2024-10-14 13:38:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:38:30,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:30,862 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:30,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 13:38:31,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 13:38:31,064 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:31,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1037731324, now seen corresponding path program 1 times [2024-10-14 13:38:31,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:31,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157614276] [2024-10-14 13:38:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:31,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:32,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:32,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157614276] [2024-10-14 13:38:32,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157614276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:32,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:32,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 13:38:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979118823] [2024-10-14 13:38:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:32,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 13:38:32,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:32,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 13:38:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:38:32,716 INFO L87 Difference]: Start difference. First operand 437 states and 555 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:34,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:34,466 INFO L93 Difference]: Finished difference Result 1005 states and 1282 transitions. [2024-10-14 13:38:34,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-14 13:38:34,466 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-14 13:38:34,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:34,470 INFO L225 Difference]: With dead ends: 1005 [2024-10-14 13:38:34,470 INFO L226 Difference]: Without dead ends: 710 [2024-10-14 13:38:34,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=157, Invalid=965, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 13:38:34,472 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 400 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:34,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1165 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 13:38:34,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-10-14 13:38:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 489. [2024-10-14 13:38:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 452 states have (on average 1.2676991150442478) internal successors, (573), 452 states have internal predecessors, (573), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 629 transitions. [2024-10-14 13:38:34,532 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 629 transitions. Word has length 118 [2024-10-14 13:38:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:34,533 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 629 transitions. [2024-10-14 13:38:34,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 629 transitions. [2024-10-14 13:38:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:38:34,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:34,534 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:34,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:38:34,534 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:34,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 306423453, now seen corresponding path program 1 times [2024-10-14 13:38:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:34,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581010042] [2024-10-14 13:38:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:34,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:34,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:34,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:34,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:34,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:35,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:35,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581010042] [2024-10-14 13:38:35,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581010042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:35,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:35,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:38:35,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708944857] [2024-10-14 13:38:35,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:35,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:38:35,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:35,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:38:35,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:38:35,014 INFO L87 Difference]: Start difference. First operand 489 states and 629 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:35,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:35,446 INFO L93 Difference]: Finished difference Result 849 states and 1095 transitions. [2024-10-14 13:38:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:38:35,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-10-14 13:38:35,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:35,449 INFO L225 Difference]: With dead ends: 849 [2024-10-14 13:38:35,449 INFO L226 Difference]: Without dead ends: 509 [2024-10-14 13:38:35,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:38:35,450 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 216 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:35,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 755 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-10-14 13:38:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 489. [2024-10-14 13:38:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 452 states have (on average 1.2632743362831858) internal successors, (571), 452 states have internal predecessors, (571), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:35,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 627 transitions. [2024-10-14 13:38:35,506 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 627 transitions. Word has length 118 [2024-10-14 13:38:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:35,507 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 627 transitions. [2024-10-14 13:38:35,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-14 13:38:35,507 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 627 transitions. [2024-10-14 13:38:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:38:35,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:35,508 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:35,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 13:38:35,508 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:35,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash 282122488, now seen corresponding path program 1 times [2024-10-14 13:38:35,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:35,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189470596] [2024-10-14 13:38:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:36,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:36,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189470596] [2024-10-14 13:38:36,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189470596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:36,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:36,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:38:36,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299017963] [2024-10-14 13:38:36,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:36,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:38:36,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:36,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:38:36,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:38:36,174 INFO L87 Difference]: Start difference. First operand 489 states and 627 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:36,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:36,846 INFO L93 Difference]: Finished difference Result 973 states and 1255 transitions. [2024-10-14 13:38:36,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:38:36,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 118 [2024-10-14 13:38:36,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:36,849 INFO L225 Difference]: With dead ends: 973 [2024-10-14 13:38:36,849 INFO L226 Difference]: Without dead ends: 645 [2024-10-14 13:38:36,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:38:36,850 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 148 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:36,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 876 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:38:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-10-14 13:38:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 506. [2024-10-14 13:38:36,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 469 states have (on average 1.255863539445629) internal successors, (589), 469 states have internal predecessors, (589), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:36,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 645 transitions. [2024-10-14 13:38:36,896 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 645 transitions. Word has length 118 [2024-10-14 13:38:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:36,897 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 645 transitions. [2024-10-14 13:38:36,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 645 transitions. [2024-10-14 13:38:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:36,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:36,898 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:36,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 13:38:36,898 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:36,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:36,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1650755618, now seen corresponding path program 1 times [2024-10-14 13:38:36,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:36,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221028256] [2024-10-14 13:38:36,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:36,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:37,704 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:37,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:37,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221028256] [2024-10-14 13:38:37,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221028256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:37,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:37,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:38:37,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596513826] [2024-10-14 13:38:37,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:37,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:38:37,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:37,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:38:37,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:37,706 INFO L87 Difference]: Start difference. First operand 506 states and 645 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:38,156 INFO L93 Difference]: Finished difference Result 1011 states and 1300 transitions. [2024-10-14 13:38:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:38:38,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:38,160 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 13:38:38,160 INFO L226 Difference]: Without dead ends: 655 [2024-10-14 13:38:38,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:38:38,161 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 203 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:38,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 480 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-10-14 13:38:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 571. [2024-10-14 13:38:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 534 states have (on average 1.2640449438202248) internal successors, (675), 534 states have internal predecessors, (675), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 731 transitions. [2024-10-14 13:38:38,224 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 731 transitions. Word has length 120 [2024-10-14 13:38:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:38,225 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 731 transitions. [2024-10-14 13:38:38,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 731 transitions. [2024-10-14 13:38:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:38,226 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:38,226 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:38,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 13:38:38,227 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:38,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:38,227 INFO L85 PathProgramCache]: Analyzing trace with hash 629687264, now seen corresponding path program 1 times [2024-10-14 13:38:38,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:38,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036717360] [2024-10-14 13:38:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:38,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:38,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:38,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036717360] [2024-10-14 13:38:38,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036717360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:38,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:38,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:38:38,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072152393] [2024-10-14 13:38:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:38,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:38:38,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:38:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:38:38,409 INFO L87 Difference]: Start difference. First operand 571 states and 731 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:38,559 INFO L93 Difference]: Finished difference Result 1123 states and 1448 transitions. [2024-10-14 13:38:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:38:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:38,562 INFO L225 Difference]: With dead ends: 1123 [2024-10-14 13:38:38,562 INFO L226 Difference]: Without dead ends: 726 [2024-10-14 13:38:38,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:38:38,563 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 37 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:38,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 380 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:38:38,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-10-14 13:38:38,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 588. [2024-10-14 13:38:38,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 551 states have (on average 1.2740471869328494) internal successors, (702), 551 states have internal predecessors, (702), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 758 transitions. [2024-10-14 13:38:38,621 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 758 transitions. Word has length 120 [2024-10-14 13:38:38,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:38,621 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 758 transitions. [2024-10-14 13:38:38,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 758 transitions. [2024-10-14 13:38:38,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:38,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:38,622 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:38,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 13:38:38,623 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:38,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:38,623 INFO L85 PathProgramCache]: Analyzing trace with hash -381429986, now seen corresponding path program 1 times [2024-10-14 13:38:38,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:38,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820852280] [2024-10-14 13:38:38,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:38,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:39,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:39,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820852280] [2024-10-14 13:38:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820852280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:39,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:38:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355839706] [2024-10-14 13:38:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:39,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:38:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:38:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:38:39,859 INFO L87 Difference]: Start difference. First operand 588 states and 758 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:38:40,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:40,453 INFO L93 Difference]: Finished difference Result 1071 states and 1386 transitions. [2024-10-14 13:38:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:38:40,453 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2024-10-14 13:38:40,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:40,455 INFO L225 Difference]: With dead ends: 1071 [2024-10-14 13:38:40,455 INFO L226 Difference]: Without dead ends: 659 [2024-10-14 13:38:40,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:38:40,456 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 356 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:40,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 522 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:38:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-10-14 13:38:40,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 588. [2024-10-14 13:38:40,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 551 states have (on average 1.2740471869328494) internal successors, (702), 551 states have internal predecessors, (702), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 758 transitions. [2024-10-14 13:38:40,508 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 758 transitions. Word has length 120 [2024-10-14 13:38:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:40,509 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 758 transitions. [2024-10-14 13:38:40,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-14 13:38:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 758 transitions. [2024-10-14 13:38:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:40,510 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:40,510 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:40,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 13:38:40,510 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:40,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash -750326814, now seen corresponding path program 1 times [2024-10-14 13:38:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:40,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241976762] [2024-10-14 13:38:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:40,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:41,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:41,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241976762] [2024-10-14 13:38:41,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241976762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:41,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:41,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:38:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001728615] [2024-10-14 13:38:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:41,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:38:41,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:41,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:38:41,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:38:41,303 INFO L87 Difference]: Start difference. First operand 588 states and 758 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:41,712 INFO L93 Difference]: Finished difference Result 1143 states and 1486 transitions. [2024-10-14 13:38:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:38:41,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:41,715 INFO L225 Difference]: With dead ends: 1143 [2024-10-14 13:38:41,715 INFO L226 Difference]: Without dead ends: 733 [2024-10-14 13:38:41,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:38:41,716 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 195 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:41,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 375 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:38:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-14 13:38:41,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 655. [2024-10-14 13:38:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 618 states have (on average 1.27831715210356) internal successors, (790), 618 states have internal predecessors, (790), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 846 transitions. [2024-10-14 13:38:41,781 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 846 transitions. Word has length 120 [2024-10-14 13:38:41,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:41,781 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 846 transitions. [2024-10-14 13:38:41,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:41,781 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 846 transitions. [2024-10-14 13:38:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:41,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:41,782 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:41,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 13:38:41,783 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:41,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:41,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1761444064, now seen corresponding path program 1 times [2024-10-14 13:38:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620673627] [2024-10-14 13:38:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:41,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:42,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620673627] [2024-10-14 13:38:42,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620673627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:42,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:42,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:38:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725712899] [2024-10-14 13:38:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:42,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:38:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:38:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:38:42,920 INFO L87 Difference]: Start difference. First operand 655 states and 846 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:43,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:43,588 INFO L93 Difference]: Finished difference Result 1251 states and 1626 transitions. [2024-10-14 13:38:43,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:38:43,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:43,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:43,591 INFO L225 Difference]: With dead ends: 1251 [2024-10-14 13:38:43,591 INFO L226 Difference]: Without dead ends: 798 [2024-10-14 13:38:43,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:38:43,592 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 184 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:43,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 546 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:38:43,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-10-14 13:38:43,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 720. [2024-10-14 13:38:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 683 states have (on average 1.279648609077599) internal successors, (874), 683 states have internal predecessors, (874), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 930 transitions. [2024-10-14 13:38:43,647 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 930 transitions. Word has length 120 [2024-10-14 13:38:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:43,648 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 930 transitions. [2024-10-14 13:38:43,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 930 transitions. [2024-10-14 13:38:43,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:43,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:43,649 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:43,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 13:38:43,649 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:43,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1738811810, now seen corresponding path program 1 times [2024-10-14 13:38:43,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903803789] [2024-10-14 13:38:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:43,837 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:43,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:43,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903803789] [2024-10-14 13:38:43,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903803789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:43,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:43,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:38:43,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997790273] [2024-10-14 13:38:43,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:43,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:38:43,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:43,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:38:43,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:38:43,840 INFO L87 Difference]: Start difference. First operand 720 states and 930 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:44,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:44,007 INFO L93 Difference]: Finished difference Result 1180 states and 1540 transitions. [2024-10-14 13:38:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:38:44,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:44,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:44,009 INFO L225 Difference]: With dead ends: 1180 [2024-10-14 13:38:44,009 INFO L226 Difference]: Without dead ends: 658 [2024-10-14 13:38:44,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:38:44,011 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 4 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:44,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 311 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:38:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-10-14 13:38:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2024-10-14 13:38:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 621 states have (on average 1.2737520128824478) internal successors, (791), 621 states have internal predecessors, (791), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 847 transitions. [2024-10-14 13:38:44,068 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 847 transitions. Word has length 120 [2024-10-14 13:38:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:44,068 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 847 transitions. [2024-10-14 13:38:44,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 847 transitions. [2024-10-14 13:38:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:44,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:44,070 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:44,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 13:38:44,070 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:44,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1925515232, now seen corresponding path program 1 times [2024-10-14 13:38:44,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:44,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095997165] [2024-10-14 13:38:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:44,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:38:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:38:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:38:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:38:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:38:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:38:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:38:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:38:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:38:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:38:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:38:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:38:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:38:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:38:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:38:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-14 13:38:44,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:38:44,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095997165] [2024-10-14 13:38:44,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095997165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:38:44,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:38:44,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:38:44,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371671039] [2024-10-14 13:38:44,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:38:44,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:38:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:38:44,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:38:44,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:38:44,586 INFO L87 Difference]: Start difference. First operand 658 states and 847 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:38:45,101 INFO L93 Difference]: Finished difference Result 1197 states and 1541 transitions. [2024-10-14 13:38:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:38:45,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-10-14 13:38:45,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:38:45,105 INFO L225 Difference]: With dead ends: 1197 [2024-10-14 13:38:45,105 INFO L226 Difference]: Without dead ends: 733 [2024-10-14 13:38:45,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:38:45,108 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 152 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:38:45,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 327 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:38:45,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-10-14 13:38:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 652. [2024-10-14 13:38:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 615 states have (on average 1.256910569105691) internal successors, (773), 615 states have internal predecessors, (773), 28 states have call successors, (28), 8 states have call predecessors, (28), 8 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 13:38:45,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 829 transitions. [2024-10-14 13:38:45,179 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 829 transitions. Word has length 120 [2024-10-14 13:38:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:38:45,183 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 829 transitions. [2024-10-14 13:38:45,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-14 13:38:45,184 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 829 transitions. [2024-10-14 13:38:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:38:45,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:38:45,185 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:38:45,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 13:38:45,185 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:38:45,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:38:45,186 INFO L85 PathProgramCache]: Analyzing trace with hash -106670372, now seen corresponding path program 1 times [2024-10-14 13:38:45,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:38:45,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243973980] [2024-10-14 13:38:45,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:38:45,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:38:45,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat