/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.3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 12:48:57,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 12:48:57,481 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 12:48:57,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 12:48:57,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 12:48:57,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 12:48:57,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 12:48:57,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 12:48:57,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 12:48:57,527 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 12:48:57,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 12:48:57,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 12:48:57,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 12:48:57,530 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 12:48:57,530 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 12:48:57,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 12:48:57,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 12:48:57,531 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 12:48:57,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 12:48:57,531 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 12:48:57,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 12:48:57,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 12:48:57,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 12:48:57,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 12:48:57,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 12:48:57,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 12:48:57,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 12:48:57,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 12:48:57,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 12:48:57,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 12:48:57,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:48:57,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 12:48:57,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 12:48:57,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 12:48:57,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 12:48:57,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 12:48:57,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 12:48:57,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 12:48:57,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 12:48:57,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 12:48:57,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 12:48:57,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 12:48:57,798 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 12:48:57,798 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 12:48:57,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-2.c [2023-12-21 12:48:58,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 12:48:59,276 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 12:48:59,276 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.3-2.c [2023-12-21 12:48:59,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de5ec28d/670a773016134158ab6ccb5f9d64dc3d/FLAG5a4cae5e0 [2023-12-21 12:48:59,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de5ec28d/670a773016134158ab6ccb5f9d64dc3d [2023-12-21 12:48:59,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 12:48:59,328 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 12:48:59,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 12:48:59,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 12:48:59,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 12:48:59,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:48:59,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4744e875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59, skipping insertion in model container [2023-12-21 12:48:59,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:48:59,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 12:48:59,612 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.3-2.c[1871,1884] [2023-12-21 12:49:00,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:49:00,213 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 12:49:00,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug3.i","-S") [42] [2023-12-21 12:49:00,226 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.3-2.c[1871,1884] [2023-12-21 12:49:00,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:49:00,472 INFO L206 MainTranslator]: Completed translation [2023-12-21 12:49:00,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00 WrapperNode [2023-12-21 12:49:00,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 12:49:00,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 12:49:00,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 12:49:00,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 12:49:00,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:00,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:00,842 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8596 [2023-12-21 12:49:00,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 12:49:00,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 12:49:00,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 12:49:00,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 12:49:00,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:00,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,001 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,136 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 12:49:01,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 12:49:01,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 12:49:01,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 12:49:01,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 12:49:01,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (1/1) ... [2023-12-21 12:49:01,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:49:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:49:01,415 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 12:49:01,437 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 12:49:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-12-21 12:49:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-12-21 12:49:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-12-21 12:49:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-12-21 12:49:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 12:49:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 12:49:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-12-21 12:49:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-12-21 12:49:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-12-21 12:49:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-12-21 12:49:01,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-12-21 12:49:01,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:49:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-21 12:49:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-21 12:49:01,451 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-12-21 12:49:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-12-21 12:49:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-12-21 12:49:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-12-21 12:49:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-12-21 12:49:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-12-21 12:49:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-12-21 12:49:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-12-21 12:49:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-12-21 12:49:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:49:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 12:49:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 12:49:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-12-21 12:49:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-12-21 12:49:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-12-21 12:49:01,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-12-21 12:49:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-12-21 12:49:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-12-21 12:49:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-12-21 12:49:01,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-12-21 12:49:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-12-21 12:49:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-21 12:49:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-21 12:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 12:49:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-21 12:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-21 12:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-12-21 12:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-12-21 12:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-12-21 12:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-12-21 12:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-21 12:49:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-21 12:49:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-12-21 12:49:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-12-21 12:49:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-21 12:49:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-21 12:49:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-12-21 12:49:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-12-21 12:49:01,463 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-12-21 12:49:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-12-21 12:49:01,465 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-12-21 12:49:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-12-21 12:49:01,468 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-12-21 12:49:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-12-21 12:49:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-12-21 12:49:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-12-21 12:49:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-12-21 12:49:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-12-21 12:49:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:49:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:49:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-12-21 12:49:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-12-21 12:49:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:49:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-12-21 12:49:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-12-21 12:49:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:49:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 12:49:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-12-21 12:49:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-12-21 12:49:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-12-21 12:49:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-12-21 12:49:01,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 12:49:01,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 12:49:02,115 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 12:49:02,117 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 12:49:09,943 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 12:49:10,217 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 12:49:10,218 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-21 12:49:10,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:49:10 BoogieIcfgContainer [2023-12-21 12:49:10,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 12:49:10,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 12:49:10,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 12:49:10,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 12:49:10,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:48:59" (1/3) ... [2023-12-21 12:49:10,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574aebc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:49:10, skipping insertion in model container [2023-12-21 12:49:10,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:49:00" (2/3) ... [2023-12-21 12:49:10,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574aebc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:49:10, skipping insertion in model container [2023-12-21 12:49:10,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:49:10" (3/3) ... [2023-12-21 12:49:10,225 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2023-12-21 12:49:10,239 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 12:49:10,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 12:49:10,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 12:49:10,329 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;@43617c13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 12:49:10,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 12:49:10,341 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 12:49:10,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 12:49:10,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:49:10,363 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 12:49:10,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:49:10,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:49:10,371 INFO L85 PathProgramCache]: Analyzing trace with hash -949429943, now seen corresponding path program 1 times [2023-12-21 12:49:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:49:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490413119] [2023-12-21 12:49:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:49:10,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:49:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:49:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:49:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:11,471 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 12:49:11,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:49:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490413119] [2023-12-21 12:49:11,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490413119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:49:11,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:49:11,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 12:49:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664702784] [2023-12-21 12:49:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:49:11,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 12:49:11,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:49:11,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 12:49:11,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 12:49:11,518 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 12:49:15,886 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 12:49:19,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:23,930 WARN L539 Checker$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 12:49:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:49:30,071 INFO L93 Difference]: Finished difference Result 5504 states and 9198 transitions. [2023-12-21 12:49:30,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 12:49:30,073 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 12:49:30,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:49:30,116 INFO L225 Difference]: With dead ends: 5504 [2023-12-21 12:49:30,116 INFO L226 Difference]: Without dead ends: 3093 [2023-12-21 12:49:30,150 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 12:49:30,154 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 1780 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 1168 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 4159 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1168 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-12-21 12:49:30,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 4159 Invalid, 3427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1168 Valid, 2256 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2023-12-21 12:49:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2023-12-21 12:49:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 2393. [2023-12-21 12:49:30,380 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 12:49:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 2976 transitions. [2023-12-21 12:49:30,412 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 2976 transitions. Word has length 143 [2023-12-21 12:49:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:49:30,413 INFO L495 AbstractCegarLoop]: Abstraction has 2393 states and 2976 transitions. [2023-12-21 12:49:30,413 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 12:49:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 2976 transitions. [2023-12-21 12:49:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:49:30,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:49:30,426 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 12:49:30,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 12:49:30,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:49:30,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:49:30,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1284484218, now seen corresponding path program 1 times [2023-12-21 12:49:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:49:30,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042113264] [2023-12-21 12:49:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:49:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:49:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:49:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:49:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:49:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:49:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:49:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:49:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:49:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:49:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:32,039 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 12:49:32,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:49:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042113264] [2023-12-21 12:49:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042113264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:49:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:49:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:49:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679001184] [2023-12-21 12:49:32,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:49:32,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:49:32,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:49:32,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:49:32,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:49:32,044 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 12:49:37,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:41,432 WARN L539 Checker$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 12:49:45,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:49,496 WARN L539 Checker$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 12:49:53,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:57,582 WARN L539 Checker$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 12:50:14,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:18,956 WARN L539 Checker$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 12:50:22,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:27,010 WARN L539 Checker$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 12:50:31,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:35,066 WARN L539 Checker$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 12:50:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:50:35,295 INFO L93 Difference]: Finished difference Result 6292 states and 8534 transitions. [2023-12-21 12:50:35,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:50:35,295 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 12:50:35,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:50:35,316 INFO L225 Difference]: With dead ends: 6292 [2023-12-21 12:50:35,317 INFO L226 Difference]: Without dead ends: 3901 [2023-12-21 12:50:35,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 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 12:50:35,337 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 9382 mSDsluCounter, 6364 mSDsCounter, 0 mSdLazyCounter, 7836 mSolverCounterSat, 3140 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9510 SdHoareTripleChecker+Valid, 8684 SdHoareTripleChecker+Invalid, 10988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3140 IncrementalHoareTripleChecker+Valid, 7836 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:50:35,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9510 Valid, 8684 Invalid, 10988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3140 Valid, 7836 Invalid, 12 Unknown, 0 Unchecked, 62.3s Time] [2023-12-21 12:50:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2023-12-21 12:50:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 2888. [2023-12-21 12:50:35,525 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 12:50:35,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3692 transitions. [2023-12-21 12:50:35,541 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3692 transitions. Word has length 197 [2023-12-21 12:50:35,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:50:35,544 INFO L495 AbstractCegarLoop]: Abstraction has 2888 states and 3692 transitions. [2023-12-21 12:50:35,544 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 12:50:35,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3692 transitions. [2023-12-21 12:50:35,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:50:35,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:50:35,548 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 12:50:35,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 12:50:35,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:50:35,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:50:35,550 INFO L85 PathProgramCache]: Analyzing trace with hash -426447878, now seen corresponding path program 1 times [2023-12-21 12:50:35,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:50:35,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87184978] [2023-12-21 12:50:35,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:50:35,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:50:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:50:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:50:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:50:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:50:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:50:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:50:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:50:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:50:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:36,929 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 12:50:36,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:50:36,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87184978] [2023-12-21 12:50:36,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87184978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:50:36,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:50:36,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:50:36,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082460950] [2023-12-21 12:50:36,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:50:36,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:50:36,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:50:36,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:50:36,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:50:36,949 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 12:50:41,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:45,980 WARN L539 Checker$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 12:50:50,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:54,044 WARN L539 Checker$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 12:50:58,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:02,106 WARN L539 Checker$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 12:51:17,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:21,440 WARN L539 Checker$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 12:51:25,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:29,486 WARN L539 Checker$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 12:51:33,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:37,536 WARN L539 Checker$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 12:51:37,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:51:37,728 INFO L93 Difference]: Finished difference Result 7381 states and 10190 transitions. [2023-12-21 12:51:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:51:37,729 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 12:51:37,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:51:37,753 INFO L225 Difference]: With dead ends: 7381 [2023-12-21 12:51:37,753 INFO L226 Difference]: Without dead ends: 4495 [2023-12-21 12:51:37,773 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 12:51:37,774 INFO L413 NwaCegarLoop]: 2203 mSDtfsCounter, 7207 mSDsluCounter, 5574 mSDsCounter, 0 mSdLazyCounter, 7177 mSolverCounterSat, 2237 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7369 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 9426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2237 IncrementalHoareTripleChecker+Valid, 7177 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.9s IncrementalHoareTripleChecker+Time [2023-12-21 12:51:37,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7369 Valid, 7777 Invalid, 9426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2237 Valid, 7177 Invalid, 12 Unknown, 0 Unchecked, 59.9s Time] [2023-12-21 12:51:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4495 states. [2023-12-21 12:51:38,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4495 to 3243. [2023-12-21 12:51:38,017 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 12:51:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4208 transitions. [2023-12-21 12:51:38,031 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4208 transitions. Word has length 198 [2023-12-21 12:51:38,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:51:38,032 INFO L495 AbstractCegarLoop]: Abstraction has 3243 states and 4208 transitions. [2023-12-21 12:51:38,033 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 12:51:38,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4208 transitions. [2023-12-21 12:51:38,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-21 12:51:38,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:51:38,042 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 12:51:38,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 12:51:38,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:51:38,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:51:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash 324220153, now seen corresponding path program 1 times [2023-12-21 12:51:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:51:38,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700636980] [2023-12-21 12:51:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:51:38,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:51:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:51:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:51:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:51:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:51:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:51:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:51:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:51:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:40,143 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 12:51:40,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:51:40,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700636980] [2023-12-21 12:51:40,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700636980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:51:40,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:51:40,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 12:51:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564601891] [2023-12-21 12:51:40,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:51:40,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 12:51:40,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:51:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 12:51:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:51:40,146 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 12:51:45,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:49,496 WARN L539 Checker$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 12:51:53,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:57,540 WARN L539 Checker$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 12:52:01,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:05,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:09,666 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 12:52:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:52:22,761 INFO L93 Difference]: Finished difference Result 9438 states and 13322 transitions. [2023-12-21 12:52:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 12:52:22,762 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 12:52:22,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:52:22,795 INFO L225 Difference]: With dead ends: 9438 [2023-12-21 12:52:22,796 INFO L226 Difference]: Without dead ends: 6197 [2023-12-21 12:52:22,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 12:52:22,812 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 12606 mSDsluCounter, 7689 mSDsCounter, 0 mSdLazyCounter, 8245 mSolverCounterSat, 5877 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12753 SdHoareTripleChecker+Valid, 9954 SdHoareTripleChecker+Invalid, 14129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5877 IncrementalHoareTripleChecker+Valid, 8245 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:52:22,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12753 Valid, 9954 Invalid, 14129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5877 Valid, 8245 Invalid, 7 Unknown, 0 Unchecked, 41.3s Time] [2023-12-21 12:52:22,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6197 states. [2023-12-21 12:52:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6197 to 4158. [2023-12-21 12:52:23,240 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 12:52:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5559 transitions. [2023-12-21 12:52:23,255 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5559 transitions. Word has length 194 [2023-12-21 12:52:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:52:23,255 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 5559 transitions. [2023-12-21 12:52:23,255 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 12:52:23,256 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5559 transitions. [2023-12-21 12:52:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:52:23,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:52:23,260 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 12:52:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 12:52:23,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:52:23,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:52:23,261 INFO L85 PathProgramCache]: Analyzing trace with hash -634013934, now seen corresponding path program 1 times [2023-12-21 12:52:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:52:23,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570540853] [2023-12-21 12:52:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:23,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:52:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:52:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:52:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:52:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 12:52:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 12:52:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 12:52:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 12:52:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 12:52:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:24,249 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 12:52:24,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:52:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570540853] [2023-12-21 12:52:24,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570540853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:52:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896074961] [2023-12-21 12:52:24,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:24,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:24,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:52:24,256 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 12:52:24,266 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 12:52:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:25,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 2822 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 12:52:25,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:52:25,893 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 12:52:25,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:52:25,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896074961] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:52:25,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:52:25,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:52:25,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784727301] [2023-12-21 12:52:25,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:52:25,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:52:25,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:52:25,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:52:25,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:52:25,896 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 12:52:30,497 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 12:52:34,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:38,558 WARN L539 Checker$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 12:52:42,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:48,875 WARN L539 Checker$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 12:52:52,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:56,926 WARN L539 Checker$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 12:53:00,960 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 12:53:00,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:00,970 INFO L93 Difference]: Finished difference Result 8547 states and 11404 transitions. [2023-12-21 12:53:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:00,994 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 12:53:00,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:01,013 INFO L225 Difference]: With dead ends: 8547 [2023-12-21 12:53:01,013 INFO L226 Difference]: Without dead ends: 4280 [2023-12-21 12:53:01,031 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 12:53:01,032 INFO L413 NwaCegarLoop]: 3429 mSDtfsCounter, 1424 mSDsluCounter, 8000 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s 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, 34.7s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:01,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 11429 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1867 Invalid, 8 Unknown, 0 Unchecked, 34.7s Time] [2023-12-21 12:53:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2023-12-21 12:53:01,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4145. [2023-12-21 12:53:01,293 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 12:53:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 5535 transitions. [2023-12-21 12:53:01,310 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 5535 transitions. Word has length 197 [2023-12-21 12:53:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:01,311 INFO L495 AbstractCegarLoop]: Abstraction has 4145 states and 5535 transitions. [2023-12-21 12:53:01,311 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 12:53:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 5535 transitions. [2023-12-21 12:53:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:53:01,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:01,315 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 12:53:01,331 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 12:53:01,515 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 12:53:01,516 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:01,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash -657461809, now seen corresponding path program 1 times [2023-12-21 12:53:01,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891393610] [2023-12-21 12:53:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:01,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:53:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:53:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:53:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:53:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:53:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:02,626 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 12:53:02,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:02,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891393610] [2023-12-21 12:53:02,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891393610] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:53:02,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908151068] [2023-12-21 12:53:02,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:02,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:53:02,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:53:02,628 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 12:53:02,676 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 12:53:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:04,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 2824 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:53:04,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:53:04,274 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 12:53:04,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:53:04,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908151068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:04,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:53:04,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:53:04,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119238774] [2023-12-21 12:53:04,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:04,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:53:04,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:53:04,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:53:04,277 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 12:53:08,926 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 12:53:12,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:16,990 WARN L539 Checker$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 12:53:21,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:26,525 WARN L539 Checker$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 12:53:30,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:34,628 WARN L539 Checker$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 12:53:38,649 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 12:53:38,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:38,737 INFO L93 Difference]: Finished difference Result 8479 states and 11300 transitions. [2023-12-21 12:53:38,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:38,737 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 12:53:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:38,756 INFO L225 Difference]: With dead ends: 8479 [2023-12-21 12:53:38,756 INFO L226 Difference]: Without dead ends: 4272 [2023-12-21 12:53:38,773 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 12:53:38,774 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 12:53:38,774 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 12:53:38,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2023-12-21 12:53:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4135. [2023-12-21 12:53:39,101 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 12:53:39,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5516 transitions. [2023-12-21 12:53:39,114 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5516 transitions. Word has length 198 [2023-12-21 12:53:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:39,114 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5516 transitions. [2023-12-21 12:53:39,115 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 12:53:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5516 transitions. [2023-12-21 12:53:39,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:53:39,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:39,119 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 12:53:39,134 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 12:53:39,332 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 12:53:39,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:39,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:39,333 INFO L85 PathProgramCache]: Analyzing trace with hash -802308759, now seen corresponding path program 1 times [2023-12-21 12:53:39,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:39,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980899154] [2023-12-21 12:53:39,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:39,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:53:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:53:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:53:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:53:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:40,342 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 12:53:40,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:40,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980899154] [2023-12-21 12:53:40,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980899154] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:53:40,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336926657] [2023-12-21 12:53:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:40,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:53:40,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:53:40,344 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 12:53:40,346 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 12:53:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:41,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 2823 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:53:41,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:53:41,767 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 12:53:41,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:53:41,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336926657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:41,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:53:41,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:53:41,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609171891] [2023-12-21 12:53:41,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:41,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:53:41,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:41,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:53:41,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:53:41,770 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 12:53:46,295 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 12:53:50,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:54,355 WARN L539 Checker$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 12:53:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:56,389 INFO L93 Difference]: Finished difference Result 9158 states and 12215 transitions. [2023-12-21 12:53:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:56,389 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 12:53:56,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:56,408 INFO L225 Difference]: With dead ends: 9158 [2023-12-21 12:53:56,409 INFO L226 Difference]: Without dead ends: 5025 [2023-12-21 12:53:56,420 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 12:53:56,420 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 1718 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 9830 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:56,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 9830 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1681 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2023-12-21 12:53:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2023-12-21 12:53:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 4696. [2023-12-21 12:53:56,745 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 12:53:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 6349 transitions. [2023-12-21 12:53:56,760 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 6349 transitions. Word has length 198 [2023-12-21 12:53:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:56,760 INFO L495 AbstractCegarLoop]: Abstraction has 4696 states and 6349 transitions. [2023-12-21 12:53:56,760 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 12:53:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 6349 transitions. [2023-12-21 12:53:56,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-21 12:53:56,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:56,763 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 12:53:56,775 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 12:53:56,972 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 12:53:56,973 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:56,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1842805121, now seen corresponding path program 1 times [2023-12-21 12:53:56,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:56,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090741338] [2023-12-21 12:53:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:56,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:53:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 12:53:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 12:53:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:53:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:53:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:57,953 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 12:53:57,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:57,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090741338] [2023-12-21 12:53:57,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090741338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:57,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:53:57,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:53:57,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118414348] [2023-12-21 12:53:57,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:57,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:53:57,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:57,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:53:57,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:53:57,955 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 12:54:02,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:06,891 WARN L539 Checker$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 12:54:10,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:14,945 WARN L539 Checker$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 12:54:18,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:22,997 WARN L539 Checker$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 12:54:33,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:54:33,452 INFO L93 Difference]: Finished difference Result 10527 states and 15063 transitions. [2023-12-21 12:54:33,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:54:33,453 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 12:54:33,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:54:33,470 INFO L225 Difference]: With dead ends: 10527 [2023-12-21 12:54:33,470 INFO L226 Difference]: Without dead ends: 5833 [2023-12-21 12:54:33,481 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 12:54:33,482 INFO L413 NwaCegarLoop]: 2196 mSDtfsCounter, 9935 mSDsluCounter, 5240 mSDsCounter, 0 mSdLazyCounter, 6294 mSolverCounterSat, 3884 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10096 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 10184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3884 IncrementalHoareTripleChecker+Valid, 6294 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2023-12-21 12:54:33,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10096 Valid, 7436 Invalid, 10184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3884 Valid, 6294 Invalid, 6 Unknown, 0 Unchecked, 34.6s Time] [2023-12-21 12:54:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2023-12-21 12:54:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 4133. [2023-12-21 12:54:33,896 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 12:54:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5510 transitions. [2023-12-21 12:54:33,913 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5510 transitions. Word has length 207 [2023-12-21 12:54:33,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:54:33,914 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5510 transitions. [2023-12-21 12:54:33,914 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 12:54:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5510 transitions. [2023-12-21 12:54:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-21 12:54:33,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:54:33,917 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 12:54:33,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 12:54:33,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:54:33,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:54:33,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1178228792, now seen corresponding path program 1 times [2023-12-21 12:54:33,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:54:33,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754528555] [2023-12-21 12:54:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:54:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:54:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:54:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:54:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:54:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:54:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:54:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:54:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 12:54:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 12:54:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:54:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:34,863 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 12:54:34,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:54:34,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754528555] [2023-12-21 12:54:34,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754528555] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:54:34,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:54:34,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:54:34,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061491104] [2023-12-21 12:54:34,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:54:34,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:54:34,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:54:34,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:54:34,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:54:34,866 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 12:54:40,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:44,439 WARN L539 Checker$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 12:54:48,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:52,485 WARN L539 Checker$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 12:54:56,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:00,537 WARN L539 Checker$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 12:55:16,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:20,809 WARN L539 Checker$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 12:55:24,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:28,894 WARN L539 Checker$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 12:55:32,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:36,951 WARN L539 Checker$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 12:55:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:55:37,138 INFO L93 Difference]: Finished difference Result 10094 states and 14364 transitions. [2023-12-21 12:55:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:55:37,139 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 12:55:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:55:37,157 INFO L225 Difference]: With dead ends: 10094 [2023-12-21 12:55:37,157 INFO L226 Difference]: Without dead ends: 5963 [2023-12-21 12:55:37,172 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 12:55:37,173 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 5959 mSDsluCounter, 7065 mSDsCounter, 0 mSdLazyCounter, 8792 mSolverCounterSat, 1719 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 10523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 8792 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:55:37,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6115 Valid, 9382 Invalid, 10523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1719 Valid, 8792 Invalid, 12 Unknown, 0 Unchecked, 61.3s Time] [2023-12-21 12:55:37,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2023-12-21 12:55:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4131. [2023-12-21 12:55:37,560 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 12:55:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5506 transitions. [2023-12-21 12:55:37,577 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5506 transitions. Word has length 210 [2023-12-21 12:55:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:55:37,578 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5506 transitions. [2023-12-21 12:55:37,578 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 12:55:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5506 transitions. [2023-12-21 12:55:37,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 12:55:37,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:55:37,581 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 12:55:37,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 12:55:37,581 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:55:37,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:55:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash 615564307, now seen corresponding path program 1 times [2023-12-21 12:55:37,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:55:37,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922679020] [2023-12-21 12:55:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:55:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:55:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:55:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:55:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:55:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:55:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:55:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 12:55:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 12:55:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:55:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:38,609 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 12:55:38,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:55:38,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922679020] [2023-12-21 12:55:38,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922679020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:55:38,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:55:38,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:55:38,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219847327] [2023-12-21 12:55:38,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:55:38,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:55:38,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:55:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:55:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:55:38,611 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 12:55:43,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:47,619 WARN L539 Checker$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 12:55:51,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:55,689 WARN L539 Checker$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 12:55:59,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:03,748 WARN L539 Checker$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 12:56:16,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:56:16,116 INFO L93 Difference]: Finished difference Result 9959 states and 14209 transitions. [2023-12-21 12:56:16,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:56:16,116 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 12:56:16,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:56:16,140 INFO L225 Difference]: With dead ends: 9959 [2023-12-21 12:56:16,140 INFO L226 Difference]: Without dead ends: 5830 [2023-12-21 12:56:16,157 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 12:56:16,157 INFO L413 NwaCegarLoop]: 2112 mSDtfsCounter, 9226 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 6678 mSolverCounterSat, 3250 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9382 SdHoareTripleChecker+Valid, 6981 SdHoareTripleChecker+Invalid, 9934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3250 IncrementalHoareTripleChecker+Valid, 6678 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2023-12-21 12:56:16,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9382 Valid, 6981 Invalid, 9934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3250 Valid, 6678 Invalid, 6 Unknown, 0 Unchecked, 36.5s Time] [2023-12-21 12:56:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2023-12-21 12:56:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 4131. [2023-12-21 12:56:16,539 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 12:56:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 5505 transitions. [2023-12-21 12:56:16,557 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 5505 transitions. Word has length 211 [2023-12-21 12:56:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:56:16,557 INFO L495 AbstractCegarLoop]: Abstraction has 4131 states and 5505 transitions. [2023-12-21 12:56:16,557 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 12:56:16,557 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 5505 transitions. [2023-12-21 12:56:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-21 12:56:16,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:56:16,560 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 12:56:16,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 12:56:16,561 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:56:16,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:56:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash 116581454, now seen corresponding path program 1 times [2023-12-21 12:56:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:56:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953251869] [2023-12-21 12:56:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:56:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:56:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:56:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:56:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:56:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:56:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:56:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:56:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 12:56:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 12:56:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:56:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:17,619 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 12:56:17,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:56:17,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953251869] [2023-12-21 12:56:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953251869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:56:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:56:17,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:56:17,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811560469] [2023-12-21 12:56:17,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:56:17,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:56:17,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:56:17,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:56:17,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:56:17,623 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 12:56:22,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:26,791 WARN L539 Checker$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 12:56:30,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:34,842 WARN L539 Checker$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 12:56:38,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:42,912 WARN L539 Checker$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 12:56:57,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:01,495 WARN L539 Checker$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 12:57:05,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:09,540 WARN L539 Checker$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 12:57:13,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:17,589 WARN L539 Checker$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 12:57:17,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:57:17,785 INFO L93 Difference]: Finished difference Result 10089 states and 14352 transitions. [2023-12-21 12:57:17,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:57:17,785 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 12:57:17,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:57:17,807 INFO L225 Difference]: With dead ends: 10089 [2023-12-21 12:57:17,808 INFO L226 Difference]: Without dead ends: 5960 [2023-12-21 12:57:17,821 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 12:57:17,822 INFO L413 NwaCegarLoop]: 2249 mSDtfsCounter, 9583 mSDsluCounter, 4996 mSDsCounter, 0 mSdLazyCounter, 6625 mSolverCounterSat, 3267 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9730 SdHoareTripleChecker+Valid, 7245 SdHoareTripleChecker+Invalid, 9904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3267 IncrementalHoareTripleChecker+Valid, 6625 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:57:17,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9730 Valid, 7245 Invalid, 9904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3267 Valid, 6625 Invalid, 12 Unknown, 0 Unchecked, 59.3s Time] [2023-12-21 12:57:17,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5960 states. [2023-12-21 12:57:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5960 to 4129. [2023-12-21 12:57:18,222 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 12:57:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5501 transitions. [2023-12-21 12:57:18,240 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5501 transitions. Word has length 214 [2023-12-21 12:57:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:57:18,240 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5501 transitions. [2023-12-21 12:57:18,240 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 12:57:18,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5501 transitions. [2023-12-21 12:57:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 12:57:18,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:57:18,243 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 12:57:18,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 12:57:18,243 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:57:18,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:57:18,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1101800564, now seen corresponding path program 1 times [2023-12-21 12:57:18,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:57:18,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005482607] [2023-12-21 12:57:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:57:18,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:57:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:57:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:57:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:57:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:57:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:57:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:57:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:57:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 12:57:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:57:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:19,216 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 12:57:19,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:57:19,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005482607] [2023-12-21 12:57:19,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005482607] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:57:19,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:57:19,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:57:19,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636319345] [2023-12-21 12:57:19,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:57:19,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:57:19,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:57:19,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:57:19,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:57:19,218 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 12:57:24,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:28,311 WARN L539 Checker$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 12:57:32,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:36,369 WARN L539 Checker$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 12:57:40,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:44,413 WARN L539 Checker$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 12:58:00,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:04,333 WARN L539 Checker$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 12:58:08,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:12,393 WARN L539 Checker$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 12:58:16,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:20,436 WARN L539 Checker$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 12:58:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:58:20,595 INFO L93 Difference]: Finished difference Result 10084 states and 14342 transitions. [2023-12-21 12:58:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:58:20,595 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 12:58:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:58:20,612 INFO L225 Difference]: With dead ends: 10084 [2023-12-21 12:58:20,613 INFO L226 Difference]: Without dead ends: 5957 [2023-12-21 12:58:20,626 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 12:58:20,627 INFO L413 NwaCegarLoop]: 2247 mSDtfsCounter, 6086 mSDsluCounter, 6991 mSDsCounter, 0 mSdLazyCounter, 8263 mSolverCounterSat, 1759 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6236 SdHoareTripleChecker+Valid, 9238 SdHoareTripleChecker+Invalid, 10034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 8263 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:58:20,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6236 Valid, 9238 Invalid, 10034 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1759 Valid, 8263 Invalid, 12 Unknown, 0 Unchecked, 60.3s Time] [2023-12-21 12:58:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2023-12-21 12:58:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 4125. [2023-12-21 12:58:21,058 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 12:58:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5493 transitions. [2023-12-21 12:58:21,070 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5493 transitions. Word has length 215 [2023-12-21 12:58:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:58:21,071 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5493 transitions. [2023-12-21 12:58:21,071 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 12:58:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5493 transitions. [2023-12-21 12:58:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 12:58:21,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:58:21,074 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 12:58:21,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 12:58:21,074 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:58:21,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:58:21,075 INFO L85 PathProgramCache]: Analyzing trace with hash 802633582, now seen corresponding path program 1 times [2023-12-21 12:58:21,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:58:21,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083960010] [2023-12-21 12:58:21,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:58:21,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:58:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:58:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:21,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:58:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:58:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:58:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:58:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:58:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 12:58:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:58:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:22,043 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 12:58:22,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:58:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083960010] [2023-12-21 12:58:22,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083960010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:58:22,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:58:22,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:58:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295077571] [2023-12-21 12:58:22,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:58:22,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:58:22,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:58:22,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:58:22,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:58:22,045 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 12:58:27,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:31,628 WARN L539 Checker$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 12:58:35,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:39,687 WARN L539 Checker$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 12:58:43,717 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 12:58:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:58:54,482 INFO L93 Difference]: Finished difference Result 9944 states and 14175 transitions. [2023-12-21 12:58:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 12:58:54,483 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 12:58:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:58:54,498 INFO L225 Difference]: With dead ends: 9944 [2023-12-21 12:58:54,498 INFO L226 Difference]: Without dead ends: 5821 [2023-12-21 12:58:54,509 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 12:58:54,509 INFO L413 NwaCegarLoop]: 2041 mSDtfsCounter, 2925 mSDsluCounter, 8055 mSDsCounter, 0 mSdLazyCounter, 6828 mSolverCounterSat, 1288 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3003 SdHoareTripleChecker+Valid, 10096 SdHoareTripleChecker+Invalid, 8121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1288 IncrementalHoareTripleChecker+Valid, 6828 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2023-12-21 12:58:54,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3003 Valid, 10096 Invalid, 8121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1288 Valid, 6828 Invalid, 5 Unknown, 0 Unchecked, 31.6s Time] [2023-12-21 12:58:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5821 states. [2023-12-21 12:58:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5821 to 4125. [2023-12-21 12:58:54,959 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 12:58:54,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5492 transitions. [2023-12-21 12:58:54,976 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5492 transitions. Word has length 215 [2023-12-21 12:58:54,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:58:54,976 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5492 transitions. [2023-12-21 12:58:54,976 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 12:58:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5492 transitions. [2023-12-21 12:58:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 12:58:54,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:58:54,979 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 12:58:54,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 12:58:54,980 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:58:54,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:58:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1981903949, now seen corresponding path program 1 times [2023-12-21 12:58:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:58:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288220424] [2023-12-21 12:58:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:58:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:58:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:58:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:58:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:58:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:58:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:58:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:58:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 12:58:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 12:58:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:58:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:55,810 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 12:58:55,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:58:55,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288220424] [2023-12-21 12:58:55,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288220424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:58:55,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:58:55,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:58:55,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848691284] [2023-12-21 12:58:55,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:58:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:58:55,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:58:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:58:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:58:55,812 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 12:59:01,437 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 12:59:05,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:09,496 WARN L539 Checker$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 12:59:13,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:17,558 WARN L539 Checker$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 12:59:31,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:35,934 WARN L539 Checker$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 12:59:39,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:43,991 WARN L539 Checker$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 12:59:48,020 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 12:59:48,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:59:48,227 INFO L93 Difference]: Finished difference Result 10073 states and 14314 transitions. [2023-12-21 12:59:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:59:48,228 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 12:59:48,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:59:48,241 INFO L225 Difference]: With dead ends: 10073 [2023-12-21 12:59:48,241 INFO L226 Difference]: Without dead ends: 5950 [2023-12-21 12:59:48,250 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 12:59:48,251 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 4166 mSDsluCounter, 7998 mSDsCounter, 0 mSdLazyCounter, 6906 mSolverCounterSat, 1346 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4287 SdHoareTripleChecker+Valid, 10259 SdHoareTripleChecker+Invalid, 8262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 6906 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.5s IncrementalHoareTripleChecker+Time [2023-12-21 12:59:48,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4287 Valid, 10259 Invalid, 8262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1346 Valid, 6906 Invalid, 10 Unknown, 0 Unchecked, 51.5s Time] [2023-12-21 12:59:48,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2023-12-21 12:59:48,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 4123. [2023-12-21 12:59:48,678 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 12:59:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5488 transitions. [2023-12-21 12:59:48,693 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5488 transitions. Word has length 218 [2023-12-21 12:59:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:59:48,694 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 5488 transitions. [2023-12-21 12:59:48,694 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 12:59:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5488 transitions. [2023-12-21 12:59:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 12:59:48,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:59:48,697 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 12:59:48,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 12:59:48,697 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:59:48,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:59:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1432338438, now seen corresponding path program 1 times [2023-12-21 12:59:48,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:59:48,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617497049] [2023-12-21 12:59:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:59:48,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:59:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:59:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:59:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:59:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:59:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:59:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:59:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:59:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 12:59:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:59:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:49,476 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 12:59:49,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:59:49,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617497049] [2023-12-21 12:59:49,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617497049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:59:49,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:59:49,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:59:49,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195396185] [2023-12-21 12:59:49,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:59:49,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:59:49,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:59:49,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:59:49,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:59:49,478 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 12:59:54,034 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 12:59:58,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:02,085 WARN L539 Checker$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 13:00:06,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:10,140 WARN L539 Checker$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 13:00:22,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:26,429 WARN L539 Checker$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 13:00:30,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:34,481 WARN L539 Checker$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 13:00:38,508 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 13:00:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:00:38,552 INFO L93 Difference]: Finished difference Result 10069 states and 14301 transitions. [2023-12-21 13:00:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:00:38,553 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 13:00:38,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:00:38,567 INFO L225 Difference]: With dead ends: 10069 [2023-12-21 13:00:38,567 INFO L226 Difference]: Without dead ends: 5948 [2023-12-21 13:00:38,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 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 13:00:38,578 INFO L413 NwaCegarLoop]: 2142 mSDtfsCounter, 5639 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 5163 mSolverCounterSat, 2098 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5777 SdHoareTripleChecker+Valid, 7547 SdHoareTripleChecker+Invalid, 7271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2098 IncrementalHoareTripleChecker+Valid, 5163 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:00:38,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5777 Valid, 7547 Invalid, 7271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2098 Valid, 5163 Invalid, 10 Unknown, 0 Unchecked, 48.3s Time] [2023-12-21 13:00:38,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2023-12-21 13:00:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 4121. [2023-12-21 13:00:38,954 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 13:00:38,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5484 transitions. [2023-12-21 13:00:38,967 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5484 transitions. Word has length 219 [2023-12-21 13:00:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:00:38,968 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5484 transitions. [2023-12-21 13:00:38,968 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 13:00:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5484 transitions. [2023-12-21 13:00:38,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 13:00:38,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:00:38,971 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 13:00:38,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:00:38,971 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:00:38,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:00:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1125349908, now seen corresponding path program 1 times [2023-12-21 13:00:38,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:00:38,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758829588] [2023-12-21 13:00:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:00:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:00:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:00:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:00:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:00:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:00:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:00:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:00:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:00:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 13:00:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:00:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:39,797 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 13:00:39,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:00:39,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758829588] [2023-12-21 13:00:39,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758829588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:00:39,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:00:39,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:00:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985136425] [2023-12-21 13:00:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:00:39,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:00:39,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:00:39,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:00:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:00:39,800 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 13:00:45,008 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 13:00:49,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:53,081 WARN L539 Checker$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 13:00:57,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:01,142 WARN L539 Checker$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 13:01:09,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:01:09,800 INFO L93 Difference]: Finished difference Result 9932 states and 14144 transitions. [2023-12-21 13:01:09,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:01:09,801 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 13:01:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:01:09,818 INFO L225 Difference]: With dead ends: 9932 [2023-12-21 13:01:09,819 INFO L226 Difference]: Without dead ends: 5813 [2023-12-21 13:01:09,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 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 13:01:09,831 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 4728 mSDsluCounter, 6898 mSDsCounter, 0 mSdLazyCounter, 5071 mSolverCounterSat, 2399 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 8996 SdHoareTripleChecker+Invalid, 7475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2399 IncrementalHoareTripleChecker+Valid, 5071 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:01:09,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 8996 Invalid, 7475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2399 Valid, 5071 Invalid, 5 Unknown, 0 Unchecked, 29.1s Time] [2023-12-21 13:01:09,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5813 states. [2023-12-21 13:01:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5813 to 4121. [2023-12-21 13:01:10,196 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 13:01:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5483 transitions. [2023-12-21 13:01:10,207 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5483 transitions. Word has length 219 [2023-12-21 13:01:10,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:01:10,207 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5483 transitions. [2023-12-21 13:01:10,207 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 13:01:10,207 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5483 transitions. [2023-12-21 13:01:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 13:01:10,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:01:10,210 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 13:01:10,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:01:10,211 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:01:10,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:01:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1724010657, now seen corresponding path program 1 times [2023-12-21 13:01:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:01:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17340404] [2023-12-21 13:01:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:01:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:01:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:01:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:01:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:01:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:01:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:01:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:01:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:01:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 13:01:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 13:01:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:01:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:11,057 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 13:01:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:01:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17340404] [2023-12-21 13:01:11,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17340404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:01:11,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:01:11,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:01:11,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360152972] [2023-12-21 13:01:11,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:01:11,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:01:11,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:01:11,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:01:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:01:11,059 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 13:01:16,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:20,140 WARN L539 Checker$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 13:01:24,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:28,197 WARN L539 Checker$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 13:01:32,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:45,454 WARN L539 Checker$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 13:01:49,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:53,509 WARN L539 Checker$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 13:01:57,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:01,569 WARN L539 Checker$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 13:02:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:02:01,643 INFO L93 Difference]: Finished difference Result 10061 states and 14283 transitions. [2023-12-21 13:02:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:02:01,643 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 13:02:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:02:01,664 INFO L225 Difference]: With dead ends: 10061 [2023-12-21 13:02:01,665 INFO L226 Difference]: Without dead ends: 5942 [2023-12-21 13:02:01,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 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 13:02:01,679 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 7530 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 2997 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7651 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 7598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2997 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:02:01,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7651 Valid, 7181 Invalid, 7598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2997 Valid, 4591 Invalid, 10 Unknown, 0 Unchecked, 49.7s Time] [2023-12-21 13:02:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5942 states. [2023-12-21 13:02:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5942 to 4119. [2023-12-21 13:02:02,077 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 13:02:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4119 states to 4119 states and 5479 transitions. [2023-12-21 13:02:02,088 INFO L78 Accepts]: Start accepts. Automaton has 4119 states and 5479 transitions. Word has length 222 [2023-12-21 13:02:02,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:02:02,088 INFO L495 AbstractCegarLoop]: Abstraction has 4119 states and 5479 transitions. [2023-12-21 13:02:02,088 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 13:02:02,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4119 states and 5479 transitions. [2023-12-21 13:02:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-21 13:02:02,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:02:02,091 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 13:02:02,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:02:02,091 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:02:02,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:02:02,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1993474236, now seen corresponding path program 1 times [2023-12-21 13:02:02,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:02:02,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164724428] [2023-12-21 13:02:02,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:02:02,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:02:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:02:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:02:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:02:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:02:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:02:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:02:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:02:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 13:02:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 13:02:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:02:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:02,848 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 13:02:02,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:02:02,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164724428] [2023-12-21 13:02:02,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164724428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:02:02,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:02:02,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:02:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447827216] [2023-12-21 13:02:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:02:02,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:02:02,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:02:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:02:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:02:02,850 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 13:02:08,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:12,390 WARN L539 Checker$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 13:02:16,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:20,449 WARN L539 Checker$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 13:02:24,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:39,233 WARN L539 Checker$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 13:02:43,255 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 [] Received shutdown request... [2023-12-21 13:02:45,244 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 13:02:46,445 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 13:02:46,529 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 13:02:46,529 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 13:02:46,530 INFO L413 NwaCegarLoop]: 1983 mSDtfsCounter, 6824 mSDsluCounter, 6743 mSDsCounter, 0 mSdLazyCounter, 5851 mSolverCounterSat, 2440 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6954 SdHoareTripleChecker+Valid, 8726 SdHoareTripleChecker+Invalid, 8299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2440 IncrementalHoareTripleChecker+Valid, 5851 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:02:46,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6954 Valid, 8726 Invalid, 8299 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2440 Valid, 5851 Invalid, 7 Unknown, 0 Unchecked, 39.5s Time] [2023-12-21 13:02:46,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 13:02:46,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:02:46,531 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-21 13:02:46,534 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 13:02:46,537 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 13:02:46,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:02:46 BoogieIcfgContainer [2023-12-21 13:02:46,539 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 13:02:46,539 INFO L158 Benchmark]: Toolchain (without parser) took 827211.25ms. Allocated memory was 270.5MB in the beginning and 770.7MB in the end (delta: 500.2MB). Free memory was 217.9MB in the beginning and 586.5MB in the end (delta: -368.6MB). Peak memory consumption was 558.4MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,539 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 176.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 13:02:46,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1143.91ms. Allocated memory is still 270.5MB. Free memory was 217.4MB in the beginning and 110.9MB in the end (delta: 106.6MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 368.02ms. Allocated memory is still 270.5MB. Free memory was 110.9MB in the beginning and 187.6MB in the end (delta: -76.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,540 INFO L158 Benchmark]: Boogie Preprocessor took 541.45ms. Allocated memory is still 270.5MB. Free memory was 187.6MB in the beginning and 157.6MB in the end (delta: 30.0MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,540 INFO L158 Benchmark]: RCFGBuilder took 8831.66ms. Allocated memory was 270.5MB in the beginning and 641.7MB in the end (delta: 371.2MB). Free memory was 157.6MB in the beginning and 420.4MB in the end (delta: -262.8MB). Peak memory consumption was 128.3MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,540 INFO L158 Benchmark]: TraceAbstraction took 816318.51ms. Allocated memory was 641.7MB in the beginning and 770.7MB in the end (delta: 129.0MB). Free memory was 419.9MB in the beginning and 586.5MB in the end (delta: -166.6MB). Peak memory consumption was 388.6MB. Max. memory is 8.0GB. [2023-12-21 13:02:46,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 176.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1143.91ms. Allocated memory is still 270.5MB. Free memory was 217.4MB in the beginning and 110.9MB in the end (delta: 106.6MB). Peak memory consumption was 107.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 368.02ms. Allocated memory is still 270.5MB. Free memory was 110.9MB in the beginning and 187.6MB in the end (delta: -76.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 541.45ms. Allocated memory is still 270.5MB. Free memory was 187.6MB in the beginning and 157.6MB in the end (delta: 30.0MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. * RCFGBuilder took 8831.66ms. Allocated memory was 270.5MB in the beginning and 641.7MB in the end (delta: 371.2MB). Free memory was 157.6MB in the beginning and 420.4MB in the end (delta: -262.8MB). Peak memory consumption was 128.3MB. Max. memory is 8.0GB. * TraceAbstraction took 816318.51ms. Allocated memory was 641.7MB in the beginning and 770.7MB in the end (delta: 129.0MB). Free memory was 419.9MB in the beginning and 586.5MB in the end (delta: -166.6MB). Peak memory consumption was 388.6MB. 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.bug3.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: 816.3s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 785.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 148 mSolverCounterUnknown, 109800 SdHoareTripleChecker+Valid, 766.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 107873 mSDsluCounter, 154493 SdHoareTripleChecker+Invalid, 746.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111153 mSDsCounter, 38886 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 101375 IncrementalHoareTripleChecker+Invalid, 140410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38886 mSolverCounterUnsat, 43340 mSDtfsCounter, 101375 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1253 GetRequests, 1012 SyntacticMatches, 3 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 5.7s 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: 6.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 23364 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 11.6s 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