./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cf2833edd1cdae0e001cafaa7cd8c6b44382f8b73a263b509a9183609c6c876 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:42:38,368 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:42:38,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:42:38,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:42:38,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:42:38,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:42:38,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:42:38,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:42:38,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:42:38,495 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:42:38,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:42:38,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:42:38,496 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:42:38,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:42:38,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:42:38,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:42:38,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:42:38,499 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:42:38,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:42:38,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:42:38,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:42:38,506 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:42:38,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:42:38,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:42:38,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:42:38,507 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:42:38,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:42:38,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:42:38,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:42:38,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:42:38,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:42:38,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:42:38,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:42:38,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:42:38,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:42:38,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:42:38,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:42:38,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:42:38,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:42:38,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:42:38,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:42:38,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:42:38,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cf2833edd1cdae0e001cafaa7cd8c6b44382f8b73a263b509a9183609c6c876 [2024-11-19 00:42:38,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:42:38,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:42:38,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:42:38,804 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:42:38,805 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:42:38,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-19 00:42:40,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:42:40,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:42:40,569 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-19 00:42:40,578 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677b22124/61620c59c7a34ec5afd49e71bc58bc42/FLAGce5c42465 [2024-11-19 00:42:40,591 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/677b22124/61620c59c7a34ec5afd49e71bc58bc42 [2024-11-19 00:42:40,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:42:40,595 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:42:40,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:42:40,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:42:40,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:42:40,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:40,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acb90d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40, skipping insertion in model container [2024-11-19 00:42:40,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:40,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:42:40,814 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i[917,930] [2024-11-19 00:42:40,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:42:40,926 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:42:40,938 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-15.i[917,930] [2024-11-19 00:42:40,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:42:40,989 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:42:40,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40 WrapperNode [2024-11-19 00:42:40,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:42:40,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:42:40,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:42:40,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:42:40,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,061 INFO L138 Inliner]: procedures = 29, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 513 [2024-11-19 00:42:41,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:42:41,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:42:41,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:42:41,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:42:41,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,129 INFO L175 MemorySlicer]: Split 127 memory accesses to 6 slices as follows [2, 16, 51, 25, 10, 23]. 40 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 5, 2, 1, 2]. The 16 writes are split as follows [0, 2, 6, 4, 1, 3]. [2024-11-19 00:42:41,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:42:41,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:42:41,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:42:41,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:42:41,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (1/1) ... [2024-11-19 00:42:41,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:42:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:42:41,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:42:41,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:42:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:42:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 00:42:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 00:42:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 00:42:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 00:42:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-19 00:42:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:42:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 00:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 00:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 00:42:41,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 00:42:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 00:42:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:42:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:42:41,454 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:42:41,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:42:41,967 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-19 00:42:41,968 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:42:41,987 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:42:41,987 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:42:41,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:42:41 BoogieIcfgContainer [2024-11-19 00:42:41,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:42:41,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:42:41,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:42:41,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:42:41,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:42:40" (1/3) ... [2024-11-19 00:42:41,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4002be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:42:41, skipping insertion in model container [2024-11-19 00:42:41,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:42:40" (2/3) ... [2024-11-19 00:42:41,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4002be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:42:41, skipping insertion in model container [2024-11-19 00:42:41,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:42:41" (3/3) ... [2024-11-19 00:42:41,996 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-15.i [2024-11-19 00:42:42,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:42:42,011 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:42:42,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:42:42,074 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;@aba26b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:42:42,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:42:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 98 states have (on average 1.4489795918367347) internal successors, (142), 99 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 00:42:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:42:42,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:42,092 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:42,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:42,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash 31279224, now seen corresponding path program 1 times [2024-11-19 00:42:42,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:42,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083463366] [2024-11-19 00:42:42,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:42,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-19 00:42:42,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:42,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083463366] [2024-11-19 00:42:42,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083463366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:42:42,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281918758] [2024-11-19 00:42:42,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:42,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:42:42,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:42:42,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:42:42,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:42:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:42,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:42:42,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:42:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-19 00:42:42,878 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:42:42,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281918758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:42,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:42:42,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:42:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545487532] [2024-11-19 00:42:42,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:42,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:42:42,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:42,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:42:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:42:42,924 INFO L87 Difference]: Start difference. First operand has 113 states, 98 states have (on average 1.4489795918367347) internal successors, (142), 99 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 00:42:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:42,960 INFO L93 Difference]: Finished difference Result 219 states and 338 transitions. [2024-11-19 00:42:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:42:42,963 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-19 00:42:42,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:42,973 INFO L225 Difference]: With dead ends: 219 [2024-11-19 00:42:42,973 INFO L226 Difference]: Without dead ends: 109 [2024-11-19 00:42:42,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:42:42,985 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:42,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:43,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-19 00:42:43,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-19 00:42:43,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 00:42:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-11-19 00:42:43,028 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 115 [2024-11-19 00:42:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:43,029 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-11-19 00:42:43,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 00:42:43,029 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-11-19 00:42:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:42:43,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:43,033 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:43,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:42:43,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:42:43,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:43,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:43,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1829017178, now seen corresponding path program 1 times [2024-11-19 00:42:43,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:43,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455185618] [2024-11-19 00:42:43,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:43,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:43,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:43,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455185618] [2024-11-19 00:42:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455185618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:43,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:42:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091728125] [2024-11-19 00:42:43,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:43,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:42:43,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:43,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:42:43,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:42:43,571 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 00:42:43,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:43,615 INFO L93 Difference]: Finished difference Result 217 states and 314 transitions. [2024-11-19 00:42:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:42:43,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-19 00:42:43,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:43,618 INFO L225 Difference]: With dead ends: 217 [2024-11-19 00:42:43,618 INFO L226 Difference]: Without dead ends: 111 [2024-11-19 00:42:43,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:42:43,620 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:43,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-19 00:42:43,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-19 00:42:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 00:42:43,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-11-19 00:42:43,634 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 115 [2024-11-19 00:42:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:43,637 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-11-19 00:42:43,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 00:42:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-11-19 00:42:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:42:43,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:43,639 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:43,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:42:43,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:43,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:43,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1512009960, now seen corresponding path program 1 times [2024-11-19 00:42:43,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975619563] [2024-11-19 00:42:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:43,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:43,802 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:43,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:43,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975619563] [2024-11-19 00:42:43,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975619563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:43,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:43,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:42:43,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729568367] [2024-11-19 00:42:43,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:43,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:42:43,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:43,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:42:43,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:42:43,805 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:43,838 INFO L93 Difference]: Finished difference Result 220 states and 317 transitions. [2024-11-19 00:42:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:42:43,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-19 00:42:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:43,841 INFO L225 Difference]: With dead ends: 220 [2024-11-19 00:42:43,841 INFO L226 Difference]: Without dead ends: 112 [2024-11-19 00:42:43,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:42:43,843 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:43,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-19 00:42:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-19 00:42:43,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.3877551020408163) internal successors, (136), 98 states have internal predecessors, (136), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 00:42:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2024-11-19 00:42:43,858 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 115 [2024-11-19 00:42:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:43,860 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2024-11-19 00:42:43,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2024-11-19 00:42:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:42:43,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:43,862 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:43,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:42:43,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:43,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash -176933782, now seen corresponding path program 1 times [2024-11-19 00:42:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140045866] [2024-11-19 00:42:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:44,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140045866] [2024-11-19 00:42:44,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140045866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:44,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:44,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:42:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678467235] [2024-11-19 00:42:44,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:44,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:42:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:44,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:42:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:42:44,037 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:44,059 INFO L93 Difference]: Finished difference Result 222 states and 319 transitions. [2024-11-19 00:42:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:42:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-19 00:42:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:44,066 INFO L225 Difference]: With dead ends: 222 [2024-11-19 00:42:44,066 INFO L226 Difference]: Without dead ends: 113 [2024-11-19 00:42:44,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:42:44,068 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:44,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:44,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-19 00:42:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-11-19 00:42:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.3838383838383839) internal successors, (137), 99 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-19 00:42:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-11-19 00:42:44,085 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 115 [2024-11-19 00:42:44,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:44,086 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-11-19 00:42:44,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-11-19 00:42:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 00:42:44,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:44,091 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:44,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:42:44,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:44,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:44,092 INFO L85 PathProgramCache]: Analyzing trace with hash 81231656, now seen corresponding path program 1 times [2024-11-19 00:42:44,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:44,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441537148] [2024-11-19 00:42:44,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:44,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:44,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:44,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441537148] [2024-11-19 00:42:44,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441537148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:44,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:44,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858130524] [2024-11-19 00:42:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:44,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:44,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:44,585 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:44,681 INFO L93 Difference]: Finished difference Result 333 states and 477 transitions. [2024-11-19 00:42:44,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-19 00:42:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:44,685 INFO L225 Difference]: With dead ends: 333 [2024-11-19 00:42:44,685 INFO L226 Difference]: Without dead ends: 223 [2024-11-19 00:42:44,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:44,690 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 247 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:44,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 440 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:44,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-19 00:42:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 218. [2024-11-19 00:42:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 191 states have (on average 1.387434554973822) internal successors, (265), 191 states have internal predecessors, (265), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 00:42:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 313 transitions. [2024-11-19 00:42:44,723 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 313 transitions. Word has length 115 [2024-11-19 00:42:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:44,725 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 313 transitions. [2024-11-19 00:42:44,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 313 transitions. [2024-11-19 00:42:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 00:42:44,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:44,729 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:44,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:42:44,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:44,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1305195944, now seen corresponding path program 1 times [2024-11-19 00:42:44,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:44,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050251022] [2024-11-19 00:42:44,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:45,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:45,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050251022] [2024-11-19 00:42:45,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050251022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:45,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:45,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:42:45,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463524353] [2024-11-19 00:42:45,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:45,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:42:45,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:42:45,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:45,184 INFO L87 Difference]: Start difference. First operand 218 states and 313 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:45,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:45,345 INFO L93 Difference]: Finished difference Result 437 states and 627 transitions. [2024-11-19 00:42:45,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:42:45,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 116 [2024-11-19 00:42:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:45,347 INFO L225 Difference]: With dead ends: 437 [2024-11-19 00:42:45,348 INFO L226 Difference]: Without dead ends: 222 [2024-11-19 00:42:45,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:45,352 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 152 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:45,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 817 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:45,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-19 00:42:45,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 217. [2024-11-19 00:42:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 190 states have (on average 1.3842105263157896) internal successors, (263), 190 states have internal predecessors, (263), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-19 00:42:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 311 transitions. [2024-11-19 00:42:45,375 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 311 transitions. Word has length 116 [2024-11-19 00:42:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:45,376 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 311 transitions. [2024-11-19 00:42:45,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 311 transitions. [2024-11-19 00:42:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 00:42:45,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:45,378 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:45,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:42:45,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:45,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash 635553891, now seen corresponding path program 1 times [2024-11-19 00:42:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:45,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780317772] [2024-11-19 00:42:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:45,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:45,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780317772] [2024-11-19 00:42:45,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780317772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:45,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:45,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:42:45,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106226217] [2024-11-19 00:42:45,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:45,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:42:45,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:45,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:42:45,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:45,886 INFO L87 Difference]: Start difference. First operand 217 states and 311 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:46,086 INFO L93 Difference]: Finished difference Result 498 states and 713 transitions. [2024-11-19 00:42:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:42:46,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-19 00:42:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:46,089 INFO L225 Difference]: With dead ends: 498 [2024-11-19 00:42:46,089 INFO L226 Difference]: Without dead ends: 388 [2024-11-19 00:42:46,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:42:46,091 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 215 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:46,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 820 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:46,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-19 00:42:46,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 384. [2024-11-19 00:42:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 339 states have (on average 1.3893805309734513) internal successors, (471), 341 states have internal predecessors, (471), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:42:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 551 transitions. [2024-11-19 00:42:46,112 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 551 transitions. Word has length 117 [2024-11-19 00:42:46,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:46,112 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 551 transitions. [2024-11-19 00:42:46,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:46,113 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 551 transitions. [2024-11-19 00:42:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 00:42:46,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:46,114 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:46,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:42:46,115 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:46,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1552103804, now seen corresponding path program 1 times [2024-11-19 00:42:46,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:46,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958224682] [2024-11-19 00:42:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:46,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:46,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:46,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958224682] [2024-11-19 00:42:46,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958224682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:46,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:46,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:42:46,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470653205] [2024-11-19 00:42:46,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:46,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:42:46,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:46,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:42:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:46,420 INFO L87 Difference]: Start difference. First operand 384 states and 551 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:46,549 INFO L93 Difference]: Finished difference Result 940 states and 1348 transitions. [2024-11-19 00:42:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:42:46,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-19 00:42:46,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:46,558 INFO L225 Difference]: With dead ends: 940 [2024-11-19 00:42:46,558 INFO L226 Difference]: Without dead ends: 559 [2024-11-19 00:42:46,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:42:46,562 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 114 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:46,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 990 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:46,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-11-19 00:42:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 409. [2024-11-19 00:42:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 364 states have (on average 1.3928571428571428) internal successors, (507), 366 states have internal predecessors, (507), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:42:46,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 587 transitions. [2024-11-19 00:42:46,589 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 587 transitions. Word has length 118 [2024-11-19 00:42:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:46,589 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 587 transitions. [2024-11-19 00:42:46,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 587 transitions. [2024-11-19 00:42:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 00:42:46,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:46,591 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:46,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:42:46,591 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:46,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1309316045, now seen corresponding path program 1 times [2024-11-19 00:42:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:46,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297921874] [2024-11-19 00:42:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:46,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:46,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:46,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297921874] [2024-11-19 00:42:46,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297921874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:46,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:46,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:46,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679443907] [2024-11-19 00:42:46,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:46,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:46,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:46,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:46,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:46,929 INFO L87 Difference]: Start difference. First operand 409 states and 587 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:47,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:47,019 INFO L93 Difference]: Finished difference Result 1027 states and 1470 transitions. [2024-11-19 00:42:47,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:42:47,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-19 00:42:47,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:47,023 INFO L225 Difference]: With dead ends: 1027 [2024-11-19 00:42:47,023 INFO L226 Difference]: Without dead ends: 621 [2024-11-19 00:42:47,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:47,025 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 63 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:47,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 673 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-19 00:42:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 474. [2024-11-19 00:42:47,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 429 states have (on average 1.3986013986013985) internal successors, (600), 431 states have internal predecessors, (600), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:42:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 680 transitions. [2024-11-19 00:42:47,048 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 680 transitions. Word has length 118 [2024-11-19 00:42:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:47,049 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 680 transitions. [2024-11-19 00:42:47,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 680 transitions. [2024-11-19 00:42:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 00:42:47,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:47,051 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:47,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:42:47,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:47,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1732196226, now seen corresponding path program 1 times [2024-11-19 00:42:47,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:47,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435493779] [2024-11-19 00:42:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:47,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:47,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:47,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435493779] [2024-11-19 00:42:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435493779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:47,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753019900] [2024-11-19 00:42:47,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:47,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:47,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:47,335 INFO L87 Difference]: Start difference. First operand 474 states and 680 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:47,426 INFO L93 Difference]: Finished difference Result 1088 states and 1553 transitions. [2024-11-19 00:42:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-19 00:42:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:47,431 INFO L225 Difference]: With dead ends: 1088 [2024-11-19 00:42:47,432 INFO L226 Difference]: Without dead ends: 617 [2024-11-19 00:42:47,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:47,434 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 70 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:47,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 657 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:47,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-19 00:42:47,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 473. [2024-11-19 00:42:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 428 states have (on average 1.394859813084112) internal successors, (597), 430 states have internal predecessors, (597), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-19 00:42:47,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 677 transitions. [2024-11-19 00:42:47,476 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 677 transitions. Word has length 118 [2024-11-19 00:42:47,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:47,477 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 677 transitions. [2024-11-19 00:42:47,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:47,478 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 677 transitions. [2024-11-19 00:42:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-19 00:42:47,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:47,481 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:47,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:42:47,481 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:47,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash 914547776, now seen corresponding path program 1 times [2024-11-19 00:42:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206560918] [2024-11-19 00:42:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:47,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:47,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:47,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206560918] [2024-11-19 00:42:47,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206560918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:47,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:47,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:42:47,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595507002] [2024-11-19 00:42:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:47,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:42:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:42:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:42:47,852 INFO L87 Difference]: Start difference. First operand 473 states and 677 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:48,043 INFO L93 Difference]: Finished difference Result 954 states and 1365 transitions. [2024-11-19 00:42:48,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:42:48,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 118 [2024-11-19 00:42:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:48,048 INFO L225 Difference]: With dead ends: 954 [2024-11-19 00:42:48,049 INFO L226 Difference]: Without dead ends: 714 [2024-11-19 00:42:48,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:48,050 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 182 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:48,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 758 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-19 00:42:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 684. [2024-11-19 00:42:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 617 states have (on average 1.3889789303079416) internal successors, (857), 620 states have internal predecessors, (857), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:42:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 977 transitions. [2024-11-19 00:42:48,088 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 977 transitions. Word has length 118 [2024-11-19 00:42:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:48,089 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 977 transitions. [2024-11-19 00:42:48,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,089 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 977 transitions. [2024-11-19 00:42:48,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:48,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:48,091 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:48,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:42:48,091 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:48,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash -364021403, now seen corresponding path program 1 times [2024-11-19 00:42:48,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:48,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266981293] [2024-11-19 00:42:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:48,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:48,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266981293] [2024-11-19 00:42:48,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266981293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:48,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:48,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:48,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193494657] [2024-11-19 00:42:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:48,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:48,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:48,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:48,297 INFO L87 Difference]: Start difference. First operand 684 states and 977 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:48,382 INFO L93 Difference]: Finished difference Result 1442 states and 2053 transitions. [2024-11-19 00:42:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:48,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:48,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:48,386 INFO L225 Difference]: With dead ends: 1442 [2024-11-19 00:42:48,386 INFO L226 Difference]: Without dead ends: 761 [2024-11-19 00:42:48,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:48,388 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 73 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:48,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 667 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-19 00:42:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 643. [2024-11-19 00:42:48,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 576 states have (on average 1.3871527777777777) internal successors, (799), 579 states have internal predecessors, (799), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:42:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 919 transitions. [2024-11-19 00:42:48,427 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 919 transitions. Word has length 119 [2024-11-19 00:42:48,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:48,427 INFO L471 AbstractCegarLoop]: Abstraction has 643 states and 919 transitions. [2024-11-19 00:42:48,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 919 transitions. [2024-11-19 00:42:48,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:48,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:48,429 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:48,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:42:48,429 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:48,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash -2023782025, now seen corresponding path program 1 times [2024-11-19 00:42:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:48,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024787136] [2024-11-19 00:42:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:48,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:48,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024787136] [2024-11-19 00:42:48,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024787136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:48,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:48,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:48,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699577238] [2024-11-19 00:42:48,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:48,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:48,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:48,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:48,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:48,692 INFO L87 Difference]: Start difference. First operand 643 states and 919 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:48,797 INFO L93 Difference]: Finished difference Result 1098 states and 1564 transitions. [2024-11-19 00:42:48,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:48,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:48,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:48,801 INFO L225 Difference]: With dead ends: 1098 [2024-11-19 00:42:48,802 INFO L226 Difference]: Without dead ends: 655 [2024-11-19 00:42:48,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:48,803 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 68 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:48,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 741 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-19 00:42:48,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 616. [2024-11-19 00:42:48,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 549 states have (on average 1.3825136612021858) internal successors, (759), 552 states have internal predecessors, (759), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-19 00:42:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 879 transitions. [2024-11-19 00:42:48,848 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 879 transitions. Word has length 119 [2024-11-19 00:42:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:48,849 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 879 transitions. [2024-11-19 00:42:48,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 879 transitions. [2024-11-19 00:42:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:48,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:48,851 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:48,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:42:48,852 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:48,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1945076014, now seen corresponding path program 1 times [2024-11-19 00:42:48,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:48,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271374673] [2024-11-19 00:42:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:49,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:49,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271374673] [2024-11-19 00:42:49,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271374673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:49,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:49,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:42:49,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761223794] [2024-11-19 00:42:49,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:49,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:42:49,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:49,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:42:49,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:49,436 INFO L87 Difference]: Start difference. First operand 616 states and 879 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:49,948 INFO L93 Difference]: Finished difference Result 1344 states and 1910 transitions. [2024-11-19 00:42:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:42:49,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:49,952 INFO L225 Difference]: With dead ends: 1344 [2024-11-19 00:42:49,953 INFO L226 Difference]: Without dead ends: 731 [2024-11-19 00:42:49,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:42:49,955 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 407 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:49,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 1427 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:42:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-19 00:42:49,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 716. [2024-11-19 00:42:49,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 637 states have (on average 1.3767660910518054) internal successors, (877), 641 states have internal predecessors, (877), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 00:42:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2024-11-19 00:42:49,996 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 119 [2024-11-19 00:42:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:49,996 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2024-11-19 00:42:49,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2024-11-19 00:42:49,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:49,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:49,998 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:49,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 00:42:49,999 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:49,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1799398302, now seen corresponding path program 1 times [2024-11-19 00:42:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:49,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191110981] [2024-11-19 00:42:49,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:50,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:50,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:50,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191110981] [2024-11-19 00:42:50,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191110981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:50,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:50,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:50,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717835667] [2024-11-19 00:42:50,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:50,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:50,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:50,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:50,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:50,291 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:50,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:50,387 INFO L93 Difference]: Finished difference Result 1467 states and 2081 transitions. [2024-11-19 00:42:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:50,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:50,395 INFO L225 Difference]: With dead ends: 1467 [2024-11-19 00:42:50,395 INFO L226 Difference]: Without dead ends: 754 [2024-11-19 00:42:50,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:50,399 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 62 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:50,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 581 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-19 00:42:50,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 716. [2024-11-19 00:42:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 637 states have (on average 1.3642072213500784) internal successors, (869), 641 states have internal predecessors, (869), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-19 00:42:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1009 transitions. [2024-11-19 00:42:50,441 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1009 transitions. Word has length 119 [2024-11-19 00:42:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:50,441 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1009 transitions. [2024-11-19 00:42:50,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1009 transitions. [2024-11-19 00:42:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:50,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:50,443 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:50,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:42:50,444 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:50,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1484451744, now seen corresponding path program 1 times [2024-11-19 00:42:50,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:50,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675010307] [2024-11-19 00:42:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:50,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:50,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675010307] [2024-11-19 00:42:50,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675010307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:50,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:50,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:50,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200275413] [2024-11-19 00:42:50,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:50,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:50,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:50,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:50,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:50,704 INFO L87 Difference]: Start difference. First operand 716 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:50,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:50,838 INFO L93 Difference]: Finished difference Result 1262 states and 1776 transitions. [2024-11-19 00:42:50,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:50,845 INFO L225 Difference]: With dead ends: 1262 [2024-11-19 00:42:50,845 INFO L226 Difference]: Without dead ends: 817 [2024-11-19 00:42:50,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:50,847 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 249 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:50,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 697 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:42:50,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-11-19 00:42:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 807. [2024-11-19 00:42:50,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 714 states have (on average 1.3571428571428572) internal successors, (969), 718 states have internal predecessors, (969), 82 states have call successors, (82), 10 states have call predecessors, (82), 10 states have return successors, (82), 78 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-19 00:42:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1133 transitions. [2024-11-19 00:42:50,904 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1133 transitions. Word has length 119 [2024-11-19 00:42:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:50,905 INFO L471 AbstractCegarLoop]: Abstraction has 807 states and 1133 transitions. [2024-11-19 00:42:50,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:50,905 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1133 transitions. [2024-11-19 00:42:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-19 00:42:50,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:50,907 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:50,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 00:42:50,907 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:50,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash 829300942, now seen corresponding path program 1 times [2024-11-19 00:42:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:50,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405256880] [2024-11-19 00:42:50,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:50,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:51,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:51,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405256880] [2024-11-19 00:42:51,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405256880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:51,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:51,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:42:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703421680] [2024-11-19 00:42:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:51,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:42:51,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:51,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:42:51,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:42:51,763 INFO L87 Difference]: Start difference. First operand 807 states and 1133 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:52,838 INFO L93 Difference]: Finished difference Result 1752 states and 2457 transitions. [2024-11-19 00:42:52,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:42:52,838 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-19 00:42:52,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:52,844 INFO L225 Difference]: With dead ends: 1752 [2024-11-19 00:42:52,844 INFO L226 Difference]: Without dead ends: 948 [2024-11-19 00:42:52,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:42:52,846 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 433 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:52,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 2189 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:42:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-19 00:42:52,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 841. [2024-11-19 00:42:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 737 states have (on average 1.3541383989145184) internal successors, (998), 742 states have internal predecessors, (998), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 00:42:52,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1182 transitions. [2024-11-19 00:42:52,910 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1182 transitions. Word has length 119 [2024-11-19 00:42:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:52,911 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1182 transitions. [2024-11-19 00:42:52,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1182 transitions. [2024-11-19 00:42:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 00:42:52,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:52,913 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:52,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:42:52,913 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:52,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:52,914 INFO L85 PathProgramCache]: Analyzing trace with hash 751755826, now seen corresponding path program 1 times [2024-11-19 00:42:52,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:52,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370135001] [2024-11-19 00:42:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:52,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:53,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:53,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370135001] [2024-11-19 00:42:53,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370135001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:53,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:53,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:42:53,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125107216] [2024-11-19 00:42:53,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:53,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:42:53,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:53,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:42:53,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:42:53,454 INFO L87 Difference]: Start difference. First operand 841 states and 1182 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:53,890 INFO L93 Difference]: Finished difference Result 1739 states and 2434 transitions. [2024-11-19 00:42:53,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:42:53,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-19 00:42:53,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:53,896 INFO L225 Difference]: With dead ends: 1739 [2024-11-19 00:42:53,896 INFO L226 Difference]: Without dead ends: 944 [2024-11-19 00:42:53,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:42:53,898 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 378 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:53,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 1075 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:42:53,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2024-11-19 00:42:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 851. [2024-11-19 00:42:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 747 states have (on average 1.3534136546184738) internal successors, (1011), 752 states have internal predecessors, (1011), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 00:42:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1195 transitions. [2024-11-19 00:42:53,959 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1195 transitions. Word has length 120 [2024-11-19 00:42:53,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:53,960 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1195 transitions. [2024-11-19 00:42:53,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:53,960 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1195 transitions. [2024-11-19 00:42:53,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-19 00:42:53,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:53,962 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:53,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:42:53,963 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:53,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:53,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2137959220, now seen corresponding path program 1 times [2024-11-19 00:42:53,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:53,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567997891] [2024-11-19 00:42:53,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:53,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:54,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:54,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567997891] [2024-11-19 00:42:54,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567997891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:54,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:54,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:42:54,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423997325] [2024-11-19 00:42:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:54,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:42:54,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:54,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:42:54,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:42:54,773 INFO L87 Difference]: Start difference. First operand 851 states and 1195 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:55,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:55,581 INFO L93 Difference]: Finished difference Result 1665 states and 2329 transitions. [2024-11-19 00:42:55,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:42:55,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 120 [2024-11-19 00:42:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:55,586 INFO L225 Difference]: With dead ends: 1665 [2024-11-19 00:42:55,586 INFO L226 Difference]: Without dead ends: 860 [2024-11-19 00:42:55,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:42:55,589 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 490 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:55,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 1880 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:42:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-19 00:42:55,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 836. [2024-11-19 00:42:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 732 states have (on average 1.3524590163934427) internal successors, (990), 737 states have internal predecessors, (990), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 00:42:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1174 transitions. [2024-11-19 00:42:55,637 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1174 transitions. Word has length 120 [2024-11-19 00:42:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:55,638 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1174 transitions. [2024-11-19 00:42:55,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:55,638 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1174 transitions. [2024-11-19 00:42:55,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 00:42:55,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:55,640 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:55,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:42:55,640 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:55,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:55,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2118823200, now seen corresponding path program 1 times [2024-11-19 00:42:55,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:55,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859517155] [2024-11-19 00:42:55,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:55,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:56,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:56,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859517155] [2024-11-19 00:42:56,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859517155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:56,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:56,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:42:56,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89165027] [2024-11-19 00:42:56,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:56,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:42:56,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:56,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:42:56,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:42:56,059 INFO L87 Difference]: Start difference. First operand 836 states and 1174 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:56,335 INFO L93 Difference]: Finished difference Result 1508 states and 2115 transitions. [2024-11-19 00:42:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:42:56,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-19 00:42:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:56,341 INFO L225 Difference]: With dead ends: 1508 [2024-11-19 00:42:56,341 INFO L226 Difference]: Without dead ends: 1001 [2024-11-19 00:42:56,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:56,344 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 129 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:56,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1358 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:42:56,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-19 00:42:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 996. [2024-11-19 00:42:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 868 states have (on average 1.347926267281106) internal successors, (1170), 875 states have internal predecessors, (1170), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-19 00:42:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1394 transitions. [2024-11-19 00:42:56,411 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1394 transitions. Word has length 121 [2024-11-19 00:42:56,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:56,412 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1394 transitions. [2024-11-19 00:42:56,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:56,412 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1394 transitions. [2024-11-19 00:42:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 00:42:56,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:56,415 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:56,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:42:56,415 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:56,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -408783257, now seen corresponding path program 1 times [2024-11-19 00:42:56,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:56,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289804206] [2024-11-19 00:42:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:56,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:56,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:56,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289804206] [2024-11-19 00:42:56,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289804206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:56,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:56,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:56,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178150789] [2024-11-19 00:42:56,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:56,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:56,636 INFO L87 Difference]: Start difference. First operand 996 states and 1394 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:56,749 INFO L93 Difference]: Finished difference Result 1934 states and 2707 transitions. [2024-11-19 00:42:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:56,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-19 00:42:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:56,755 INFO L225 Difference]: With dead ends: 1934 [2024-11-19 00:42:56,755 INFO L226 Difference]: Without dead ends: 984 [2024-11-19 00:42:56,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:56,758 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 55 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:56,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 583 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-19 00:42:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 982. [2024-11-19 00:42:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 854 states have (on average 1.345433255269321) internal successors, (1149), 861 states have internal predecessors, (1149), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-19 00:42:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1373 transitions. [2024-11-19 00:42:56,821 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1373 transitions. Word has length 121 [2024-11-19 00:42:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:56,822 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1373 transitions. [2024-11-19 00:42:56,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1373 transitions. [2024-11-19 00:42:56,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 00:42:56,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:56,823 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:56,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 00:42:56,824 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:56,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:56,824 INFO L85 PathProgramCache]: Analyzing trace with hash -8353378, now seen corresponding path program 1 times [2024-11-19 00:42:56,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:56,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970010523] [2024-11-19 00:42:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:56,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:57,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:57,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970010523] [2024-11-19 00:42:57,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970010523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:57,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:57,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:57,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751153521] [2024-11-19 00:42:57,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:57,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:57,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:57,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:57,079 INFO L87 Difference]: Start difference. First operand 982 states and 1373 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:57,200 INFO L93 Difference]: Finished difference Result 1641 states and 2292 transitions. [2024-11-19 00:42:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-19 00:42:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:57,207 INFO L225 Difference]: With dead ends: 1641 [2024-11-19 00:42:57,207 INFO L226 Difference]: Without dead ends: 982 [2024-11-19 00:42:57,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:57,210 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 66 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:57,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 571 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-19 00:42:57,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 980. [2024-11-19 00:42:57,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 852 states have (on average 1.3392018779342723) internal successors, (1141), 859 states have internal predecessors, (1141), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-19 00:42:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1365 transitions. [2024-11-19 00:42:57,273 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1365 transitions. Word has length 121 [2024-11-19 00:42:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:57,274 INFO L471 AbstractCegarLoop]: Abstraction has 980 states and 1365 transitions. [2024-11-19 00:42:57,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:57,274 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1365 transitions. [2024-11-19 00:42:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 00:42:57,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:57,276 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:57,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:42:57,277 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:57,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 417061139, now seen corresponding path program 1 times [2024-11-19 00:42:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107852960] [2024-11-19 00:42:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:57,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:57,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107852960] [2024-11-19 00:42:57,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107852960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:57,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:57,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:42:57,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063840274] [2024-11-19 00:42:57,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:57,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:42:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:42:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:57,649 INFO L87 Difference]: Start difference. First operand 980 states and 1365 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:57,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:57,948 INFO L93 Difference]: Finished difference Result 1939 states and 2691 transitions. [2024-11-19 00:42:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:42:57,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-19 00:42:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:57,954 INFO L225 Difference]: With dead ends: 1939 [2024-11-19 00:42:57,955 INFO L226 Difference]: Without dead ends: 1005 [2024-11-19 00:42:57,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-19 00:42:57,957 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 202 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:57,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1306 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:42:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-19 00:42:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 994. [2024-11-19 00:42:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 866 states have (on average 1.3302540415704387) internal successors, (1152), 873 states have internal predecessors, (1152), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-19 00:42:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1376 transitions. [2024-11-19 00:42:58,023 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1376 transitions. Word has length 121 [2024-11-19 00:42:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:58,023 INFO L471 AbstractCegarLoop]: Abstraction has 994 states and 1376 transitions. [2024-11-19 00:42:58,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:58,024 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1376 transitions. [2024-11-19 00:42:58,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 00:42:58,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:58,026 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:58,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 00:42:58,026 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:58,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash 635915857, now seen corresponding path program 1 times [2024-11-19 00:42:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175617475] [2024-11-19 00:42:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:58,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175617475] [2024-11-19 00:42:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175617475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:58,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:42:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993738844] [2024-11-19 00:42:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:58,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:42:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:58,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:42:58,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:42:58,223 INFO L87 Difference]: Start difference. First operand 994 states and 1376 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:58,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:58,333 INFO L93 Difference]: Finished difference Result 1932 states and 2670 transitions. [2024-11-19 00:42:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:42:58,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2024-11-19 00:42:58,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:58,339 INFO L225 Difference]: With dead ends: 1932 [2024-11-19 00:42:58,340 INFO L226 Difference]: Without dead ends: 984 [2024-11-19 00:42:58,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:42:58,343 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 50 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:58,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 729 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:42:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-19 00:42:58,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 982. [2024-11-19 00:42:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 854 states have (on average 1.3278688524590163) internal successors, (1134), 861 states have internal predecessors, (1134), 112 states have call successors, (112), 15 states have call predecessors, (112), 15 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-19 00:42:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1358 transitions. [2024-11-19 00:42:58,405 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1358 transitions. Word has length 121 [2024-11-19 00:42:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:58,405 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1358 transitions. [2024-11-19 00:42:58,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:58,406 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1358 transitions. [2024-11-19 00:42:58,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 00:42:58,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:58,407 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:58,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 00:42:58,407 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:58,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1095319066, now seen corresponding path program 1 times [2024-11-19 00:42:58,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480697196] [2024-11-19 00:42:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:58,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:58,806 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:58,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:58,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480697196] [2024-11-19 00:42:58,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480697196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:58,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:58,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 00:42:58,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623611706] [2024-11-19 00:42:58,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:58,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 00:42:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:58,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 00:42:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:42:58,809 INFO L87 Difference]: Start difference. First operand 982 states and 1358 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:59,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:42:59,044 INFO L93 Difference]: Finished difference Result 1646 states and 2266 transitions. [2024-11-19 00:42:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:42:59,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-19 00:42:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:42:59,050 INFO L225 Difference]: With dead ends: 1646 [2024-11-19 00:42:59,050 INFO L226 Difference]: Without dead ends: 987 [2024-11-19 00:42:59,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:59,053 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 126 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:42:59,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 788 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:42:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2024-11-19 00:42:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 935. [2024-11-19 00:42:59,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 815 states have (on average 1.3214723926380367) internal successors, (1077), 821 states have internal predecessors, (1077), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:42:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1281 transitions. [2024-11-19 00:42:59,116 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1281 transitions. Word has length 122 [2024-11-19 00:42:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:42:59,117 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1281 transitions. [2024-11-19 00:42:59,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:42:59,120 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1281 transitions. [2024-11-19 00:42:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 00:42:59,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:42:59,122 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:42:59,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 00:42:59,122 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:42:59,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:42:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash -240964163, now seen corresponding path program 1 times [2024-11-19 00:42:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:42:59,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936978997] [2024-11-19 00:42:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:42:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:42:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:42:59,733 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:42:59,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:42:59,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936978997] [2024-11-19 00:42:59,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936978997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:42:59,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:42:59,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:42:59,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011144942] [2024-11-19 00:42:59,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:42:59,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:42:59,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:42:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:42:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:42:59,735 INFO L87 Difference]: Start difference. First operand 935 states and 1281 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:00,104 INFO L93 Difference]: Finished difference Result 2039 states and 2783 transitions. [2024-11-19 00:43:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:43:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-19 00:43:00,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:00,110 INFO L225 Difference]: With dead ends: 2039 [2024-11-19 00:43:00,110 INFO L226 Difference]: Without dead ends: 1107 [2024-11-19 00:43:00,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:43:00,113 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 478 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:00,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 718 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:43:00,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-11-19 00:43:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 950. [2024-11-19 00:43:00,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 830 states have (on average 1.319277108433735) internal successors, (1095), 836 states have internal predecessors, (1095), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:00,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1299 transitions. [2024-11-19 00:43:00,184 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1299 transitions. Word has length 122 [2024-11-19 00:43:00,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:00,184 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1299 transitions. [2024-11-19 00:43:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1299 transitions. [2024-11-19 00:43:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 00:43:00,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:00,186 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:00,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 00:43:00,186 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:00,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash -942028741, now seen corresponding path program 1 times [2024-11-19 00:43:00,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:00,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845338667] [2024-11-19 00:43:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:00,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:00,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:00,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845338667] [2024-11-19 00:43:00,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845338667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:00,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:00,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:43:00,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161878298] [2024-11-19 00:43:00,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:00,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:43:00,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:00,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:43:00,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:43:00,888 INFO L87 Difference]: Start difference. First operand 950 states and 1299 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:01,364 INFO L93 Difference]: Finished difference Result 2104 states and 2870 transitions. [2024-11-19 00:43:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:43:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-19 00:43:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:01,370 INFO L225 Difference]: With dead ends: 2104 [2024-11-19 00:43:01,371 INFO L226 Difference]: Without dead ends: 1157 [2024-11-19 00:43:01,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-19 00:43:01,374 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 409 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:01,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1807 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:43:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-11-19 00:43:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 954. [2024-11-19 00:43:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 834 states have (on average 1.3177458033573142) internal successors, (1099), 840 states have internal predecessors, (1099), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1303 transitions. [2024-11-19 00:43:01,445 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1303 transitions. Word has length 122 [2024-11-19 00:43:01,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:01,446 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1303 transitions. [2024-11-19 00:43:01,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1303 transitions. [2024-11-19 00:43:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 00:43:01,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:01,449 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:01,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 00:43:01,449 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:01,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash 460635711, now seen corresponding path program 1 times [2024-11-19 00:43:01,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:01,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539213164] [2024-11-19 00:43:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:01,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539213164] [2024-11-19 00:43:02,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539213164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:02,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:02,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:43:02,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456506787] [2024-11-19 00:43:02,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:02,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:43:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:02,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:43:02,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:43:02,422 INFO L87 Difference]: Start difference. First operand 954 states and 1303 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:03,458 INFO L93 Difference]: Finished difference Result 2167 states and 2956 transitions. [2024-11-19 00:43:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:43:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-19 00:43:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:03,465 INFO L225 Difference]: With dead ends: 2167 [2024-11-19 00:43:03,465 INFO L226 Difference]: Without dead ends: 1216 [2024-11-19 00:43:03,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-11-19 00:43:03,468 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 389 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:03,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1975 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:43:03,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-19 00:43:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 962. [2024-11-19 00:43:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 842 states have (on average 1.314726840855107) internal successors, (1107), 848 states have internal predecessors, (1107), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1311 transitions. [2024-11-19 00:43:03,549 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1311 transitions. Word has length 122 [2024-11-19 00:43:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:03,550 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1311 transitions. [2024-11-19 00:43:03,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1311 transitions. [2024-11-19 00:43:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 00:43:03,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:03,554 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:03,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 00:43:03,554 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:03,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash -240428867, now seen corresponding path program 1 times [2024-11-19 00:43:03,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:03,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821734864] [2024-11-19 00:43:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:03,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:03,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:04,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:04,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821734864] [2024-11-19 00:43:04,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821734864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:04,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:04,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:43:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404784294] [2024-11-19 00:43:04,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:04,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:43:04,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:04,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:43:04,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:43:04,077 INFO L87 Difference]: Start difference. First operand 962 states and 1311 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:04,667 INFO L93 Difference]: Finished difference Result 2163 states and 2946 transitions. [2024-11-19 00:43:04,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:43:04,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 122 [2024-11-19 00:43:04,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:04,674 INFO L225 Difference]: With dead ends: 2163 [2024-11-19 00:43:04,674 INFO L226 Difference]: Without dead ends: 1204 [2024-11-19 00:43:04,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:43:04,677 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 346 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:04,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1281 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:43:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-11-19 00:43:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 950. [2024-11-19 00:43:04,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 830 states have (on average 1.3120481927710843) internal successors, (1089), 836 states have internal predecessors, (1089), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:04,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1293 transitions. [2024-11-19 00:43:04,752 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1293 transitions. Word has length 122 [2024-11-19 00:43:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:04,753 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1293 transitions. [2024-11-19 00:43:04,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1293 transitions. [2024-11-19 00:43:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:43:04,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:04,754 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:04,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 00:43:04,755 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:04,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1858872006, now seen corresponding path program 1 times [2024-11-19 00:43:04,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658563859] [2024-11-19 00:43:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:05,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:05,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658563859] [2024-11-19 00:43:05,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658563859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:05,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 00:43:05,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145480883] [2024-11-19 00:43:05,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:05,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 00:43:05,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:05,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 00:43:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:43:05,502 INFO L87 Difference]: Start difference. First operand 950 states and 1293 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:05,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:05,953 INFO L93 Difference]: Finished difference Result 1616 states and 2205 transitions. [2024-11-19 00:43:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 00:43:05,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-19 00:43:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:05,959 INFO L225 Difference]: With dead ends: 1616 [2024-11-19 00:43:05,964 INFO L226 Difference]: Without dead ends: 961 [2024-11-19 00:43:05,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-19 00:43:05,971 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 185 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:05,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1245 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:43:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-19 00:43:06,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 959. [2024-11-19 00:43:06,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 839 states have (on average 1.3087008343265794) internal successors, (1098), 845 states have internal predecessors, (1098), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1302 transitions. [2024-11-19 00:43:06,152 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1302 transitions. Word has length 124 [2024-11-19 00:43:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:06,152 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1302 transitions. [2024-11-19 00:43:06,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 11 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1302 transitions. [2024-11-19 00:43:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:43:06,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:06,158 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:06,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 00:43:06,158 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:06,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:06,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1458442127, now seen corresponding path program 1 times [2024-11-19 00:43:06,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:06,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2755446] [2024-11-19 00:43:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:06,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:06,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2755446] [2024-11-19 00:43:06,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2755446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:06,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:06,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:43:06,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764590328] [2024-11-19 00:43:06,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:06,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:43:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:06,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:43:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:43:06,365 INFO L87 Difference]: Start difference. First operand 959 states and 1302 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:06,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:06,510 INFO L93 Difference]: Finished difference Result 1612 states and 2192 transitions. [2024-11-19 00:43:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:43:06,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-19 00:43:06,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:06,516 INFO L225 Difference]: With dead ends: 1612 [2024-11-19 00:43:06,516 INFO L226 Difference]: Without dead ends: 948 [2024-11-19 00:43:06,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:43:06,518 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 47 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:06,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 701 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:43:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-19 00:43:06,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 944. [2024-11-19 00:43:06,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 824 states have (on average 1.3033980582524272) internal successors, (1074), 830 states have internal predecessors, (1074), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1278 transitions. [2024-11-19 00:43:06,635 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1278 transitions. Word has length 124 [2024-11-19 00:43:06,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:06,635 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1278 transitions. [2024-11-19 00:43:06,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1278 transitions. [2024-11-19 00:43:06,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 00:43:06,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:06,637 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 00:43:06,638 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:06,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:06,638 INFO L85 PathProgramCache]: Analyzing trace with hash 570259053, now seen corresponding path program 1 times [2024-11-19 00:43:06,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234499572] [2024-11-19 00:43:06,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:06,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-19 00:43:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234499572] [2024-11-19 00:43:06,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234499572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:43:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179924676] [2024-11-19 00:43:06,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:06,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:43:06,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:43:06,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:43:06,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:43:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:07,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 00:43:07,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:43:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:07,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:43:07,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179924676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:07,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:43:07,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 00:43:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58335770] [2024-11-19 00:43:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:07,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:43:07,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:07,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:43:07,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:43:07,150 INFO L87 Difference]: Start difference. First operand 944 states and 1278 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:07,253 INFO L93 Difference]: Finished difference Result 1915 states and 2593 transitions. [2024-11-19 00:43:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:43:07,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-19 00:43:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:07,258 INFO L225 Difference]: With dead ends: 1915 [2024-11-19 00:43:07,259 INFO L226 Difference]: Without dead ends: 974 [2024-11-19 00:43:07,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:43:07,261 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:07,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:43:07,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-19 00:43:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2024-11-19 00:43:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 854 states have (on average 1.2927400468384076) internal successors, (1104), 860 states have internal predecessors, (1104), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1308 transitions. [2024-11-19 00:43:07,346 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1308 transitions. Word has length 124 [2024-11-19 00:43:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:07,347 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1308 transitions. [2024-11-19 00:43:07,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:07,347 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1308 transitions. [2024-11-19 00:43:07,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-19 00:43:07,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:07,348 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:07,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:43:07,549 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,SelfDestructingSolverStorable31 [2024-11-19 00:43:07,549 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:07,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:07,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1111849902, now seen corresponding path program 1 times [2024-11-19 00:43:07,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:07,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669981252] [2024-11-19 00:43:07,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:07,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:07,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:07,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669981252] [2024-11-19 00:43:07,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669981252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:07,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:07,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:43:07,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351883838] [2024-11-19 00:43:07,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:07,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:43:07,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:07,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:43:07,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:43:07,749 INFO L87 Difference]: Start difference. First operand 974 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:07,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:07,871 INFO L93 Difference]: Finished difference Result 1922 states and 2579 transitions. [2024-11-19 00:43:07,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:43:07,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-19 00:43:07,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:07,876 INFO L225 Difference]: With dead ends: 1922 [2024-11-19 00:43:07,877 INFO L226 Difference]: Without dead ends: 951 [2024-11-19 00:43:07,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:43:07,879 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 39 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:07,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 581 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:43:07,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2024-11-19 00:43:07,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 947. [2024-11-19 00:43:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 827 states have (on average 1.2817412333736398) internal successors, (1060), 833 states have internal predecessors, (1060), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:07,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1264 transitions. [2024-11-19 00:43:07,992 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1264 transitions. Word has length 126 [2024-11-19 00:43:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:07,993 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1264 transitions. [2024-11-19 00:43:07,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1264 transitions. [2024-11-19 00:43:07,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 00:43:07,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:07,995 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 00:43:07,995 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:07,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:07,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1911816657, now seen corresponding path program 1 times [2024-11-19 00:43:07,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:07,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911432389] [2024-11-19 00:43:07,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:07,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:09,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:09,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911432389] [2024-11-19 00:43:09,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911432389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:09,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:09,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 00:43:09,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147835039] [2024-11-19 00:43:09,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:09,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:43:09,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:09,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:43:09,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:43:09,232 INFO L87 Difference]: Start difference. First operand 947 states and 1264 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:10,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:10,115 INFO L93 Difference]: Finished difference Result 1874 states and 2510 transitions. [2024-11-19 00:43:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 00:43:10,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-19 00:43:10,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:10,122 INFO L225 Difference]: With dead ends: 1874 [2024-11-19 00:43:10,122 INFO L226 Difference]: Without dead ends: 1216 [2024-11-19 00:43:10,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:43:10,124 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 227 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:10,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1799 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:43:10,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-11-19 00:43:10,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1010. [2024-11-19 00:43:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 890 states have (on average 1.2797752808988765) internal successors, (1139), 896 states have internal predecessors, (1139), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1343 transitions. [2024-11-19 00:43:10,220 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1343 transitions. Word has length 128 [2024-11-19 00:43:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:10,220 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1343 transitions. [2024-11-19 00:43:10,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1343 transitions. [2024-11-19 00:43:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 00:43:10,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:10,222 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:10,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 00:43:10,222 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:10,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1703092269, now seen corresponding path program 1 times [2024-11-19 00:43:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:10,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862952490] [2024-11-19 00:43:10,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:10,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:10,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:10,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862952490] [2024-11-19 00:43:10,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862952490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:10,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:10,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:43:10,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342517154] [2024-11-19 00:43:10,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:10,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:43:10,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:43:10,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:43:10,575 INFO L87 Difference]: Start difference. First operand 1010 states and 1343 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:10,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:10,914 INFO L93 Difference]: Finished difference Result 1847 states and 2468 transitions. [2024-11-19 00:43:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:43:10,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-19 00:43:10,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:10,920 INFO L225 Difference]: With dead ends: 1847 [2024-11-19 00:43:10,921 INFO L226 Difference]: Without dead ends: 1126 [2024-11-19 00:43:10,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:43:10,923 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 389 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:10,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 791 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:43:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-19 00:43:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1010. [2024-11-19 00:43:11,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 890 states have (on average 1.2775280898876404) internal successors, (1137), 896 states have internal predecessors, (1137), 102 states have call successors, (102), 17 states have call predecessors, (102), 17 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 00:43:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1341 transitions. [2024-11-19 00:43:11,040 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1341 transitions. Word has length 128 [2024-11-19 00:43:11,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:11,040 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1341 transitions. [2024-11-19 00:43:11,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1341 transitions. [2024-11-19 00:43:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 00:43:11,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:11,042 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:11,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 00:43:11,043 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:11,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:11,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1839430099, now seen corresponding path program 1 times [2024-11-19 00:43:11,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:11,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553964319] [2024-11-19 00:43:11,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:11,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-19 00:43:11,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:43:11,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553964319] [2024-11-19 00:43:11,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553964319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:43:11,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:43:11,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:43:11,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104010753] [2024-11-19 00:43:11,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:43:11,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:43:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:43:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:43:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:43:11,379 INFO L87 Difference]: Start difference. First operand 1010 states and 1341 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:43:11,701 INFO L93 Difference]: Finished difference Result 1895 states and 2530 transitions. [2024-11-19 00:43:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:43:11,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 128 [2024-11-19 00:43:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:43:11,710 INFO L225 Difference]: With dead ends: 1895 [2024-11-19 00:43:11,710 INFO L226 Difference]: Without dead ends: 1174 [2024-11-19 00:43:11,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:43:11,713 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 310 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 00:43:11,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 890 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 00:43:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-11-19 00:43:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 851. [2024-11-19 00:43:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 751 states have (on average 1.2756324900133156) internal successors, (958), 755 states have internal predecessors, (958), 84 states have call successors, (84), 15 states have call predecessors, (84), 15 states have return successors, (84), 80 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-19 00:43:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1126 transitions. [2024-11-19 00:43:11,809 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1126 transitions. Word has length 128 [2024-11-19 00:43:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:43:11,810 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1126 transitions. [2024-11-19 00:43:11,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-19 00:43:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1126 transitions. [2024-11-19 00:43:11,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 00:43:11,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:43:11,812 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:43:11,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 00:43:11,812 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:43:11,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:43:11,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1775478827, now seen corresponding path program 1 times [2024-11-19 00:43:11,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:43:11,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989896013] [2024-11-19 00:43:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:43:11,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:43:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:43:39,696 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)