/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:59:36,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:59:36,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:59:36,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:59:36,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:59:36,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:59:36,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:59:36,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:59:36,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:59:36,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:59:36,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:59:36,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:59:36,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:59:36,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:59:36,465 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:59:36,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:59:36,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:59:36,466 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:59:36,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:59:36,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:59:36,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:59:36,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:59:36,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:59:36,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:59:36,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:59:36,472 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:59:36,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:59:36,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:59:36,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:59:36,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:59:36,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:59:36,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:59:36,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:59:36,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:59:36,475 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:59:36,475 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:59:36,475 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:59:36,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:59:36,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:59:36,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:59:36,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:59:36,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:59:36,701 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:59:36,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-20 03:59:37,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:59:37,890 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:59:37,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-20 03:59:37,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd5b3a23/e26d7f0b106b42deafd37ab54cc5a39a/FLAGe896dfc81 [2023-12-20 03:59:37,918 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dd5b3a23/e26d7f0b106b42deafd37ab54cc5a39a [2023-12-20 03:59:37,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:59:37,922 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:59:37,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:59:37,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:59:37,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:59:37,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:59:37" (1/1) ... [2023-12-20 03:59:37,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@83e967c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:37, skipping insertion in model container [2023-12-20 03:59:37,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:59:37" (1/1) ... [2023-12-20 03:59:37,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:59:38,214 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_queue-1.i[34744,34757] [2023-12-20 03:59:38,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:59:38,334 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:59:38,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_queue-1.i[34744,34757] [2023-12-20 03:59:38,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:59:38,461 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:59:38,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38 WrapperNode [2023-12-20 03:59:38,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:59:38,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:59:38,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:59:38,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:59:38,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,531 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1166 [2023-12-20 03:59:38,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:59:38,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:59:38,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:59:38,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:59:38,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,597 INFO L175 MemorySlicer]: Split 305 memory accesses to 19 slices as follows [68, 3, 8, 2, 6, 8, 3, 8, 20, 12, 43, 8, 8, 0, 3, 7, 41, 50, 7]. 22 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [0, 0, 2, 2, 2, 3, 0, 3, 6, 6, 0, 2, 2, 0, 0, 0, 0, 0, 0]. The 94 writes are split as follows [34, 1, 3, 0, 2, 2, 1, 2, 8, 3, 22, 4, 4, 0, 1, 1, 1, 4, 1]. [2023-12-20 03:59:38,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:59:38,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:59:38,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:59:38,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:59:38,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (1/1) ... [2023-12-20 03:59:38,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:59:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:38,680 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) [2023-12-20 03:59:38,700 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 [2023-12-20 03:59:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 03:59:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 03:59:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 03:59:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2023-12-20 03:59:38,721 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2023-12-20 03:59:38,721 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-12-20 03:59:38,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-12-20 03:59:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-20 03:59:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-20 03:59:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-20 03:59:38,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-20 03:59:38,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-20 03:59:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-20 03:59:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-20 03:59:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-20 03:59:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-12-20 03:59:38,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-20 03:59:38,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-12-20 03:59:38,726 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-12-20 03:59:38,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-20 03:59:38,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-20 03:59:38,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 03:59:38,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 03:59:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 03:59:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 03:59:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-20 03:59:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-20 03:59:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-20 03:59:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-20 03:59:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-20 03:59:38,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-20 03:59:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-20 03:59:38,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:59:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-20 03:59:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-20 03:59:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-20 03:59:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-20 03:59:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:59:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:59:38,966 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:59:38,968 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:59:39,064 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,064 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,064 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-12-20 03:59:39,064 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2023-12-20 03:59:39,463 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2023-12-20 03:59:39,463 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-20 03:59:39,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2023-12-20 03:59:39,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:59:39,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,464 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-20 03:59:39,465 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,469 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,469 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);dequeue_#res#1 := 0; [2023-12-20 03:59:39,471 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,473 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-20 03:59:39,473 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);enqueue_#res#1 := 0; [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t1_#res#1.base, t1_#res#1.offset := 0, 0; [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2023-12-20 03:59:39,476 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-12-20 03:59:43,870 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:59:43,922 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:59:43,922 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-20 03:59:43,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:59:43 BoogieIcfgContainer [2023-12-20 03:59:43,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:59:43,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:59:43,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:59:43,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:59:43,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:59:37" (1/3) ... [2023-12-20 03:59:43,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f537a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:59:43, skipping insertion in model container [2023-12-20 03:59:43,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:59:38" (2/3) ... [2023-12-20 03:59:43,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f537a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:59:43, skipping insertion in model container [2023-12-20 03:59:43,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:59:43" (3/3) ... [2023-12-20 03:59:43,929 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2023-12-20 03:59:43,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:59:43,942 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 03:59:43,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:59:44,002 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;@71955561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:59:44,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 03:59:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-20 03:59:44,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-20 03:59:44,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:44,047 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:44,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:44,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1278456058, now seen corresponding path program 1 times [2023-12-20 03:59:44,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:44,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509770823] [2023-12-20 03:59:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:44,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-20 03:59:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-20 03:59:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 03:59:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-20 03:59:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-20 03:59:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-20 03:59:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 03:59:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 03:59:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 03:59:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-20 03:59:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:59:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:59:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:59:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:59:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:59:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:59:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 03:59:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 03:59:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 03:59:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 03:59:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 03:59:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 03:59:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 03:59:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 03:59:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 03:59:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 03:59:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-20 03:59:45,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:45,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509770823] [2023-12-20 03:59:45,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509770823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:45,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:45,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:59:45,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390432339] [2023-12-20 03:59:45,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:45,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:45,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:45,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:45,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:45,217 INFO L87 Difference]: Start difference. First operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:45,447 INFO L93 Difference]: Finished difference Result 668 states and 1233 transitions. [2023-12-20 03:59:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:45,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 325 [2023-12-20 03:59:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:45,463 INFO L225 Difference]: With dead ends: 668 [2023-12-20 03:59:45,463 INFO L226 Difference]: Without dead ends: 335 [2023-12-20 03:59:45,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:45,474 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 9 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:45,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1043 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:59:45,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-20 03:59:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 329. [2023-12-20 03:59:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 188 states have (on average 1.4574468085106382) internal successors, (274), 190 states have internal predecessors, (274), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-20 03:59:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 535 transitions. [2023-12-20 03:59:45,561 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 535 transitions. Word has length 325 [2023-12-20 03:59:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:45,562 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 535 transitions. [2023-12-20 03:59:45,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 535 transitions. [2023-12-20 03:59:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-20 03:59:45,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:45,570 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:45,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:59:45,573 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:45,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:45,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1901390565, now seen corresponding path program 1 times [2023-12-20 03:59:45,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:45,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859090914] [2023-12-20 03:59:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-20 03:59:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 03:59:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-20 03:59:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-20 03:59:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 03:59:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 03:59:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 03:59:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 03:59:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 03:59:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-20 03:59:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-20 03:59:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-20 03:59:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 03:59:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 03:59:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 03:59:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 03:59:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 03:59:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 03:59:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 03:59:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 03:59:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 03:59:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 03:59:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 03:59:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 03:59:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 03:59:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 03:59:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 03:59:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 03:59:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 03:59:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 03:59:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 03:59:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 03:59:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 03:59:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 03:59:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 03:59:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 03:59:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 03:59:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 03:59:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 03:59:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 03:59:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 03:59:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 03:59:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 03:59:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 03:59:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 03:59:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 03:59:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 03:59:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 03:59:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 03:59:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-20 03:59:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-12-20 03:59:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-20 03:59:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-20 03:59:46,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:46,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859090914] [2023-12-20 03:59:46,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859090914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:46,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:59:46,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:59:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580491794] [2023-12-20 03:59:46,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:46,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:46,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:46,226 INFO L87 Difference]: Start difference. First operand 329 states and 535 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:46,326 INFO L93 Difference]: Finished difference Result 659 states and 1074 transitions. [2023-12-20 03:59:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:46,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 332 [2023-12-20 03:59:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:46,334 INFO L225 Difference]: With dead ends: 659 [2023-12-20 03:59:46,335 INFO L226 Difference]: Without dead ends: 332 [2023-12-20 03:59:46,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:59:46,337 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:46,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1040 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:59:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-20 03:59:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-20 03:59:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 191 states have (on average 1.450261780104712) internal successors, (277), 193 states have internal predecessors, (277), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-20 03:59:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 538 transitions. [2023-12-20 03:59:46,365 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 538 transitions. Word has length 332 [2023-12-20 03:59:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:46,366 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 538 transitions. [2023-12-20 03:59:46,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:46,366 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 538 transitions. [2023-12-20 03:59:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-12-20 03:59:46,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:46,371 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:46,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:59:46,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:46,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:46,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1982787695, now seen corresponding path program 1 times [2023-12-20 03:59:46,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:46,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945066770] [2023-12-20 03:59:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:46,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 03:59:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-20 03:59:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 03:59:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-20 03:59:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 03:59:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-20 03:59:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-20 03:59:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-20 03:59:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-20 03:59:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 03:59:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 03:59:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-20 03:59:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-20 03:59:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-20 03:59:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-20 03:59:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-20 03:59:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-20 03:59:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 03:59:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 03:59:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 03:59:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 03:59:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 03:59:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 03:59:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 03:59:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 03:59:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 03:59:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 03:59:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 03:59:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 03:59:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 03:59:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 03:59:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 03:59:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 03:59:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 03:59:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 03:59:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 03:59:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 03:59:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 03:59:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 03:59:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:46,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 03:59:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 03:59:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 03:59:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 03:59:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 03:59:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 03:59:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 03:59:47,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 03:59:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 03:59:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 03:59:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 03:59:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 03:59:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 03:59:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-20 03:59:47,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:47,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945066770] [2023-12-20 03:59:47,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945066770] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:47,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635143945] [2023-12-20 03:59:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:47,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:47,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:47,043 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) [2023-12-20 03:59:47,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:59:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:47,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 03:59:47,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-20 03:59:47,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-20 03:59:48,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635143945] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:48,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:48,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-12-20 03:59:48,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202857722] [2023-12-20 03:59:48,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:48,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:59:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:59:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:59:48,038 INFO L87 Difference]: Start difference. First operand 332 states and 538 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2023-12-20 03:59:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:48,286 INFO L93 Difference]: Finished difference Result 669 states and 1088 transitions. [2023-12-20 03:59:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 03:59:48,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) Word has length 335 [2023-12-20 03:59:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:48,289 INFO L225 Difference]: With dead ends: 669 [2023-12-20 03:59:48,289 INFO L226 Difference]: Without dead ends: 339 [2023-12-20 03:59:48,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:59:48,292 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 1 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:48,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3107 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:59:48,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-20 03:59:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-20 03:59:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 198 states have (on average 1.4343434343434343) internal successors, (284), 200 states have internal predecessors, (284), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2023-12-20 03:59:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 545 transitions. [2023-12-20 03:59:48,309 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 545 transitions. Word has length 335 [2023-12-20 03:59:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:48,309 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 545 transitions. [2023-12-20 03:59:48,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2023-12-20 03:59:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 545 transitions. [2023-12-20 03:59:48,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-12-20 03:59:48,313 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:48,313 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:48,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:48,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:48,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:48,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2093305563, now seen corresponding path program 2 times [2023-12-20 03:59:48,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:48,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939163922] [2023-12-20 03:59:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:48,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-20 03:59:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 03:59:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-20 03:59:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-20 03:59:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-20 03:59:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 03:59:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 03:59:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 03:59:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 03:59:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-20 03:59:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-20 03:59:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 03:59:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-20 03:59:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 03:59:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 03:59:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 03:59:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-20 03:59:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 03:59:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 03:59:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 03:59:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 03:59:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 03:59:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 03:59:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 03:59:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 03:59:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 03:59:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 03:59:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 03:59:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 03:59:49,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 03:59:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 03:59:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 03:59:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 03:59:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 03:59:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 03:59:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 03:59:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 03:59:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 03:59:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 03:59:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-20 03:59:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 03:59:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 03:59:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 03:59:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 03:59:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 03:59:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 03:59:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 03:59:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 03:59:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 03:59:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 03:59:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 03:59:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 03:59:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-20 03:59:49,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:49,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939163922] [2023-12-20 03:59:49,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939163922] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:49,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556268963] [2023-12-20 03:59:49,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:59:49,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:49,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:49,206 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) [2023-12-20 03:59:49,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:59:49,911 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:59:49,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:59:49,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 03:59:49,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2023-12-20 03:59:51,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:51,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556268963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:51,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:51,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-12-20 03:59:51,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339433011] [2023-12-20 03:59:51,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:51,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:59:51,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:51,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:59:51,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:59:51,664 INFO L87 Difference]: Start difference. First operand 339 states and 545 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:51,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:51,926 INFO L93 Difference]: Finished difference Result 662 states and 1074 transitions. [2023-12-20 03:59:51,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:59:51,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342 [2023-12-20 03:59:51,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:51,931 INFO L225 Difference]: With dead ends: 662 [2023-12-20 03:59:51,932 INFO L226 Difference]: Without dead ends: 660 [2023-12-20 03:59:51,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:59:51,933 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 359 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:51,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2100 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:59:51,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2023-12-20 03:59:51,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 658. [2023-12-20 03:59:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 377 states have (on average 1.442970822281167) internal successors, (544), 380 states have internal predecessors, (544), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-20 03:59:51,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1071 transitions. [2023-12-20 03:59:51,994 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1071 transitions. Word has length 342 [2023-12-20 03:59:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:51,995 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1071 transitions. [2023-12-20 03:59:51,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2023-12-20 03:59:51,995 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1071 transitions. [2023-12-20 03:59:52,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-20 03:59:52,000 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:52,000 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:52,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:52,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-20 03:59:52,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:52,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash 114060924, now seen corresponding path program 1 times [2023-12-20 03:59:52,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809258025] [2023-12-20 03:59:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:52,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-20 03:59:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 03:59:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-20 03:59:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-20 03:59:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-20 03:59:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-20 03:59:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 03:59:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 03:59:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-20 03:59:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-20 03:59:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-20 03:59:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-20 03:59:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-20 03:59:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 03:59:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 03:59:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-20 03:59:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-20 03:59:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 03:59:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 03:59:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 03:59:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 03:59:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 03:59:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 03:59:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 03:59:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 03:59:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 03:59:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 03:59:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 03:59:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 03:59:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 03:59:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 03:59:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 03:59:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 03:59:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 03:59:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 03:59:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 03:59:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 03:59:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 03:59:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 03:59:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-20 03:59:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 03:59:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 03:59:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 03:59:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 03:59:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 03:59:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 03:59:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 03:59:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 03:59:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 03:59:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 03:59:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 03:59:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 03:59:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 03:59:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-20 03:59:52,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:52,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809258025] [2023-12-20 03:59:52,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809258025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:52,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130051814] [2023-12-20 03:59:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:52,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:52,931 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) [2023-12-20 03:59:52,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:59:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:53,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 03:59:53,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2023-12-20 03:59:53,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:59:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 5317 trivial. 0 not checked. [2023-12-20 03:59:53,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130051814] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:59:53,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:59:53,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-12-20 03:59:53,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620451176] [2023-12-20 03:59:53,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:59:53,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 03:59:53,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:53,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 03:59:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:59:53,997 INFO L87 Difference]: Start difference. First operand 658 states and 1071 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-20 03:59:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:54,677 INFO L93 Difference]: Finished difference Result 1357 states and 2213 transitions. [2023-12-20 03:59:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 03:59:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 347 [2023-12-20 03:59:54,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:54,681 INFO L225 Difference]: With dead ends: 1357 [2023-12-20 03:59:54,681 INFO L226 Difference]: Without dead ends: 701 [2023-12-20 03:59:54,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 03:59:54,684 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 36 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:54,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4134 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:59:54,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-20 03:59:54,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-20 03:59:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 420 states have (on average 1.4047619047619047) internal successors, (590), 423 states have internal predecessors, (590), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-20 03:59:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1117 transitions. [2023-12-20 03:59:54,715 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1117 transitions. Word has length 347 [2023-12-20 03:59:54,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:54,715 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1117 transitions. [2023-12-20 03:59:54,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2023-12-20 03:59:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1117 transitions. [2023-12-20 03:59:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-20 03:59:54,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:54,721 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:54,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:54,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:54,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash 538449001, now seen corresponding path program 2 times [2023-12-20 03:59:54,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386729652] [2023-12-20 03:59:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 03:59:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 03:59:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-20 03:59:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-20 03:59:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-20 03:59:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 03:59:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 03:59:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 03:59:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-20 03:59:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-20 03:59:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-20 03:59:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 03:59:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-20 03:59:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-20 03:59:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 03:59:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-20 03:59:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-20 03:59:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-20 03:59:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-20 03:59:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-20 03:59:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 03:59:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 03:59:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 03:59:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 03:59:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 03:59:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 03:59:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 03:59:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 03:59:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 03:59:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 03:59:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 03:59:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 03:59:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 03:59:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 03:59:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 03:59:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 03:59:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 03:59:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 03:59:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 03:59:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 03:59:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 03:59:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 03:59:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 03:59:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 03:59:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 03:59:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 03:59:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 03:59:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-20 03:59:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-20 03:59:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 03:59:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 03:59:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 03:59:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-20 03:59:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5622 trivial. 0 not checked. [2023-12-20 03:59:56,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:56,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386729652] [2023-12-20 03:59:56,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386729652] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:56,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750448738] [2023-12-20 03:59:56,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-20 03:59:56,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:56,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:56,165 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) [2023-12-20 03:59:56,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:59:57,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-20 03:59:57,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-20 03:59:57,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-20 03:59:57,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:59:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2023-12-20 03:59:57,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 03:59:57,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750448738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:59:57,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 03:59:57,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-12-20 03:59:57,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887692655] [2023-12-20 03:59:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:59:57,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:59:57,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:59:57,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:59:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:59:57,558 INFO L87 Difference]: Start difference. First operand 701 states and 1117 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-20 03:59:57,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:59:57,661 INFO L93 Difference]: Finished difference Result 1330 states and 2148 transitions. [2023-12-20 03:59:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:59:57,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 390 [2023-12-20 03:59:57,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:59:57,666 INFO L225 Difference]: With dead ends: 1330 [2023-12-20 03:59:57,666 INFO L226 Difference]: Without dead ends: 701 [2023-12-20 03:59:57,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:59:57,669 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:59:57,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1041 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:59:57,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-20 03:59:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-20 03:59:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 420 states have (on average 1.4023809523809523) internal successors, (589), 423 states have internal predecessors, (589), 261 states have call successors, (261), 19 states have call predecessors, (261), 19 states have return successors, (266), 260 states have call predecessors, (266), 259 states have call successors, (266) [2023-12-20 03:59:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1116 transitions. [2023-12-20 03:59:57,705 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1116 transitions. Word has length 390 [2023-12-20 03:59:57,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:59:57,706 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1116 transitions. [2023-12-20 03:59:57,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-12-20 03:59:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1116 transitions. [2023-12-20 03:59:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2023-12-20 03:59:57,712 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:59:57,713 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:59:57,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:59:57,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:57,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 03:59:57,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:59:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1485691521, now seen corresponding path program 1 times [2023-12-20 03:59:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:59:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184179800] [2023-12-20 03:59:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:59:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-20 03:59:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 03:59:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 03:59:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 03:59:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-20 03:59:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-20 03:59:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-20 03:59:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-20 03:59:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-20 03:59:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-20 03:59:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 03:59:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 03:59:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-20 03:59:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-20 03:59:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-20 03:59:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-20 03:59:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-20 03:59:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-20 03:59:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-20 03:59:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-20 03:59:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-20 03:59:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-20 03:59:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-20 03:59:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-20 03:59:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-20 03:59:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-20 03:59:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-20 03:59:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-20 03:59:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-20 03:59:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-20 03:59:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-20 03:59:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-20 03:59:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-20 03:59:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-20 03:59:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-20 03:59:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-20 03:59:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-20 03:59:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-20 03:59:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-20 03:59:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-20 03:59:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-20 03:59:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-12-20 03:59:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-20 03:59:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-20 03:59:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-20 03:59:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-20 03:59:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-20 03:59:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-20 03:59:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-20 03:59:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-12-20 03:59:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-12-20 03:59:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-20 03:59:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-12-20 03:59:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-20 03:59:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-20 03:59:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-20 03:59:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:59:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-20 03:59:59,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:59:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184179800] [2023-12-20 03:59:59,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184179800] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:59:59,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237922005] [2023-12-20 03:59:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:59:59,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:59:59,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:59:59,404 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) [2023-12-20 03:59:59,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 04:00:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:00,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 2790 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-20 04:00:00,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:00:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-12-20 04:00:00,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:00:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-20 04:00:00,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237922005] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:00:00,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:00:00,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 25 [2023-12-20 04:00:00,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495748033] [2023-12-20 04:00:00,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:00:00,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-20 04:00:00,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:00,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-20 04:00:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-20 04:00:00,908 INFO L87 Difference]: Start difference. First operand 701 states and 1116 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 23 states have internal predecessors, (130), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 04:00:05,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:09,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:12,067 INFO L93 Difference]: Finished difference Result 1439 states and 2313 transitions. [2023-12-20 04:00:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 04:00:12,068 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 23 states have internal predecessors, (130), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 409 [2023-12-20 04:00:12,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:12,072 INFO L225 Difference]: With dead ends: 1439 [2023-12-20 04:00:12,072 INFO L226 Difference]: Without dead ends: 751 [2023-12-20 04:00:12,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 916 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-20 04:00:12,075 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 36 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 194 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:12,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3275 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1284 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2023-12-20 04:00:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-20 04:00:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 745. [2023-12-20 04:00:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 462 states have (on average 1.3658008658008658) internal successors, (631), 467 states have internal predecessors, (631), 261 states have call successors, (261), 19 states have call predecessors, (261), 21 states have return successors, (270), 260 states have call predecessors, (270), 259 states have call successors, (270) [2023-12-20 04:00:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1162 transitions. [2023-12-20 04:00:12,122 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1162 transitions. Word has length 409 [2023-12-20 04:00:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:12,122 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1162 transitions. [2023-12-20 04:00:12,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 23 states have internal predecessors, (130), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-12-20 04:00:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1162 transitions. [2023-12-20 04:00:12,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2023-12-20 04:00:12,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:12,129 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:00:12,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 04:00:12,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:00:12,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:12,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:12,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1455171748, now seen corresponding path program 1 times [2023-12-20 04:00:12,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:12,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64734304] [2023-12-20 04:00:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:00:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:00:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:00:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:00:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:00:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:00:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:00:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:00:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:00:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:00:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:00:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:00:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:00:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:00:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:00:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:00:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:00:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:00:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:00:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:00:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:00:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:00:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:00:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:00:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 04:00:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 04:00:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 04:00:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 04:00:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 04:00:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 04:00:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 04:00:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 04:00:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 04:00:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:00:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:00:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 04:00:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 04:00:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 04:00:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-20 04:00:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 04:00:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-20 04:00:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 04:00:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 04:00:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-20 04:00:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-20 04:00:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 04:00:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-20 04:00:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 04:00:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 04:00:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 04:00:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-20 04:00:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-20 04:00:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-20 04:00:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-20 04:00:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-20 04:00:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7270 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7268 trivial. 0 not checked. [2023-12-20 04:00:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64734304] [2023-12-20 04:00:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64734304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:14,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:14,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:00:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848932761] [2023-12-20 04:00:14,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:14,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:00:14,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:14,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:00:14,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:00:14,629 INFO L87 Difference]: Start difference. First operand 745 states and 1162 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-20 04:00:18,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:23,852 INFO L93 Difference]: Finished difference Result 779 states and 1210 transitions. [2023-12-20 04:00:23,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:23,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 448 [2023-12-20 04:00:23,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:23,861 INFO L225 Difference]: With dead ends: 779 [2023-12-20 04:00:23,861 INFO L226 Difference]: Without dead ends: 777 [2023-12-20 04:00:23,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:00:23,862 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 693 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 730 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:23,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1603 Invalid, 2181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 1450 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-12-20 04:00:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-12-20 04:00:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 767. [2023-12-20 04:00:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 477 states have (on average 1.3626834381551363) internal successors, (650), 480 states have internal predecessors, (650), 266 states have call successors, (266), 20 states have call predecessors, (266), 23 states have return successors, (278), 268 states have call predecessors, (278), 264 states have call successors, (278) [2023-12-20 04:00:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1194 transitions. [2023-12-20 04:00:23,907 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1194 transitions. Word has length 448 [2023-12-20 04:00:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:23,909 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1194 transitions. [2023-12-20 04:00:23,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-12-20 04:00:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1194 transitions. [2023-12-20 04:00:23,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2023-12-20 04:00:23,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:23,914 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:00:23,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 04:00:23,914 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:23,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:23,915 INFO L85 PathProgramCache]: Analyzing trace with hash 628221469, now seen corresponding path program 1 times [2023-12-20 04:00:23,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:23,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792074486] [2023-12-20 04:00:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:00:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:00:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:00:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:00:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:00:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:00:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:00:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:00:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:00:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:00:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:00:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:00:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:00:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:00:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:00:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:00:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:00:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:00:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:00:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:00:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:00:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:00:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:00:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:00:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 04:00:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 04:00:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 04:00:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 04:00:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 04:00:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 04:00:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 04:00:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 04:00:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 04:00:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:00:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:00:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 04:00:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 04:00:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 04:00:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-20 04:00:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 04:00:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-20 04:00:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 04:00:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 04:00:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-20 04:00:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-20 04:00:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 04:00:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-20 04:00:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 04:00:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 04:00:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 04:00:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-20 04:00:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-20 04:00:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-20 04:00:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-20 04:00:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-20 04:00:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:00:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 7276 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7272 trivial. 0 not checked. [2023-12-20 04:00:25,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792074486] [2023-12-20 04:00:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792074486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:25,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:00:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311747314] [2023-12-20 04:00:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:25,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:00:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:00:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:00:25,832 INFO L87 Difference]: Start difference. First operand 767 states and 1194 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2023-12-20 04:00:29,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:33,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:37,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:37,743 INFO L93 Difference]: Finished difference Result 783 states and 1213 transitions. [2023-12-20 04:00:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:00:37,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 453 [2023-12-20 04:00:37,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:37,763 INFO L225 Difference]: With dead ends: 783 [2023-12-20 04:00:37,763 INFO L226 Difference]: Without dead ends: 781 [2023-12-20 04:00:37,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:00:37,765 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 694 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 731 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:37,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1571 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 1256 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2023-12-20 04:00:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-12-20 04:00:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 771. [2023-12-20 04:00:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 480 states have (on average 1.3604166666666666) internal successors, (653), 483 states have internal predecessors, (653), 266 states have call successors, (266), 21 states have call predecessors, (266), 24 states have return successors, (278), 268 states have call predecessors, (278), 264 states have call successors, (278) [2023-12-20 04:00:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1197 transitions. [2023-12-20 04:00:37,810 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1197 transitions. Word has length 453 [2023-12-20 04:00:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:37,811 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1197 transitions. [2023-12-20 04:00:37,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2023-12-20 04:00:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1197 transitions. [2023-12-20 04:00:37,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-20 04:00:37,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:37,816 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:00:37,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 04:00:37,816 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:37,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:37,817 INFO L85 PathProgramCache]: Analyzing trace with hash -356728678, now seen corresponding path program 1 times [2023-12-20 04:00:37,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:37,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454246907] [2023-12-20 04:00:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:37,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:00:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:00:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:00:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:00:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 04:00:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 04:00:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 04:00:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:00:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:00:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 04:00:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 04:00:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 04:00:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 04:00:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 04:00:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 04:00:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 04:00:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 04:00:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 04:00:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 04:00:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 04:00:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 04:00:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 04:00:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 04:00:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 04:00:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 04:00:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 04:00:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-20 04:00:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 04:00:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 04:00:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 04:00:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 04:00:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 04:00:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 04:00:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 04:00:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 04:00:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 04:00:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 04:00:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 04:00:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 04:00:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 04:00:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 04:00:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-20 04:00:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-20 04:00:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 04:00:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-20 04:00:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 04:00:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-20 04:00:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 04:00:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-20 04:00:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-12-20 04:00:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 04:00:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-20 04:00:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-20 04:00:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-20 04:00:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-20 04:00:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-20 04:00:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-20 04:00:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-20 04:00:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:00:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:00:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7286 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7280 trivial. 0 not checked. [2023-12-20 04:00:39,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:00:39,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454246907] [2023-12-20 04:00:39,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454246907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:00:39,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:00:39,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 04:00:39,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240114981] [2023-12-20 04:00:39,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:00:39,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 04:00:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:00:39,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 04:00:39,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 04:00:39,244 INFO L87 Difference]: Start difference. First operand 771 states and 1197 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 04:00:43,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:47,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:51,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:55,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:00:59,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:00:59,670 INFO L93 Difference]: Finished difference Result 2131 states and 3427 transitions. [2023-12-20 04:00:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 04:00:59,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) Word has length 459 [2023-12-20 04:00:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:00:59,677 INFO L225 Difference]: With dead ends: 2131 [2023-12-20 04:00:59,677 INFO L226 Difference]: Without dead ends: 1465 [2023-12-20 04:00:59,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-20 04:00:59,681 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 600 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 309 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-12-20 04:00:59,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1258 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 1166 Invalid, 4 Unknown, 0 Unchecked, 19.6s Time] [2023-12-20 04:00:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-12-20 04:00:59,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 775. [2023-12-20 04:00:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 482 states have (on average 1.3589211618257262) internal successors, (655), 487 states have internal predecessors, (655), 266 states have call successors, (266), 21 states have call predecessors, (266), 26 states have return successors, (284), 268 states have call predecessors, (284), 264 states have call successors, (284) [2023-12-20 04:00:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1205 transitions. [2023-12-20 04:00:59,756 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1205 transitions. Word has length 459 [2023-12-20 04:00:59,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:00:59,757 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1205 transitions. [2023-12-20 04:00:59,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 04:00:59,757 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1205 transitions. [2023-12-20 04:00:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-20 04:00:59,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:00:59,762 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:00:59,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 04:00:59,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:00:59,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:00:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1839086588, now seen corresponding path program 1 times [2023-12-20 04:00:59,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:00:59,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443844349] [2023-12-20 04:00:59,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:00:59,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:01:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:01:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:01:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:01:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:01:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:01:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:01:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:01:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:01:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:01:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:01:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:01:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:01:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:01:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:01:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:01:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:01:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:01:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:01:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:01:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:01:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:01:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:01:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 04:01:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 04:01:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 04:01:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 04:01:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 04:01:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 04:01:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 04:01:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 04:01:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 04:01:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:01:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:01:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 04:01:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 04:01:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 04:01:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-20 04:01:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 04:01:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-20 04:01:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 04:01:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 04:01:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-20 04:01:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-20 04:01:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 04:01:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-20 04:01:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 04:01:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 04:01:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 04:01:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-20 04:01:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-20 04:01:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-20 04:01:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-20 04:01:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-20 04:01:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:01:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-20 04:01:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7286 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7280 trivial. 0 not checked. [2023-12-20 04:01:01,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:01,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443844349] [2023-12-20 04:01:01,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443844349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:01:01,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:01:01,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:01:01,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301027094] [2023-12-20 04:01:01,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:01:01,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:01:01,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:01,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:01:01,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:01:01,643 INFO L87 Difference]: Start difference. First operand 775 states and 1205 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 04:01:05,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:09,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:13,878 INFO L93 Difference]: Finished difference Result 791 states and 1224 transitions. [2023-12-20 04:01:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) Word has length 458 [2023-12-20 04:01:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:13,892 INFO L225 Difference]: With dead ends: 791 [2023-12-20 04:01:13,892 INFO L226 Difference]: Without dead ends: 789 [2023-12-20 04:01:13,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:01:13,894 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 948 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 937 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:13,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 1571 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [937 Valid, 1256 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2023-12-20 04:01:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-12-20 04:01:13,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 779. [2023-12-20 04:01:13,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 485 states have (on average 1.3567010309278351) internal successors, (658), 490 states have internal predecessors, (658), 266 states have call successors, (266), 22 states have call predecessors, (266), 27 states have return successors, (284), 268 states have call predecessors, (284), 264 states have call successors, (284) [2023-12-20 04:01:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1208 transitions. [2023-12-20 04:01:13,950 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1208 transitions. Word has length 458 [2023-12-20 04:01:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:13,950 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1208 transitions. [2023-12-20 04:01:13,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (58), 3 states have call predecessors, (58), 4 states have call successors, (58) [2023-12-20 04:01:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1208 transitions. [2023-12-20 04:01:13,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-20 04:01:13,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:13,956 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:01:13,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 04:01:13,956 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:13,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 810544386, now seen corresponding path program 1 times [2023-12-20 04:01:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:13,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763826298] [2023-12-20 04:01:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:01:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:01:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 04:01:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 04:01:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 04:01:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:01:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:01:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 04:01:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 04:01:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 04:01:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 04:01:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 04:01:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 04:01:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 04:01:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 04:01:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 04:01:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 04:01:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 04:01:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 04:01:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 04:01:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 04:01:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 04:01:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 04:01:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 04:01:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-20 04:01:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 04:01:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 04:01:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 04:01:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 04:01:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 04:01:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 04:01:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 04:01:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 04:01:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 04:01:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 04:01:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 04:01:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 04:01:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 04:01:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 04:01:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-20 04:01:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-20 04:01:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 04:01:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-20 04:01:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 04:01:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-20 04:01:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 04:01:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-20 04:01:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-12-20 04:01:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 04:01:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-20 04:01:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-20 04:01:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-20 04:01:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-20 04:01:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-20 04:01:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-20 04:01:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-20 04:01:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:01:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-12-20 04:01:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 7300 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7292 trivial. 0 not checked. [2023-12-20 04:01:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763826298] [2023-12-20 04:01:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763826298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:01:15,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:01:15,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:01:15,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358204041] [2023-12-20 04:01:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:01:15,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:01:15,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:15,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:01:15,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:01:15,822 INFO L87 Difference]: Start difference. First operand 779 states and 1208 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (59), 3 states have call predecessors, (59), 4 states have call successors, (59) [2023-12-20 04:01:19,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:23,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:29,647 INFO L93 Difference]: Finished difference Result 795 states and 1227 transitions. [2023-12-20 04:01:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (59), 3 states have call predecessors, (59), 4 states have call successors, (59) Word has length 464 [2023-12-20 04:01:29,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:29,650 INFO L225 Difference]: With dead ends: 795 [2023-12-20 04:01:29,650 INFO L226 Difference]: Without dead ends: 793 [2023-12-20 04:01:29,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:01:29,652 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 705 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 474 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:29,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1908 Invalid, 2346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1870 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2023-12-20 04:01:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-12-20 04:01:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 783. [2023-12-20 04:01:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 488 states have (on average 1.3545081967213115) internal successors, (661), 493 states have internal predecessors, (661), 266 states have call successors, (266), 23 states have call predecessors, (266), 28 states have return successors, (284), 268 states have call predecessors, (284), 264 states have call successors, (284) [2023-12-20 04:01:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1211 transitions. [2023-12-20 04:01:29,709 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1211 transitions. Word has length 464 [2023-12-20 04:01:29,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:29,710 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1211 transitions. [2023-12-20 04:01:29,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (59), 3 states have call predecessors, (59), 4 states have call successors, (59) [2023-12-20 04:01:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1211 transitions. [2023-12-20 04:01:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-12-20 04:01:29,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:29,716 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:01:29,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 04:01:29,716 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:29,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:29,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1717007295, now seen corresponding path program 1 times [2023-12-20 04:01:29,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:29,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811937951] [2023-12-20 04:01:29,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:29,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:01:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:01:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-20 04:01:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-20 04:01:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-20 04:01:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:01:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:01:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 04:01:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-20 04:01:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-20 04:01:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-20 04:01:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-20 04:01:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-20 04:01:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-20 04:01:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-20 04:01:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-20 04:01:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-20 04:01:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-20 04:01:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-20 04:01:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-20 04:01:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-20 04:01:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-20 04:01:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-20 04:01:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-20 04:01:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-20 04:01:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-20 04:01:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-20 04:01:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-20 04:01:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-20 04:01:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 04:01:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-20 04:01:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-20 04:01:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-20 04:01:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-20 04:01:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-20 04:01:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-20 04:01:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-20 04:01:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-20 04:01:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-20 04:01:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-20 04:01:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-20 04:01:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-20 04:01:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-20 04:01:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-20 04:01:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-20 04:01:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-20 04:01:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-20 04:01:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-12-20 04:01:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-20 04:01:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-20 04:01:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-20 04:01:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-20 04:01:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-20 04:01:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-20 04:01:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-20 04:01:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-20 04:01:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:01:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-12-20 04:01:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-20 04:01:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 7318 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7308 trivial. 0 not checked. [2023-12-20 04:01:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:30,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811937951] [2023-12-20 04:01:30,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811937951] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:01:30,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:01:30,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 04:01:30,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092707772] [2023-12-20 04:01:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:01:30,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 04:01:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 04:01:30,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 04:01:30,922 INFO L87 Difference]: Start difference. First operand 783 states and 1211 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) [2023-12-20 04:01:35,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:39,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:43,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:47,494 INFO L93 Difference]: Finished difference Result 2167 states and 3469 transitions. [2023-12-20 04:01:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 04:01:47,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) Word has length 469 [2023-12-20 04:01:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:47,501 INFO L225 Difference]: With dead ends: 2167 [2023-12-20 04:01:47,501 INFO L226 Difference]: Without dead ends: 1489 [2023-12-20 04:01:47,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-20 04:01:47,506 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 670 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 352 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:47,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1132 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 1229 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2023-12-20 04:01:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-12-20 04:01:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 783. [2023-12-20 04:01:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 488 states have (on average 1.3545081967213115) internal successors, (661), 493 states have internal predecessors, (661), 266 states have call successors, (266), 23 states have call predecessors, (266), 28 states have return successors, (284), 268 states have call predecessors, (284), 264 states have call successors, (284) [2023-12-20 04:01:47,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1211 transitions. [2023-12-20 04:01:47,590 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1211 transitions. Word has length 469 [2023-12-20 04:01:47,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:47,590 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1211 transitions. [2023-12-20 04:01:47,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) [2023-12-20 04:01:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1211 transitions. [2023-12-20 04:01:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-12-20 04:01:47,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:47,595 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:01:47,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 04:01:47,595 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:47,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:47,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1271507100, now seen corresponding path program 1 times [2023-12-20 04:01:47,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:47,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157809298] [2023-12-20 04:01:47,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:47,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:01:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:01:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:01:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:01:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:01:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:01:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:01:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:01:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:01:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:01:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:01:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:01:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:01:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:01:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:01:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:01:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:01:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:01:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:01:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:01:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:01:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:01:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:01:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 04:01:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 04:01:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 04:01:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 04:01:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 04:01:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 04:01:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 04:01:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 04:01:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 04:01:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:01:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:01:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 04:01:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 04:01:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 04:01:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-20 04:01:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 04:01:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-20 04:01:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 04:01:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 04:01:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-20 04:01:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-20 04:01:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 04:01:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-20 04:01:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 04:01:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 04:01:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 04:01:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-20 04:01:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-20 04:01:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-20 04:01:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-20 04:01:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-20 04:01:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:01:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-20 04:01:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-20 04:01:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-20 04:01:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7318 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7308 trivial. 0 not checked. [2023-12-20 04:01:49,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:01:49,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157809298] [2023-12-20 04:01:49,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157809298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:01:49,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:01:49,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 04:01:49,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580738433] [2023-12-20 04:01:49,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:01:49,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:01:49,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:01:49,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:01:49,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-20 04:01:49,491 INFO L87 Difference]: Start difference. First operand 783 states and 1211 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) [2023-12-20 04:01:53,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:01:58,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:01:58,492 INFO L93 Difference]: Finished difference Result 799 states and 1230 transitions. [2023-12-20 04:01:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:01:58,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) Word has length 468 [2023-12-20 04:01:58,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:01:58,496 INFO L225 Difference]: With dead ends: 799 [2023-12-20 04:01:58,496 INFO L226 Difference]: Without dead ends: 795 [2023-12-20 04:01:58,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-20 04:01:58,499 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 947 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 934 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-20 04:01:58,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 1603 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 1450 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-12-20 04:01:58,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-20 04:01:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 785. [2023-12-20 04:01:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 490 states have (on average 1.3510204081632653) internal successors, (662), 494 states have internal predecessors, (662), 266 states have call successors, (266), 24 states have call predecessors, (266), 28 states have return successors, (284), 268 states have call predecessors, (284), 264 states have call successors, (284) [2023-12-20 04:01:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1212 transitions. [2023-12-20 04:01:58,615 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1212 transitions. Word has length 468 [2023-12-20 04:01:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:01:58,616 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1212 transitions. [2023-12-20 04:01:58,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (60), 3 states have call predecessors, (60), 4 states have call successors, (60) [2023-12-20 04:01:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1212 transitions. [2023-12-20 04:01:58,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-20 04:01:58,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:01:58,620 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:01:58,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 04:01:58,621 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:01:58,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:01:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash -348434851, now seen corresponding path program 1 times [2023-12-20 04:01:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:01:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141299317] [2023-12-20 04:01:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:01:58,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:01:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:01:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:01:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:01:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:01:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-20 04:01:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-20 04:01:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-20 04:01:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-20 04:01:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-20 04:01:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-20 04:01:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-20 04:01:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-20 04:01:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-20 04:01:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-20 04:01:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-20 04:01:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-20 04:01:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-20 04:01:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-20 04:01:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-20 04:01:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-20 04:01:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-20 04:01:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-20 04:01:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-20 04:01:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-20 04:01:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-20 04:01:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-20 04:01:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-20 04:01:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-20 04:01:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-20 04:01:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-20 04:01:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-20 04:01:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-20 04:01:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-20 04:01:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-20 04:01:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-20 04:01:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-20 04:01:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-20 04:01:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-20 04:01:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-20 04:01:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-20 04:01:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-20 04:01:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-20 04:01:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-20 04:01:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-20 04:01:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-20 04:01:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:01:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-20 04:02:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-20 04:02:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-20 04:02:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-20 04:02:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-20 04:02:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-20 04:02:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-20 04:02:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-20 04:02:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-20 04:02:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-20 04:02:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-20 04:02:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:02:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-20 04:02:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-20 04:02:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-20 04:02:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-20 04:02:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7340 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7328 trivial. 0 not checked. [2023-12-20 04:02:00,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:00,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141299317] [2023-12-20 04:02:00,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141299317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:00,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 04:02:00,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 04:02:00,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366228562] [2023-12-20 04:02:00,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:00,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 04:02:00,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:00,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 04:02:00,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 04:02:00,048 INFO L87 Difference]: Start difference. First operand 785 states and 1212 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2023-12-20 04:02:04,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:08,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:12,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:12,537 INFO L93 Difference]: Finished difference Result 795 states and 1226 transitions. [2023-12-20 04:02:12,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 04:02:12,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 473 [2023-12-20 04:02:12,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:12,541 INFO L225 Difference]: With dead ends: 795 [2023-12-20 04:02:12,541 INFO L226 Difference]: Without dead ends: 653 [2023-12-20 04:02:12,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-20 04:02:12,542 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 638 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 473 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:12,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1641 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1577 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2023-12-20 04:02:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-12-20 04:02:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 645. [2023-12-20 04:02:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 415 states have (on average 1.4096385542168675) internal successors, (585), 420 states have internal predecessors, (585), 207 states have call successors, (207), 17 states have call predecessors, (207), 22 states have return successors, (224), 209 states have call predecessors, (224), 206 states have call successors, (224) [2023-12-20 04:02:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1016 transitions. [2023-12-20 04:02:12,598 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1016 transitions. Word has length 473 [2023-12-20 04:02:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:12,598 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1016 transitions. [2023-12-20 04:02:12,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2023-12-20 04:02:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1016 transitions. [2023-12-20 04:02:12,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-20 04:02:12,633 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:12,633 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 40, 40, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:02:12,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 04:02:12,633 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:12,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:12,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1090686022, now seen corresponding path program 1 times [2023-12-20 04:02:12,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:12,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244826029] [2023-12-20 04:02:12,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:12,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:13,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:02:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:13,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:02:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:02:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:02:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 04:02:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:14,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 04:02:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:02:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:02:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:02:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:02:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:02:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:02:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:02:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:02:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:02:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:02:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:02:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:02:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:02:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:02:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:02:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:02:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:02:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:02:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:02:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:02:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:02:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:02:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 04:02:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 04:02:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 04:02:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 04:02:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 04:02:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 04:02:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-20 04:02:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-20 04:02:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 04:02:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 04:02:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 04:02:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-20 04:02:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-20 04:02:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 04:02:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-20 04:02:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 04:02:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-20 04:02:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-20 04:02:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-20 04:02:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-20 04:02:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-20 04:02:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-20 04:02:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-20 04:02:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-20 04:02:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-20 04:02:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-20 04:02:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-20 04:02:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-20 04:02:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-20 04:02:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-20 04:02:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-20 04:02:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8181 trivial. 0 not checked. [2023-12-20 04:02:14,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244826029] [2023-12-20 04:02:14,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244826029] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:14,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133322642] [2023-12-20 04:02:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:14,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:14,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:14,201 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) [2023-12-20 04:02:14,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 04:02:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:16,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 3823 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-20 04:02:16,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:16,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-12-20 04:02:16,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-20 04:02:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 1040 proven. 4 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-20 04:02:16,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:02:16,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 8 [2023-12-20 04:02:16,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8180 trivial. 0 not checked. [2023-12-20 04:02:16,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133322642] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:02:16,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:02:16,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2023-12-20 04:02:16,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061634830] [2023-12-20 04:02:16,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:02:16,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 04:02:16,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:16,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 04:02:16,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-20 04:02:16,970 INFO L87 Difference]: Start difference. First operand 645 states and 1016 transitions. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 8 states have internal predecessors, (149), 8 states have call successors, (127), 8 states have call predecessors, (127), 6 states have return successors, (124), 8 states have call predecessors, (124), 8 states have call successors, (124) [2023-12-20 04:02:21,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:25,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:29,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:33,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:37,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:41,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:45,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:49,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:02:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:02:52,733 INFO L93 Difference]: Finished difference Result 1391 states and 2259 transitions. [2023-12-20 04:02:52,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 04:02:52,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 8 states have internal predecessors, (149), 8 states have call successors, (127), 8 states have call predecessors, (127), 6 states have return successors, (124), 8 states have call predecessors, (124), 8 states have call successors, (124) Word has length 505 [2023-12-20 04:02:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:02:52,739 INFO L225 Difference]: With dead ends: 1391 [2023-12-20 04:02:52,739 INFO L226 Difference]: Without dead ends: 1267 [2023-12-20 04:02:52,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1165 GetRequests, 1140 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2023-12-20 04:02:52,740 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1408 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 1285 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1285 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2023-12-20 04:02:52,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1439 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1285 Valid, 1582 Invalid, 8 Unknown, 0 Unchecked, 34.8s Time] [2023-12-20 04:02:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-12-20 04:02:52,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1221. [2023-12-20 04:02:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 749 states have (on average 1.4566088117489986) internal successors, (1091), 760 states have internal predecessors, (1091), 423 states have call successors, (423), 33 states have call predecessors, (423), 48 states have return successors, (481), 431 states have call predecessors, (481), 422 states have call successors, (481) [2023-12-20 04:02:52,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1995 transitions. [2023-12-20 04:02:52,896 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1995 transitions. Word has length 505 [2023-12-20 04:02:52,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:02:52,896 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 1995 transitions. [2023-12-20 04:02:52,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 8 states have internal predecessors, (149), 8 states have call successors, (127), 8 states have call predecessors, (127), 6 states have return successors, (124), 8 states have call predecessors, (124), 8 states have call successors, (124) [2023-12-20 04:02:52,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1995 transitions. [2023-12-20 04:02:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-20 04:02:52,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:02:52,905 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 40, 40, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:02:52,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 04:02:53,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-20 04:02:53,121 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:02:53,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:02:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1574900887, now seen corresponding path program 1 times [2023-12-20 04:02:53,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:02:53,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122746195] [2023-12-20 04:02:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:02:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:02:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:02:54,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-20 04:02:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:02:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 04:02:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-20 04:02:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-20 04:02:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 04:02:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 04:02:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:02:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-20 04:02:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-20 04:02:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-20 04:02:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-20 04:02:54,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-20 04:02:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-20 04:02:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-20 04:02:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-20 04:02:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-20 04:02:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-20 04:02:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-20 04:02:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-20 04:02:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-20 04:02:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-20 04:02:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-20 04:02:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-20 04:02:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-20 04:02:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-20 04:02:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-20 04:02:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-20 04:02:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-20 04:02:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-20 04:02:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-20 04:02:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-20 04:02:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-20 04:02:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-20 04:02:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-20 04:02:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-20 04:02:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-20 04:02:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-20 04:02:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-20 04:02:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-20 04:02:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-20 04:02:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-20 04:02:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-20 04:02:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-20 04:02:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-20 04:02:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-20 04:02:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-20 04:02:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-20 04:02:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-20 04:02:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-20 04:02:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-20 04:02:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-20 04:02:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-20 04:02:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-20 04:02:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-20 04:02:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-20 04:02:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-20 04:02:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-20 04:02:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-20 04:02:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-20 04:02:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8181 trivial. 0 not checked. [2023-12-20 04:02:54,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:02:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122746195] [2023-12-20 04:02:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122746195] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:02:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860139599] [2023-12-20 04:02:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:02:54,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:02:54,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:02:54,795 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) [2023-12-20 04:02:54,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 04:02:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:02:56,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 04:02:56,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:02:57,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:02:57,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2023-12-20 04:02:57,119 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 [2023-12-20 04:02:57,184 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:02:57,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-20 04:02:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 7940 trivial. 0 not checked. [2023-12-20 04:02:57,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 04:02:57,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860139599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 04:02:57,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 04:02:57,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2023-12-20 04:02:57,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795165187] [2023-12-20 04:02:57,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 04:02:57,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 04:02:57,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:02:57,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 04:02:57,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-20 04:02:57,282 INFO L87 Difference]: Start difference. First operand 1221 states and 1995 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2023-12-20 04:03:01,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:05,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:09,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:13,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:17,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:21,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:03:21,833 INFO L93 Difference]: Finished difference Result 2158 states and 3526 transitions. [2023-12-20 04:03:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 04:03:21,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) Word has length 505 [2023-12-20 04:03:21,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:03:21,838 INFO L225 Difference]: With dead ends: 2158 [2023-12-20 04:03:21,838 INFO L226 Difference]: Without dead ends: 923 [2023-12-20 04:03:21,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-12-20 04:03:21,843 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 703 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 2120 mSolverCounterSat, 417 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 2120 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:03:21,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 2489 Invalid, 2542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 2120 Invalid, 5 Unknown, 0 Unchecked, 24.2s Time] [2023-12-20 04:03:21,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-20 04:03:21,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 902. [2023-12-20 04:03:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 561 states have (on average 1.35650623885918) internal successors, (761), 567 states have internal predecessors, (761), 305 states have call successors, (305), 28 states have call predecessors, (305), 35 states have return successors, (338), 308 states have call predecessors, (338), 304 states have call successors, (338) [2023-12-20 04:03:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1404 transitions. [2023-12-20 04:03:21,940 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1404 transitions. Word has length 505 [2023-12-20 04:03:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:03:21,940 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1404 transitions. [2023-12-20 04:03:21,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63) [2023-12-20 04:03:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1404 transitions. [2023-12-20 04:03:21,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-20 04:03:21,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:03:21,946 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 40, 40, 11, 11, 11, 11, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:03:21,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 04:03:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:22,160 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:03:22,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:03:22,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1945907664, now seen corresponding path program 1 times [2023-12-20 04:03:22,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:03:22,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393902321] [2023-12-20 04:03:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:22,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:03:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:03:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:03:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:03:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:03:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 04:03:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:03:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-20 04:03:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:03:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 04:03:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:03:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 04:03:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:03:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:03:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 04:03:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:03:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:03:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:03:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:03:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:03:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:03:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:03:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:03:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:03:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:03:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:03:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:03:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:03:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:03:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:03:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:03:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:03:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:03:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:03:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:03:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:03:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:03:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:03:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:03:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:03:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:03:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:03:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:03:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:03:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:03:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 04:03:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-20 04:03:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-20 04:03:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-20 04:03:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:03:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:03:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2023-12-20 04:03:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-20 04:03:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-20 04:03:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-20 04:03:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-20 04:03:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-20 04:03:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2023-12-20 04:03:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-20 04:03:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-20 04:03:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2023-12-20 04:03:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-20 04:03:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-20 04:03:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-20 04:03:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-20 04:03:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-20 04:03:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2023-12-20 04:03:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:24,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-20 04:03:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-20 04:03:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9789 trivial. 0 not checked. [2023-12-20 04:03:24,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:03:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393902321] [2023-12-20 04:03:24,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393902321] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:03:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923267266] [2023-12-20 04:03:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:03:24,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:03:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:03:24,018 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) [2023-12-20 04:03:24,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 04:03:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:03:25,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-20 04:03:25,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:03:26,012 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 [2023-12-20 04:03:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 2288 proven. 74 refuted. 0 times theorem prover too weak. 7430 trivial. 0 not checked. [2023-12-20 04:03:26,812 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:03:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 9562 trivial. 0 not checked. [2023-12-20 04:03:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923267266] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:03:28,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:03:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2023-12-20 04:03:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848379823] [2023-12-20 04:03:28,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:03:28,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 04:03:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:03:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 04:03:28,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2023-12-20 04:03:28,394 INFO L87 Difference]: Start difference. First operand 902 states and 1404 transitions. Second operand has 32 states, 30 states have (on average 5.8) internal successors, (174), 28 states have internal predecessors, (174), 15 states have call successors, (150), 12 states have call predecessors, (150), 12 states have return successors, (148), 10 states have call predecessors, (148), 15 states have call successors, (148) [2023-12-20 04:03:32,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:36,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:40,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:44,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:48,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:52,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:03:56,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:00,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:04,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:08,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:12,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:16,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:20,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:24,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:28,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:32,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:36,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:04:40,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:05:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:05:01,023 INFO L93 Difference]: Finished difference Result 2552 states and 4076 transitions. [2023-12-20 04:05:01,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-20 04:05:01,023 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.8) internal successors, (174), 28 states have internal predecessors, (174), 15 states have call successors, (150), 12 states have call predecessors, (150), 12 states have return successors, (148), 10 states have call predecessors, (148), 15 states have call successors, (148) Word has length 568 [2023-12-20 04:05:01,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:05:01,030 INFO L225 Difference]: With dead ends: 2552 [2023-12-20 04:05:01,031 INFO L226 Difference]: Without dead ends: 1742 [2023-12-20 04:05:01,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1376 GetRequests, 1288 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2431 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=1608, Invalid=6402, Unknown=0, NotChecked=0, Total=8010 [2023-12-20 04:05:01,034 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3062 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 7057 mSolverCounterSat, 2284 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 4469 SdHoareTripleChecker+Invalid, 9359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2284 IncrementalHoareTripleChecker+Valid, 7057 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.3s IncrementalHoareTripleChecker+Time [2023-12-20 04:05:01,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 4469 Invalid, 9359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2284 Valid, 7057 Invalid, 18 Unknown, 0 Unchecked, 84.3s Time] [2023-12-20 04:05:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-12-20 04:05:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1416. [2023-12-20 04:05:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 870 states have (on average 1.4367816091954022) internal successors, (1250), 879 states have internal predecessors, (1250), 476 states have call successors, (476), 57 states have call predecessors, (476), 69 states have return successors, (537), 483 states have call predecessors, (537), 475 states have call successors, (537) [2023-12-20 04:05:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2263 transitions. [2023-12-20 04:05:01,202 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2263 transitions. Word has length 568 [2023-12-20 04:05:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:05:01,203 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 2263 transitions. [2023-12-20 04:05:01,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.8) internal successors, (174), 28 states have internal predecessors, (174), 15 states have call successors, (150), 12 states have call predecessors, (150), 12 states have return successors, (148), 10 states have call predecessors, (148), 15 states have call successors, (148) [2023-12-20 04:05:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2263 transitions. [2023-12-20 04:05:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-20 04:05:01,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:05:01,210 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 40, 40, 11, 11, 11, 11, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:05:01,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 04:05:01,420 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,SelfDestructingSolverStorable17 [2023-12-20 04:05:01,421 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:05:01,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:05:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 264983694, now seen corresponding path program 1 times [2023-12-20 04:05:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:05:01,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450715767] [2023-12-20 04:05:01,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:01,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:05:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:05:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:05:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:05:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:05:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 04:05:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-20 04:05:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-20 04:05:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 04:05:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 04:05:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-20 04:05:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 04:05:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-20 04:05:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-20 04:05:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 04:05:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-20 04:05:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:05:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-20 04:05:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-20 04:05:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-20 04:05:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-20 04:05:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-20 04:05:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-20 04:05:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-20 04:05:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-20 04:05:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-20 04:05:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-20 04:05:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:05:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:05:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:05:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:05:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:05:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:05:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:05:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:05:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:05:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:05:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:05:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:05:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:05:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:05:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:05:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:05:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:05:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:05:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 04:05:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-20 04:05:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-20 04:05:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-20 04:05:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:05:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:05:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2023-12-20 04:05:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-20 04:05:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-20 04:05:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-20 04:05:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-20 04:05:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-20 04:05:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2023-12-20 04:05:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-20 04:05:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-20 04:05:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2023-12-20 04:05:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-20 04:05:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-20 04:05:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-20 04:05:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-20 04:05:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-20 04:05:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2023-12-20 04:05:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-20 04:05:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-20 04:05:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 9737 trivial. 0 not checked. [2023-12-20 04:05:04,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:05:04,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450715767] [2023-12-20 04:05:04,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450715767] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:05:04,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310864800] [2023-12-20 04:05:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:05:04,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:05:04,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:05:04,872 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:05:04,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 04:05:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:05:06,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 4129 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-20 04:05:06,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:05:07,444 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 13 treesize of output 9 [2023-12-20 04:05:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:05:18,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:05:18,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-12-20 04:05:20,680 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-20 04:05:20,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 [2023-12-20 04:05:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 2496 proven. 4 refuted. 0 times theorem prover too weak. 7292 trivial. 0 not checked. [2023-12-20 04:05:56,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:05:57,032 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 23 [2023-12-20 04:05:57,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 [2023-12-20 04:05:57,586 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 20 treesize of output 18 [2023-12-20 04:05:57,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 22 [2023-12-20 04:05:57,674 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 20 treesize of output 18 [2023-12-20 04:05:57,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 22 [2023-12-20 04:05:57,968 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9788 trivial. 0 not checked. [2023-12-20 04:05:57,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310864800] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:05:57,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:05:57,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 9] total 35 [2023-12-20 04:05:57,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227943769] [2023-12-20 04:05:57,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:05:57,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 04:05:57,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:05:57,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 04:05:57,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1043, Unknown=5, NotChecked=0, Total=1190 [2023-12-20 04:05:57,971 INFO L87 Difference]: Start difference. First operand 1416 states and 2263 transitions. Second operand has 35 states, 30 states have (on average 7.2) internal successors, (216), 29 states have internal predecessors, (216), 17 states have call successors, (158), 13 states have call predecessors, (158), 12 states have return successors, (156), 16 states have call predecessors, (156), 17 states have call successors, (156) [2023-12-20 04:06:02,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:06,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:10,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:14,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:18,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:06:22,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:26,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:30,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:34,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:38,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:42,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:46,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:50,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:54,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:06:58,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:02,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:06,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:10,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:14,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:18,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:22,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:26,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:07:30,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:07:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:07:55,161 INFO L93 Difference]: Finished difference Result 4025 states and 6363 transitions. [2023-12-20 04:07:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-20 04:07:55,162 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 30 states have (on average 7.2) internal successors, (216), 29 states have internal predecessors, (216), 17 states have call successors, (158), 13 states have call predecessors, (158), 12 states have return successors, (156), 16 states have call predecessors, (156), 17 states have call successors, (156) Word has length 568 [2023-12-20 04:07:55,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:07:55,171 INFO L225 Difference]: With dead ends: 4025 [2023-12-20 04:07:55,171 INFO L226 Difference]: Without dead ends: 2716 [2023-12-20 04:07:55,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 1280 SyntacticMatches, 7 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 55.6s TimeCoverageRelationStatistics Valid=1199, Invalid=5936, Unknown=5, NotChecked=0, Total=7140 [2023-12-20 04:07:55,177 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 3239 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 8130 mSolverCounterSat, 5727 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3239 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 13880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5727 IncrementalHoareTripleChecker+Valid, 8130 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.6s IncrementalHoareTripleChecker+Time [2023-12-20 04:07:55,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3239 Valid, 3857 Invalid, 13880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5727 Valid, 8130 Invalid, 23 Unknown, 0 Unchecked, 109.6s Time] [2023-12-20 04:07:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2023-12-20 04:07:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2407. [2023-12-20 04:07:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 1453 states have (on average 1.2938747419132828) internal successors, (1880), 1445 states have internal predecessors, (1880), 821 states have call successors, (821), 82 states have call predecessors, (821), 132 states have return successors, (1012), 879 states have call predecessors, (1012), 820 states have call successors, (1012) [2023-12-20 04:07:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3713 transitions. [2023-12-20 04:07:55,585 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3713 transitions. Word has length 568 [2023-12-20 04:07:55,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:07:55,585 INFO L495 AbstractCegarLoop]: Abstraction has 2407 states and 3713 transitions. [2023-12-20 04:07:55,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 30 states have (on average 7.2) internal successors, (216), 29 states have internal predecessors, (216), 17 states have call successors, (158), 13 states have call predecessors, (158), 12 states have return successors, (156), 16 states have call predecessors, (156), 17 states have call successors, (156) [2023-12-20 04:07:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3713 transitions. [2023-12-20 04:07:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2023-12-20 04:07:55,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:07:55,596 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 40, 40, 16, 16, 16, 16, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:07:55,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 04:07:55,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:07:55,811 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:07:55,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:07:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1875659456, now seen corresponding path program 1 times [2023-12-20 04:07:55,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:07:55,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287408094] [2023-12-20 04:07:55,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:07:55,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:07:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:07:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:07:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:07:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:07:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 04:07:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 04:07:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 04:07:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 04:07:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:07:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:07:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:07:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:07:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:07:59,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:08:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 04:08:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:08:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:08:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:08:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:08:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:08:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:08:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 04:08:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-20 04:08:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:08:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-20 04:08:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-20 04:08:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-20 04:08:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-20 04:08:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-20 04:08:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-20 04:08:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-20 04:08:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-20 04:08:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-20 04:08:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-20 04:08:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-20 04:08:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-20 04:08:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-20 04:08:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-20 04:08:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-20 04:08:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-20 04:08:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-20 04:08:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-20 04:08:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-20 04:08:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-20 04:08:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-20 04:08:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-20 04:08:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-20 04:08:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-20 04:08:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2023-12-20 04:08:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-20 04:08:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-20 04:08:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-20 04:08:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-20 04:08:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-20 04:08:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2023-12-20 04:08:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-20 04:08:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-20 04:08:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2023-12-20 04:08:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-20 04:08:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-20 04:08:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-20 04:08:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-20 04:08:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-20 04:08:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2023-12-20 04:08:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-20 04:08:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-20 04:08:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2023-12-20 04:08:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2023-12-20 04:08:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2023-12-20 04:08:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2023-12-20 04:08:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2023-12-20 04:08:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2023-12-20 04:08:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2023-12-20 04:08:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2023-12-20 04:08:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2023-12-20 04:08:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2023-12-20 04:08:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:00,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11356 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11350 trivial. 0 not checked. [2023-12-20 04:08:00,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:08:00,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287408094] [2023-12-20 04:08:00,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287408094] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:08:00,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729933716] [2023-12-20 04:08:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:08:00,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:08:00,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:08:00,637 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:08:00,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 04:08:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:08:02,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 4444 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-20 04:08:02,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:08:05,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-12-20 04:08:05,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:08:05,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-12-20 04:08:05,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:08:05,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2023-12-20 04:08:07,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2023-12-20 04:08:07,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 7 [2023-12-20 04:08:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 11356 backedges. 3621 proven. 143 refuted. 0 times theorem prover too weak. 7592 trivial. 0 not checked. [2023-12-20 04:08:07,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:08:07,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 [2023-12-20 04:08:08,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 72 treesize of output 70 [2023-12-20 04:08:09,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729933716] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:08:09,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 04:08:09,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23] total 39 [2023-12-20 04:08:09,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568723573] [2023-12-20 04:08:09,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 04:08:09,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-20 04:08:09,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:08:09,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-20 04:08:09,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2418, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 04:08:09,525 INFO L87 Difference]: Start difference. First operand 2407 states and 3713 transitions. Second operand has 39 states, 37 states have (on average 5.72972972972973) internal successors, (212), 35 states have internal predecessors, (212), 20 states have call successors, (155), 13 states have call predecessors, (155), 16 states have return successors, (154), 19 states have call predecessors, (154), 20 states have call successors, (154) [2023-12-20 04:08:14,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:18,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:22,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:26,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:30,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:34,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:38,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:42,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:46,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:50,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:54,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:08:58,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:02,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:06,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:10,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:14,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:18,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:22,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:26,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:30,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:34,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:38,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:42,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:46,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:50,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:54,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:09:58,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:02,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:06,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:10:10,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-20 04:12:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 04:12:45,389 INFO L93 Difference]: Finished difference Result 15510 states and 23804 transitions. [2023-12-20 04:12:45,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2023-12-20 04:12:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 5.72972972972973) internal successors, (212), 35 states have internal predecessors, (212), 20 states have call successors, (155), 13 states have call predecessors, (155), 16 states have return successors, (154), 19 states have call predecessors, (154), 20 states have call successors, (154) Word has length 628 [2023-12-20 04:12:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 04:12:45,440 INFO L225 Difference]: With dead ends: 15510 [2023-12-20 04:12:45,440 INFO L226 Difference]: Without dead ends: 12580 [2023-12-20 04:12:45,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1187 SyntacticMatches, 1 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18496 ImplicationChecksByTransitivity, 40.6s TimeCoverageRelationStatistics Valid=6194, Invalid=48328, Unknown=0, NotChecked=0, Total=54522 [2023-12-20 04:12:45,461 INFO L413 NwaCegarLoop]: 1820 mSDtfsCounter, 8667 mSDsluCounter, 22910 mSDsCounter, 0 mSdLazyCounter, 58490 mSolverCounterSat, 10317 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8904 SdHoareTripleChecker+Valid, 24730 SdHoareTripleChecker+Invalid, 68837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 10317 IncrementalHoareTripleChecker+Valid, 58490 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 232.2s IncrementalHoareTripleChecker+Time [2023-12-20 04:12:45,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8904 Valid, 24730 Invalid, 68837 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [10317 Valid, 58490 Invalid, 30 Unknown, 0 Unchecked, 232.2s Time] [2023-12-20 04:12:45,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12580 states. [2023-12-20 04:12:47,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12580 to 7779. [2023-12-20 04:12:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 4570 states have (on average 1.2341356673960613) internal successors, (5640), 4600 states have internal predecessors, (5640), 2758 states have call successors, (2758), 309 states have call predecessors, (2758), 450 states have return successors, (3266), 2878 states have call predecessors, (3266), 2757 states have call successors, (3266) [2023-12-20 04:12:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 11664 transitions. [2023-12-20 04:12:47,231 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 11664 transitions. Word has length 628 [2023-12-20 04:12:47,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 04:12:47,231 INFO L495 AbstractCegarLoop]: Abstraction has 7779 states and 11664 transitions. [2023-12-20 04:12:47,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 5.72972972972973) internal successors, (212), 35 states have internal predecessors, (212), 20 states have call successors, (155), 13 states have call predecessors, (155), 16 states have return successors, (154), 19 states have call predecessors, (154), 20 states have call successors, (154) [2023-12-20 04:12:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 11664 transitions. [2023-12-20 04:12:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2023-12-20 04:12:47,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 04:12:47,260 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 40, 40, 16, 16, 16, 16, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:12:47,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 04:12:47,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:12:47,477 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 04:12:47,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 04:12:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash 276796534, now seen corresponding path program 1 times [2023-12-20 04:12:47,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 04:12:47,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294982345] [2023-12-20 04:12:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:12:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 04:12:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-20 04:12:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:12:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:12:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 04:12:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-20 04:12:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-20 04:12:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 04:12:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 04:12:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 04:12:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-20 04:12:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-20 04:12:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-20 04:12:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 04:12:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-20 04:12:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-20 04:12:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-20 04:12:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 04:12:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-20 04:12:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-20 04:12:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-20 04:12:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 04:12:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-20 04:12:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-12-20 04:12:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-12-20 04:12:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-20 04:12:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-12-20 04:12:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-20 04:12:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-20 04:12:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-12-20 04:12:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-12-20 04:12:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-12-20 04:12:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-20 04:12:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-20 04:12:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-12-20 04:12:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-12-20 04:12:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-12-20 04:12:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-20 04:12:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-20 04:12:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-12-20 04:12:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2023-12-20 04:12:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-12-20 04:12:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-12-20 04:12:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-12-20 04:12:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2023-12-20 04:12:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-20 04:12:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-20 04:12:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-12-20 04:12:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2023-12-20 04:12:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-20 04:12:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-12-20 04:12:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-12-20 04:12:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-12-20 04:12:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2023-12-20 04:12:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-12-20 04:12:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-20 04:12:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-12-20 04:12:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2023-12-20 04:12:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-12-20 04:12:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2023-12-20 04:12:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2023-12-20 04:12:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2023-12-20 04:12:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2023-12-20 04:12:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2023-12-20 04:12:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2023-12-20 04:12:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2023-12-20 04:12:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2023-12-20 04:12:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2023-12-20 04:12:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2023-12-20 04:12:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2023-12-20 04:12:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 593 [2023-12-20 04:12:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2023-12-20 04:12:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 605 [2023-12-20 04:12:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2023-12-20 04:12:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2023-12-20 04:12:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 11359 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 11350 trivial. 0 not checked. [2023-12-20 04:12:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 04:12:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294982345] [2023-12-20 04:12:54,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294982345] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 04:12:54,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576573581] [2023-12-20 04:12:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 04:12:54,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 04:12:54,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 04:12:54,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 04:12:54,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 04:12:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 04:12:56,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 4470 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 04:12:56,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 04:12:56,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-12-20 04:13:02,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-20 04:13:02,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-20 04:13:02,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 48 [2023-12-20 04:13:03,010 INFO L349 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2023-12-20 04:13:03,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 106 [2023-12-20 04:13:03,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2023-12-20 04:13:03,610 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-20 04:13:03,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2023-12-20 04:13:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11359 backedges. 3616 proven. 51 refuted. 0 times theorem prover too weak. 7692 trivial. 0 not checked. [2023-12-20 04:13:03,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 04:13:03,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 8 [2023-12-20 04:13:03,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 56 treesize of output 54 [2023-12-20 04:13:04,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 26 [2023-12-20 04:13:04,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 26 [2023-12-20 04:13:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 11359 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11348 trivial. 0 not checked. [2023-12-20 04:13:05,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576573581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 04:13:05,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 04:13:05,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 13] total 46 [2023-12-20 04:13:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036848336] [2023-12-20 04:13:05,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 04:13:05,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-12-20 04:13:05,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 04:13:05,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-12-20 04:13:05,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=1907, Unknown=2, NotChecked=0, Total=2070 [2023-12-20 04:13:05,501 INFO L87 Difference]: Start difference. First operand 7779 states and 11664 transitions. Second operand has 46 states, 43 states have (on average 5.325581395348837) internal successors, (229), 40 states have internal predecessors, (229), 21 states have call successors, (171), 13 states have call predecessors, (171), 15 states have return successors, (166), 18 states have call predecessors, (166), 21 states have call successors, (166) [2023-12-20 04:13:09,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-20 04:13:14,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-20 04:13:14,420 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 [2023-12-20 04:13:14,436 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 04:13:15,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 04:13:15,621 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-20 04:13:15,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1449 GetRequests, 1400 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=176, Invalid=1984, Unknown=2, NotChecked=0, Total=2162 [2023-12-20 04:13:15,638 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 66 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-20 04:13:15,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 216 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2023-12-20 04:13:15,639 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 04:13:15,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 04:13:15,640 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-20 04:13:15,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-20 04:13:15,643 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 04:13:15,645 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 04:13:15,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 04:13:15 BoogieIcfgContainer [2023-12-20 04:13:15,646 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 04:13:15,647 INFO L158 Benchmark]: Toolchain (without parser) took 817725.29ms. Allocated memory was 198.2MB in the beginning and 1.0GB in the end (delta: 820.0MB). Free memory was 144.6MB in the beginning and 574.4MB in the end (delta: -429.8MB). Peak memory consumption was 391.4MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.98ms. Allocated memory is still 198.2MB. Free memory was 144.3MB in the beginning and 147.0MB in the end (delta: -2.6MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.18ms. Allocated memory is still 198.2MB. Free memory was 147.0MB in the beginning and 138.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: Boogie Preprocessor took 119.35ms. Allocated memory is still 198.2MB. Free memory was 137.5MB in the beginning and 125.5MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: RCFGBuilder took 5270.09ms. Allocated memory was 198.2MB in the beginning and 265.3MB in the end (delta: 67.1MB). Free memory was 125.5MB in the beginning and 183.1MB in the end (delta: -57.7MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,647 INFO L158 Benchmark]: TraceAbstraction took 811722.31ms. Allocated memory was 265.3MB in the beginning and 1.0GB in the end (delta: 752.9MB). Free memory was 182.1MB in the beginning and 574.4MB in the end (delta: -392.3MB). Peak memory consumption was 360.6MB. Max. memory is 8.0GB. [2023-12-20 04:13:15,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 145.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 537.98ms. Allocated memory is still 198.2MB. Free memory was 144.3MB in the beginning and 147.0MB in the end (delta: -2.6MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.18ms. Allocated memory is still 198.2MB. Free memory was 147.0MB in the beginning and 138.0MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 119.35ms. Allocated memory is still 198.2MB. Free memory was 137.5MB in the beginning and 125.5MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 5270.09ms. Allocated memory was 198.2MB in the beginning and 265.3MB in the end (delta: 67.1MB). Free memory was 125.5MB in the beginning and 183.1MB in the end (delta: -57.7MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. * TraceAbstraction took 811722.31ms. Allocated memory was 265.3MB in the beginning and 1.0GB in the end (delta: 752.9MB). Free memory was 182.1MB in the beginning and 574.4MB in the end (delta: -392.3MB). Peak memory consumption was 360.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 779]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 779). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 332 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 811.7s, OverallIterations: 21, TraceHistogramMax: 68, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 674.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 105 mSolverCounterUnknown, 24734 SdHoareTripleChecker+Valid, 602.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23481 mSDsluCounter, 65227 SdHoareTripleChecker+Invalid, 588.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54775 mSDsCounter, 25260 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90391 IncrementalHoareTripleChecker+Invalid, 115757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25260 mSolverCounterUnsat, 10452 mSDtfsCounter, 90391 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12187 GetRequests, 11496 SyntacticMatches, 14 SemanticMatches, 677 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24114 ImplicationChecksByTransitivity, 126.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7779occurred in iteration=20, InterpolantAutomatonStates: 503, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 6971 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.9s SsaConstructionTime, 7.1s SatisfiabilityAnalysisTime, 104.6s InterpolantComputationTime, 14797 NumberOfCodeBlocks, 14103 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 18117 ConstructedInterpolants, 49 QuantifiedInterpolants, 49654 SizeOfPredicates, 53 NumberOfNonLiveVariables, 32989 ConjunctsInSsa, 258 ConjunctsInUnsatCore, 39 InterpolantComputations, 13 PerfectInterpolantSequences, 296838/297668 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown