/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 02:15:14,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 02:15:14,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 02:15:14,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 02:15:14,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 02:15:14,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 02:15:14,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 02:15:14,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 02:15:14,427 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 02:15:14,427 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 02:15:14,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 02:15:14,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 02:15:14,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 02:15:14,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 02:15:14,429 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 02:15:14,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 02:15:14,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 02:15:14,430 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 02:15:14,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 02:15:14,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 02:15:14,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 02:15:14,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 02:15:14,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 02:15:14,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 02:15:14,439 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 02:15:14,439 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 02:15:14,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 02:15:14,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 02:15:14,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 02:15:14,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 02:15:14,442 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 02:15:14,442 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 02:15:14,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:15:14,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 02:15:14,443 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 02:15:14,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 02:15:14,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 02:15:14,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 02:15:14,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 02:15:14,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 02:15:14,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 02:15:14,720 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 02:15:14,721 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 02:15:14,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-12-21 02:15:15,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 02:15:16,054 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 02:15:16,055 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i [2023-12-21 02:15:16,062 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946e440d4/62f843895dc34a69aa5dd119dce81cab/FLAGef21b7849 [2023-12-21 02:15:16,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946e440d4/62f843895dc34a69aa5dd119dce81cab [2023-12-21 02:15:16,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 02:15:16,085 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 02:15:16,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 02:15:16,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 02:15:16,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 02:15:16,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c23eabf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16, skipping insertion in model container [2023-12-21 02:15:16,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,135 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 02:15:16,263 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-12-21 02:15:16,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:15:16,328 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 02:15:16,337 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-71.i[916,929] [2023-12-21 02:15:16,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 02:15:16,390 INFO L206 MainTranslator]: Completed translation [2023-12-21 02:15:16,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16 WrapperNode [2023-12-21 02:15:16,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 02:15:16,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 02:15:16,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 02:15:16,394 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 02:15:16,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,469 INFO L138 Inliner]: procedures = 26, calls = 182, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 527 [2023-12-21 02:15:16,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 02:15:16,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 02:15:16,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 02:15:16,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 02:15:16,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,509 INFO L175 MemorySlicer]: Split 138 memory accesses to 15 slices as follows [2, 11, 6, 22, 22, 22, 6, 8, 5, 3, 8, 7, 3, 6, 7]. 16 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2023-12-21 02:15:16,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 02:15:16,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 02:15:16,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 02:15:16,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 02:15:16,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (1/1) ... [2023-12-21 02:15:16,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 02:15:16,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:15:16,597 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) [2023-12-21 02:15:16,628 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 [2023-12-21 02:15:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 02:15:16,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 02:15:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 02:15:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 02:15:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 02:15:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 02:15:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 02:15:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 02:15:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 02:15:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 02:15:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 02:15:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 02:15:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 02:15:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 02:15:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 02:15:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 02:15:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 02:15:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 02:15:16,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 02:15:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 02:15:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 02:15:16,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 02:15:16,817 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 02:15:16,821 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 02:15:17,275 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 02:15:17,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 02:15:17,360 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 02:15:17,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:15:17 BoogieIcfgContainer [2023-12-21 02:15:17,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 02:15:17,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 02:15:17,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 02:15:17,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 02:15:17,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:15:16" (1/3) ... [2023-12-21 02:15:17,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a78f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:15:17, skipping insertion in model container [2023-12-21 02:15:17,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:15:16" (2/3) ... [2023-12-21 02:15:17,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673a78f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:15:17, skipping insertion in model container [2023-12-21 02:15:17,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:15:17" (3/3) ... [2023-12-21 02:15:17,367 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-71.i [2023-12-21 02:15:17,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 02:15:17,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 02:15:17,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 02:15:17,416 INFO L357 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, mHoare=true, 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;@13d27260, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 02:15:17,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 02:15:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:15:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:15:17,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:17,430 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:17,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:17,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash 206066625, now seen corresponding path program 1 times [2023-12-21 02:15:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:17,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089124822] [2023-12-21 02:15:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:17,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:17,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:17,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089124822] [2023-12-21 02:15:17,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089124822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:17,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:17,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 02:15:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693613493] [2023-12-21 02:15:17,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:17,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 02:15:17,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:17,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 02:15:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:15:17,908 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:15:17,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:17,963 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-21 02:15:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 02:15:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-21 02:15:17,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:17,974 INFO L225 Difference]: With dead ends: 193 [2023-12-21 02:15:17,974 INFO L226 Difference]: Without dead ends: 96 [2023-12-21 02:15:17,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 02:15:17,984 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:17,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-21 02:15:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-21 02:15:18,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:15:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-21 02:15:18,043 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-21 02:15:18,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:18,043 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-21 02:15:18,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 02:15:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-21 02:15:18,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:15:18,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:18,052 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:18,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 02:15:18,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:18,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2021636071, now seen corresponding path program 1 times [2023-12-21 02:15:18,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:18,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49384168] [2023-12-21 02:15:18,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:18,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:18,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49384168] [2023-12-21 02:15:18,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49384168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:18,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:18,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:15:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633939611] [2023-12-21 02:15:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:18,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:15:18,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:18,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:15:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:15:18,502 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:18,585 INFO L93 Difference]: Finished difference Result 199 states and 288 transitions. [2023-12-21 02:15:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:18,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:15:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:18,590 INFO L225 Difference]: With dead ends: 199 [2023-12-21 02:15:18,590 INFO L226 Difference]: Without dead ends: 104 [2023-12-21 02:15:18,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:18,594 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:18,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:18,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-21 02:15:18,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-21 02:15:18,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:15:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-21 02:15:18,612 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2023-12-21 02:15:18,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:18,614 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-21 02:15:18,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:18,614 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-21 02:15:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:15:18,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:18,618 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:18,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 02:15:18,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:18,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2078894373, now seen corresponding path program 1 times [2023-12-21 02:15:18,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:18,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448140172] [2023-12-21 02:15:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:18,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:18,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448140172] [2023-12-21 02:15:18,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448140172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:18,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:18,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 02:15:18,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806590049] [2023-12-21 02:15:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:18,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 02:15:18,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:18,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 02:15:18,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 02:15:18,880 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:18,926 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2023-12-21 02:15:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:15:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:18,930 INFO L225 Difference]: With dead ends: 199 [2023-12-21 02:15:18,930 INFO L226 Difference]: Without dead ends: 102 [2023-12-21 02:15:18,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:18,936 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:18,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-21 02:15:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-21 02:15:18,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-21 02:15:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-21 02:15:18,950 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-21 02:15:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:18,951 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-21 02:15:18,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-21 02:15:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 02:15:18,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:18,956 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:18,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 02:15:18,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:18,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2078953955, now seen corresponding path program 1 times [2023-12-21 02:15:18,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:18,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987046477] [2023-12-21 02:15:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:19,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:19,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987046477] [2023-12-21 02:15:19,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987046477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:19,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:19,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:19,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456756319] [2023-12-21 02:15:19,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:19,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:19,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:19,378 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:19,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:19,509 INFO L93 Difference]: Finished difference Result 271 states and 385 transitions. [2023-12-21 02:15:19,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:15:19,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-21 02:15:19,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:19,511 INFO L225 Difference]: With dead ends: 271 [2023-12-21 02:15:19,511 INFO L226 Difference]: Without dead ends: 172 [2023-12-21 02:15:19,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:19,517 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 124 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:19,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 622 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-21 02:15:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2023-12-21 02:15:19,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-21 02:15:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2023-12-21 02:15:19,545 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 139 [2023-12-21 02:15:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:19,547 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2023-12-21 02:15:19,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2023-12-21 02:15:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 02:15:19,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:19,549 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:19,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 02:15:19,549 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:19,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:19,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1846418358, now seen corresponding path program 1 times [2023-12-21 02:15:19,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:19,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615295071] [2023-12-21 02:15:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:19,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:20,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:20,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615295071] [2023-12-21 02:15:20,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615295071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:20,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:20,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:20,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155504318] [2023-12-21 02:15:20,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:20,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:20,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:20,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:20,119 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:20,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:20,342 INFO L93 Difference]: Finished difference Result 496 states and 697 transitions. [2023-12-21 02:15:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:15:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2023-12-21 02:15:20,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:20,346 INFO L225 Difference]: With dead ends: 496 [2023-12-21 02:15:20,346 INFO L226 Difference]: Without dead ends: 328 [2023-12-21 02:15:20,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:15:20,348 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 236 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:20,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 761 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:20,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-21 02:15:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 256. [2023-12-21 02:15:20,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 206 states have (on average 1.3106796116504855) internal successors, (270), 209 states have internal predecessors, (270), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-21 02:15:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 360 transitions. [2023-12-21 02:15:20,376 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 360 transitions. Word has length 140 [2023-12-21 02:15:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:20,377 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 360 transitions. [2023-12-21 02:15:20,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 360 transitions. [2023-12-21 02:15:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 02:15:20,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:20,378 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:20,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 02:15:20,379 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:20,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:20,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1611679062, now seen corresponding path program 1 times [2023-12-21 02:15:20,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:20,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845845738] [2023-12-21 02:15:20,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:20,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:20,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:21,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:21,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845845738] [2023-12-21 02:15:21,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845845738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:21,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:21,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236481876] [2023-12-21 02:15:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:21,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:21,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:21,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:21,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:21,038 INFO L87 Difference]: Start difference. First operand 256 states and 360 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:21,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:21,262 INFO L93 Difference]: Finished difference Result 520 states and 727 transitions. [2023-12-21 02:15:21,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:15:21,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-21 02:15:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:21,265 INFO L225 Difference]: With dead ends: 520 [2023-12-21 02:15:21,265 INFO L226 Difference]: Without dead ends: 285 [2023-12-21 02:15:21,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:21,267 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 214 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:21,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 870 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:21,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-21 02:15:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 263. [2023-12-21 02:15:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 212 states have (on average 1.3018867924528301) internal successors, (276), 215 states have internal predecessors, (276), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-21 02:15:21,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 366 transitions. [2023-12-21 02:15:21,291 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 366 transitions. Word has length 141 [2023-12-21 02:15:21,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:21,291 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 366 transitions. [2023-12-21 02:15:21,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 366 transitions. [2023-12-21 02:15:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 02:15:21,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:21,294 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:21,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 02:15:21,294 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:21,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1929151229, now seen corresponding path program 1 times [2023-12-21 02:15:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593802814] [2023-12-21 02:15:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:21,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:21,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:21,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593802814] [2023-12-21 02:15:21,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593802814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:21,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:21,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:21,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912004473] [2023-12-21 02:15:21,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:21,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:21,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:21,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:21,579 INFO L87 Difference]: Start difference. First operand 263 states and 366 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:21,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:21,639 INFO L93 Difference]: Finished difference Result 517 states and 717 transitions. [2023-12-21 02:15:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:15:21,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2023-12-21 02:15:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:21,643 INFO L225 Difference]: With dead ends: 517 [2023-12-21 02:15:21,643 INFO L226 Difference]: Without dead ends: 275 [2023-12-21 02:15:21,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:21,644 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 98 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:21,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 558 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:21,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-21 02:15:21,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 251. [2023-12-21 02:15:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 200 states have (on average 1.28) internal successors, (256), 203 states have internal predecessors, (256), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-21 02:15:21,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2023-12-21 02:15:21,664 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 141 [2023-12-21 02:15:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:21,664 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2023-12-21 02:15:21,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2023-12-21 02:15:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:15:21,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:21,666 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 02:15:21,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:21,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1117388278, now seen corresponding path program 1 times [2023-12-21 02:15:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:21,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130358342] [2023-12-21 02:15:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:21,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:21,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:21,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130358342] [2023-12-21 02:15:21,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130358342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:21,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:21,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:21,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912126413] [2023-12-21 02:15:21,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:21,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:21,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:21,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:21,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:21,951 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:22,009 INFO L93 Difference]: Finished difference Result 477 states and 656 transitions. [2023-12-21 02:15:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-21 02:15:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:22,011 INFO L225 Difference]: With dead ends: 477 [2023-12-21 02:15:22,011 INFO L226 Difference]: Without dead ends: 247 [2023-12-21 02:15:22,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:22,013 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 88 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:22,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 593 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-21 02:15:22,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2023-12-21 02:15:22,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.268041237113402) internal successors, (246), 197 states have internal predecessors, (246), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-21 02:15:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2023-12-21 02:15:22,037 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 142 [2023-12-21 02:15:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:22,037 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2023-12-21 02:15:22,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:22,038 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2023-12-21 02:15:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:15:22,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:22,039 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:22,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 02:15:22,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:22,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:22,040 INFO L85 PathProgramCache]: Analyzing trace with hash -53240966, now seen corresponding path program 1 times [2023-12-21 02:15:22,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:22,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891823376] [2023-12-21 02:15:22,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:22,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891823376] [2023-12-21 02:15:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891823376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:23,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:23,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:15:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183524134] [2023-12-21 02:15:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:23,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:15:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:15:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:15:23,139 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:23,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:23,988 INFO L93 Difference]: Finished difference Result 572 states and 778 transitions. [2023-12-21 02:15:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:15:23,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 142 [2023-12-21 02:15:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:23,993 INFO L225 Difference]: With dead ends: 572 [2023-12-21 02:15:23,993 INFO L226 Difference]: Without dead ends: 348 [2023-12-21 02:15:23,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2023-12-21 02:15:23,996 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 458 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:23,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 660 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:15:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-21 02:15:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2023-12-21 02:15:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 241 states have (on average 1.2738589211618256) internal successors, (307), 245 states have internal predecessors, (307), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-21 02:15:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 401 transitions. [2023-12-21 02:15:24,059 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 401 transitions. Word has length 142 [2023-12-21 02:15:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:24,060 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 401 transitions. [2023-12-21 02:15:24,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.166666666666667) internal successors, (50), 13 states have internal predecessors, (50), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 401 transitions. [2023-12-21 02:15:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:15:24,061 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:24,061 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:24,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 02:15:24,062 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:24,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 957876284, now seen corresponding path program 1 times [2023-12-21 02:15:24,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:24,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435531419] [2023-12-21 02:15:24,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:24,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:24,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435531419] [2023-12-21 02:15:24,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435531419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:24,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:24,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:24,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086171349] [2023-12-21 02:15:24,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:24,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:24,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:24,516 INFO L87 Difference]: Start difference. First operand 296 states and 401 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:24,682 INFO L93 Difference]: Finished difference Result 578 states and 782 transitions. [2023-12-21 02:15:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:15:24,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-21 02:15:24,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:24,685 INFO L225 Difference]: With dead ends: 578 [2023-12-21 02:15:24,685 INFO L226 Difference]: Without dead ends: 307 [2023-12-21 02:15:24,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:24,687 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 134 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:24,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 871 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:24,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-21 02:15:24,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 304. [2023-12-21 02:15:24,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 246 states have (on average 1.2642276422764227) internal successors, (311), 250 states have internal predecessors, (311), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-21 02:15:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 409 transitions. [2023-12-21 02:15:24,722 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 409 transitions. Word has length 142 [2023-12-21 02:15:24,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:24,722 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 409 transitions. [2023-12-21 02:15:24,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 409 transitions. [2023-12-21 02:15:24,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:15:24,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:24,724 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:24,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 02:15:24,724 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:24,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:24,725 INFO L85 PathProgramCache]: Analyzing trace with hash -187254472, now seen corresponding path program 1 times [2023-12-21 02:15:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:24,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203159628] [2023-12-21 02:15:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:25,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:25,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203159628] [2023-12-21 02:15:25,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203159628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:25,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:25,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207098640] [2023-12-21 02:15:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:25,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:25,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:25,111 INFO L87 Difference]: Start difference. First operand 304 states and 409 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:25,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:25,279 INFO L93 Difference]: Finished difference Result 657 states and 887 transitions. [2023-12-21 02:15:25,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:15:25,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-21 02:15:25,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:25,282 INFO L225 Difference]: With dead ends: 657 [2023-12-21 02:15:25,282 INFO L226 Difference]: Without dead ends: 378 [2023-12-21 02:15:25,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:15:25,283 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 202 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:25,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1255 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:25,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-12-21 02:15:25,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 346. [2023-12-21 02:15:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 271 states have (on average 1.2398523985239853) internal successors, (336), 275 states have internal predecessors, (336), 64 states have call successors, (64), 10 states have call predecessors, (64), 10 states have return successors, (64), 60 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-21 02:15:25,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 464 transitions. [2023-12-21 02:15:25,319 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 464 transitions. Word has length 142 [2023-12-21 02:15:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:25,319 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 464 transitions. [2023-12-21 02:15:25,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 464 transitions. [2023-12-21 02:15:25,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 02:15:25,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:25,321 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:25,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 02:15:25,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:25,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:25,322 INFO L85 PathProgramCache]: Analyzing trace with hash 823862778, now seen corresponding path program 1 times [2023-12-21 02:15:25,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:25,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049982872] [2023-12-21 02:15:25,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:25,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:25,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049982872] [2023-12-21 02:15:25,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049982872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:25,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:25,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:15:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758260705] [2023-12-21 02:15:25,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:25,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:15:25,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:15:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:15:25,944 INFO L87 Difference]: Start difference. First operand 346 states and 464 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:26,452 INFO L93 Difference]: Finished difference Result 669 states and 896 transitions. [2023-12-21 02:15:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:15:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2023-12-21 02:15:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:26,455 INFO L225 Difference]: With dead ends: 669 [2023-12-21 02:15:26,455 INFO L226 Difference]: Without dead ends: 348 [2023-12-21 02:15:26,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:15:26,457 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 226 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:26,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 577 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:26,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-21 02:15:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2023-12-21 02:15:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 270 states have (on average 1.2333333333333334) internal successors, (333), 274 states have internal predecessors, (333), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 60 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-21 02:15:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 461 transitions. [2023-12-21 02:15:26,499 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 461 transitions. Word has length 142 [2023-12-21 02:15:26,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:26,500 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 461 transitions. [2023-12-21 02:15:26,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 461 transitions. [2023-12-21 02:15:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:15:26,502 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:26,502 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:26,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 02:15:26,502 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:26,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 682123567, now seen corresponding path program 1 times [2023-12-21 02:15:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686674534] [2023-12-21 02:15:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:27,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:27,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686674534] [2023-12-21 02:15:27,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686674534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:27,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:27,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:15:27,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933463837] [2023-12-21 02:15:27,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:27,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:15:27,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:27,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:15:27,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:27,102 INFO L87 Difference]: Start difference. First operand 346 states and 461 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:27,533 INFO L93 Difference]: Finished difference Result 750 states and 1002 transitions. [2023-12-21 02:15:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:15:27,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:15:27,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:27,536 INFO L225 Difference]: With dead ends: 750 [2023-12-21 02:15:27,536 INFO L226 Difference]: Without dead ends: 429 [2023-12-21 02:15:27,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:15:27,538 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 180 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:27,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1239 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-21 02:15:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 406. [2023-12-21 02:15:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.2445820433436532) internal successors, (402), 328 states have internal predecessors, (402), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:15:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 542 transitions. [2023-12-21 02:15:27,599 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 542 transitions. Word has length 143 [2023-12-21 02:15:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:27,599 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 542 transitions. [2023-12-21 02:15:27,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 542 transitions. [2023-12-21 02:15:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:15:27,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:27,601 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:27,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 02:15:27,601 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:27,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1042183336, now seen corresponding path program 1 times [2023-12-21 02:15:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631622872] [2023-12-21 02:15:27,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:27,832 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:27,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:27,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631622872] [2023-12-21 02:15:27,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631622872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:27,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:27,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:27,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134129418] [2023-12-21 02:15:27,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:27,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:27,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:27,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:27,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:27,835 INFO L87 Difference]: Start difference. First operand 406 states and 542 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:27,959 INFO L93 Difference]: Finished difference Result 874 states and 1169 transitions. [2023-12-21 02:15:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:15:27,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:15:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:27,963 INFO L225 Difference]: With dead ends: 874 [2023-12-21 02:15:27,963 INFO L226 Difference]: Without dead ends: 493 [2023-12-21 02:15:27,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:27,964 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 141 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:27,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 550 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-21 02:15:28,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 406. [2023-12-21 02:15:28,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.241486068111455) internal successors, (401), 328 states have internal predecessors, (401), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:15:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 541 transitions. [2023-12-21 02:15:28,012 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 541 transitions. Word has length 143 [2023-12-21 02:15:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:28,013 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 541 transitions. [2023-12-21 02:15:28,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 541 transitions. [2023-12-21 02:15:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:15:28,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:28,015 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:28,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 02:15:28,015 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:28,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1019825518, now seen corresponding path program 1 times [2023-12-21 02:15:28,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:28,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573123393] [2023-12-21 02:15:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:28,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:28,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:28,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573123393] [2023-12-21 02:15:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573123393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:28,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:28,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:28,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82100966] [2023-12-21 02:15:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:28,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:28,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:28,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:28,245 INFO L87 Difference]: Start difference. First operand 406 states and 541 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:28,378 INFO L93 Difference]: Finished difference Result 810 states and 1079 transitions. [2023-12-21 02:15:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:15:28,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:15:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:28,381 INFO L225 Difference]: With dead ends: 810 [2023-12-21 02:15:28,381 INFO L226 Difference]: Without dead ends: 429 [2023-12-21 02:15:28,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:28,384 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 136 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:28,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 535 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:28,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-21 02:15:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 406. [2023-12-21 02:15:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 323 states have (on average 1.238390092879257) internal successors, (400), 328 states have internal predecessors, (400), 70 states have call successors, (70), 12 states have call predecessors, (70), 12 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:15:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 540 transitions. [2023-12-21 02:15:28,429 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 540 transitions. Word has length 143 [2023-12-21 02:15:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:28,430 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 540 transitions. [2023-12-21 02:15:28,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:28,431 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 540 transitions. [2023-12-21 02:15:28,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 02:15:28,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:28,433 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:28,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 02:15:28,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:28,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:28,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1242836, now seen corresponding path program 1 times [2023-12-21 02:15:28,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:28,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11293524] [2023-12-21 02:15:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:28,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:28,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:28,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11293524] [2023-12-21 02:15:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11293524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:28,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344710790] [2023-12-21 02:15:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:28,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:28,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:28,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:28,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:28,641 INFO L87 Difference]: Start difference. First operand 406 states and 540 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:28,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:28,755 INFO L93 Difference]: Finished difference Result 788 states and 1046 transitions. [2023-12-21 02:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:28,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-21 02:15:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:28,758 INFO L225 Difference]: With dead ends: 788 [2023-12-21 02:15:28,758 INFO L226 Difference]: Without dead ends: 407 [2023-12-21 02:15:28,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:28,759 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 87 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:28,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 648 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-21 02:15:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 404. [2023-12-21 02:15:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 320 states have (on average 1.23125) internal successors, (394), 325 states have internal predecessors, (394), 70 states have call successors, (70), 13 states have call predecessors, (70), 13 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:15:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 534 transitions. [2023-12-21 02:15:28,804 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 534 transitions. Word has length 143 [2023-12-21 02:15:28,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:28,804 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 534 transitions. [2023-12-21 02:15:28,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 534 transitions. [2023-12-21 02:15:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 02:15:28,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:28,807 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:28,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 02:15:28,807 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:28,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:28,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1305691030, now seen corresponding path program 1 times [2023-12-21 02:15:28,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:28,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310734934] [2023-12-21 02:15:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:28,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:29,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:29,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:29,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310734934] [2023-12-21 02:15:29,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310734934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:29,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:29,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:15:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852340097] [2023-12-21 02:15:29,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:29,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:15:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:15:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:29,559 INFO L87 Difference]: Start difference. First operand 404 states and 534 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:29,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:29,992 INFO L93 Difference]: Finished difference Result 1257 states and 1665 transitions. [2023-12-21 02:15:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 02:15:29,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2023-12-21 02:15:29,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:29,997 INFO L225 Difference]: With dead ends: 1257 [2023-12-21 02:15:29,997 INFO L226 Difference]: Without dead ends: 878 [2023-12-21 02:15:29,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:15:30,000 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 249 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:30,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 959 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:15:30,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2023-12-21 02:15:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 535. [2023-12-21 02:15:30,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 445 states have (on average 1.256179775280899) internal successors, (559), 452 states have internal predecessors, (559), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 707 transitions. [2023-12-21 02:15:30,055 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 707 transitions. Word has length 144 [2023-12-21 02:15:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:30,056 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 707 transitions. [2023-12-21 02:15:30,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 707 transitions. [2023-12-21 02:15:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:30,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:30,058 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:30,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 02:15:30,058 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:30,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash 276880682, now seen corresponding path program 1 times [2023-12-21 02:15:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:30,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616973063] [2023-12-21 02:15:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:30,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:31,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:31,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616973063] [2023-12-21 02:15:31,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616973063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:31,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:31,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 02:15:31,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562850703] [2023-12-21 02:15:31,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:31,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 02:15:31,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 02:15:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:15:31,447 INFO L87 Difference]: Start difference. First operand 535 states and 707 transitions. Second operand has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:32,320 INFO L93 Difference]: Finished difference Result 1343 states and 1775 transitions. [2023-12-21 02:15:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:15:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 145 [2023-12-21 02:15:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:32,325 INFO L225 Difference]: With dead ends: 1343 [2023-12-21 02:15:32,325 INFO L226 Difference]: Without dead ends: 833 [2023-12-21 02:15:32,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2023-12-21 02:15:32,327 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 712 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:32,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 671 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 02:15:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-12-21 02:15:32,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 571. [2023-12-21 02:15:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 481 states have (on average 1.2661122661122661) internal successors, (609), 488 states have internal predecessors, (609), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 757 transitions. [2023-12-21 02:15:32,375 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 757 transitions. Word has length 145 [2023-12-21 02:15:32,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:32,375 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 757 transitions. [2023-12-21 02:15:32,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:32,376 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 757 transitions. [2023-12-21 02:15:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:32,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:32,377 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:32,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 02:15:32,378 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:32,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:32,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1311467220, now seen corresponding path program 1 times [2023-12-21 02:15:32,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:32,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688334551] [2023-12-21 02:15:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:32,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:33,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:33,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688334551] [2023-12-21 02:15:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688334551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:15:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868417096] [2023-12-21 02:15:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:33,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:15:33,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:33,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:15:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:15:33,436 INFO L87 Difference]: Start difference. First operand 571 states and 757 transitions. Second operand has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:34,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:34,455 INFO L93 Difference]: Finished difference Result 1389 states and 1835 transitions. [2023-12-21 02:15:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:15:34,456 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 145 [2023-12-21 02:15:34,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:34,459 INFO L225 Difference]: With dead ends: 1389 [2023-12-21 02:15:34,459 INFO L226 Difference]: Without dead ends: 843 [2023-12-21 02:15:34,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:15:34,461 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 622 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:34,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 806 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 02:15:34,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-12-21 02:15:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 593. [2023-12-21 02:15:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 503 states have (on average 1.268389662027833) internal successors, (638), 510 states have internal predecessors, (638), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 786 transitions. [2023-12-21 02:15:34,515 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 786 transitions. Word has length 145 [2023-12-21 02:15:34,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:34,515 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 786 transitions. [2023-12-21 02:15:34,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:34,516 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 786 transitions. [2023-12-21 02:15:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:34,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:34,517 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:34,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 02:15:34,518 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:34,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 98888182, now seen corresponding path program 1 times [2023-12-21 02:15:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:34,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008418037] [2023-12-21 02:15:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:34,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:35,051 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:35,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:35,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008418037] [2023-12-21 02:15:35,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008418037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:35,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:35,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:15:35,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514194562] [2023-12-21 02:15:35,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:35,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:15:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:35,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:15:35,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:35,053 INFO L87 Difference]: Start difference. First operand 593 states and 786 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:35,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:35,611 INFO L93 Difference]: Finished difference Result 1241 states and 1641 transitions. [2023-12-21 02:15:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:15:35,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-21 02:15:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:35,615 INFO L225 Difference]: With dead ends: 1241 [2023-12-21 02:15:35,615 INFO L226 Difference]: Without dead ends: 673 [2023-12-21 02:15:35,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:15:35,617 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 232 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:35,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 683 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 02:15:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-21 02:15:35,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 593. [2023-12-21 02:15:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 503 states have (on average 1.2664015904572565) internal successors, (637), 510 states have internal predecessors, (637), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:35,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 785 transitions. [2023-12-21 02:15:35,674 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 785 transitions. Word has length 145 [2023-12-21 02:15:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:35,675 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 785 transitions. [2023-12-21 02:15:35,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 785 transitions. [2023-12-21 02:15:35,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:35,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:35,677 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:35,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 02:15:35,677 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:35,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash -41660428, now seen corresponding path program 1 times [2023-12-21 02:15:35,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141543732] [2023-12-21 02:15:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:35,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:36,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:36,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141543732] [2023-12-21 02:15:36,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141543732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:36,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:36,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 02:15:36,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12286028] [2023-12-21 02:15:36,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:36,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 02:15:36,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:36,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 02:15:36,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 02:15:36,331 INFO L87 Difference]: Start difference. First operand 593 states and 785 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:37,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:37,498 INFO L93 Difference]: Finished difference Result 1385 states and 1831 transitions. [2023-12-21 02:15:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:15:37,499 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-21 02:15:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:37,502 INFO L225 Difference]: With dead ends: 1385 [2023-12-21 02:15:37,502 INFO L226 Difference]: Without dead ends: 817 [2023-12-21 02:15:37,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2023-12-21 02:15:37,504 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 439 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:37,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1284 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 02:15:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2023-12-21 02:15:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 605. [2023-12-21 02:15:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 515 states have (on average 1.2640776699029126) internal successors, (651), 522 states have internal predecessors, (651), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 799 transitions. [2023-12-21 02:15:37,557 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 799 transitions. Word has length 145 [2023-12-21 02:15:37,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:37,557 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 799 transitions. [2023-12-21 02:15:37,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 799 transitions. [2023-12-21 02:15:37,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:37,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:37,559 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:37,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 02:15:37,559 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:37,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:37,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1730604170, now seen corresponding path program 1 times [2023-12-21 02:15:37,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:37,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006542289] [2023-12-21 02:15:37,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:37,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:38,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:38,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:38,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006542289] [2023-12-21 02:15:38,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006542289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:38,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:38,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-21 02:15:38,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749982809] [2023-12-21 02:15:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:38,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 02:15:38,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 02:15:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-12-21 02:15:38,715 INFO L87 Difference]: Start difference. First operand 605 states and 799 transitions. Second operand has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-21 02:15:40,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:40,300 INFO L93 Difference]: Finished difference Result 1407 states and 1855 transitions. [2023-12-21 02:15:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:15:40,301 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) Word has length 145 [2023-12-21 02:15:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:40,304 INFO L225 Difference]: With dead ends: 1407 [2023-12-21 02:15:40,304 INFO L226 Difference]: Without dead ends: 827 [2023-12-21 02:15:40,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=755, Unknown=0, NotChecked=0, Total=930 [2023-12-21 02:15:40,306 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 325 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:40,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1488 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 02:15:40,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-12-21 02:15:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 603. [2023-12-21 02:15:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 513 states have (on average 1.2612085769980508) internal successors, (647), 520 states have internal predecessors, (647), 74 states have call successors, (74), 15 states have call predecessors, (74), 15 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-21 02:15:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 795 transitions. [2023-12-21 02:15:40,354 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 795 transitions. Word has length 145 [2023-12-21 02:15:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:40,355 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 795 transitions. [2023-12-21 02:15:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.533333333333333) internal successors, (53), 17 states have internal predecessors, (53), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-21 02:15:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 795 transitions. [2023-12-21 02:15:40,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:40,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:40,357 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:40,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 02:15:40,357 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:40,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash -232592408, now seen corresponding path program 1 times [2023-12-21 02:15:40,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:40,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845034607] [2023-12-21 02:15:40,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:40,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:40,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:40,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845034607] [2023-12-21 02:15:40,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845034607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:40,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:40,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:15:40,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975747852] [2023-12-21 02:15:40,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:40,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:15:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:40,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:15:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:15:40,704 INFO L87 Difference]: Start difference. First operand 603 states and 795 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:41,130 INFO L93 Difference]: Finished difference Result 1336 states and 1760 transitions. [2023-12-21 02:15:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:15:41,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:15:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:41,134 INFO L225 Difference]: With dead ends: 1336 [2023-12-21 02:15:41,134 INFO L226 Difference]: Without dead ends: 758 [2023-12-21 02:15:41,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:15:41,136 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 192 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:41,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 890 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-12-21 02:15:41,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 574. [2023-12-21 02:15:41,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 486 states have (on average 1.2592592592592593) internal successors, (612), 492 states have internal predecessors, (612), 72 states have call successors, (72), 15 states have call predecessors, (72), 15 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:15:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 756 transitions. [2023-12-21 02:15:41,178 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 756 transitions. Word has length 145 [2023-12-21 02:15:41,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:41,178 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 756 transitions. [2023-12-21 02:15:41,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 756 transitions. [2023-12-21 02:15:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:41,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:41,180 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:41,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 02:15:41,181 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:41,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:41,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1820940310, now seen corresponding path program 1 times [2023-12-21 02:15:41,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:41,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805933160] [2023-12-21 02:15:41,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:41,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:41,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:41,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805933160] [2023-12-21 02:15:41,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805933160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:41,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:41,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:41,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586895334] [2023-12-21 02:15:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:41,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:41,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:41,357 INFO L87 Difference]: Start difference. First operand 574 states and 756 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:41,557 INFO L93 Difference]: Finished difference Result 1255 states and 1647 transitions. [2023-12-21 02:15:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:15:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:15:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:41,561 INFO L225 Difference]: With dead ends: 1255 [2023-12-21 02:15:41,561 INFO L226 Difference]: Without dead ends: 706 [2023-12-21 02:15:41,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:41,563 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 125 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:41,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 932 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-12-21 02:15:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 560. [2023-12-21 02:15:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 472 states have (on average 1.2542372881355932) internal successors, (592), 478 states have internal predecessors, (592), 72 states have call successors, (72), 15 states have call predecessors, (72), 15 states have return successors, (72), 66 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-21 02:15:41,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 736 transitions. [2023-12-21 02:15:41,606 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 736 transitions. Word has length 145 [2023-12-21 02:15:41,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:41,606 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 736 transitions. [2023-12-21 02:15:41,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:41,606 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 736 transitions. [2023-12-21 02:15:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:41,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:41,608 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:41,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 02:15:41,608 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:41,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -410584908, now seen corresponding path program 1 times [2023-12-21 02:15:41,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:41,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589573166] [2023-12-21 02:15:41,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:42,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:42,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589573166] [2023-12-21 02:15:42,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589573166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:42,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:42,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:15:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918748893] [2023-12-21 02:15:42,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:42,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:15:42,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:42,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:15:42,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:42,249 INFO L87 Difference]: Start difference. First operand 560 states and 736 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:42,710 INFO L93 Difference]: Finished difference Result 1187 states and 1553 transitions. [2023-12-21 02:15:42,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:15:42,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-21 02:15:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:42,714 INFO L225 Difference]: With dead ends: 1187 [2023-12-21 02:15:42,714 INFO L226 Difference]: Without dead ends: 652 [2023-12-21 02:15:42,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:15:42,715 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 356 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:42,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 526 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2023-12-21 02:15:42,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 527. [2023-12-21 02:15:42,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 441 states have (on average 1.2380952380952381) internal successors, (546), 446 states have internal predecessors, (546), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (70), 65 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-21 02:15:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 686 transitions. [2023-12-21 02:15:42,760 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 686 transitions. Word has length 145 [2023-12-21 02:15:42,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:42,761 INFO L495 AbstractCegarLoop]: Abstraction has 527 states and 686 transitions. [2023-12-21 02:15:42,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:42,761 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 686 transitions. [2023-12-21 02:15:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:42,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:42,762 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:42,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 02:15:42,763 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:42,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1690448586, now seen corresponding path program 1 times [2023-12-21 02:15:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:42,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137860833] [2023-12-21 02:15:42,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:43,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137860833] [2023-12-21 02:15:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137860833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:43,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:43,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:15:43,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388272529] [2023-12-21 02:15:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:43,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:15:43,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:15:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:15:43,090 INFO L87 Difference]: Start difference. First operand 527 states and 686 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:43,498 INFO L93 Difference]: Finished difference Result 1126 states and 1465 transitions. [2023-12-21 02:15:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:15:43,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-21 02:15:43,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:43,501 INFO L225 Difference]: With dead ends: 1126 [2023-12-21 02:15:43,501 INFO L226 Difference]: Without dead ends: 624 [2023-12-21 02:15:43,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:15:43,503 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 253 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:43,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 838 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-12-21 02:15:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 537. [2023-12-21 02:15:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 453 states have (on average 1.2406181015452538) internal successors, (562), 458 states have internal predecessors, (562), 68 states have call successors, (68), 15 states have call predecessors, (68), 15 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 02:15:43,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 698 transitions. [2023-12-21 02:15:43,567 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 698 transitions. Word has length 145 [2023-12-21 02:15:43,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:43,567 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 698 transitions. [2023-12-21 02:15:43,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 698 transitions. [2023-12-21 02:15:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:43,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:43,569 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:43,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 02:15:43,569 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:43,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:43,570 INFO L85 PathProgramCache]: Analyzing trace with hash -282214863, now seen corresponding path program 1 times [2023-12-21 02:15:43,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:43,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179146474] [2023-12-21 02:15:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:44,211 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:44,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:44,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179146474] [2023-12-21 02:15:44,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179146474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:44,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:44,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 02:15:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870636931] [2023-12-21 02:15:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:44,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 02:15:44,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:44,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 02:15:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:15:44,212 INFO L87 Difference]: Start difference. First operand 537 states and 698 transitions. Second operand has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:44,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:44,852 INFO L93 Difference]: Finished difference Result 1564 states and 2019 transitions. [2023-12-21 02:15:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 02:15:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 145 [2023-12-21 02:15:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:44,856 INFO L225 Difference]: With dead ends: 1564 [2023-12-21 02:15:44,856 INFO L226 Difference]: Without dead ends: 1048 [2023-12-21 02:15:44,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-12-21 02:15:44,858 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 242 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:44,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1936 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2023-12-21 02:15:44,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 692. [2023-12-21 02:15:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 591 states have (on average 1.2267343485617597) internal successors, (725), 598 states have internal predecessors, (725), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 02:15:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 885 transitions. [2023-12-21 02:15:44,919 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 885 transitions. Word has length 145 [2023-12-21 02:15:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:44,920 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 885 transitions. [2023-12-21 02:15:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 12 states have internal predecessors, (53), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 885 transitions. [2023-12-21 02:15:44,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 02:15:44,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:44,921 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:44,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 02:15:44,922 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:44,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:44,922 INFO L85 PathProgramCache]: Analyzing trace with hash -63360145, now seen corresponding path program 1 times [2023-12-21 02:15:44,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:44,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561178222] [2023-12-21 02:15:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:46,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:46,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561178222] [2023-12-21 02:15:46,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561178222] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:46,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:46,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-21 02:15:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775037473] [2023-12-21 02:15:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:46,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 02:15:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:46,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 02:15:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-12-21 02:15:46,004 INFO L87 Difference]: Start difference. First operand 692 states and 885 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:47,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:47,485 INFO L93 Difference]: Finished difference Result 1665 states and 2121 transitions. [2023-12-21 02:15:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 02:15:47,486 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 145 [2023-12-21 02:15:47,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:47,489 INFO L225 Difference]: With dead ends: 1665 [2023-12-21 02:15:47,489 INFO L226 Difference]: Without dead ends: 994 [2023-12-21 02:15:47,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2023-12-21 02:15:47,491 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 352 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:47,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1943 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 02:15:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-12-21 02:15:47,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 710. [2023-12-21 02:15:47,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 609 states have (on average 1.2200328407224958) internal successors, (743), 616 states have internal predecessors, (743), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 02:15:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 903 transitions. [2023-12-21 02:15:47,561 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 903 transitions. Word has length 145 [2023-12-21 02:15:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:47,561 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 903 transitions. [2023-12-21 02:15:47,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:47,562 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 903 transitions. [2023-12-21 02:15:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:47,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:47,563 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:47,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 02:15:47,563 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:47,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash -128073145, now seen corresponding path program 1 times [2023-12-21 02:15:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:47,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002895145] [2023-12-21 02:15:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:47,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:47,587 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:15:47,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114269320] [2023-12-21 02:15:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:47,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:15:47,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:15:47,591 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) [2023-12-21 02:15:47,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 02:15:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:47,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:15:47,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:15:48,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2023-12-21 02:15:48,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-12-21 02:15:48,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-21 02:15:48,073 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:48,073 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:15:48,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002895145] [2023-12-21 02:15:48,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:15:48,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114269320] [2023-12-21 02:15:48,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114269320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:48,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:48,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:15:48,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925370788] [2023-12-21 02:15:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:48,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:15:48,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:48,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:15:48,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:48,075 INFO L87 Difference]: Start difference. First operand 710 states and 903 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:48,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:48,446 INFO L93 Difference]: Finished difference Result 1497 states and 1905 transitions. [2023-12-21 02:15:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 02:15:48,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:48,450 INFO L225 Difference]: With dead ends: 1497 [2023-12-21 02:15:48,450 INFO L226 Difference]: Without dead ends: 788 [2023-12-21 02:15:48,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:15:48,453 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 146 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:48,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 823 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:15:48,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-12-21 02:15:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 703. [2023-12-21 02:15:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 602 states have (on average 1.2192691029900333) internal successors, (734), 609 states have internal predecessors, (734), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 02:15:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 894 transitions. [2023-12-21 02:15:48,549 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 894 transitions. Word has length 146 [2023-12-21 02:15:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:48,549 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 894 transitions. [2023-12-21 02:15:48,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:48,549 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 894 transitions. [2023-12-21 02:15:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:48,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:48,551 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:48,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 02:15:48,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-21 02:15:48,758 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:48,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash -679287660, now seen corresponding path program 1 times [2023-12-21 02:15:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:48,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407170534] [2023-12-21 02:15:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:48,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:48,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:15:48,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449459952] [2023-12-21 02:15:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:48,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:15:48,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:15:48,789 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) [2023-12-21 02:15:48,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 02:15:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:49,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 02:15:49,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:15:49,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-21 02:15:49,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-21 02:15:49,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-21 02:15:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-21 02:15:49,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:15:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:49,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:49,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407170534] [2023-12-21 02:15:49,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:15:49,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449459952] [2023-12-21 02:15:49,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449459952] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:15:49,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:15:49,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 16 [2023-12-21 02:15:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633447280] [2023-12-21 02:15:49,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:49,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:15:49,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:15:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 02:15:49,373 INFO L87 Difference]: Start difference. First operand 703 states and 894 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:49,747 INFO L93 Difference]: Finished difference Result 1518 states and 1932 transitions. [2023-12-21 02:15:49,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:15:49,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:49,751 INFO L225 Difference]: With dead ends: 1518 [2023-12-21 02:15:49,751 INFO L226 Difference]: Without dead ends: 816 [2023-12-21 02:15:49,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2023-12-21 02:15:49,753 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 164 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:49,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1357 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:15:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-21 02:15:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 639. [2023-12-21 02:15:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 538 states have (on average 1.2304832713754648) internal successors, (662), 545 states have internal predecessors, (662), 80 states have call successors, (80), 20 states have call predecessors, (80), 20 states have return successors, (80), 73 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-21 02:15:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 822 transitions. [2023-12-21 02:15:49,837 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 822 transitions. Word has length 146 [2023-12-21 02:15:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:49,837 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 822 transitions. [2023-12-21 02:15:49,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 822 transitions. [2023-12-21 02:15:49,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:49,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:49,840 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:49,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 02:15:50,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:15:50,050 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:50,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash -110038333, now seen corresponding path program 1 times [2023-12-21 02:15:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091455287] [2023-12-21 02:15:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:50,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:50,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:50,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091455287] [2023-12-21 02:15:50,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091455287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:50,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:50,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 02:15:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945127364] [2023-12-21 02:15:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:50,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 02:15:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 02:15:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-21 02:15:50,361 INFO L87 Difference]: Start difference. First operand 639 states and 822 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:50,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:50,683 INFO L93 Difference]: Finished difference Result 1605 states and 2055 transitions. [2023-12-21 02:15:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 02:15:50,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:50,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:50,687 INFO L225 Difference]: With dead ends: 1605 [2023-12-21 02:15:50,687 INFO L226 Difference]: Without dead ends: 967 [2023-12-21 02:15:50,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:15:50,690 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 293 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:50,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 890 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:15:50,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-21 02:15:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 843. [2023-12-21 02:15:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 701 states have (on average 1.2139800285306706) internal successors, (851), 712 states have internal predecessors, (851), 110 states have call successors, (110), 31 states have call predecessors, (110), 31 states have return successors, (110), 99 states have call predecessors, (110), 110 states have call successors, (110) [2023-12-21 02:15:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1071 transitions. [2023-12-21 02:15:50,790 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1071 transitions. Word has length 146 [2023-12-21 02:15:50,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:50,790 INFO L495 AbstractCegarLoop]: Abstraction has 843 states and 1071 transitions. [2023-12-21 02:15:50,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1071 transitions. [2023-12-21 02:15:50,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:50,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:50,792 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:50,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-21 02:15:50,792 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:50,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash -927686783, now seen corresponding path program 1 times [2023-12-21 02:15:50,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:50,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412993262] [2023-12-21 02:15:50,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:50,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:51,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:51,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412993262] [2023-12-21 02:15:51,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412993262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:51,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:51,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:15:51,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664813758] [2023-12-21 02:15:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:51,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:15:51,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:51,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:15:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:51,026 INFO L87 Difference]: Start difference. First operand 843 states and 1071 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:51,279 INFO L93 Difference]: Finished difference Result 1843 states and 2343 transitions. [2023-12-21 02:15:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:15:51,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:51,283 INFO L225 Difference]: With dead ends: 1843 [2023-12-21 02:15:51,283 INFO L226 Difference]: Without dead ends: 1001 [2023-12-21 02:15:51,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:51,286 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 219 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:51,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 617 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-12-21 02:15:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 853. [2023-12-21 02:15:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 699 states have (on average 1.2074391988555078) internal successors, (844), 710 states have internal predecessors, (844), 118 states have call successors, (118), 35 states have call predecessors, (118), 35 states have return successors, (118), 107 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-21 02:15:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1080 transitions. [2023-12-21 02:15:51,433 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1080 transitions. Word has length 146 [2023-12-21 02:15:51,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:51,433 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 1080 transitions. [2023-12-21 02:15:51,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1080 transitions. [2023-12-21 02:15:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:51,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:51,435 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:51,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 02:15:51,436 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:51,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1247174415, now seen corresponding path program 1 times [2023-12-21 02:15:51,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:51,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521622577] [2023-12-21 02:15:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:51,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:51,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521622577] [2023-12-21 02:15:51,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521622577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:51,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:51,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:15:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448628348] [2023-12-21 02:15:51,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:51,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:15:51,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:51,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:15:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:51,677 INFO L87 Difference]: Start difference. First operand 853 states and 1080 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:51,874 INFO L93 Difference]: Finished difference Result 1623 states and 2053 transitions. [2023-12-21 02:15:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:15:51,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:51,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:51,877 INFO L225 Difference]: With dead ends: 1623 [2023-12-21 02:15:51,877 INFO L226 Difference]: Without dead ends: 769 [2023-12-21 02:15:51,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:51,879 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 241 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:51,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 568 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-12-21 02:15:51,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 672. [2023-12-21 02:15:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 563 states have (on average 1.2184724689165187) internal successors, (686), 571 states have internal predecessors, (686), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 852 transitions. [2023-12-21 02:15:51,964 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 852 transitions. Word has length 146 [2023-12-21 02:15:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:51,965 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 852 transitions. [2023-12-21 02:15:51,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 852 transitions. [2023-12-21 02:15:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 02:15:51,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:51,966 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:51,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 02:15:51,967 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:51,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:51,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1053648175, now seen corresponding path program 1 times [2023-12-21 02:15:51,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:51,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759611089] [2023-12-21 02:15:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:51,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,232 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:52,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:52,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759611089] [2023-12-21 02:15:52,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759611089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:52,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:52,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:15:52,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194613714] [2023-12-21 02:15:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:52,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:15:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:15:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:52,234 INFO L87 Difference]: Start difference. First operand 672 states and 852 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:52,392 INFO L93 Difference]: Finished difference Result 1355 states and 1718 transitions. [2023-12-21 02:15:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:15:52,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2023-12-21 02:15:52,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:52,395 INFO L225 Difference]: With dead ends: 1355 [2023-12-21 02:15:52,395 INFO L226 Difference]: Without dead ends: 684 [2023-12-21 02:15:52,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:52,396 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 144 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:52,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 704 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-12-21 02:15:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 657. [2023-12-21 02:15:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 548 states have (on average 1.2153284671532847) internal successors, (666), 556 states have internal predecessors, (666), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 832 transitions. [2023-12-21 02:15:52,478 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 832 transitions. Word has length 146 [2023-12-21 02:15:52,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:52,478 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 832 transitions. [2023-12-21 02:15:52,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:52,478 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 832 transitions. [2023-12-21 02:15:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:52,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:52,480 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:52,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 02:15:52,480 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:52,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:52,480 INFO L85 PathProgramCache]: Analyzing trace with hash 505163439, now seen corresponding path program 1 times [2023-12-21 02:15:52,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:52,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970849344] [2023-12-21 02:15:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:52,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:52,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:52,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970849344] [2023-12-21 02:15:52,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970849344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:52,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:52,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:15:52,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132112177] [2023-12-21 02:15:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:15:52,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:52,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:15:52,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:52,980 INFO L87 Difference]: Start difference. First operand 657 states and 832 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:53,484 INFO L93 Difference]: Finished difference Result 1484 states and 1879 transitions. [2023-12-21 02:15:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:15:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:53,488 INFO L225 Difference]: With dead ends: 1484 [2023-12-21 02:15:53,488 INFO L226 Difference]: Without dead ends: 828 [2023-12-21 02:15:53,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-21 02:15:53,490 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 189 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:53,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 1336 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-12-21 02:15:53,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 689. [2023-12-21 02:15:53,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 580 states have (on average 1.2189655172413794) internal successors, (707), 588 states have internal predecessors, (707), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:53,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 873 transitions. [2023-12-21 02:15:53,567 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 873 transitions. Word has length 147 [2023-12-21 02:15:53,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:53,567 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 873 transitions. [2023-12-21 02:15:53,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 873 transitions. [2023-12-21 02:15:53,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:53,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:53,569 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:53,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 02:15:53,569 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:53,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash -505953811, now seen corresponding path program 1 times [2023-12-21 02:15:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:53,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177075622] [2023-12-21 02:15:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:53,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:53,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:53,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:53,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177075622] [2023-12-21 02:15:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177075622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:53,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:53,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:15:53,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377331856] [2023-12-21 02:15:53,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:15:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:15:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:53,835 INFO L87 Difference]: Start difference. First operand 689 states and 873 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:54,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:54,070 INFO L93 Difference]: Finished difference Result 1483 states and 1876 transitions. [2023-12-21 02:15:54,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:15:54,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:54,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:54,074 INFO L225 Difference]: With dead ends: 1483 [2023-12-21 02:15:54,074 INFO L226 Difference]: Without dead ends: 795 [2023-12-21 02:15:54,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:54,075 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 99 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:54,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 751 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:54,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-21 02:15:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 681. [2023-12-21 02:15:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 572 states have (on average 1.2132867132867133) internal successors, (694), 580 states have internal predecessors, (694), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:54,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 860 transitions. [2023-12-21 02:15:54,159 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 860 transitions. Word has length 147 [2023-12-21 02:15:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:54,159 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 860 transitions. [2023-12-21 02:15:54,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:54,159 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 860 transitions. [2023-12-21 02:15:54,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:54,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:54,161 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:54,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 02:15:54,161 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:54,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:54,161 INFO L85 PathProgramCache]: Analyzing trace with hash 862675825, now seen corresponding path program 1 times [2023-12-21 02:15:54,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:54,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037339143] [2023-12-21 02:15:54,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:54,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037339143] [2023-12-21 02:15:54,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037339143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:54,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:54,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:15:54,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872335011] [2023-12-21 02:15:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:54,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:15:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:15:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:15:54,495 INFO L87 Difference]: Start difference. First operand 681 states and 860 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:54,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:54,756 INFO L93 Difference]: Finished difference Result 1428 states and 1800 transitions. [2023-12-21 02:15:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:15:54,757 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:54,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:54,759 INFO L225 Difference]: With dead ends: 1428 [2023-12-21 02:15:54,759 INFO L226 Difference]: Without dead ends: 748 [2023-12-21 02:15:54,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:15:54,761 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 89 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:54,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 630 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-21 02:15:54,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 681. [2023-12-21 02:15:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 572 states have (on average 1.2097902097902098) internal successors, (692), 580 states have internal predecessors, (692), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 858 transitions. [2023-12-21 02:15:54,859 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 858 transitions. Word has length 147 [2023-12-21 02:15:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:54,859 INFO L495 AbstractCegarLoop]: Abstraction has 681 states and 858 transitions. [2023-12-21 02:15:54,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 858 transitions. [2023-12-21 02:15:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:54,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:54,861 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:54,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-21 02:15:54,861 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:54,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:54,862 INFO L85 PathProgramCache]: Analyzing trace with hash -148441425, now seen corresponding path program 1 times [2023-12-21 02:15:54,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:54,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814342004] [2023-12-21 02:15:54,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:54,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:55,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:55,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814342004] [2023-12-21 02:15:55,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814342004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:55,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:55,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 02:15:55,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962039924] [2023-12-21 02:15:55,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:55,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 02:15:55,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:55,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 02:15:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 02:15:55,205 INFO L87 Difference]: Start difference. First operand 681 states and 858 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:55,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:55,477 INFO L93 Difference]: Finished difference Result 1498 states and 1890 transitions. [2023-12-21 02:15:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 02:15:55,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:55,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:55,481 INFO L225 Difference]: With dead ends: 1498 [2023-12-21 02:15:55,481 INFO L226 Difference]: Without dead ends: 818 [2023-12-21 02:15:55,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:15:55,483 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 217 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:55,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 1921 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:15:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2023-12-21 02:15:55,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 670. [2023-12-21 02:15:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 561 states have (on average 1.2067736185383244) internal successors, (677), 569 states have internal predecessors, (677), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 843 transitions. [2023-12-21 02:15:55,569 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 843 transitions. Word has length 147 [2023-12-21 02:15:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:55,570 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 843 transitions. [2023-12-21 02:15:55,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:55,570 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 843 transitions. [2023-12-21 02:15:55,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:55,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:55,571 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:55,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 02:15:55,572 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:55,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:55,572 INFO L85 PathProgramCache]: Analyzing trace with hash -976809857, now seen corresponding path program 1 times [2023-12-21 02:15:55,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:55,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996810045] [2023-12-21 02:15:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:56,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:56,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996810045] [2023-12-21 02:15:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996810045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:56,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:56,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:15:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498883658] [2023-12-21 02:15:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:56,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:15:56,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:15:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:56,636 INFO L87 Difference]: Start difference. First operand 670 states and 843 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:57,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:57,224 INFO L93 Difference]: Finished difference Result 1134 states and 1417 transitions. [2023-12-21 02:15:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 02:15:57,225 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-21 02:15:57,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:57,228 INFO L225 Difference]: With dead ends: 1134 [2023-12-21 02:15:57,228 INFO L226 Difference]: Without dead ends: 1132 [2023-12-21 02:15:57,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-12-21 02:15:57,229 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 412 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:57,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 712 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:57,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2023-12-21 02:15:57,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 922. [2023-12-21 02:15:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 813 states have (on average 1.2115621156211562) internal successors, (985), 821 states have internal predecessors, (985), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2023-12-21 02:15:57,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1151 transitions. [2023-12-21 02:15:57,315 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1151 transitions. Word has length 147 [2023-12-21 02:15:57,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:57,315 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1151 transitions. [2023-12-21 02:15:57,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 11 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:15:57,315 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1151 transitions. [2023-12-21 02:15:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:57,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:57,317 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:57,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 02:15:57,317 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:57,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:57,318 INFO L85 PathProgramCache]: Analyzing trace with hash -976750275, now seen corresponding path program 1 times [2023-12-21 02:15:57,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:57,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288872039] [2023-12-21 02:15:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:57,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:57,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288872039] [2023-12-21 02:15:57,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288872039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:57,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:57,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:57,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521273882] [2023-12-21 02:15:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:57,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:57,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:57,501 INFO L87 Difference]: Start difference. First operand 922 states and 1151 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:57,634 INFO L93 Difference]: Finished difference Result 1907 states and 2377 transitions. [2023-12-21 02:15:57,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:57,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:57,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:57,638 INFO L225 Difference]: With dead ends: 1907 [2023-12-21 02:15:57,638 INFO L226 Difference]: Without dead ends: 986 [2023-12-21 02:15:57,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:57,640 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 93 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:57,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 621 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:57,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-12-21 02:15:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 976. [2023-12-21 02:15:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 845 states have (on average 1.183431952662722) internal successors, (1000), 854 states have internal predecessors, (1000), 100 states have call successors, (100), 30 states have call predecessors, (100), 30 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:15:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1200 transitions. [2023-12-21 02:15:57,748 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1200 transitions. Word has length 147 [2023-12-21 02:15:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:57,749 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1200 transitions. [2023-12-21 02:15:57,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1200 transitions. [2023-12-21 02:15:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:57,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:57,750 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:57,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-21 02:15:57,751 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:57,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash -919491973, now seen corresponding path program 1 times [2023-12-21 02:15:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809044037] [2023-12-21 02:15:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:57,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:57,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809044037] [2023-12-21 02:15:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809044037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:57,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:57,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:15:57,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127817139] [2023-12-21 02:15:57,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:57,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:15:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:57,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:15:57,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:15:57,906 INFO L87 Difference]: Start difference. First operand 976 states and 1200 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:58,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:58,036 INFO L93 Difference]: Finished difference Result 2003 states and 2455 transitions. [2023-12-21 02:15:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:15:58,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2023-12-21 02:15:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:58,040 INFO L225 Difference]: With dead ends: 2003 [2023-12-21 02:15:58,040 INFO L226 Difference]: Without dead ends: 1078 [2023-12-21 02:15:58,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:15:58,042 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 16 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:58,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 507 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:15:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-12-21 02:15:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1027. [2023-12-21 02:15:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 896 states have (on average 1.1729910714285714) internal successors, (1051), 905 states have internal predecessors, (1051), 100 states have call successors, (100), 30 states have call predecessors, (100), 30 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-21 02:15:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1251 transitions. [2023-12-21 02:15:58,155 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1251 transitions. Word has length 147 [2023-12-21 02:15:58,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:58,155 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1251 transitions. [2023-12-21 02:15:58,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:15:58,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1251 transitions. [2023-12-21 02:15:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:58,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:58,156 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:58,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 02:15:58,157 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:58,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:58,157 INFO L85 PathProgramCache]: Analyzing trace with hash -836261247, now seen corresponding path program 1 times [2023-12-21 02:15:58,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:58,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880243960] [2023-12-21 02:15:58,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:58,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:15:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:15:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:15:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:15:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:15:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:15:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:15:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:15:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:15:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:15:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:15:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:15:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:15:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:15:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:15:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:15:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:15:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:15:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:15:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:15:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:15:58,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:15:58,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880243960] [2023-12-21 02:15:58,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880243960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:15:58,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:15:58,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 02:15:58,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269256903] [2023-12-21 02:15:58,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:15:58,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 02:15:58,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:15:58,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 02:15:58,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:15:58,928 INFO L87 Difference]: Start difference. First operand 1027 states and 1251 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:15:59,496 INFO L93 Difference]: Finished difference Result 2590 states and 3136 transitions. [2023-12-21 02:15:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 02:15:59,497 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 147 [2023-12-21 02:15:59,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:15:59,506 INFO L225 Difference]: With dead ends: 2590 [2023-12-21 02:15:59,506 INFO L226 Difference]: Without dead ends: 1614 [2023-12-21 02:15:59,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-12-21 02:15:59,509 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 377 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 02:15:59,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 709 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 02:15:59,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2023-12-21 02:15:59,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1154. [2023-12-21 02:15:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1030 states have (on average 1.162135922330097) internal successors, (1197), 1038 states have internal predecessors, (1197), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:15:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1385 transitions. [2023-12-21 02:15:59,612 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1385 transitions. Word has length 147 [2023-12-21 02:15:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:15:59,612 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1385 transitions. [2023-12-21 02:15:59,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-12-21 02:15:59,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1385 transitions. [2023-12-21 02:15:59,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 02:15:59,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:15:59,614 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:15:59,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 02:15:59,615 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:15:59,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:15:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1229288257, now seen corresponding path program 1 times [2023-12-21 02:15:59,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:15:59,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926878166] [2023-12-21 02:15:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:15:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:15:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 02:16:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 02:16:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 02:16:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 02:16:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 02:16:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 02:16:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 02:16:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 02:16:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 02:16:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 02:16:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 02:16:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 02:16:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 02:16:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 02:16:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 02:16:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 02:16:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 02:16:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 02:16:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 02:16:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:00,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926878166] [2023-12-21 02:16:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926878166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:00,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 02:16:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625633101] [2023-12-21 02:16:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:00,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 02:16:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:00,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 02:16:00,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:16:00,204 INFO L87 Difference]: Start difference. First operand 1154 states and 1385 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:16:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:00,497 INFO L93 Difference]: Finished difference Result 1172 states and 1410 transitions. [2023-12-21 02:16:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:16:00,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-21 02:16:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:00,501 INFO L225 Difference]: With dead ends: 1172 [2023-12-21 02:16:00,501 INFO L226 Difference]: Without dead ends: 1170 [2023-12-21 02:16:00,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-12-21 02:16:00,502 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 176 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:00,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 500 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:16:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-12-21 02:16:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 908. [2023-12-21 02:16:00,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 784 states have (on average 1.1696428571428572) internal successors, (917), 792 states have internal predecessors, (917), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:16:00,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1105 transitions. [2023-12-21 02:16:00,635 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1105 transitions. Word has length 147 [2023-12-21 02:16:00,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:00,635 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1105 transitions. [2023-12-21 02:16:00,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-21 02:16:00,636 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1105 transitions. [2023-12-21 02:16:00,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:16:00,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:00,637 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:00,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 02:16:00,637 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:00,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:00,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1708444810, now seen corresponding path program 1 times [2023-12-21 02:16:00,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:00,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760765953] [2023-12-21 02:16:00,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:00,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:00,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:00,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842957027] [2023-12-21 02:16:00,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:00,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:00,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:00,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:00,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 02:16:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:00,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 02:16:00,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:00,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-21 02:16:00,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-21 02:16:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:01,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:16:01,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:01,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760765953] [2023-12-21 02:16:01,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:01,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842957027] [2023-12-21 02:16:01,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842957027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:01,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:01,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:16:01,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813571846] [2023-12-21 02:16:01,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:01,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:16:01,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:01,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:16:01,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:16:01,005 INFO L87 Difference]: Start difference. First operand 908 states and 1105 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:01,242 INFO L93 Difference]: Finished difference Result 2173 states and 2611 transitions. [2023-12-21 02:16:01,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 02:16:01,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:16:01,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:01,245 INFO L225 Difference]: With dead ends: 2173 [2023-12-21 02:16:01,245 INFO L226 Difference]: Without dead ends: 1316 [2023-12-21 02:16:01,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:16:01,247 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 79 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:01,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 621 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:16:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-12-21 02:16:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1074. [2023-12-21 02:16:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 950 states have (on average 1.1505263157894736) internal successors, (1093), 958 states have internal predecessors, (1093), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:16:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1281 transitions. [2023-12-21 02:16:01,364 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1281 transitions. Word has length 149 [2023-12-21 02:16:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:01,365 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1281 transitions. [2023-12-21 02:16:01,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1281 transitions. [2023-12-21 02:16:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:16:01,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:01,367 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:01,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 02:16:01,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:01,574 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:01,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1450279372, now seen corresponding path program 1 times [2023-12-21 02:16:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:01,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285987298] [2023-12-21 02:16:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:01,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:01,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555614105] [2023-12-21 02:16:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:01,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:01,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:01,597 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:01,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 02:16:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:01,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 02:16:01,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:01,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-21 02:16:01,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-12-21 02:16:01,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2023-12-21 02:16:01,913 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:01,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:16:01,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:01,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285987298] [2023-12-21 02:16:01,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:01,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555614105] [2023-12-21 02:16:01,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555614105] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:01,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:01,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:16:01,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676725053] [2023-12-21 02:16:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:16:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:01,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:16:01,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:16:01,915 INFO L87 Difference]: Start difference. First operand 1074 states and 1281 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:02,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:02,166 INFO L93 Difference]: Finished difference Result 2315 states and 2755 transitions. [2023-12-21 02:16:02,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 02:16:02,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:16:02,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:02,169 INFO L225 Difference]: With dead ends: 2315 [2023-12-21 02:16:02,169 INFO L226 Difference]: Without dead ends: 1292 [2023-12-21 02:16:02,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:16:02,170 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 62 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:02,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 483 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:16:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2023-12-21 02:16:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1074. [2023-12-21 02:16:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 950 states have (on average 1.1336842105263158) internal successors, (1077), 958 states have internal predecessors, (1077), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-21 02:16:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1265 transitions. [2023-12-21 02:16:02,294 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1265 transitions. Word has length 149 [2023-12-21 02:16:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:02,294 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1265 transitions. [2023-12-21 02:16:02,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1265 transitions. [2023-12-21 02:16:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-21 02:16:02,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:02,296 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:02,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 02:16:02,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:02,504 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:02,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash 472948662, now seen corresponding path program 1 times [2023-12-21 02:16:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350197788] [2023-12-21 02:16:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:02,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:02,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712893858] [2023-12-21 02:16:02,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:02,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:02,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:02,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:02,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 02:16:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:02,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 02:16:02,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:02,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-21 02:16:02,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2023-12-21 02:16:02,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2023-12-21 02:16:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:02,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:16:02,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350197788] [2023-12-21 02:16:02,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:02,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712893858] [2023-12-21 02:16:02,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712893858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:02,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:02,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 02:16:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867327136] [2023-12-21 02:16:02,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:02,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:16:02,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:16:02,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 02:16:02,863 INFO L87 Difference]: Start difference. First operand 1074 states and 1265 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:03,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:03,207 INFO L93 Difference]: Finished difference Result 2487 states and 2882 transitions. [2023-12-21 02:16:03,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:16:03,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2023-12-21 02:16:03,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:03,211 INFO L225 Difference]: With dead ends: 2487 [2023-12-21 02:16:03,211 INFO L226 Difference]: Without dead ends: 1464 [2023-12-21 02:16:03,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-21 02:16:03,213 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:03,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 820 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 02:16:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-21 02:16:03,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1357. [2023-12-21 02:16:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1203 states have (on average 1.1072319201995013) internal successors, (1332), 1216 states have internal predecessors, (1332), 114 states have call successors, (114), 39 states have call predecessors, (114), 39 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-21 02:16:03,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1560 transitions. [2023-12-21 02:16:03,403 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1560 transitions. Word has length 149 [2023-12-21 02:16:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:03,403 INFO L495 AbstractCegarLoop]: Abstraction has 1357 states and 1560 transitions. [2023-12-21 02:16:03,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1560 transitions. [2023-12-21 02:16:03,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:16:03,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:03,405 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:03,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 02:16:03,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-12-21 02:16:03,614 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:03,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:03,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2010183541, now seen corresponding path program 1 times [2023-12-21 02:16:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615749151] [2023-12-21 02:16:03,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:03,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:03,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546640311] [2023-12-21 02:16:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:03,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:03,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:03,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 02:16:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:04,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 02:16:04,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:05,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 43 [2023-12-21 02:16:05,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 34 [2023-12-21 02:16:05,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-21 02:16:05,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-12-21 02:16:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:06,096 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:16:06,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:06,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615749151] [2023-12-21 02:16:06,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:06,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546640311] [2023-12-21 02:16:06,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546640311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:06,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:06,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 02:16:06,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932447921] [2023-12-21 02:16:06,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:06,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 02:16:06,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:06,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 02:16:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 02:16:06,097 INFO L87 Difference]: Start difference. First operand 1357 states and 1560 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:11,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:16:14,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:16:19,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:16:26,993 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 02:16:29,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-21 02:16:29,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:29,955 INFO L93 Difference]: Finished difference Result 3289 states and 3732 transitions. [2023-12-21 02:16:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 02:16:29,956 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:16:29,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:29,959 INFO L225 Difference]: With dead ends: 3289 [2023-12-21 02:16:29,959 INFO L226 Difference]: Without dead ends: 1983 [2023-12-21 02:16:29,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:16:29,961 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 57 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:29,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 515 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 2 Unknown, 0 Unchecked, 17.2s Time] [2023-12-21 02:16:29,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2023-12-21 02:16:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1733. [2023-12-21 02:16:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1578 states have (on average 1.0956907477820026) internal successors, (1729), 1591 states have internal predecessors, (1729), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-21 02:16:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 1957 transitions. [2023-12-21 02:16:30,155 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 1957 transitions. Word has length 150 [2023-12-21 02:16:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:30,155 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 1957 transitions. [2023-12-21 02:16:30,156 INFO L496 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, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 1957 transitions. [2023-12-21 02:16:30,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:16:30,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:30,158 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:30,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 02:16:30,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:30,367 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:30,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:30,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1891756745, now seen corresponding path program 1 times [2023-12-21 02:16:30,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:30,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356939730] [2023-12-21 02:16:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:30,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245845583] [2023-12-21 02:16:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:30,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:30,385 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:30,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 02:16:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:30,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 02:16:30,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:30,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 02:16:30,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356939730] [2023-12-21 02:16:30,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245845583] [2023-12-21 02:16:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245845583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 02:16:30,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 02:16:30,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 02:16:30,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089920280] [2023-12-21 02:16:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:30,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 02:16:30,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 02:16:30,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 02:16:30,671 INFO L87 Difference]: Start difference. First operand 1733 states and 1957 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:30,936 INFO L93 Difference]: Finished difference Result 3486 states and 3925 transitions. [2023-12-21 02:16:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 02:16:30,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:16:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:30,939 INFO L225 Difference]: With dead ends: 3486 [2023-12-21 02:16:30,939 INFO L226 Difference]: Without dead ends: 1808 [2023-12-21 02:16:30,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-21 02:16:30,942 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 23 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:30,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 634 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 02:16:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2023-12-21 02:16:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1706. [2023-12-21 02:16:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1551 states have (on average 1.0909090909090908) internal successors, (1692), 1564 states have internal predecessors, (1692), 114 states have call successors, (114), 40 states have call predecessors, (114), 40 states have return successors, (114), 101 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-21 02:16:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 1920 transitions. [2023-12-21 02:16:31,125 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 1920 transitions. Word has length 150 [2023-12-21 02:16:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 1920 transitions. [2023-12-21 02:16:31,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 1920 transitions. [2023-12-21 02:16:31,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 02:16:31,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 02:16:31,128 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 02:16:31,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 02:16:31,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:31,341 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 02:16:31,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 02:16:31,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2072223155, now seen corresponding path program 1 times [2023-12-21 02:16:31,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 02:16:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162011129] [2023-12-21 02:16:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 02:16:31,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 02:16:31,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1213315281] [2023-12-21 02:16:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 02:16:31,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 02:16:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 02:16:31,362 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 02:16:31,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 02:16:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 02:16:31,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 02:16:31,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 02:16:31,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-21 02:16:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-12-21 02:16:31,714 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 02:16:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-21 02:16:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 02:16:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162011129] [2023-12-21 02:16:31,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 02:16:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213315281] [2023-12-21 02:16:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213315281] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 02:16:31,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 02:16:31,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2023-12-21 02:16:31,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763427411] [2023-12-21 02:16:31,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 02:16:31,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 02:16:31,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 02:16:31,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 02:16:31,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 02:16:31,803 INFO L87 Difference]: Start difference. First operand 1706 states and 1920 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 02:16:32,355 INFO L93 Difference]: Finished difference Result 4697 states and 5273 transitions. [2023-12-21 02:16:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 02:16:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2023-12-21 02:16:32,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 02:16:32,356 INFO L225 Difference]: With dead ends: 4697 [2023-12-21 02:16:32,356 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 02:16:32,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2023-12-21 02:16:32,362 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 138 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 02:16:32,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1330 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 02:16:32,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 02:16:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 02:16:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 02:16:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 02:16:32,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2023-12-21 02:16:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 02:16:32,363 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 02:16:32,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-21 02:16:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 02:16:32,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 02:16:32,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 02:16:32,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 02:16:32,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-21 02:16:32,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-21 02:29:20,702 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-54-10-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 term,while PolyPacSimplificationTermWalker was simplifying 9 xjuncts wrt. a ∧-105-10-10-13-10-13-10-13-10-13-9-12-8-12-6-12-6-12-6-12-6-12-6-12-6-12-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 context. [2023-12-21 02:29:20,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 02:29:20,711 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 02:29:20,742 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-21 02:29:20,746 INFO L158 Benchmark]: Toolchain (without parser) took 844660.82ms. Allocated memory was 179.3MB in the beginning and 836.8MB in the end (delta: 657.5MB). Free memory was 131.8MB in the beginning and 636.5MB in the end (delta: -504.8MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,746 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 02:29:20,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.76ms. Allocated memory is still 179.3MB. Free memory was 131.8MB in the beginning and 117.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.67ms. Allocated memory is still 179.3MB. Free memory was 117.0MB in the beginning and 112.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,747 INFO L158 Benchmark]: Boogie Preprocessor took 70.46ms. Allocated memory is still 179.3MB. Free memory was 112.4MB in the beginning and 107.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,747 INFO L158 Benchmark]: RCFGBuilder took 819.36ms. Allocated memory is still 179.3MB. Free memory was 107.1MB in the beginning and 144.6MB in the end (delta: -37.5MB). Peak memory consumption was 44.7MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,747 INFO L158 Benchmark]: TraceAbstraction took 843382.64ms. Allocated memory was 179.3MB in the beginning and 836.8MB in the end (delta: 657.5MB). Free memory was 143.6MB in the beginning and 636.5MB in the end (delta: -492.9MB). Peak memory consumption was 165.0MB. Max. memory is 8.0GB. [2023-12-21 02:29:20,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 304.76ms. Allocated memory is still 179.3MB. Free memory was 131.8MB in the beginning and 117.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.67ms. Allocated memory is still 179.3MB. Free memory was 117.0MB in the beginning and 112.4MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 70.46ms. Allocated memory is still 179.3MB. Free memory was 112.4MB in the beginning and 107.1MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 819.36ms. Allocated memory is still 179.3MB. Free memory was 107.1MB in the beginning and 144.6MB in the end (delta: -37.5MB). Peak memory consumption was 44.7MB. Max. memory is 8.0GB. * TraceAbstraction took 843382.64ms. Allocated memory was 179.3MB in the beginning and 836.8MB in the end (delta: 657.5MB). Free memory was 143.6MB in the beginning and 636.5MB in the end (delta: -492.9MB). Peak memory consumption was 165.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-54-10-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-75-11-5-13-4-13-6-13-6-13-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-12-6-9-5-9-5-9-5-9-5-9-5-9-5-9-3-9-2-9-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown