/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-mthreaded/rekh_ctm.3-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 12:48:05,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 12:48:05,873 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 12:48:05,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 12:48:05,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 12:48:05,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 12:48:05,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 12:48:05,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 12:48:05,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 12:48:05,911 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 12:48:05,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 12:48:05,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 12:48:05,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 12:48:05,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 12:48:05,913 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 12:48:05,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 12:48:05,913 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 12:48:05,914 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 12:48:05,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 12:48:05,914 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 12:48:05,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 12:48:05,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 12:48:05,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 12:48:05,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 12:48:05,915 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 12:48:05,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 12:48:05,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 12:48:05,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 12:48:05,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 12:48:05,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 12:48:05,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 12:48:05,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:48:05,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 12:48:05,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 12:48:05,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 12:48:05,919 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 12:48:05,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 12:48:05,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 12:48:05,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 12:48:06,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 12:48:06,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 12:48:06,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 12:48:06,182 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 12:48:06,183 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 12:48:06,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-1.c [2023-12-21 12:48:07,379 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 12:48:07,703 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 12:48:07,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-1.c [2023-12-21 12:48:07,732 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380f6746f/d793b8cbe31d4177be5b9d1221d0e398/FLAG11a4e698c [2023-12-21 12:48:07,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380f6746f/d793b8cbe31d4177be5b9d1221d0e398 [2023-12-21 12:48:07,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 12:48:07,750 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 12:48:07,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 12:48:07,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 12:48:07,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 12:48:07,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:07" (1/1) ... [2023-12-21 12:48:07,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e57755f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:07, skipping insertion in model container [2023-12-21 12:48:07,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:07" (1/1) ... [2023-12-21 12:48:07,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 12:48:08,057 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-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-12-21 12:48:08,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:48:08,636 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 12:48:08,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok3.i","-S") [42] [2023-12-21 12:48:08,648 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-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-12-21 12:48:08,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:48:08,820 INFO L206 MainTranslator]: Completed translation [2023-12-21 12:48:08,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08 WrapperNode [2023-12-21 12:48:08,821 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 12:48:08,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 12:48:08,822 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 12:48:08,822 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 12:48:08,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:08,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,107 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8596 [2023-12-21 12:48:09,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 12:48:09,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 12:48:09,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 12:48:09,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 12:48:09,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,263 INFO L175 MemorySlicer]: Split 2420 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46, 53, 46]. 4 percent of accesses are in the largest equivalence class. The 338 initializations are split as follows [2, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]. The 446 writes are split as follows [0, 7, 7, 7, 7, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6, 13, 6]. [2023-12-21 12:48:09,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 12:48:09,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 12:48:09,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 12:48:09,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 12:48:09,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (1/1) ... [2023-12-21 12:48:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:48:09,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:48:09,748 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 12:48:09,764 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 12:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-12-21 12:48:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-12-21 12:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-12-21 12:48:09,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-12-21 12:48:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 12:48:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-21 12:48:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-21 12:48:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-12-21 12:48:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-12-21 12:48:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-12-21 12:48:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-12-21 12:48:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-12-21 12:48:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-12-21 12:48:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-12-21 12:48:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-12-21 12:48:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-12-21 12:48:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-12-21 12:48:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:48:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:48:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-21 12:48:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-21 12:48:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-12-21 12:48:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-12-21 12:48:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-12-21 12:48:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-12-21 12:48:09,792 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-12-21 12:48:09,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-12-21 12:48:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-12-21 12:48:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-12-21 12:48:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-12-21 12:48:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-12-21 12:48:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:48:09,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:48:09,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 12:48:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 12:48:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 12:48:09,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 12:48:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 12:48:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 12:48:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 12:48:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 12:48:09,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 12:48:09,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-12-21 12:48:09,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-12-21 12:48:09,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-12-21 12:48:09,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-12-21 12:48:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-12-21 12:48:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-12-21 12:48:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-12-21 12:48:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-12-21 12:48:09,800 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-12-21 12:48:09,801 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-21 12:48:09,801 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-21 12:48:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 12:48:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-21 12:48:09,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-21 12:48:09,802 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:48:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-12-21 12:48:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-12-21 12:48:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-21 12:48:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-12-21 12:48:09,803 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-21 12:48:09,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-21 12:48:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-12-21 12:48:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-12-21 12:48:09,804 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-12-21 12:48:09,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-12-21 12:48:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-12-21 12:48:09,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-12-21 12:48:09,809 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-12-21 12:48:09,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-12-21 12:48:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-12-21 12:48:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-12-21 12:48:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-12-21 12:48:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-12-21 12:48:09,814 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:48:09,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-12-21 12:48:09,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-12-21 12:48:09,815 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-12-21 12:48:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:48:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-12-21 12:48:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-12-21 12:48:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:48:09,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 12:48:09,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 12:48:09,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-12-21 12:48:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-12-21 12:48:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-12-21 12:48:09,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-12-21 12:48:09,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 12:48:09,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 12:48:10,361 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 12:48:10,365 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 12:48:18,408 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 12:48:18,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 12:48:18,653 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-21 12:48:18,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:48:18 BoogieIcfgContainer [2023-12-21 12:48:18,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 12:48:18,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 12:48:18,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 12:48:18,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 12:48:18,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:48:07" (1/3) ... [2023-12-21 12:48:18,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b94cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:48:18, skipping insertion in model container [2023-12-21 12:48:18,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:08" (2/3) ... [2023-12-21 12:48:18,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b94cb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:48:18, skipping insertion in model container [2023-12-21 12:48:18,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:48:18" (3/3) ... [2023-12-21 12:48:18,661 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2023-12-21 12:48:18,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 12:48:18,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 12:48:18,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 12:48:18,755 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;@6a78c157, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 12:48:18,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 12:48:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 2403 states, 2051 states have (on average 1.4948805460750854) internal successors, (3066), 2075 states have internal predecessors, (3066), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2023-12-21 12:48:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 12:48:18,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:48:18,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:18,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:48:18,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:48:18,789 INFO L85 PathProgramCache]: Analyzing trace with hash -949429943, now seen corresponding path program 1 times [2023-12-21 12:48:18,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:48:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855763103] [2023-12-21 12:48:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:48:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:48:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:19,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:48:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:19,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:48:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 12:48:19,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:48:19,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855763103] [2023-12-21 12:48:19,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855763103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:48:19,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:48:19,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 12:48:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066666398] [2023-12-21 12:48:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:48:19,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 12:48:19,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:48:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 12:48:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 12:48:20,006 INFO L87 Difference]: Start difference. First operand has 2403 states, 2051 states have (on average 1.4948805460750854) internal successors, (3066), 2075 states have internal predecessors, (3066), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 12:48:24,380 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 12:48:28,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:48:32,439 WARN L539 Checker$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 12:48:38,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:48:38,806 INFO L93 Difference]: Finished difference Result 5504 states and 9200 transitions. [2023-12-21 12:48:38,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 12:48:38,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 143 [2023-12-21 12:48:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:48:38,854 INFO L225 Difference]: With dead ends: 5504 [2023-12-21 12:48:38,854 INFO L226 Difference]: Without dead ends: 3093 [2023-12-21 12:48:38,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 12:48:38,889 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 1817 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 1167 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 3390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:48:38,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 4151 Invalid, 3390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1167 Valid, 2220 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2023-12-21 12:48:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2023-12-21 12:48:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 2393. [2023-12-21 12:48:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 2042 states have (on average 1.1581782566111656) internal successors, (2365), 2066 states have internal predecessors, (2365), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2023-12-21 12:48:39,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 2976 transitions. [2023-12-21 12:48:39,113 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 2976 transitions. Word has length 143 [2023-12-21 12:48:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:48:39,114 INFO L495 AbstractCegarLoop]: Abstraction has 2393 states and 2976 transitions. [2023-12-21 12:48:39,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 2 states have internal predecessors, (137), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 12:48:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 2976 transitions. [2023-12-21 12:48:39,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:48:39,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:48:39,122 INFO L195 NwaCegarLoop]: trace histogram [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 12:48:39,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 12:48:39,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:48:39,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:48:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1284484218, now seen corresponding path program 1 times [2023-12-21 12:48:39,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:48:39,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925414316] [2023-12-21 12:48:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:48:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:48:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:48:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:48:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:48:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:48:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:48:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:48:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:48:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:48:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:48:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 12:48:40,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:48:40,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925414316] [2023-12-21 12:48:40,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925414316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:48:40,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:48:40,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:48:40,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413638553] [2023-12-21 12:48:40,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:48:40,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:48:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:48:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:48:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:48:40,722 INFO L87 Difference]: Start difference. First operand 2393 states and 2976 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:48:46,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:48:50,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:48:54,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:48:58,127 WARN L539 Checker$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 12:49:02,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:06,192 WARN L539 Checker$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 12:49:23,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:27,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:31,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:35,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:39,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:43,741 WARN L539 Checker$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 12:49:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:49:43,989 INFO L93 Difference]: Finished difference Result 6292 states and 8536 transitions. [2023-12-21 12:49:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:49:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-12-21 12:49:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:49:44,013 INFO L225 Difference]: With dead ends: 6292 [2023-12-21 12:49:44,014 INFO L226 Difference]: Without dead ends: 3901 [2023-12-21 12:49:44,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:49:44,033 INFO L413 NwaCegarLoop]: 2331 mSDtfsCounter, 9287 mSDsluCounter, 6354 mSDsCounter, 0 mSdLazyCounter, 7748 mSolverCounterSat, 3092 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9430 SdHoareTripleChecker+Valid, 8685 SdHoareTripleChecker+Invalid, 10852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3092 IncrementalHoareTripleChecker+Valid, 7748 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:49:44,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9430 Valid, 8685 Invalid, 10852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3092 Valid, 7748 Invalid, 12 Unknown, 0 Unchecked, 62.3s Time] [2023-12-21 12:49:44,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2023-12-21 12:49:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 2888. [2023-12-21 12:49:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2389 states have (on average 1.193386354123064) internal successors, (2851), 2419 states have internal predecessors, (2851), 421 states have call successors, (421), 77 states have call predecessors, (421), 77 states have return successors, (420), 406 states have call predecessors, (420), 420 states have call successors, (420) [2023-12-21 12:49:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3692 transitions. [2023-12-21 12:49:44,279 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3692 transitions. Word has length 197 [2023-12-21 12:49:44,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:49:44,280 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 3692 transitions. [2023-12-21 12:49:44,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:49:44,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3692 transitions. [2023-12-21 12:49:44,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:49:44,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:49:44,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 12:49:44,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 12:49:44,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:49:44,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:49:44,286 INFO L85 PathProgramCache]: Analyzing trace with hash -426447878, now seen corresponding path program 1 times [2023-12-21 12:49:44,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:49:44,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299202063] [2023-12-21 12:49:44,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:49:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:49:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:49:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:49:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:49:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:49:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:49:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:49:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:49:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:49:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 12:49:45,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:49:45,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299202063] [2023-12-21 12:49:45,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299202063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:49:45,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:49:45,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:49:45,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665034825] [2023-12-21 12:49:45,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:49:45,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:49:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:49:45,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:49:45,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:49:45,635 INFO L87 Difference]: Start difference. First operand 2888 states and 3692 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:49:50,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:54,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:58,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:02,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:06,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:10,952 WARN L539 Checker$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 12:50:25,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:29,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:33,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:37,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:41,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:45,966 WARN L539 Checker$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 12:50:46,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:50:46,195 INFO L93 Difference]: Finished difference Result 7381 states and 10192 transitions. [2023-12-21 12:50:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:50:46,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-12-21 12:50:46,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:50:46,238 INFO L225 Difference]: With dead ends: 7381 [2023-12-21 12:50:46,238 INFO L226 Difference]: Without dead ends: 4495 [2023-12-21 12:50:46,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:50:46,263 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 7183 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 7144 mSolverCounterSat, 2214 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7349 SdHoareTripleChecker+Valid, 7831 SdHoareTripleChecker+Invalid, 9370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2214 IncrementalHoareTripleChecker+Valid, 7144 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.7s IncrementalHoareTripleChecker+Time [2023-12-21 12:50:46,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7349 Valid, 7831 Invalid, 9370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2214 Valid, 7144 Invalid, 12 Unknown, 0 Unchecked, 59.7s Time] [2023-12-21 12:50:46,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2023-12-21 12:50:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 3243. [2023-12-21 12:50:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 2646 states have (on average 1.2142857142857142) internal successors, (3213), 2685 states have internal predecessors, (3213), 498 states have call successors, (498), 98 states have call predecessors, (498), 98 states have return successors, (497), 479 states have call predecessors, (497), 497 states have call successors, (497) [2023-12-21 12:50:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4208 transitions. [2023-12-21 12:50:46,521 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4208 transitions. Word has length 198 [2023-12-21 12:50:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:50:46,522 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4208 transitions. [2023-12-21 12:50:46,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 6 states have internal predecessors, (179), 4 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:50:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4208 transitions. [2023-12-21 12:50:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-21 12:50:46,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:50:46,532 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:50:46,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 12:50:46,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:50:46,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:50:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 324220153, now seen corresponding path program 1 times [2023-12-21 12:50:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:50:46,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363789350] [2023-12-21 12:50:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:50:46,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:50:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:50:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:50:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:50:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:50:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:50:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:50:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:50:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 12:50:48,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:50:48,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363789350] [2023-12-21 12:50:48,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363789350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:50:48,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:50:48,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 12:50:48,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370744463] [2023-12-21 12:50:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:50:48,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 12:50:48,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:50:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 12:50:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:50:48,808 INFO L87 Difference]: Start difference. First operand 3243 states and 4208 transitions. Second operand has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-21 12:50:53,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:57,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:02,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:06,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:10,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:14,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:18,119 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 12:51:34,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:51:34,454 INFO L93 Difference]: Finished difference Result 9438 states and 13324 transitions. [2023-12-21 12:51:34,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 12:51:34,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 194 [2023-12-21 12:51:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:51:34,493 INFO L225 Difference]: With dead ends: 9438 [2023-12-21 12:51:34,493 INFO L226 Difference]: Without dead ends: 6197 [2023-12-21 12:51:34,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 12:51:34,513 INFO L413 NwaCegarLoop]: 2328 mSDtfsCounter, 12113 mSDsluCounter, 7782 mSDsCounter, 0 mSdLazyCounter, 8745 mSolverCounterSat, 5583 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12259 SdHoareTripleChecker+Valid, 10110 SdHoareTripleChecker+Invalid, 14335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5583 IncrementalHoareTripleChecker+Valid, 8745 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2023-12-21 12:51:34,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12259 Valid, 10110 Invalid, 14335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5583 Valid, 8745 Invalid, 7 Unknown, 0 Unchecked, 44.1s Time] [2023-12-21 12:51:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6197 states. [2023-12-21 12:51:34,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6197 to 4158. [2023-12-21 12:51:34,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3292 states have (on average 1.2524301336573511) internal successors, (4123), 3348 states have internal predecessors, (4123), 718 states have call successors, (718), 146 states have call predecessors, (718), 147 states have return successors, (718), 693 states have call predecessors, (718), 717 states have call successors, (718) [2023-12-21 12:51:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5559 transitions. [2023-12-21 12:51:34,951 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5559 transitions. Word has length 194 [2023-12-21 12:51:34,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:51:34,951 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 5559 transitions. [2023-12-21 12:51:34,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 9 states have internal predecessors, (172), 4 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2023-12-21 12:51:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5559 transitions. [2023-12-21 12:51:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:51:34,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:51:34,956 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:51:34,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 12:51:34,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:51:34,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:51:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash -634013934, now seen corresponding path program 1 times [2023-12-21 12:51:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:51:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202993698] [2023-12-21 12:51:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:51:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:51:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:51:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:35,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:51:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:51:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 12:51:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 12:51:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 12:51:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 12:51:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 12:51:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 12:51:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:51:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202993698] [2023-12-21 12:51:36,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202993698] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:51:36,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062106559] [2023-12-21 12:51:36,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:51:36,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:51:36,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:51:36,076 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 12:51:36,087 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 12:51:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:37,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 12:51:37,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:51:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 12:51:37,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:51:37,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062106559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:51:37,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:51:37,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:51:37,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103872466] [2023-12-21 12:51:37,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:51:37,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:51:37,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:51:37,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:51:37,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:51:37,616 INFO L87 Difference]: Start difference. First operand 4158 states and 5559 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:51:42,521 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 12:51:46,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:50,589 WARN L539 Checker$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 12:51:54,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:00,790 WARN L539 Checker$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 12:52:04,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:08,846 WARN L539 Checker$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 12:52:12,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:12,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:52:12,885 INFO L93 Difference]: Finished difference Result 8547 states and 11404 transitions. [2023-12-21 12:52:12,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:52:12,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-12-21 12:52:12,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:52:12,935 INFO L225 Difference]: With dead ends: 8547 [2023-12-21 12:52:12,935 INFO L226 Difference]: Without dead ends: 4280 [2023-12-21 12:52:12,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:52:12,954 INFO L413 NwaCegarLoop]: 3429 mSDtfsCounter, 1424 mSDsluCounter, 8000 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 11429 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2023-12-21 12:52:12,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 11429 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1867 Invalid, 8 Unknown, 0 Unchecked, 34.9s Time] [2023-12-21 12:52:12,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2023-12-21 12:52:13,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4145. [2023-12-21 12:52:13,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 3284 states have (on average 1.2512180267965896) internal successors, (4109), 3340 states have internal predecessors, (4109), 713 states have call successors, (713), 146 states have call predecessors, (713), 147 states have return successors, (713), 688 states have call predecessors, (713), 712 states have call successors, (713) [2023-12-21 12:52:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 5535 transitions. [2023-12-21 12:52:13,316 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 5535 transitions. Word has length 197 [2023-12-21 12:52:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:52:13,316 INFO L495 AbstractCegarLoop]: Abstraction has 4145 states and 5535 transitions. [2023-12-21 12:52:13,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:52:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 5535 transitions. [2023-12-21 12:52:13,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:52:13,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:52:13,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:52:13,335 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 12:52:13,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:13,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:52:13,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:52:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash -657461809, now seen corresponding path program 1 times [2023-12-21 12:52:13,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:52:13,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720134272] [2023-12-21 12:52:13,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:13,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:52:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:52:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:52:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:52:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:52:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:52:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:52:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:52:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:52:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 12:52:14,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:52:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720134272] [2023-12-21 12:52:14,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720134272] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:52:14,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993244308] [2023-12-21 12:52:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:14,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:14,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:52:14,655 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 12:52:14,658 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 12:52:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:16,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 2824 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:52:16,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:52:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 12:52:16,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:52:16,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993244308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:52:16,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:52:16,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:52:16,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267225136] [2023-12-21 12:52:16,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:52:16,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:52:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:52:16,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:52:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:52:16,315 INFO L87 Difference]: Start difference. First operand 4145 states and 5535 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:52:20,981 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 12:52:25,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:29,041 WARN L539 Checker$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 12:52:33,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:38,698 WARN L539 Checker$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 12:52:42,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:46,736 WARN L539 Checker$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 12:52:50,761 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 12:52:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:52:50,850 INFO L93 Difference]: Finished difference Result 8479 states and 11300 transitions. [2023-12-21 12:52:50,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:52:50,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-12-21 12:52:50,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:52:50,902 INFO L225 Difference]: With dead ends: 8479 [2023-12-21 12:52:50,902 INFO L226 Difference]: Without dead ends: 4272 [2023-12-21 12:52:50,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:52:50,915 INFO L413 NwaCegarLoop]: 3424 mSDtfsCounter, 1155 mSDsluCounter, 6149 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 9573 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2023-12-21 12:52:50,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 9573 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1251 Invalid, 8 Unknown, 0 Unchecked, 34.2s Time] [2023-12-21 12:52:50,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2023-12-21 12:52:51,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4135. [2023-12-21 12:52:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 3278 states have (on average 1.2501525320317266) internal successors, (4098), 3334 states have internal predecessors, (4098), 709 states have call successors, (709), 146 states have call predecessors, (709), 147 states have return successors, (709), 684 states have call predecessors, (709), 708 states have call successors, (709) [2023-12-21 12:52:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5516 transitions. [2023-12-21 12:52:51,162 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5516 transitions. Word has length 198 [2023-12-21 12:52:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:52:51,162 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5516 transitions. [2023-12-21 12:52:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:52:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5516 transitions. [2023-12-21 12:52:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:52:51,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:52:51,166 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:52:51,179 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 12:52:51,378 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,SelfDestructingSolverStorable5 [2023-12-21 12:52:51,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:52:51,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:52:51,380 INFO L85 PathProgramCache]: Analyzing trace with hash -802308759, now seen corresponding path program 1 times [2023-12-21 12:52:51,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:52:51,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516757574] [2023-12-21 12:52:51,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:51,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:52:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:52:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:52:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:52:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:52:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:52:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:52:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:52:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:52:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 12:52:52,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:52:52,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516757574] [2023-12-21 12:52:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516757574] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:52:52,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796472952] [2023-12-21 12:52:52,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:52,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:52,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:52:52,446 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 12:52:52,449 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 12:52:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:53,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:52:53,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:52:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 12:52:53,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:52:53,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796472952] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:52:53,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:52:53,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:52:53,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104431949] [2023-12-21 12:52:53,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:52:53,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:52:53,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:52:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:52:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:52:53,961 INFO L87 Difference]: Start difference. First operand 4135 states and 5516 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:52:58,588 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 12:53:02,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:06,642 WARN L539 Checker$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 12:53:08,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:08,930 INFO L93 Difference]: Finished difference Result 9158 states and 12215 transitions. [2023-12-21 12:53:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 198 [2023-12-21 12:53:08,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:08,953 INFO L225 Difference]: With dead ends: 9158 [2023-12-21 12:53:08,953 INFO L226 Difference]: Without dead ends: 5025 [2023-12-21 12:53:08,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:53:08,972 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 1718 mSDsluCounter, 6424 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 9868 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:08,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 9868 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1687 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2023-12-21 12:53:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2023-12-21 12:53:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 4696. [2023-12-21 12:53:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 3667 states have (on average 1.2664303245159532) internal successors, (4644), 3734 states have internal predecessors, (4644), 852 states have call successors, (852), 174 states have call predecessors, (852), 176 states have return successors, (853), 823 states have call predecessors, (853), 851 states have call successors, (853) [2023-12-21 12:53:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 6349 transitions. [2023-12-21 12:53:09,391 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 6349 transitions. Word has length 198 [2023-12-21 12:53:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 4696 states and 6349 transitions. [2023-12-21 12:53:09,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:53:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 6349 transitions. [2023-12-21 12:53:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-21 12:53:09,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:09,395 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:53:09,411 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 12:53:09,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:53:09,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:09,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1842805121, now seen corresponding path program 1 times [2023-12-21 12:53:09,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:09,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031252078] [2023-12-21 12:53:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:53:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 12:53:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 12:53:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:53:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:53:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:10,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 12:53:10,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:10,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031252078] [2023-12-21 12:53:10,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031252078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:10,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:53:10,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:53:10,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691160949] [2023-12-21 12:53:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:10,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:53:10,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:10,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:53:10,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:53:10,661 INFO L87 Difference]: Start difference. First operand 4696 states and 6349 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 12:53:15,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:19,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:23,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:27,720 WARN L539 Checker$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 12:53:31,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:35,772 WARN L539 Checker$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 12:53:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:46,520 INFO L93 Difference]: Finished difference Result 10527 states and 15065 transitions. [2023-12-21 12:53:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:53:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 207 [2023-12-21 12:53:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:46,542 INFO L225 Difference]: With dead ends: 10527 [2023-12-21 12:53:46,542 INFO L226 Difference]: Without dead ends: 5833 [2023-12-21 12:53:46,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:53:46,557 INFO L413 NwaCegarLoop]: 2155 mSDtfsCounter, 10014 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 6071 mSolverCounterSat, 3925 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10176 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 10002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3925 IncrementalHoareTripleChecker+Valid, 6071 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:46,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10176 Valid, 7319 Invalid, 10002 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3925 Valid, 6071 Invalid, 6 Unknown, 0 Unchecked, 34.9s Time] [2023-12-21 12:53:46,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2023-12-21 12:53:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 4133. [2023-12-21 12:53:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3277 states have (on average 1.2493133963991456) internal successors, (4094), 3333 states have internal predecessors, (4094), 708 states have call successors, (708), 146 states have call predecessors, (708), 147 states have return successors, (708), 683 states have call predecessors, (708), 707 states have call successors, (708) [2023-12-21 12:53:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5510 transitions. [2023-12-21 12:53:46,945 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5510 transitions. Word has length 207 [2023-12-21 12:53:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:46,945 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5510 transitions. [2023-12-21 12:53:46,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 12:53:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5510 transitions. [2023-12-21 12:53:46,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-21 12:53:46,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:46,949 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 12:53:46,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 12:53:46,949 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:46,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:46,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1178228792, now seen corresponding path program 1 times [2023-12-21 12:53:46,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:46,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496227016] [2023-12-21 12:53:46,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:46,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:53:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:53:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:53:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 12:53:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 12:53:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:53:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 12:53:47,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496227016] [2023-12-21 12:53:47,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496227016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:47,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:53:47,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:53:47,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920424812] [2023-12-21 12:53:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:47,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:53:47,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:53:48,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:53:48,000 INFO L87 Difference]: Start difference. First operand 4133 states and 5510 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-21 12:53:53,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:57,242 WARN L539 Checker$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 12:54:01,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:05,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:09,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:13,348 WARN L539 Checker$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 12:54:29,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:33,258 WARN L539 Checker$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 12:54:37,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:41,293 WARN L539 Checker$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 12:54:45,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:49,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:54:49,542 INFO L93 Difference]: Finished difference Result 10094 states and 14366 transitions. [2023-12-21 12:54:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:54:49,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 210 [2023-12-21 12:54:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:54:49,559 INFO L225 Difference]: With dead ends: 10094 [2023-12-21 12:54:49,559 INFO L226 Difference]: Without dead ends: 5963 [2023-12-21 12:54:49,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:54:49,574 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 6017 mSDsluCounter, 6981 mSDsCounter, 0 mSdLazyCounter, 8733 mSolverCounterSat, 1756 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6165 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 10501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1756 IncrementalHoareTripleChecker+Valid, 8733 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.6s IncrementalHoareTripleChecker+Time [2023-12-21 12:54:49,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6165 Valid, 9220 Invalid, 10501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1756 Valid, 8733 Invalid, 12 Unknown, 0 Unchecked, 60.6s Time] [2023-12-21 12:54:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2023-12-21 12:54:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4131. [2023-12-21 12:54:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3276 states have (on average 1.249084249084249) internal successors, (4092), 3332 states have internal predecessors, (4092), 707 states have call successors, (707), 146 states have call predecessors, (707), 147 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-12-21 12:54:49,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5506 transitions. [2023-12-21 12:54:49,969 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5506 transitions. Word has length 210 [2023-12-21 12:54:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:54:49,969 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5506 transitions. [2023-12-21 12:54:49,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-21 12:54:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5506 transitions. [2023-12-21 12:54:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 12:54:49,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:54:49,972 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-21 12:54:49,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 12:54:49,973 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:54:49,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:54:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash 615564307, now seen corresponding path program 1 times [2023-12-21 12:54:49,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:54:49,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790542084] [2023-12-21 12:54:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:54:49,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:54:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:54:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:54:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:54:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:54:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:54:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 12:54:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 12:54:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:54:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:51,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 12:54:51,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:54:51,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790542084] [2023-12-21 12:54:51,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790542084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:54:51,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:54:51,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:54:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562349119] [2023-12-21 12:54:51,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:54:51,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:54:51,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:54:51,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:54:51,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:54:51,013 INFO L87 Difference]: Start difference. First operand 4131 states and 5506 transitions. Second operand has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 12:54:56,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:00,267 WARN L539 Checker$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 12:55:04,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:08,324 WARN L539 Checker$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 12:55:12,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:16,371 WARN L539 Checker$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 12:55:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:55:28,254 INFO L93 Difference]: Finished difference Result 9959 states and 14211 transitions. [2023-12-21 12:55:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:55:28,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 211 [2023-12-21 12:55:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:55:28,276 INFO L225 Difference]: With dead ends: 9959 [2023-12-21 12:55:28,277 INFO L226 Difference]: Without dead ends: 5830 [2023-12-21 12:55:28,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:55:28,293 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 9126 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 6710 mSolverCounterSat, 3217 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9290 SdHoareTripleChecker+Valid, 7003 SdHoareTripleChecker+Invalid, 9933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3217 IncrementalHoareTripleChecker+Valid, 6710 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:55:28,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9290 Valid, 7003 Invalid, 9933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3217 Valid, 6710 Invalid, 6 Unknown, 0 Unchecked, 36.3s Time] [2023-12-21 12:55:28,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2023-12-21 12:55:28,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 4131. [2023-12-21 12:55:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3276 states have (on average 1.2487789987789988) internal successors, (4091), 3332 states have internal predecessors, (4091), 707 states have call successors, (707), 146 states have call predecessors, (707), 147 states have return successors, (707), 682 states have call predecessors, (707), 706 states have call successors, (707) [2023-12-21 12:55:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5505 transitions. [2023-12-21 12:55:28,680 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5505 transitions. Word has length 211 [2023-12-21 12:55:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:55:28,680 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5505 transitions. [2023-12-21 12:55:28,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.11111111111111) internal successors, (181), 6 states have internal predecessors, (181), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-21 12:55:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5505 transitions. [2023-12-21 12:55:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-21 12:55:28,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:55:28,683 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-21 12:55:28,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 12:55:28,683 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:55:28,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:55:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash 116581454, now seen corresponding path program 1 times [2023-12-21 12:55:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:55:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636996208] [2023-12-21 12:55:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:55:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:55:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:55:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:55:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:55:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:55:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:55:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:55:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 12:55:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 12:55:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:55:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 12:55:29,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:55:29,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636996208] [2023-12-21 12:55:29,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636996208] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:55:29,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:55:29,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:55:29,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186612242] [2023-12-21 12:55:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:55:29,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:55:29,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:55:29,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:55:29,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:55:29,566 INFO L87 Difference]: Start difference. First operand 4131 states and 5505 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 12:55:34,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:38,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:42,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:46,774 WARN L539 Checker$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 12:55:50,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:54,825 WARN L539 Checker$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 12:56:12,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:16,752 WARN L539 Checker$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 12:56:20,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:24,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:28,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:32,866 WARN L539 Checker$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 12:56:33,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:56:33,061 INFO L93 Difference]: Finished difference Result 10089 states and 14354 transitions. [2023-12-21 12:56:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:56:33,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 214 [2023-12-21 12:56:33,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:56:33,083 INFO L225 Difference]: With dead ends: 10089 [2023-12-21 12:56:33,084 INFO L226 Difference]: Without dead ends: 5960 [2023-12-21 12:56:33,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:56:33,098 INFO L413 NwaCegarLoop]: 2240 mSDtfsCounter, 9616 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 6588 mSolverCounterSat, 3264 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9767 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 9864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3264 IncrementalHoareTripleChecker+Valid, 6588 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.4s IncrementalHoareTripleChecker+Time [2023-12-21 12:56:33,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9767 Valid, 7229 Invalid, 9864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3264 Valid, 6588 Invalid, 12 Unknown, 0 Unchecked, 62.4s Time] [2023-12-21 12:56:33,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-12-21 12:56:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 4129. [2023-12-21 12:56:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3275 states have (on average 1.2485496183206106) internal successors, (4089), 3331 states have internal predecessors, (4089), 706 states have call successors, (706), 146 states have call predecessors, (706), 147 states have return successors, (706), 681 states have call predecessors, (706), 705 states have call successors, (706) [2023-12-21 12:56:33,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5501 transitions. [2023-12-21 12:56:33,501 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5501 transitions. Word has length 214 [2023-12-21 12:56:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:56:33,502 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5501 transitions. [2023-12-21 12:56:33,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 6 states have internal predecessors, (182), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 12:56:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5501 transitions. [2023-12-21 12:56:33,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 12:56:33,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:56:33,505 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-21 12:56:33,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 12:56:33,505 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:56:33,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:56:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1101800564, now seen corresponding path program 1 times [2023-12-21 12:56:33,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:56:33,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282525215] [2023-12-21 12:56:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:56:33,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:56:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:56:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:56:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:56:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:56:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:56:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:56:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:56:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 12:56:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:56:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 12:56:34,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:56:34,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282525215] [2023-12-21 12:56:34,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282525215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:56:34,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:56:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:56:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804173783] [2023-12-21 12:56:34,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:56:34,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:56:34,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:56:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:56:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:56:34,496 INFO L87 Difference]: Start difference. First operand 4129 states and 5501 transitions. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 12:56:39,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:44,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:48,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:52,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:56,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:00,107 WARN L539 Checker$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 12:57:15,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:19,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:23,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:27,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:31,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:35,637 WARN L539 Checker$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 12:57:35,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:57:35,842 INFO L93 Difference]: Finished difference Result 10084 states and 14344 transitions. [2023-12-21 12:57:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:57:35,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 215 [2023-12-21 12:57:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:57:35,862 INFO L225 Difference]: With dead ends: 10084 [2023-12-21 12:57:35,862 INFO L226 Difference]: Without dead ends: 5957 [2023-12-21 12:57:35,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:57:35,878 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 6001 mSDsluCounter, 7088 mSDsCounter, 0 mSdLazyCounter, 8574 mSolverCounterSat, 1684 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6155 SdHoareTripleChecker+Valid, 9424 SdHoareTripleChecker+Invalid, 10270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 8574 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.4s IncrementalHoareTripleChecker+Time [2023-12-21 12:57:35,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6155 Valid, 9424 Invalid, 10270 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1684 Valid, 8574 Invalid, 12 Unknown, 0 Unchecked, 60.4s Time] [2023-12-21 12:57:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2023-12-21 12:57:36,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 4125. [2023-12-21 12:57:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.2480904369080354) internal successors, (4085), 3329 states have internal predecessors, (4085), 704 states have call successors, (704), 146 states have call predecessors, (704), 147 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-12-21 12:57:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5493 transitions. [2023-12-21 12:57:36,317 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5493 transitions. Word has length 215 [2023-12-21 12:57:36,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:57:36,318 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5493 transitions. [2023-12-21 12:57:36,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 6 states have internal predecessors, (183), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-21 12:57:36,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5493 transitions. [2023-12-21 12:57:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 12:57:36,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:57:36,321 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-21 12:57:36,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 12:57:36,321 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:57:36,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:57:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash 802633582, now seen corresponding path program 1 times [2023-12-21 12:57:36,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:57:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788223449] [2023-12-21 12:57:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:57:36,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:57:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:57:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:57:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:57:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:57:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:57:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:57:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 12:57:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:57:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 12:57:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:57:37,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788223449] [2023-12-21 12:57:37,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788223449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:57:37,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:57:37,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:57:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355813554] [2023-12-21 12:57:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:57:37,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:57:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:57:37,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:57:37,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:57:37,195 INFO L87 Difference]: Start difference. First operand 4125 states and 5493 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 12:57:42,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:46,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:50,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:54,574 WARN L539 Checker$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 12:57:58,595 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 12:58:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:58:09,970 INFO L93 Difference]: Finished difference Result 9944 states and 14177 transitions. [2023-12-21 12:58:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 12:58:09,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 215 [2023-12-21 12:58:09,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:58:09,990 INFO L225 Difference]: With dead ends: 9944 [2023-12-21 12:58:09,991 INFO L226 Difference]: Without dead ends: 5821 [2023-12-21 12:58:10,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 12:58:10,003 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 2843 mSDsluCounter, 8310 mSDsCounter, 0 mSdLazyCounter, 7040 mSolverCounterSat, 1208 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2927 SdHoareTripleChecker+Valid, 10477 SdHoareTripleChecker+Invalid, 8253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 7040 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2023-12-21 12:58:10,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2927 Valid, 10477 Invalid, 8253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1208 Valid, 7040 Invalid, 5 Unknown, 0 Unchecked, 31.9s Time] [2023-12-21 12:58:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2023-12-21 12:58:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 4125. [2023-12-21 12:58:10,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.247784906813321) internal successors, (4084), 3329 states have internal predecessors, (4084), 704 states have call successors, (704), 146 states have call predecessors, (704), 147 states have return successors, (704), 679 states have call predecessors, (704), 703 states have call successors, (704) [2023-12-21 12:58:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5492 transitions. [2023-12-21 12:58:10,446 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5492 transitions. Word has length 215 [2023-12-21 12:58:10,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:58:10,447 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5492 transitions. [2023-12-21 12:58:10,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 5 states have internal predecessors, (182), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 12:58:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5492 transitions. [2023-12-21 12:58:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 12:58:10,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:58:10,450 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-21 12:58:10,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 12:58:10,450 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:58:10,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:58:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1981903949, now seen corresponding path program 1 times [2023-12-21 12:58:10,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:58:10,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539969150] [2023-12-21 12:58:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:58:10,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:58:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:58:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:58:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:58:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:58:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:58:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:58:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 12:58:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 12:58:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:58:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 12:58:11,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:58:11,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539969150] [2023-12-21 12:58:11,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539969150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:58:11,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:58:11,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:58:11,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850678957] [2023-12-21 12:58:11,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:58:11,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:58:11,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:58:11,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:58:11,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:58:11,394 INFO L87 Difference]: Start difference. First operand 4125 states and 5492 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 12:58:17,166 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 12:58:21,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:25,217 WARN L539 Checker$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 12:58:29,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:33,264 WARN L539 Checker$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 12:58:47,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:51,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:56,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:00,036 WARN L539 Checker$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 12:59:04,055 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 12:59:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:59:04,287 INFO L93 Difference]: Finished difference Result 10073 states and 14316 transitions. [2023-12-21 12:59:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:59:04,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 218 [2023-12-21 12:59:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:59:04,303 INFO L225 Difference]: With dead ends: 10073 [2023-12-21 12:59:04,303 INFO L226 Difference]: Without dead ends: 5950 [2023-12-21 12:59:04,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 12:59:04,315 INFO L413 NwaCegarLoop]: 2324 mSDtfsCounter, 4070 mSDsluCounter, 8072 mSDsCounter, 0 mSdLazyCounter, 7115 mSolverCounterSat, 1266 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 10396 SdHoareTripleChecker+Invalid, 8391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1266 IncrementalHoareTripleChecker+Valid, 7115 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.0s IncrementalHoareTripleChecker+Time [2023-12-21 12:59:04,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4188 Valid, 10396 Invalid, 8391 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1266 Valid, 7115 Invalid, 10 Unknown, 0 Unchecked, 52.0s Time] [2023-12-21 12:59:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2023-12-21 12:59:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 4123. [2023-12-21 12:59:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 3272 states have (on average 1.2475550122249388) internal successors, (4082), 3328 states have internal predecessors, (4082), 703 states have call successors, (703), 146 states have call predecessors, (703), 147 states have return successors, (703), 678 states have call predecessors, (703), 702 states have call successors, (703) [2023-12-21 12:59:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5488 transitions. [2023-12-21 12:59:04,708 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5488 transitions. Word has length 218 [2023-12-21 12:59:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:59:04,708 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 5488 transitions. [2023-12-21 12:59:04,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 12:59:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5488 transitions. [2023-12-21 12:59:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 12:59:04,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:59:04,712 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-12-21 12:59:04,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 12:59:04,712 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:59:04,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:59:04,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1432338438, now seen corresponding path program 1 times [2023-12-21 12:59:04,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:59:04,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946238327] [2023-12-21 12:59:04,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:59:04,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:59:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:59:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:59:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:59:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:59:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:59:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:59:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:59:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 12:59:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:59:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 12:59:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:59:05,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946238327] [2023-12-21 12:59:05,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946238327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:59:05,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:59:05,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:59:05,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787676060] [2023-12-21 12:59:05,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:59:05,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:59:05,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:59:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:59:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:59:05,604 INFO L87 Difference]: Start difference. First operand 4123 states and 5488 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 12:59:10,412 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 12:59:14,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:18,454 WARN L539 Checker$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 12:59:22,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:26,504 WARN L539 Checker$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 12:59:40,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:44,278 WARN L539 Checker$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 12:59:48,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:52,315 WARN L539 Checker$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 12:59:56,335 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 12:59:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:59:56,379 INFO L93 Difference]: Finished difference Result 10069 states and 14303 transitions. [2023-12-21 12:59:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:59:56,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-12-21 12:59:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:59:56,401 INFO L225 Difference]: With dead ends: 10069 [2023-12-21 12:59:56,401 INFO L226 Difference]: Without dead ends: 5948 [2023-12-21 12:59:56,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 12:59:56,417 INFO L413 NwaCegarLoop]: 2190 mSDtfsCounter, 5515 mSDsluCounter, 5428 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 1986 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5649 SdHoareTripleChecker+Valid, 7618 SdHoareTripleChecker+Invalid, 7253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1986 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.9s IncrementalHoareTripleChecker+Time [2023-12-21 12:59:56,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5649 Valid, 7618 Invalid, 7253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1986 Valid, 5257 Invalid, 10 Unknown, 0 Unchecked, 49.9s Time] [2023-12-21 12:59:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2023-12-21 12:59:56,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 4121. [2023-12-21 12:59:56,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3271 states have (on average 1.247324977071232) internal successors, (4080), 3327 states have internal predecessors, (4080), 702 states have call successors, (702), 146 states have call predecessors, (702), 147 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-12-21 12:59:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5484 transitions. [2023-12-21 12:59:56,870 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5484 transitions. Word has length 219 [2023-12-21 12:59:56,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:59:56,870 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5484 transitions. [2023-12-21 12:59:56,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 12:59:56,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5484 transitions. [2023-12-21 12:59:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 12:59:56,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:59:56,874 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-21 12:59:56,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 12:59:56,874 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:59:56,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:59:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1125349908, now seen corresponding path program 1 times [2023-12-21 12:59:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:59:56,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077805199] [2023-12-21 12:59:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:59:56,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:59:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:59:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:59:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:59:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:59:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:59:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:59:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 12:59:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 12:59:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:59:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 12:59:57,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:59:57,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077805199] [2023-12-21 12:59:57,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077805199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:59:57,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:59:57,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:59:57,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905675308] [2023-12-21 12:59:57,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:59:57,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:59:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:59:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:59:57,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:59:57,737 INFO L87 Difference]: Start difference. First operand 4121 states and 5484 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 13:00:02,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:07,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:11,040 WARN L539 Checker$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 13:00:15,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:19,095 WARN L539 Checker$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 13:00:28,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:00:28,965 INFO L93 Difference]: Finished difference Result 9932 states and 14146 transitions. [2023-12-21 13:00:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:00:28,965 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-12-21 13:00:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:00:28,982 INFO L225 Difference]: With dead ends: 9932 [2023-12-21 13:00:28,982 INFO L226 Difference]: Without dead ends: 5813 [2023-12-21 13:00:28,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:00:28,994 INFO L413 NwaCegarLoop]: 2123 mSDtfsCounter, 4511 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 5199 mSolverCounterSat, 2257 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4592 SdHoareTripleChecker+Valid, 9011 SdHoareTripleChecker+Invalid, 7461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2257 IncrementalHoareTripleChecker+Valid, 5199 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:00:28,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4592 Valid, 9011 Invalid, 7461 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2257 Valid, 5199 Invalid, 5 Unknown, 0 Unchecked, 30.3s Time] [2023-12-21 13:00:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5813 states. [2023-12-21 13:00:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5813 to 4121. [2023-12-21 13:00:29,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3271 states have (on average 1.2470192601650871) internal successors, (4079), 3327 states have internal predecessors, (4079), 702 states have call successors, (702), 146 states have call predecessors, (702), 147 states have return successors, (702), 677 states have call predecessors, (702), 701 states have call successors, (702) [2023-12-21 13:00:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5483 transitions. [2023-12-21 13:00:29,378 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5483 transitions. Word has length 219 [2023-12-21 13:00:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:00:29,378 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5483 transitions. [2023-12-21 13:00:29,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 13:00:29,378 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5483 transitions. [2023-12-21 13:00:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 13:00:29,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:00:29,381 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-21 13:00:29,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:00:29,382 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:00:29,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:00:29,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1724010657, now seen corresponding path program 1 times [2023-12-21 13:00:29,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:00:29,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363780831] [2023-12-21 13:00:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:00:29,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:00:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:00:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:00:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:00:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:00:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:00:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:00:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:00:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 13:00:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 13:00:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:00:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 13:00:30,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:00:30,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363780831] [2023-12-21 13:00:30,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363780831] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:00:30,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:00:30,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:00:30,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125518025] [2023-12-21 13:00:30,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:00:30,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:00:30,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:00:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:00:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:00:30,158 INFO L87 Difference]: Start difference. First operand 4121 states and 5483 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:00:35,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:39,241 WARN L539 Checker$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 13:00:43,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:47,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:51,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:05,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:09,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:13,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:17,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:21,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:21,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:01:21,627 INFO L93 Difference]: Finished difference Result 10061 states and 14285 transitions. [2023-12-21 13:01:21,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:01:21,628 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 222 [2023-12-21 13:01:21,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:01:21,642 INFO L225 Difference]: With dead ends: 10061 [2023-12-21 13:01:21,643 INFO L226 Difference]: Without dead ends: 5942 [2023-12-21 13:01:21,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:01:21,654 INFO L413 NwaCegarLoop]: 2272 mSDtfsCounter, 7492 mSDsluCounter, 4938 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 2963 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7611 SdHoareTripleChecker+Valid, 7210 SdHoareTripleChecker+Invalid, 7534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2963 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:01:21,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7611 Valid, 7210 Invalid, 7534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2963 Valid, 4561 Invalid, 10 Unknown, 0 Unchecked, 50.5s Time] [2023-12-21 13:01:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2023-12-21 13:01:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 4119. [2023-12-21 13:01:21,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4119 states, 3270 states have (on average 1.2467889908256882) internal successors, (4077), 3326 states have internal predecessors, (4077), 701 states have call successors, (701), 146 states have call predecessors, (701), 147 states have return successors, (701), 676 states have call predecessors, (701), 700 states have call successors, (701) [2023-12-21 13:01:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4119 states to 4119 states and 5479 transitions. [2023-12-21 13:01:22,000 INFO L78 Accepts]: Start accepts. Automaton has 4119 states and 5479 transitions. Word has length 222 [2023-12-21 13:01:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:01:22,000 INFO L495 AbstractCegarLoop]: Abstraction has 4119 states and 5479 transitions. [2023-12-21 13:01:22,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:01:22,000 INFO L276 IsEmpty]: Start isEmpty. Operand 4119 states and 5479 transitions. [2023-12-21 13:01:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-21 13:01:22,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:01:22,002 INFO L195 NwaCegarLoop]: trace histogram [5, 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 13:01:22,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:01:22,002 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:01:22,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:01:22,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1993474236, now seen corresponding path program 1 times [2023-12-21 13:01:22,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:01:22,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725462004] [2023-12-21 13:01:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:01:22,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:01:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:01:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:01:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:01:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:01:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:01:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:01:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:01:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 13:01:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 13:01:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:01:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 13:01:22,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:01:22,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725462004] [2023-12-21 13:01:22,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725462004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:01:22,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:01:22,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:01:22,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960472265] [2023-12-21 13:01:22,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:01:22,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:01:22,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:01:22,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:01:22,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:01:22,755 INFO L87 Difference]: Start difference. First operand 4119 states and 5479 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:01:28,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:32,202 WARN L539 Checker$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 13:01:36,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:40,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:44,282 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 [] Received shutdown request... [2023-12-21 13:01:57,499 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 13:01:58,700 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-21 13:01:58,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-21 13:01:58,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:01:58,775 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 6600 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 6089 mSolverCounterSat, 2260 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6733 SdHoareTripleChecker+Valid, 9015 SdHoareTripleChecker+Invalid, 8355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2260 IncrementalHoareTripleChecker+Valid, 6089 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:01:58,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6733 Valid, 9015 Invalid, 8355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2260 Valid, 6089 Invalid, 5 Unknown, 0 Unchecked, 31.1s Time] [2023-12-21 13:01:58,776 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 13:01:58,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:01:58,776 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-21 13:01:58,779 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:01:58,781 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 13:01:58,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:01:58 BoogieIcfgContainer [2023-12-21 13:01:58,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 13:01:58,784 INFO L158 Benchmark]: Toolchain (without parser) took 831033.55ms. Allocated memory was 273.7MB in the beginning and 745.5MB in the end (delta: 471.9MB). Free memory was 211.2MB in the beginning and 549.1MB in the end (delta: -337.9MB). Peak memory consumption was 541.9MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,784 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 212.9MB. Free memory was 158.4MB in the beginning and 158.3MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 13:01:58,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1068.83ms. Allocated memory is still 273.7MB. Free memory was 211.2MB in the beginning and 175.1MB in the end (delta: 36.1MB). Peak memory consumption was 62.8MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,784 INFO L158 Benchmark]: Boogie Procedure Inliner took 285.37ms. Allocated memory is still 273.7MB. Free memory was 175.1MB in the beginning and 127.5MB in the end (delta: 47.6MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,784 INFO L158 Benchmark]: Boogie Preprocessor took 551.53ms. Allocated memory is still 273.7MB. Free memory was 127.5MB in the beginning and 183.4MB in the end (delta: -55.9MB). Peak memory consumption was 78.8MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,785 INFO L158 Benchmark]: RCFGBuilder took 8993.61ms. Allocated memory was 273.7MB in the beginning and 620.8MB in the end (delta: 347.1MB). Free memory was 182.8MB in the beginning and 426.8MB in the end (delta: -243.9MB). Peak memory consumption was 186.0MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,785 INFO L158 Benchmark]: TraceAbstraction took 820127.49ms. Allocated memory was 620.8MB in the beginning and 745.5MB in the end (delta: 124.8MB). Free memory was 425.7MB in the beginning and 549.1MB in the end (delta: -123.4MB). Peak memory consumption was 408.2MB. Max. memory is 8.0GB. [2023-12-21 13:01:58,786 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 212.9MB. Free memory was 158.4MB in the beginning and 158.3MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1068.83ms. Allocated memory is still 273.7MB. Free memory was 211.2MB in the beginning and 175.1MB in the end (delta: 36.1MB). Peak memory consumption was 62.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 285.37ms. Allocated memory is still 273.7MB. Free memory was 175.1MB in the beginning and 127.5MB in the end (delta: 47.6MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 551.53ms. Allocated memory is still 273.7MB. Free memory was 127.5MB in the beginning and 183.4MB in the end (delta: -55.9MB). Peak memory consumption was 78.8MB. Max. memory is 8.0GB. * RCFGBuilder took 8993.61ms. Allocated memory was 273.7MB in the beginning and 620.8MB in the end (delta: 347.1MB). Free memory was 182.8MB in the beginning and 426.8MB in the end (delta: -243.9MB). Peak memory consumption was 186.0MB. Max. memory is 8.0GB. * TraceAbstraction took 820127.49ms. Allocated memory was 620.8MB in the beginning and 745.5MB in the end (delta: 124.8MB). Free memory was 425.7MB in the beginning and 549.1MB in the end (delta: -123.4MB). Peak memory consumption was 408.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 42]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok3.i","-S") [42] * 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: 46]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 46). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 2403 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 820.1s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 788.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 146 mSolverCounterUnknown, 108460 SdHoareTripleChecker+Valid, 768.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106502 mSDsluCounter, 155569 SdHoareTripleChecker+Invalid, 748.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111743 mSDsCounter, 37859 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102599 IncrementalHoareTripleChecker+Invalid, 140605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37859 mSolverCounterUnsat, 43826 mSDtfsCounter, 102599 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1253 GetRequests, 1012 SyntacticMatches, 3 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4696occurred in iteration=7, InterpolantAutomatonStates: 198, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 23364 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 4291 NumberOfCodeBlocks, 4291 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 4270 ConstructedInterpolants, 0 QuantifiedInterpolants, 9179 SizeOfPredicates, 3 NumberOfNonLiveVariables, 8469 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 228/242 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