/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 14:36:33,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 14:36:33,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 14:36:33,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 14:36:33,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 14:36:33,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 14:36:33,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 14:36:33,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 14:36:33,508 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 14:36:33,511 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 14:36:33,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 14:36:33,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 14:36:33,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 14:36:33,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 14:36:33,513 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 14:36:33,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 14:36:33,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 14:36:33,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 14:36:33,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 14:36:33,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 14:36:33,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 14:36:33,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 14:36:33,516 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 14:36:33,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 14:36:33,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:36:33,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 14:36:33,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 14:36:33,518 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 14:36:33,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 14:36:33,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 14:36:33,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 14:36:33,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 14:36:33,714 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 14:36:33,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-21 14:36:34,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 14:36:34,916 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 14:36:34,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_queue-1.i [2023-12-21 14:36:34,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0a53212/b4372b8216894232a22ce19e00334307/FLAG3a6f39509 [2023-12-21 14:36:34,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e0a53212/b4372b8216894232a22ce19e00334307 [2023-12-21 14:36:34,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 14:36:34,955 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 14:36:34,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 14:36:34,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 14:36:34,963 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 14:36:34,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:36:34" (1/1) ... [2023-12-21 14:36:34,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fbbf08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:34, skipping insertion in model container [2023-12-21 14:36:34,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 02:36:34" (1/1) ... [2023-12-21 14:36:35,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 14:36:35,349 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] [2023-12-21 14:36:35,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:36:35,486 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 14:36:35,508 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] [2023-12-21 14:36:35,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 14:36:35,626 INFO L206 MainTranslator]: Completed translation [2023-12-21 14:36:35,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35 WrapperNode [2023-12-21 14:36:35,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 14:36:35,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 14:36:35,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 14:36:35,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 14:36:35,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,745 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1166 [2023-12-21 14:36:35,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 14:36:35,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 14:36:35,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 14:36:35,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 14:36:35,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,761 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,808 INFO L175 MemorySlicer]: Split 305 memory accesses to 19 slices as follows [2, 41, 8, 8, 50, 20, 12, 43, 8, 8, 3, 0, 7, 6, 68, 3, 3, 7, 8]. 22 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 0, 3, 3, 0, 6, 6, 0, 2, 2, 0, 0, 0, 2, 0, 0, 0, 0, 2]. The 94 writes are split as follows [0, 1, 2, 2, 4, 8, 3, 22, 4, 4, 1, 0, 1, 2, 34, 1, 1, 1, 3]. [2023-12-21 14:36:35,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,808 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 14:36:35,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 14:36:35,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 14:36:35,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 14:36:35,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (1/1) ... [2023-12-21 14:36:35,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 14:36:35,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:36:35,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 14:36:35,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 14:36:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 14:36:35,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 14:36:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-21 14:36:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2023-12-21 14:36:35,935 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2023-12-21 14:36:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-12-21 14:36:35,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-12-21 14:36:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-21 14:36:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-21 14:36:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-12-21 14:36:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-12-21 14:36:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-12-21 14:36:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-12-21 14:36:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-21 14:36:35,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-12-21 14:36:35,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-12-21 14:36:35,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 14:36:35,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 14:36:35,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-21 14:36:35,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 14:36:35,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 14:36:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 14:36:35,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 14:36:35,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-12-21 14:36:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-12-21 14:36:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-12-21 14:36:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-12-21 14:36:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-21 14:36:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-12-21 14:36:35,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 14:36:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 14:36:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 14:36:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 14:36:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 14:36:35,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 14:36:36,207 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 14:36:36,208 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 14:36:36,285 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)); [2023-12-21 14:36:36,285 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)); [2023-12-21 14:36:36,286 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; [2023-12-21 14:36:36,286 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; [2023-12-21 14:36:36,675 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2023-12-21 14:36:36,675 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; [2023-12-21 14:36:36,676 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)); [2023-12-21 14:36:36,676 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2023-12-21 14:36:36,676 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; [2023-12-21 14:36:36,676 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)); [2023-12-21 14:36:36,677 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; [2023-12-21 14:36:36,677 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)); [2023-12-21 14:36:36,680 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)); [2023-12-21 14:36:36,680 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; [2023-12-21 14:36:36,682 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)); [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,684 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)); [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,684 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)); [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,684 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)); [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,684 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)); [2023-12-21 14:36:36,684 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; [2023-12-21 14:36:36,685 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)); [2023-12-21 14:36:41,063 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 14:36:41,105 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 14:36:41,105 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-21 14:36:41,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:36:41 BoogieIcfgContainer [2023-12-21 14:36:41,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 14:36:41,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 14:36:41,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 14:36:41,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 14:36:41,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 02:36:34" (1/3) ... [2023-12-21 14:36:41,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcb70e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:36:41, skipping insertion in model container [2023-12-21 14:36:41,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 02:36:35" (2/3) ... [2023-12-21 14:36:41,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcb70e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 02:36:41, skipping insertion in model container [2023-12-21 14:36:41,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 02:36:41" (3/3) ... [2023-12-21 14:36:41,111 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2023-12-21 14:36:41,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 14:36:41,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 14:36:41,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 14:36:41,177 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;@62282a96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 14:36:41,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 14:36:41,181 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) [2023-12-21 14:36:41,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-21 14:36:41,205 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:41,206 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] [2023-12-21 14:36:41,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:41,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1278456058, now seen corresponding path program 1 times [2023-12-21 14:36:41,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748599212] [2023-12-21 14:36:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 14:36:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 14:36:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 14:36:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 14:36:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 14:36:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 14:36:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 14:36:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 14:36:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 14:36:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 14:36:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:36:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 14:36:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 14:36:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 14:36:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 14:36:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 14:36:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:36:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:36:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 14:36:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 14:36:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 14:36:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 14:36:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 14:36:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 14:36:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:36:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:36:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:36:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:36:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:36:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:36:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:36:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:36:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:36:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:36:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:36:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:36:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:36:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:36:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:36:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 14:36:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 14:36:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 14:36:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 14:36:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 14:36:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:36:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:36:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:36:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:36:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:36:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:36:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:36:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:36:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-21 14:36:42,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:42,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748599212] [2023-12-21 14:36:42,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748599212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:36:42,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:36:42,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:36:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163261412] [2023-12-21 14:36:42,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:36:42,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:36:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:42,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:36:42,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:36:42,486 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) [2023-12-21 14:36:42,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:36:42,675 INFO L93 Difference]: Finished difference Result 668 states and 1233 transitions. [2023-12-21 14:36:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:36:42,680 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 [2023-12-21 14:36:42,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:36:42,691 INFO L225 Difference]: With dead ends: 668 [2023-12-21 14:36:42,691 INFO L226 Difference]: Without dead ends: 335 [2023-12-21 14:36:42,697 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 [2023-12-21 14:36:42,699 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 [2023-12-21 14:36:42,699 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] [2023-12-21 14:36:42,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-21 14:36:42,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 329. [2023-12-21 14:36:42,752 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) [2023-12-21 14:36:42,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 535 transitions. [2023-12-21 14:36:42,756 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 535 transitions. Word has length 325 [2023-12-21 14:36:42,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:36:42,757 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 535 transitions. [2023-12-21 14:36:42,757 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) [2023-12-21 14:36:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 535 transitions. [2023-12-21 14:36:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-21 14:36:42,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:42,763 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] [2023-12-21 14:36:42,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 14:36:42,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:42,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1901390565, now seen corresponding path program 1 times [2023-12-21 14:36:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:42,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412048929] [2023-12-21 14:36:42,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:42,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 14:36:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:36:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 14:36:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 14:36:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:36:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 14:36:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 14:36:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 14:36:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 14:36:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 14:36:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 14:36:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 14:36:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 14:36:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 14:36:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 14:36:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 14:36:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 14:36:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 14:36:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 14:36:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 14:36:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 14:36:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 14:36:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 14:36:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 14:36:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 14:36:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 14:36:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 14:36:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 14:36:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 14:36:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 14:36:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 14:36:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-21 14:36:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-21 14:36:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 14:36:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-21 14:36:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-21 14:36:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 14:36:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-21 14:36:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-21 14:36:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 14:36:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 14:36:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 14:36:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 14:36:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-21 14:36:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-21 14:36:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 14:36:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-21 14:36:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-21 14:36:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 14:36:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 14:36:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-12-21 14:36:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 14:36:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2023-12-21 14:36:43,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:43,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412048929] [2023-12-21 14:36:43,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412048929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:36:43,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:36:43,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 14:36:43,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376943631] [2023-12-21 14:36:43,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:36:43,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:36:43,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:43,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:36:43,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 14:36:43,453 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) [2023-12-21 14:36:43,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:36:43,547 INFO L93 Difference]: Finished difference Result 659 states and 1074 transitions. [2023-12-21 14:36:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:36:43,551 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 [2023-12-21 14:36:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:36:43,563 INFO L225 Difference]: With dead ends: 659 [2023-12-21 14:36:43,563 INFO L226 Difference]: Without dead ends: 332 [2023-12-21 14:36:43,565 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 [2023-12-21 14:36:43,566 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 [2023-12-21 14:36:43,567 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] [2023-12-21 14:36:43,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-21 14:36:43,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2023-12-21 14:36:43,608 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) [2023-12-21 14:36:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 538 transitions. [2023-12-21 14:36:43,610 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 538 transitions. Word has length 332 [2023-12-21 14:36:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:36:43,611 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 538 transitions. [2023-12-21 14:36:43,611 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) [2023-12-21 14:36:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 538 transitions. [2023-12-21 14:36:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-12-21 14:36:43,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:43,615 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] [2023-12-21 14:36:43,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 14:36:43,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:43,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:43,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1982787695, now seen corresponding path program 1 times [2023-12-21 14:36:43,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:43,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54404718] [2023-12-21 14:36:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:43,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 14:36:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 14:36:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 14:36:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 14:36:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 14:36:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 14:36:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 14:36:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 14:36:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 14:36:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 14:36:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 14:36:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 14:36:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 14:36:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 14:36:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 14:36:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 14:36:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 14:36:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 14:36:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:36:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:36:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:36:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:36:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:36:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:36:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:36:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:36:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:36:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:36:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:36:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:36:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:36:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:36:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:36:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:36:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:36:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:36:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:36:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:36:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:36:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:36:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:36:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:36:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:36:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:36:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:36:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:36:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:36:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:36:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:36:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:36:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:36:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:36:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-21 14:36:44,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:44,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54404718] [2023-12-21 14:36:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54404718] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:36:44,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062753388] [2023-12-21 14:36:44,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:44,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:36:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:36:44,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:36:44,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 14:36:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:45,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 14:36:45,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:36:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-21 14:36:45,188 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:36:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2023-12-21 14:36:45,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062753388] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:36:45,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:36:45,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-12-21 14:36:45,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782496210] [2023-12-21 14:36:45,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:36:45,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:36:45,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:45,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:36:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:36:45,329 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) [2023-12-21 14:36:45,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:36:45,518 INFO L93 Difference]: Finished difference Result 669 states and 1088 transitions. [2023-12-21 14:36:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 14:36:45,519 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 [2023-12-21 14:36:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:36:45,521 INFO L225 Difference]: With dead ends: 669 [2023-12-21 14:36:45,521 INFO L226 Difference]: Without dead ends: 339 [2023-12-21 14:36:45,522 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 [2023-12-21 14:36:45,523 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 1 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:36:45,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3107 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:36:45,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-21 14:36:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-21 14:36:45,535 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) [2023-12-21 14:36:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 545 transitions. [2023-12-21 14:36:45,537 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 545 transitions. Word has length 335 [2023-12-21 14:36:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:36:45,538 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 545 transitions. [2023-12-21 14:36:45,538 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) [2023-12-21 14:36:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 545 transitions. [2023-12-21 14:36:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-12-21 14:36:45,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:36:45,542 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] [2023-12-21 14:36:45,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 14:36:45,751 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 [2023-12-21 14:36:45,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:36:45,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:36:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2093305563, now seen corresponding path program 2 times [2023-12-21 14:36:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:36:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981018855] [2023-12-21 14:36:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:36:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:36:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 14:36:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:36:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:36:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:36:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 14:36:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 14:36:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 14:36:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 14:36:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 14:36:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 14:36:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 14:36:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 14:36:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 14:36:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:36:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 14:36:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 14:36:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 14:36:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 14:36:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 14:36:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 14:36:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 14:36:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 14:36:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 14:36:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 14:36:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 14:36:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 14:36:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:36:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:36:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:36:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:36:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:36:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:36:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:36:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:36:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:36:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 14:36:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 14:36:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 14:36:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-21 14:36:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 14:36:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 14:36:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 14:36:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 14:36:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 14:36:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-21 14:36:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 14:36:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 14:36:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 14:36:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-21 14:36:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 14:36:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-21 14:36:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-21 14:36:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:36:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-21 14:36:46,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:36:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981018855] [2023-12-21 14:36:46,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981018855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:36:46,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212635513] [2023-12-21 14:36:46,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 14:36:46,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:36:46,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:36:46,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:36:46,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 14:36:47,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 14:36:47,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 14:36:47,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 14:36:47,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:36:47,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-21 14:36:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2023-12-21 14:36:48,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:36:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212635513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:36:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:36:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2023-12-21 14:36:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084932563] [2023-12-21 14:36:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:36:48,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 14:36:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:36:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 14:36:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:36:48,754 INFO L87 Difference]: Start difference. First operand 339 states and 545 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 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) [2023-12-21 14:36:52,825 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 [] [2023-12-21 14:36:56,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:00,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:02,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:02,316 INFO L93 Difference]: Finished difference Result 983 states and 1606 transitions. [2023-12-21 14:37:02,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 14:37:02,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 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 [2023-12-21 14:37:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:02,322 INFO L225 Difference]: With dead ends: 983 [2023-12-21 14:37:02,323 INFO L226 Difference]: Without dead ends: 981 [2023-12-21 14:37:02,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-12-21 14:37:02,324 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 1316 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 403 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:02,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 2465 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 382 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2023-12-21 14:37:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2023-12-21 14:37:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 658. [2023-12-21 14:37:02,366 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) [2023-12-21 14:37:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1071 transitions. [2023-12-21 14:37:02,370 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1071 transitions. Word has length 342 [2023-12-21 14:37:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:02,372 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1071 transitions. [2023-12-21 14:37:02,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 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) [2023-12-21 14:37:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1071 transitions. [2023-12-21 14:37:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-21 14:37:02,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:02,378 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] [2023-12-21 14:37:02,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:02,588 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 [2023-12-21 14:37:02,589 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:02,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash 114060924, now seen corresponding path program 1 times [2023-12-21 14:37:02,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:02,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867335504] [2023-12-21 14:37:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:02,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 14:37:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:37:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 14:37:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 14:37:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 14:37:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 14:37:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 14:37:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 14:37:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 14:37:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 14:37:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 14:37:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 14:37:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 14:37:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:37:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 14:37:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 14:37:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 14:37:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 14:37:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 14:37:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 14:37:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 14:37:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 14:37:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 14:37:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 14:37:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 14:37:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 14:37:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:37:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:37:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:37:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:37:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:37:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:37:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:37:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:37:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:37:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 14:37:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 14:37:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 14:37:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-21 14:37:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 14:37:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 14:37:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 14:37:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 14:37:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 14:37:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-21 14:37:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 14:37:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 14:37:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 14:37:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-21 14:37:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 14:37:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-21 14:37:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-21 14:37:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-21 14:37:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2023-12-21 14:37:03,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:03,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867335504] [2023-12-21 14:37:03,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867335504] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:03,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451304071] [2023-12-21 14:37:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:03,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:03,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:03,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:37:03,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 14:37:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:03,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 14:37:03,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2023-12-21 14:37:04,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:37:04,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 5317 trivial. 0 not checked. [2023-12-21 14:37:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451304071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:37:04,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:37:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-12-21 14:37:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574413321] [2023-12-21 14:37:04,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:37:04,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 14:37:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:04,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 14:37:04,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-21 14:37:04,232 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) [2023-12-21 14:37:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:04,766 INFO L93 Difference]: Finished difference Result 1357 states and 2213 transitions. [2023-12-21 14:37:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 14:37:04,767 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 [2023-12-21 14:37:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:04,770 INFO L225 Difference]: With dead ends: 1357 [2023-12-21 14:37:04,770 INFO L226 Difference]: Without dead ends: 701 [2023-12-21 14:37:04,772 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 [2023-12-21 14:37:04,773 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 36 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:04,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3103 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 14:37:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-21 14:37:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-21 14:37:04,833 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) [2023-12-21 14:37:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1117 transitions. [2023-12-21 14:37:04,837 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1117 transitions. Word has length 347 [2023-12-21 14:37:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:04,837 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1117 transitions. [2023-12-21 14:37:04,837 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) [2023-12-21 14:37:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1117 transitions. [2023-12-21 14:37:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2023-12-21 14:37:04,843 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:04,843 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] [2023-12-21 14:37:04,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:05,052 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 [2023-12-21 14:37:05,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:05,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:05,053 INFO L85 PathProgramCache]: Analyzing trace with hash 538449001, now seen corresponding path program 2 times [2023-12-21 14:37:05,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:05,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786782379] [2023-12-21 14:37:05,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:05,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:37:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 14:37:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 14:37:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 14:37:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 14:37:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 14:37:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:37:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:37:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 14:37:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 14:37:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 14:37:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 14:37:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 14:37:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 14:37:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 14:37:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 14:37:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 14:37:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-12-21 14:37:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-12-21 14:37:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-12-21 14:37:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:37:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:37:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:37:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:37:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:37:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:37:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:37:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:37:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:37:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 14:37:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 14:37:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 14:37:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 14:37:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 14:37:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:37:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:37:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:37:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:37:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:37:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:37:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:37:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:37:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 14:37:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 14:37:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 14:37:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 14:37:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 14:37:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 14:37:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 14:37:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 14:37:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 14:37:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 14:37:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 14:37:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5622 trivial. 0 not checked. [2023-12-21 14:37:06,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786782379] [2023-12-21 14:37:06,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786782379] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:06,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514916560] [2023-12-21 14:37:06,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 14:37:06,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:06,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:06,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:37:06,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 14:37:07,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-21 14:37:07,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 14:37:07,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 14:37:07,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2023-12-21 14:37:07,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:37:07,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514916560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:07,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:37:07,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2023-12-21 14:37:07,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560572583] [2023-12-21 14:37:07,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:07,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:37:07,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:07,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:37:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-12-21 14:37:07,387 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) [2023-12-21 14:37:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:07,497 INFO L93 Difference]: Finished difference Result 1330 states and 2148 transitions. [2023-12-21 14:37:07,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:37:07,498 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 [2023-12-21 14:37:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:07,501 INFO L225 Difference]: With dead ends: 1330 [2023-12-21 14:37:07,501 INFO L226 Difference]: Without dead ends: 701 [2023-12-21 14:37:07,530 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 [2023-12-21 14:37:07,531 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 [2023-12-21 14:37:07,531 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] [2023-12-21 14:37:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-12-21 14:37:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2023-12-21 14:37:07,562 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) [2023-12-21 14:37:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1116 transitions. [2023-12-21 14:37:07,565 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1116 transitions. Word has length 390 [2023-12-21 14:37:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:07,566 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1116 transitions. [2023-12-21 14:37:07,567 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) [2023-12-21 14:37:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1116 transitions. [2023-12-21 14:37:07,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2023-12-21 14:37:07,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:07,573 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] [2023-12-21 14:37:07,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:07,792 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 [2023-12-21 14:37:07,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:07,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1816842822, now seen corresponding path program 1 times [2023-12-21 14:37:07,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:07,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980946736] [2023-12-21 14:37:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:07,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 14:37:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:37:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 14:37:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 14:37:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 14:37:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 14:37:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 14:37:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 14:37:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 14:37:09,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 14:37:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 14:37:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 14:37:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 14:37:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-21 14:37:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 14:37:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-12-21 14:37:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 14:37:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 14:37:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-12-21 14:37:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-12-21 14:37:09,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-21 14:37:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-21 14:37:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-12-21 14:37:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-12-21 14:37:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-12-21 14:37:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-12-21 14:37:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-12-21 14:37:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-12-21 14:37:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-12-21 14:37:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-12-21 14:37:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-12-21 14:37:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 14:37:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-12-21 14:37:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-12-21 14:37:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-12-21 14:37:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-12-21 14:37:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-12-21 14:37:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-12-21 14:37:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2023-12-21 14:37:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-12-21 14:37:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2023-12-21 14:37:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2023-12-21 14:37:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 14:37:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2023-12-21 14:37:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-21 14:37:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-21 14:37:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 14:37:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-21 14:37:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2023-12-21 14:37:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-12-21 14:37:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 14:37:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-12-21 14:37:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-21 14:37:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-21 14:37:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-21 14:37:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-21 14:37:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:09,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980946736] [2023-12-21 14:37:09,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980946736] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:37:09,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118037407] [2023-12-21 14:37:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:09,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:37:09,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:37:09,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:37:09,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 14:37:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:10,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 14:37:10,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:37:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2023-12-21 14:37:10,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:37:10,902 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2023-12-21 14:37:10,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118037407] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:37:10,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:37:10,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 25 [2023-12-21 14:37:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342567258] [2023-12-21 14:37:10,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:37:10,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 14:37:10,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 14:37:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-21 14:37:10,905 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) [2023-12-21 14:37:15,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:19,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:21,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:21,293 INFO L93 Difference]: Finished difference Result 1439 states and 2313 transitions. [2023-12-21 14:37:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 14:37:21,293 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 [2023-12-21 14:37:21,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:21,297 INFO L225 Difference]: With dead ends: 1439 [2023-12-21 14:37:21,297 INFO L226 Difference]: Without dead ends: 751 [2023-12-21 14:37:21,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 916 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2023-12-21 14:37:21,299 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 35 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 196 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:21,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 2435 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1052 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2023-12-21 14:37:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-21 14:37:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 745. [2023-12-21 14:37:21,337 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) [2023-12-21 14:37:21,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1162 transitions. [2023-12-21 14:37:21,340 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1162 transitions. Word has length 409 [2023-12-21 14:37:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:21,340 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1162 transitions. [2023-12-21 14:37:21,340 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) [2023-12-21 14:37:21,340 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1162 transitions. [2023-12-21 14:37:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2023-12-21 14:37:21,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:21,345 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] [2023-12-21 14:37:21,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 14:37:21,555 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 [2023-12-21 14:37:21,556 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:21,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1455171748, now seen corresponding path program 1 times [2023-12-21 14:37:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:21,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617261499] [2023-12-21 14:37:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:21,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:37:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:37:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:37:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:37:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:37:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:37:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:37:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:37:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:37:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:37:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:37:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:37:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:37:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:37:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:37:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:37:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:37:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:37:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:37:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:37:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:37:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:37:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:37:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:37:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:37:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:37:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:37:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:37:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:37:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:37:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:37:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:37:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:37:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:37:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:37:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:37:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:37:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:37:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:37:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:37:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:37:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:37:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:37:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:37:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:37:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:37:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:37:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:37:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:37:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:37:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:37:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:37:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:37:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:37:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:37:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:23,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7270 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7268 trivial. 0 not checked. [2023-12-21 14:37:23,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:23,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617261499] [2023-12-21 14:37:23,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617261499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:23,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:23,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:37:23,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238754262] [2023-12-21 14:37:23,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:23,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:37:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:23,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:37:23,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:37:23,475 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) [2023-12-21 14:37:27,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:31,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:35,951 INFO L93 Difference]: Finished difference Result 779 states and 1210 transitions. [2023-12-21 14:37:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:37:35,951 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 [2023-12-21 14:37:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:35,955 INFO L225 Difference]: With dead ends: 779 [2023-12-21 14:37:35,955 INFO L226 Difference]: Without dead ends: 777 [2023-12-21 14:37:35,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:37:35,956 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 644 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 473 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:35,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1624 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1596 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2023-12-21 14:37:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-12-21 14:37:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 767. [2023-12-21 14:37:36,012 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) [2023-12-21 14:37:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1194 transitions. [2023-12-21 14:37:36,015 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1194 transitions. Word has length 448 [2023-12-21 14:37:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:36,015 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1194 transitions. [2023-12-21 14:37:36,015 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) [2023-12-21 14:37:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1194 transitions. [2023-12-21 14:37:36,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2023-12-21 14:37:36,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:36,020 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] [2023-12-21 14:37:36,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 14:37:36,021 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:36,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:36,021 INFO L85 PathProgramCache]: Analyzing trace with hash 628221469, now seen corresponding path program 1 times [2023-12-21 14:37:36,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:36,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151285677] [2023-12-21 14:37:36,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:36,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:37:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:37:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:37:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:37:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:37:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:37:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:37:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:37:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:37:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:37:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:37:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:37:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:37:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:37:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:37:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:37:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:37:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:37:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:37:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:37:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:37:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:37:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:37:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:37:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:37:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:37:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:37:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:37:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:37:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:37:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:37:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:37:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:37:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:37:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:37:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:37:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:37:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:37:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:37:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:37:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:37:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:37:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:37:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:37:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:37:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:37:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:37:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:37:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:37:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:37:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:37:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:37:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:37:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:37:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:37:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:37:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7276 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7272 trivial. 0 not checked. [2023-12-21 14:37:37,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:37,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151285677] [2023-12-21 14:37:37,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151285677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:37,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:37,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:37:37,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375878904] [2023-12-21 14:37:37,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:37,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:37:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:37:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:37:37,691 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) [2023-12-21 14:37:41,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:45,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:37:49,836 INFO L93 Difference]: Finished difference Result 783 states and 1213 transitions. [2023-12-21 14:37:49,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:37:49,837 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 [2023-12-21 14:37:49,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:37:49,840 INFO L225 Difference]: With dead ends: 783 [2023-12-21 14:37:49,840 INFO L226 Difference]: Without dead ends: 781 [2023-12-21 14:37:49,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:37:49,841 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 644 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 473 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:37:49,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1624 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1596 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2023-12-21 14:37:49,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-12-21 14:37:49,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 771. [2023-12-21 14:37:49,882 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) [2023-12-21 14:37:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1197 transitions. [2023-12-21 14:37:49,884 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1197 transitions. Word has length 453 [2023-12-21 14:37:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:37:49,885 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1197 transitions. [2023-12-21 14:37:49,885 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) [2023-12-21 14:37:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1197 transitions. [2023-12-21 14:37:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 14:37:49,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:37:49,889 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] [2023-12-21 14:37:49,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 14:37:49,890 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:37:49,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:37:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1074887137, now seen corresponding path program 1 times [2023-12-21 14:37:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:37:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704369602] [2023-12-21 14:37:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:37:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:37:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:37:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:37:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:37:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 14:37:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 14:37:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 14:37:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 14:37:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 14:37:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 14:37:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 14:37:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 14:37:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-12-21 14:37:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-12-21 14:37:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-12-21 14:37:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-12-21 14:37:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-12-21 14:37:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-12-21 14:37:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 14:37:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-12-21 14:37:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-12-21 14:37:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-12-21 14:37:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-12-21 14:37:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-12-21 14:37:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 14:37:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-12-21 14:37:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-12-21 14:37:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-12-21 14:37:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-12-21 14:37:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 14:37:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-12-21 14:37:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-21 14:37:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-12-21 14:37:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2023-12-21 14:37:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 14:37:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-12-21 14:37:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 14:37:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-21 14:37:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2023-12-21 14:37:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2023-12-21 14:37:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-21 14:37:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 14:37:51,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-12-21 14:37:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-12-21 14:37:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 14:37:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-21 14:37:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-21 14:37:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-21 14:37:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2023-12-21 14:37:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2023-12-21 14:37:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2023-12-21 14:37:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2023-12-21 14:37:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-21 14:37:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 14:37:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-21 14:37:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-21 14:37:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2023-12-21 14:37:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2023-12-21 14:37:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-21 14:37:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:37:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 7286 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7280 trivial. 0 not checked. [2023-12-21 14:37:51,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:37:51,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704369602] [2023-12-21 14:37:51,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704369602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:37:51,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:37:51,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 14:37:51,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480436762] [2023-12-21 14:37:51,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:37:51,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 14:37:51,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:37:51,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 14:37:51,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 14:37:51,163 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) [2023-12-21 14:37:55,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:37:59,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:03,279 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 [] [2023-12-21 14:38:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:38:06,343 INFO L93 Difference]: Finished difference Result 2131 states and 3427 transitions. [2023-12-21 14:38:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 14:38:06,343 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 [2023-12-21 14:38:06,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:38:06,350 INFO L225 Difference]: With dead ends: 2131 [2023-12-21 14:38:06,350 INFO L226 Difference]: Without dead ends: 1465 [2023-12-21 14:38:06,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-21 14:38:06,353 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 712 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 606 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-21 14:38:06,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 1074 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 887 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2023-12-21 14:38:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2023-12-21 14:38:06,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 775. [2023-12-21 14:38:06,417 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) [2023-12-21 14:38:06,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1205 transitions. [2023-12-21 14:38:06,420 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1205 transitions. Word has length 459 [2023-12-21 14:38:06,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:38:06,421 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1205 transitions. [2023-12-21 14:38:06,421 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) [2023-12-21 14:38:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1205 transitions. [2023-12-21 14:38:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-21 14:38:06,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:38:06,426 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] [2023-12-21 14:38:06,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 14:38:06,426 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:38:06,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:38:06,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1839086588, now seen corresponding path program 1 times [2023-12-21 14:38:06,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:38:06,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918000003] [2023-12-21 14:38:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:38:06,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:38:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:38:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:38:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:38:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:38:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:38:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:38:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:38:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:38:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:38:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:38:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:38:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:38:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:38:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:38:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:38:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:38:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:38:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:38:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:38:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:38:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:38:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:38:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:38:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:38:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:38:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:38:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:38:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:38:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:38:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:38:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:38:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:38:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:38:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:38:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:38:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:38:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:38:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:38:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:38:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:38:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:38:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:38:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:38:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:38:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:38:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:38:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:38:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:38:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:38:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:38:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:38:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:38:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:38:08,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:38:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:38:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:38:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:38:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 14:38:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 7286 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7280 trivial. 0 not checked. [2023-12-21 14:38:08,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:38:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918000003] [2023-12-21 14:38:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918000003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:38:08,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:38:08,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:38:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013964570] [2023-12-21 14:38:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:38:08,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 14:38:08,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:38:08,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 14:38:08,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:38:08,321 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) [2023-12-21 14:38:12,446 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 [] [2023-12-21 14:38:16,453 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 [] [2023-12-21 14:38:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:38:21,851 INFO L93 Difference]: Finished difference Result 791 states and 1224 transitions. [2023-12-21 14:38:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:38:21,852 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 [2023-12-21 14:38:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:38:21,855 INFO L225 Difference]: With dead ends: 791 [2023-12-21 14:38:21,855 INFO L226 Difference]: Without dead ends: 789 [2023-12-21 14:38:21,856 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 [2023-12-21 14:38:21,856 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 898 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 679 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-21 14:38:21,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 1624 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [679 Valid, 1596 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2023-12-21 14:38:21,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-12-21 14:38:21,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 779. [2023-12-21 14:38:21,918 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) [2023-12-21 14:38:21,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1208 transitions. [2023-12-21 14:38:21,921 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1208 transitions. Word has length 458 [2023-12-21 14:38:21,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:38:21,922 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1208 transitions. [2023-12-21 14:38:21,922 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) [2023-12-21 14:38:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1208 transitions. [2023-12-21 14:38:21,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2023-12-21 14:38:21,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:38:21,927 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] [2023-12-21 14:38:21,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 14:38:21,927 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:38:21,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:38:21,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1944021443, now seen corresponding path program 1 times [2023-12-21 14:38:21,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:38:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353070741] [2023-12-21 14:38:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:38:21,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:38:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:38:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:38:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:38:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:38:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:38:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:38:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:38:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:38:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:38:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:38:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:38:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:38:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:38:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:38:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:38:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:38:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:38:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:38:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:38:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:38:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:38:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:38:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:38:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:38:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:38:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:38:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:38:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:38:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:38:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:38:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:38:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:38:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:38:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:38:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:38:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:38:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:38:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:38:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:38:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:38:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:38:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:38:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:38:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:38:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:38:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:38:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:38:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:38:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:38:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:38:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:38:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:38:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:38:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:38:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:38:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:38:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:38:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 14:38:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 14:38:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:23,758 INFO L134 CoverageAnalysis]: Checked inductivity of 7300 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7292 trivial. 0 not checked. [2023-12-21 14:38:23,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:38:23,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353070741] [2023-12-21 14:38:23,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353070741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:38:23,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:38:23,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:38:23,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552551765] [2023-12-21 14:38:23,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:38:23,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 14:38:23,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:38:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 14:38:23,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:38:23,760 INFO L87 Difference]: Start difference. First operand 779 states and 1208 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, (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) [2023-12-21 14:38:27,888 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 [] [2023-12-21 14:38:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:38:32,700 INFO L93 Difference]: Finished difference Result 795 states and 1227 transitions. [2023-12-21 14:38:32,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:38:32,701 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, (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 463 [2023-12-21 14:38:32,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:38:32,705 INFO L225 Difference]: With dead ends: 795 [2023-12-21 14:38:32,705 INFO L226 Difference]: Without dead ends: 793 [2023-12-21 14:38:32,705 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 [2023-12-21 14:38:32,706 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 947 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 935 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:38:32,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 1603 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1450 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-12-21 14:38:32,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-12-21 14:38:32,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 783. [2023-12-21 14:38:32,785 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) [2023-12-21 14:38:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1211 transitions. [2023-12-21 14:38:32,787 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1211 transitions. Word has length 463 [2023-12-21 14:38:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:38:32,788 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1211 transitions. [2023-12-21 14:38:32,788 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, (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) [2023-12-21 14:38:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1211 transitions. [2023-12-21 14:38:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-12-21 14:38:32,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:38:32,793 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] [2023-12-21 14:38:32,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 14:38:32,793 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:38:32,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:38:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1271507100, now seen corresponding path program 1 times [2023-12-21 14:38:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:38:32,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387271399] [2023-12-21 14:38:32,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:38:32,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:38:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:38:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:38:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:38:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:38:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:38:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:38:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:38:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:38:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:38:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:38:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:38:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:38:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:38:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:38:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:38:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:38:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:38:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:38:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:38:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:38:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:38:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:38:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:38:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:38:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:38:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:38:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:38:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:38:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:38:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:38:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:38:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:38:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:38:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:38:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:38:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:38:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:38:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:38:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:38:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:38:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:38:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:38:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:38:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:38:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:38:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:38:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:38:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:38:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:38:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:38:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:38:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:38:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:38:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:38:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:38:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:38:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:38:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 14:38:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 14:38:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:38:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7318 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7308 trivial. 0 not checked. [2023-12-21 14:38:34,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:38:34,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387271399] [2023-12-21 14:38:34,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387271399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:38:34,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:38:34,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 14:38:34,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038682270] [2023-12-21 14:38:34,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:38:34,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 14:38:34,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:38:34,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 14:38:34,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-21 14:38:34,597 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) [2023-12-21 14:38:38,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:42,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:47,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:38:47,910 INFO L93 Difference]: Finished difference Result 799 states and 1230 transitions. [2023-12-21 14:38:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:38:47,911 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 [2023-12-21 14:38:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:38:47,914 INFO L225 Difference]: With dead ends: 799 [2023-12-21 14:38:47,914 INFO L226 Difference]: Without dead ends: 795 [2023-12-21 14:38:47,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-12-21 14:38:47,915 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 898 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 677 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:38:47,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 1624 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 1596 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2023-12-21 14:38:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-12-21 14:38:47,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 785. [2023-12-21 14:38:47,975 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) [2023-12-21 14:38:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1212 transitions. [2023-12-21 14:38:47,977 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1212 transitions. Word has length 468 [2023-12-21 14:38:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:38:47,978 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1212 transitions. [2023-12-21 14:38:47,978 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) [2023-12-21 14:38:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1212 transitions. [2023-12-21 14:38:47,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2023-12-21 14:38:47,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:38:47,983 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] [2023-12-21 14:38:47,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 14:38:47,983 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:38:47,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:38:47,983 INFO L85 PathProgramCache]: Analyzing trace with hash -348434851, now seen corresponding path program 1 times [2023-12-21 14:38:47,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:38:47,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265965428] [2023-12-21 14:38:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:38:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:38:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:38:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:38:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:38:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:38:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 14:38:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 14:38:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 14:38:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 14:38:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 14:38:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 14:38:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 14:38:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-12-21 14:38:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-12-21 14:38:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 14:38:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-12-21 14:38:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-12-21 14:38:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-12-21 14:38:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-12-21 14:38:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-12-21 14:38:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-12-21 14:38:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-12-21 14:38:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-12-21 14:38:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-12-21 14:38:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-12-21 14:38:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-12-21 14:38:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-12-21 14:38:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-12-21 14:38:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-12-21 14:38:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-12-21 14:38:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-12-21 14:38:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-12-21 14:38:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-12-21 14:38:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2023-12-21 14:38:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 14:38:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-12-21 14:38:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-12-21 14:38:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2023-12-21 14:38:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-12-21 14:38:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-12-21 14:38:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 14:38:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 14:38:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2023-12-21 14:38:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 14:38:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 14:38:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 14:38:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2023-12-21 14:38:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 14:38:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 14:38:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 14:38:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 14:38:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 14:38:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 14:38:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 14:38:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 14:38:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 14:38:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 14:38:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:38:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 14:38:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 14:38:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:38:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-21 14:38:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:38:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 7340 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7328 trivial. 0 not checked. [2023-12-21 14:38:49,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:38:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265965428] [2023-12-21 14:38:49,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265965428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:38:49,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 14:38:49,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 14:38:49,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970567170] [2023-12-21 14:38:49,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:38:49,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 14:38:49,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:38:49,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 14:38:49,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 14:38:49,482 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) [2023-12-21 14:38:53,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:38:57,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:02,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:39:02,697 INFO L93 Difference]: Finished difference Result 795 states and 1226 transitions. [2023-12-21 14:39:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 14:39:02,697 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 [2023-12-21 14:39:02,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:39:02,700 INFO L225 Difference]: With dead ends: 795 [2023-12-21 14:39:02,700 INFO L226 Difference]: Without dead ends: 653 [2023-12-21 14:39:02,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2023-12-21 14:39:02,701 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 638 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 473 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s 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, 12.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:39:02,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1641 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1577 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2023-12-21 14:39:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-12-21 14:39:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 645. [2023-12-21 14:39:02,748 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) [2023-12-21 14:39:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1016 transitions. [2023-12-21 14:39:02,750 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1016 transitions. Word has length 473 [2023-12-21 14:39:02,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:39:02,750 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 1016 transitions. [2023-12-21 14:39:02,750 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) [2023-12-21 14:39:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1016 transitions. [2023-12-21 14:39:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-21 14:39:02,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:39:02,755 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] [2023-12-21 14:39:02,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 14:39:02,755 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:39:02,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:39:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1090686022, now seen corresponding path program 1 times [2023-12-21 14:39:02,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:39:02,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655340448] [2023-12-21 14:39:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:02,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:39:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:39:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:39:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 14:39:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:39:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 14:39:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 14:39:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:39:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:39:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 14:39:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:39:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:39:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:39:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:39:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:39:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:39:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:39:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:39:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:39:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 14:39:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 14:39:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 14:39:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 14:39:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 14:39:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:39:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:39:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:39:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:39:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:39:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:39:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:39:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:39:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 14:39:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 14:39:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 14:39:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 14:39:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 14:39:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 14:39:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 14:39:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 14:39:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 14:39:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 14:39:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 14:39:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 14:39:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 14:39:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 14:39:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-21 14:39:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 14:39:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 14:39:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 14:39:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-21 14:39:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 14:39:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 14:39:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 14:39:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-21 14:39:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:39:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 14:39:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 14:39:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 14:39:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 14:39:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-21 14:39:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 14:39:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8181 trivial. 0 not checked. [2023-12-21 14:39:04,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:39:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655340448] [2023-12-21 14:39:04,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655340448] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:39:04,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86081247] [2023-12-21 14:39:04,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:04,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:39:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:39:04,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:39:04,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 14:39:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:06,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 3823 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 14:39:06,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:39:06,222 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 [2023-12-21 14:39:06,571 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 [2023-12-21 14:39:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 1040 proven. 4 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2023-12-21 14:39:06,710 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:39:06,869 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 [2023-12-21 14:39:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8180 trivial. 0 not checked. [2023-12-21 14:39:07,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86081247] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:39:07,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:39:07,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2023-12-21 14:39:07,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245605621] [2023-12-21 14:39:07,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:39:07,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 14:39:07,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:39:07,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 14:39:07,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-21 14:39:07,438 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) [2023-12-21 14:39:11,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:15,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:23,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:27,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:31,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:35,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:39,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:44,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:39:44,380 INFO L93 Difference]: Finished difference Result 1391 states and 2259 transitions. [2023-12-21 14:39:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 14:39:44,381 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 [2023-12-21 14:39:44,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:39:44,387 INFO L225 Difference]: With dead ends: 1391 [2023-12-21 14:39:44,387 INFO L226 Difference]: Without dead ends: 1267 [2023-12-21 14:39:44,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1165 GetRequests, 1140 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2023-12-21 14:39:44,389 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1325 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 1603 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1603 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2023-12-21 14:39:44,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1328 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1603 Valid, 1464 Invalid, 8 Unknown, 0 Unchecked, 35.7s Time] [2023-12-21 14:39:44,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-12-21 14:39:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1221. [2023-12-21 14:39:44,499 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) [2023-12-21 14:39:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1995 transitions. [2023-12-21 14:39:44,503 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1995 transitions. Word has length 505 [2023-12-21 14:39:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:39:44,503 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 1995 transitions. [2023-12-21 14:39:44,503 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) [2023-12-21 14:39:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1995 transitions. [2023-12-21 14:39:44,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-21 14:39:44,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:39:44,510 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] [2023-12-21 14:39:44,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-21 14:39:44,726 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,SelfDestructingSolverStorable14 [2023-12-21 14:39:44,727 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:39:44,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:39:44,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1574900887, now seen corresponding path program 1 times [2023-12-21 14:39:44,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:39:44,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652198546] [2023-12-21 14:39:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:44,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:39:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:39:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:39:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 14:39:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 14:39:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 14:39:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 14:39:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 14:39:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 14:39:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 14:39:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:39:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-12-21 14:39:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-12-21 14:39:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-12-21 14:39:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-21 14:39:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-12-21 14:39:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-12-21 14:39:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-12-21 14:39:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-12-21 14:39:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-12-21 14:39:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-12-21 14:39:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 14:39:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-12-21 14:39:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-12-21 14:39:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-12-21 14:39:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:39:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:39:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:39:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:39:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:39:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:39:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:39:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:39:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 14:39:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 14:39:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 14:39:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 14:39:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 14:39:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 14:39:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 14:39:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 14:39:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 14:39:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 14:39:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 14:39:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 14:39:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 14:39:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 14:39:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-21 14:39:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 14:39:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 14:39:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 14:39:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-21 14:39:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 14:39:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 14:39:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 14:39:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-21 14:39:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:39:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 14:39:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 14:39:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 14:39:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 14:39:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-21 14:39:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 14:39:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8181 trivial. 0 not checked. [2023-12-21 14:39:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:39:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652198546] [2023-12-21 14:39:46,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652198546] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:39:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494093490] [2023-12-21 14:39:46,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:39:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:39:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:39:46,513 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:39:46,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 14:39:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:39:48,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 3820 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-21 14:39:48,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:39:48,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-21 14:39:48,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:39:49,000 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 30 treesize of output 32 [2023-12-21 14:39:49,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:39:49,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 10 [2023-12-21 14:39:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 8184 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 7940 trivial. 0 not checked. [2023-12-21 14:39:49,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:39:49,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494093490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:39:49,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:39:49,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 15 [2023-12-21 14:39:49,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010973816] [2023-12-21 14:39:49,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:39:49,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 14:39:49,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:39:49,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 14:39:49,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-12-21 14:39:49,297 INFO L87 Difference]: Start difference. First operand 1221 states and 1995 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 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) [2023-12-21 14:39:53,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:39:57,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:01,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:05,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:09,474 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 [] [2023-12-21 14:40:14,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:40:14,293 INFO L93 Difference]: Finished difference Result 2158 states and 3526 transitions. [2023-12-21 14:40:14,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 14:40:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 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 [2023-12-21 14:40:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:40:14,303 INFO L225 Difference]: With dead ends: 2158 [2023-12-21 14:40:14,303 INFO L226 Difference]: Without dead ends: 923 [2023-12-21 14:40:14,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 631 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-12-21 14:40:14,307 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 742 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 609 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 2953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2023-12-21 14:40:14,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 2808 Invalid, 2953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 2339 Invalid, 5 Unknown, 0 Unchecked, 24.5s Time] [2023-12-21 14:40:14,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-21 14:40:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 902. [2023-12-21 14:40:14,409 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) [2023-12-21 14:40:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1404 transitions. [2023-12-21 14:40:14,412 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1404 transitions. Word has length 505 [2023-12-21 14:40:14,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:40:14,412 INFO L495 AbstractCegarLoop]: Abstraction has 902 states and 1404 transitions. [2023-12-21 14:40:14,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 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) [2023-12-21 14:40:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1404 transitions. [2023-12-21 14:40:14,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-21 14:40:14,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:40:14,418 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] [2023-12-21 14:40:14,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 14:40:14,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:40:14,636 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:40:14,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:40:14,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1945907664, now seen corresponding path program 1 times [2023-12-21 14:40:14,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:40:14,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084916635] [2023-12-21 14:40:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:40:14,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:40:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:15,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:40:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:40:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:40:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:40:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:40:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 14:40:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 14:40:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:40:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 14:40:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 14:40:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 14:40:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:40:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:40:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 14:40:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:40:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:40:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 14:40:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 14:40:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 14:40:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-21 14:40:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 14:40:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-21 14:40:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-21 14:40:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-21 14:40:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 14:40:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 14:40:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-21 14:40:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 14:40:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-21 14:40:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 14:40:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 14:40:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-21 14:40:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-21 14:40:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-21 14:40:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 14:40:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-21 14:40:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-21 14:40:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-21 14:40:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-21 14:40:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-21 14:40:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-21 14:40:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-21 14:40:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-21 14:40:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-21 14:40:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-21 14:40:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-21 14:40:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-21 14:40:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-21 14:40:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:40:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-21 14:40:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2023-12-21 14:40:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 14:40:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-21 14:40:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-21 14:40:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-21 14:40:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 14:40:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2023-12-21 14:40:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 14:40:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 14:40:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2023-12-21 14:40:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-21 14:40:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-21 14:40:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-21 14:40:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-21 14:40:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-21 14:40:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2023-12-21 14:40:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-21 14:40:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-21 14:40:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9789 trivial. 0 not checked. [2023-12-21 14:40:16,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:40:16,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084916635] [2023-12-21 14:40:16,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084916635] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:40:16,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751587973] [2023-12-21 14:40:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:40:16,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:40:16,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:40:16,565 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 14:40:16,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 14:40:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:40:18,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-21 14:40:18,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:40:18,444 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 11 treesize of output 7 [2023-12-21 14:40:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 2288 proven. 74 refuted. 0 times theorem prover too weak. 7430 trivial. 0 not checked. [2023-12-21 14:40:19,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:40:20,611 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 230 refuted. 0 times theorem prover too weak. 9562 trivial. 0 not checked. [2023-12-21 14:40:20,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751587973] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:40:20,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:40:20,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2023-12-21 14:40:20,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715469101] [2023-12-21 14:40:20,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:40:20,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-21 14:40:20,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:40:20,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-21 14:40:20,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2023-12-21 14:40:20,614 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) [2023-12-21 14:40:24,863 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 [] [2023-12-21 14:40:28,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:32,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:36,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:40,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:44,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:48,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:52,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:40:56,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:00,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:04,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:12,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:16,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:20,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:25,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:29,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:41:33,025 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 [] [2023-12-21 14:41:51,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:41:51,042 INFO L93 Difference]: Finished difference Result 2552 states and 4076 transitions. [2023-12-21 14:41:51,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-12-21 14:41:51,043 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 [2023-12-21 14:41:51,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:41:51,050 INFO L225 Difference]: With dead ends: 2552 [2023-12-21 14:41:51,050 INFO L226 Difference]: Without dead ends: 1742 [2023-12-21 14:41:51,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1376 GetRequests, 1288 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2431 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=1608, Invalid=6402, Unknown=0, NotChecked=0, Total=8010 [2023-12-21 14:41:51,055 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3386 mSDsluCounter, 3447 mSDsCounter, 0 mSdLazyCounter, 6277 mSolverCounterSat, 2793 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3454 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 9088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2793 IncrementalHoareTripleChecker+Valid, 6277 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.0s IncrementalHoareTripleChecker+Time [2023-12-21 14:41:51,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3454 Valid, 4066 Invalid, 9088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2793 Valid, 6277 Invalid, 18 Unknown, 0 Unchecked, 83.0s Time] [2023-12-21 14:41:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2023-12-21 14:41:51,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1416. [2023-12-21 14:41:51,261 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) [2023-12-21 14:41:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2263 transitions. [2023-12-21 14:41:51,265 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2263 transitions. Word has length 568 [2023-12-21 14:41:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:41:51,265 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 2263 transitions. [2023-12-21 14:41:51,265 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) [2023-12-21 14:41:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2263 transitions. [2023-12-21 14:41:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-21 14:41:51,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:41:51,273 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] [2023-12-21 14:41:51,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 14:41:51,484 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,SelfDestructingSolverStorable16 [2023-12-21 14:41:51,485 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:41:51,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:41:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash 264983694, now seen corresponding path program 1 times [2023-12-21 14:41:51,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:41:51,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504558930] [2023-12-21 14:41:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:41:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:41:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:41:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:41:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:41:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:41:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:41:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 14:41:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 14:41:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:41:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 14:41:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 14:41:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 14:41:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:41:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:41:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 14:41:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 14:41:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:41:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 14:41:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-12-21 14:41:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 14:41:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-12-21 14:41:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 14:41:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-12-21 14:41:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-12-21 14:41:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-12-21 14:41:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 14:41:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 14:41:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2023-12-21 14:41:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-12-21 14:41:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2023-12-21 14:41:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 14:41:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 14:41:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-12-21 14:41:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-12-21 14:41:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-12-21 14:41:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-12-21 14:41:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-21 14:41:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-12-21 14:41:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-21 14:41:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-21 14:41:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-12-21 14:41:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-21 14:41:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-12-21 14:41:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2023-12-21 14:41:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-21 14:41:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-21 14:41:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-21 14:41:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-21 14:41:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-21 14:41:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 14:41:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-21 14:41:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2023-12-21 14:41:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 14:41:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-21 14:41:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-21 14:41:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-21 14:41:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 14:41:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2023-12-21 14:41:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 14:41:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 14:41:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2023-12-21 14:41:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-21 14:41:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-21 14:41:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-21 14:41:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-21 14:41:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2023-12-21 14:41:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2023-12-21 14:41:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-21 14:41:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2023-12-21 14:41:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9789 trivial. 0 not checked. [2023-12-21 14:41:55,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:41:55,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504558930] [2023-12-21 14:41:55,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504558930] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:41:55,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951775808] [2023-12-21 14:41:55,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:41:55,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:41:55,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:41:55,213 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) [2023-12-21 14:41:55,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 14:41:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:41:57,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 4129 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 14:41:57,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:41:57,815 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 [2023-12-21 14:42:05,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 14:42:05,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:42:05,721 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 [2023-12-21 14:42:07,197 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-12-21 14:42:07,197 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 [2023-12-21 14:42:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 2496 proven. 4 refuted. 0 times theorem prover too weak. 7292 trivial. 0 not checked. [2023-12-21 14:42:52,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:42:52,575 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 [2023-12-21 14:42:52,581 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 [2023-12-21 14:42:53,237 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 [2023-12-21 14:42:53,242 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 [2023-12-21 14:42:53,343 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 [2023-12-21 14:42:53,348 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 [2023-12-21 14:42:53,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9788 trivial. 0 not checked. [2023-12-21 14:42:53,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951775808] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:42:53,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:42:53,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 9] total 40 [2023-12-21 14:42:53,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969084645] [2023-12-21 14:42:53,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:42:53,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-21 14:42:53,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:42:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-21 14:42:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1405, Unknown=5, NotChecked=0, Total=1560 [2023-12-21 14:42:53,635 INFO L87 Difference]: Start difference. First operand 1416 states and 2263 transitions. Second operand has 40 states, 37 states have (on average 5.891891891891892) internal successors, (218), 36 states have internal predecessors, (218), 19 states have call successors, (157), 13 states have call predecessors, (157), 14 states have return successors, (155), 17 states have call predecessors, (155), 19 states have call successors, (155) [2023-12-21 14:42:57,947 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 [] [2023-12-21 14:43:01,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:05,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:09,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:13,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:18,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:22,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:26,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:30,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:34,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:38,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:42,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:46,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:43:50,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:54,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:43:58,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:02,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:06,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:44:10,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:14,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:18,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:22,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:26,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:30,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:34,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:38,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:42,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:46,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:50,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 14:44:54,209 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 [] [2023-12-21 14:45:14,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:45:14,852 INFO L93 Difference]: Finished difference Result 2586 states and 4213 transitions. [2023-12-21 14:45:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 14:45:14,853 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 37 states have (on average 5.891891891891892) internal successors, (218), 36 states have internal predecessors, (218), 19 states have call successors, (157), 13 states have call predecessors, (157), 14 states have return successors, (155), 17 states have call predecessors, (155), 19 states have call successors, (155) Word has length 568 [2023-12-21 14:45:14,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:45:14,859 INFO L225 Difference]: With dead ends: 2586 [2023-12-21 14:45:14,859 INFO L226 Difference]: Without dead ends: 1546 [2023-12-21 14:45:14,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1351 GetRequests, 1267 SyntacticMatches, 7 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1545 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=977, Invalid=5180, Unknown=5, NotChecked=0, Total=6162 [2023-12-21 14:45:14,863 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2782 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 7371 mSolverCounterSat, 3228 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 10629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3228 IncrementalHoareTripleChecker+Valid, 7371 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.6s IncrementalHoareTripleChecker+Time [2023-12-21 14:45:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2782 Valid, 4556 Invalid, 10629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3228 Valid, 7371 Invalid, 30 Unknown, 0 Unchecked, 134.6s Time] [2023-12-21 14:45:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2023-12-21 14:45:15,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1450. [2023-12-21 14:45:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 889 states have (on average 1.4319460067491563) internal successors, (1273), 899 states have internal predecessors, (1273), 488 states have call successors, (488), 57 states have call predecessors, (488), 72 states have return successors, (578), 497 states have call predecessors, (578), 487 states have call successors, (578) [2023-12-21 14:45:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2339 transitions. [2023-12-21 14:45:15,116 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2339 transitions. Word has length 568 [2023-12-21 14:45:15,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:45:15,116 INFO L495 AbstractCegarLoop]: Abstraction has 1450 states and 2339 transitions. [2023-12-21 14:45:15,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 37 states have (on average 5.891891891891892) internal successors, (218), 36 states have internal predecessors, (218), 19 states have call successors, (157), 13 states have call predecessors, (157), 14 states have return successors, (155), 17 states have call predecessors, (155), 19 states have call successors, (155) [2023-12-21 14:45:15,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2339 transitions. [2023-12-21 14:45:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2023-12-21 14:45:15,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:45:15,124 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 40, 40, 12, 12, 12, 12, 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] [2023-12-21 14:45:15,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 14:45:15,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 14:45:15,340 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:45:15,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:45:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1770845755, now seen corresponding path program 1 times [2023-12-21 14:45:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:45:15,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793704851] [2023-12-21 14:45:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:45:15,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:45:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:45:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:45:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:45:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:45:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:45:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 14:45:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 14:45:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:45:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 14:45:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 14:45:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 14:45:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:45:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:45:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 14:45:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 14:45:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 14:45:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:45:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:45:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:45:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:45:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:45:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:45:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:45:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:45:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:45:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 14:45:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 14:45:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 14:45:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 14:45:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 14:45:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 14:45:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 14:45:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 14:45:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 14:45:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 14:45:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 14:45:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 14:45:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 14:45:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 14:45:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-21 14:45:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 14:45:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 14:45:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 14:45:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-21 14:45:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 14:45:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 14:45:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 14:45:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-21 14:45:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:45:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 14:45:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 14:45:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 14:45:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 14:45:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-21 14:45:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 14:45:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 14:45:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2023-12-21 14:45:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2023-12-21 14:45:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 14:45:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 14:45:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2023-12-21 14:45:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2023-12-21 14:45:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2023-12-21 14:45:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2023-12-21 14:45:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2023-12-21 14:45:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561 [2023-12-21 14:45:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2023-12-21 14:45:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2023-12-21 14:45:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2023-12-21 14:45:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10095 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10092 trivial. 0 not checked. [2023-12-21 14:45:16,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:45:16,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793704851] [2023-12-21 14:45:16,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793704851] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:45:16,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381561059] [2023-12-21 14:45:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:45:16,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:45:16,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:45:16,483 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) [2023-12-21 14:45:16,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 14:45:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:18,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 4334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 14:45:18,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:45:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 10095 backedges. 2244 proven. 0 refuted. 0 times theorem prover too weak. 7851 trivial. 0 not checked. [2023-12-21 14:45:18,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 14:45:18,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381561059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 14:45:18,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 14:45:18,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-21 14:45:18,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058617122] [2023-12-21 14:45:18,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 14:45:18,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 14:45:18,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:45:18,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 14:45:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:45:18,654 INFO L87 Difference]: Start difference. First operand 1450 states and 2339 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-12-21 14:45:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:45:18,951 INFO L93 Difference]: Finished difference Result 2730 states and 4571 transitions. [2023-12-21 14:45:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 14:45:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 589 [2023-12-21 14:45:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:45:18,957 INFO L225 Difference]: With dead ends: 2730 [2023-12-21 14:45:18,958 INFO L226 Difference]: Without dead ends: 1458 [2023-12-21 14:45:18,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 14:45:18,962 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 14:45:18,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1036 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 14:45:18,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2023-12-21 14:45:19,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2023-12-21 14:45:19,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 897 states have (on average 1.4280936454849498) internal successors, (1281), 907 states have internal predecessors, (1281), 488 states have call successors, (488), 57 states have call predecessors, (488), 72 states have return successors, (578), 497 states have call predecessors, (578), 487 states have call successors, (578) [2023-12-21 14:45:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2347 transitions. [2023-12-21 14:45:19,204 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2347 transitions. Word has length 589 [2023-12-21 14:45:19,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:45:19,204 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 2347 transitions. [2023-12-21 14:45:19,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2023-12-21 14:45:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2347 transitions. [2023-12-21 14:45:19,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2023-12-21 14:45:19,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:45:19,212 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 40, 40, 12, 12, 12, 12, 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] [2023-12-21 14:45:19,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 14:45:19,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:45:19,428 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:45:19,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:45:19,429 INFO L85 PathProgramCache]: Analyzing trace with hash 162015225, now seen corresponding path program 1 times [2023-12-21 14:45:19,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:45:19,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218780268] [2023-12-21 14:45:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:45:19,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:45:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:45:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:45:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 14:45:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 14:45:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 14:45:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 14:45:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 14:45:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 14:45:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 14:45:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 14:45:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 14:45:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 14:45:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 14:45:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 14:45:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 14:45:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 14:45:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 14:45:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 14:45:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 14:45:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-12-21 14:45:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-12-21 14:45:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 14:45:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-12-21 14:45:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2023-12-21 14:45:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2023-12-21 14:45:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-12-21 14:45:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 14:45:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-12-21 14:45:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2023-12-21 14:45:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-12-21 14:45:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 14:45:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 14:45:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 14:45:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-12-21 14:45:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 14:45:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2023-12-21 14:45:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 14:45:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 14:45:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 14:45:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 14:45:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2023-12-21 14:45:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 14:45:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 14:45:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 14:45:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-21 14:45:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 14:45:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 14:45:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 14:45:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2023-12-21 14:45:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 14:45:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 14:45:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 14:45:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 14:45:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 14:45:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-21 14:45:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 14:45:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 14:45:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2023-12-21 14:45:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2023-12-21 14:45:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 14:45:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 14:45:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2023-12-21 14:45:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2023-12-21 14:45:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2023-12-21 14:45:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2023-12-21 14:45:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 555 [2023-12-21 14:45:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561 [2023-12-21 14:45:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2023-12-21 14:45:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2023-12-21 14:45:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2023-12-21 14:45:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10095 backedges. 20 proven. 46 refuted. 0 times theorem prover too weak. 10029 trivial. 0 not checked. [2023-12-21 14:45:23,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 14:45:23,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218780268] [2023-12-21 14:45:23,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218780268] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 14:45:23,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489661780] [2023-12-21 14:45:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:45:23,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:45:23,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 14:45:23,696 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) [2023-12-21 14:45:23,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 14:45:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:45:25,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 4337 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-21 14:45:25,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 14:45:26,118 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 [2023-12-21 14:45:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-21 14:45:32,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 14:45:32,732 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 [2023-12-21 14:45:33,075 INFO L349 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2023-12-21 14:45:33,076 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 [2023-12-21 14:45:35,774 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 [2023-12-21 14:45:35,823 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-21 14:45:35,824 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 [2023-12-21 14:45:35,834 INFO L134 CoverageAnalysis]: Checked inductivity of 10095 backedges. 2688 proven. 51 refuted. 0 times theorem prover too weak. 7356 trivial. 0 not checked. [2023-12-21 14:45:35,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 14:45:35,969 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 [2023-12-21 14:45:36,201 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 [2023-12-21 14:45:37,048 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 [2023-12-21 14:45:37,241 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 [2023-12-21 14:45:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 10095 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 10084 trivial. 0 not checked. [2023-12-21 14:45:37,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489661780] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 14:45:37,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 14:45:37,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 13] total 38 [2023-12-21 14:45:37,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159541989] [2023-12-21 14:45:37,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 14:45:37,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-21 14:45:37,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 14:45:37,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-21 14:45:37,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1257, Unknown=3, NotChecked=0, Total=1406 [2023-12-21 14:45:37,716 INFO L87 Difference]: Start difference. First operand 1458 states and 2347 transitions. Second operand has 38 states, 34 states have (on average 6.029411764705882) internal successors, (205), 30 states have internal predecessors, (205), 18 states have call successors, (161), 13 states have call predecessors, (161), 13 states have return successors, (157), 16 states have call predecessors, (157), 18 states have call successors, (157) [2023-12-21 14:45:42,145 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] [2023-12-21 14:45:46,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:45:50,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:45:54,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:45:58,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:02,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:06,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:10,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:14,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:18,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:22,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:26,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:30,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:34,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:38,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:42,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:46,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:50,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-21 14:46:54,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:46:58,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:02,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:06,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:10,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:14,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:18,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:27,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-21 14:47:32,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:38,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:41,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:46,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:49,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:47:56,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:00,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:02,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:04,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:28,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:29,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:48:55,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-12-21 14:48:59,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:01,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:32,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:36,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:37,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:46,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:48,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:51,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:53,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:49:57,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:50:10,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-21 14:50:25,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 14:50:25,236 INFO L93 Difference]: Finished difference Result 6143 states and 9644 transitions. [2023-12-21 14:50:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-12-21 14:50:25,236 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 6.029411764705882) internal successors, (205), 30 states have internal predecessors, (205), 18 states have call successors, (161), 13 states have call predecessors, (161), 13 states have return successors, (157), 16 states have call predecessors, (157), 18 states have call successors, (157) Word has length 589 [2023-12-21 14:50:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 14:50:25,252 INFO L225 Difference]: With dead ends: 6143 [2023-12-21 14:50:25,252 INFO L226 Difference]: Without dead ends: 4625 [2023-12-21 14:50:25,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1512 GetRequests, 1350 SyntacticMatches, 4 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8183 ImplicationChecksByTransitivity, 85.7s TimeCoverageRelationStatistics Valid=2926, Invalid=22490, Unknown=24, NotChecked=0, Total=25440 [2023-12-21 14:50:25,262 INFO L413 NwaCegarLoop]: 1234 mSDtfsCounter, 5971 mSDsluCounter, 10311 mSDsCounter, 0 mSdLazyCounter, 29637 mSolverCounterSat, 7978 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 206.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5971 SdHoareTripleChecker+Valid, 11545 SdHoareTripleChecker+Invalid, 37662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7978 IncrementalHoareTripleChecker+Valid, 29637 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.9s IncrementalHoareTripleChecker+Time [2023-12-21 14:50:25,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5971 Valid, 11545 Invalid, 37662 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7978 Valid, 29637 Invalid, 47 Unknown, 0 Unchecked, 209.9s Time] [2023-12-21 14:50:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4625 states. [2023-12-21 14:50:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4625 to 3539. [2023-12-21 14:50:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3539 states, 2064 states have (on average 1.2088178294573644) internal successors, (2495), 2088 states have internal predecessors, (2495), 1271 states have call successors, (1271), 124 states have call predecessors, (1271), 203 states have return successors, (1446), 1326 states have call predecessors, (1446), 1270 states have call successors, (1446) [2023-12-21 14:50:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5212 transitions. [2023-12-21 14:50:26,011 INFO L78 Accepts]: Start accepts. Automaton has 3539 states and 5212 transitions. Word has length 589 [2023-12-21 14:50:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 14:50:26,012 INFO L495 AbstractCegarLoop]: Abstraction has 3539 states and 5212 transitions. [2023-12-21 14:50:26,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 6.029411764705882) internal successors, (205), 30 states have internal predecessors, (205), 18 states have call successors, (161), 13 states have call predecessors, (161), 13 states have return successors, (157), 16 states have call predecessors, (157), 18 states have call successors, (157) [2023-12-21 14:50:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3539 states and 5212 transitions. [2023-12-21 14:50:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2023-12-21 14:50:26,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 14:50:26,026 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, 1, 1, 1] [2023-12-21 14:50:26,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 14:50:26,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 14:50:26,241 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 14:50:26,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 14:50:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 784687199, now seen corresponding path program 1 times [2023-12-21 14:50:26,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 14:50:26,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611554352] [2023-12-21 14:50:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 14:50:26,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 14:50:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 14:50:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 14:50:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-21 14:50:28,766 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 14:50:28,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 14:50:28,767 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 632 with TraceHistMax 68,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2023-12-21 14:50:28,770 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] [2023-12-21 14:50:28,772 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 14:50:28,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 02:50:28 BoogieIcfgContainer [2023-12-21 14:50:28,774 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 14:50:28,774 INFO L158 Benchmark]: Toolchain (without parser) took 833818.84ms. Allocated memory was 280.0MB in the beginning and 780.1MB in the end (delta: 500.2MB). Free memory was 223.9MB in the beginning and 364.2MB in the end (delta: -140.3MB). Peak memory consumption was 362.0MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,774 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 219.2MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 14:50:28,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.25ms. Allocated memory is still 280.0MB. Free memory was 223.9MB in the beginning and 178.8MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.34ms. Allocated memory is still 280.0MB. Free memory was 178.8MB in the beginning and 169.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,775 INFO L158 Benchmark]: Boogie Preprocessor took 138.39ms. Allocated memory is still 280.0MB. Free memory was 169.4MB in the beginning and 157.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,775 INFO L158 Benchmark]: RCFGBuilder took 5220.37ms. Allocated memory is still 280.0MB. Free memory was 157.3MB in the beginning and 138.2MB in the end (delta: 19.1MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,775 INFO L158 Benchmark]: TraceAbstraction took 827666.72ms. Allocated memory was 280.0MB in the beginning and 780.1MB in the end (delta: 500.2MB). Free memory was 137.7MB in the beginning and 364.2MB in the end (delta: -226.5MB). Peak memory consumption was 274.2MB. Max. memory is 8.0GB. [2023-12-21 14:50:28,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-21 14:50:28,777 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 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 219.2MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 671.25ms. Allocated memory is still 280.0MB. Free memory was 223.9MB in the beginning and 178.8MB in the end (delta: 45.1MB). Peak memory consumption was 45.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 117.34ms. Allocated memory is still 280.0MB. Free memory was 178.8MB in the beginning and 169.4MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 138.39ms. Allocated memory is still 280.0MB. Free memory was 169.4MB in the beginning and 157.3MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 5220.37ms. Allocated memory is still 280.0MB. Free memory was 157.3MB in the beginning and 138.2MB in the end (delta: 19.1MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. * TraceAbstraction took 827666.72ms. Allocated memory was 280.0MB in the beginning and 780.1MB in the end (delta: 500.2MB). Free memory was 137.7MB in the beginning and 364.2MB in the end (delta: -226.5MB). Peak memory consumption was 274.2MB. 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 NwaCegarLoop was analyzing trace of length 632 with TraceHistMax 68,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∨-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 332 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 827.6s, OverallIterations: 21, TraceHistogramMax: 68, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 695.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 mSolverCounterUnknown, 21920 SdHoareTripleChecker+Valid, 593.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20984 mSDsluCounter, 50387 SdHoareTripleChecker+Invalid, 583.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40465 mSDsCounter, 21232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59099 IncrementalHoareTripleChecker+Invalid, 80458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21232 mSolverCounterUnsat, 9922 mSDtfsCounter, 59099 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11440 GetRequests, 10874 SyntacticMatches, 13 SemanticMatches, 553 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12838 ImplicationChecksByTransitivity, 166.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3539occurred in iteration=20, InterpolantAutomatonStates: 426, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 2658 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 99.7s InterpolantComputationTime, 14173 NumberOfCodeBlocks, 13479 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 17456 ConstructedInterpolants, 49 QuantifiedInterpolants, 42224 SizeOfPredicates, 47 NumberOfNonLiveVariables, 32749 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 38 InterpolantComputations, 13 PerfectInterpolantSequences, 283349/284036 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