/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.4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 12:48:57,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 12:48:57,150 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 12:48:57,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 12:48:57,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 12:48:57,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 12:48:57,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 12:48:57,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 12:48:57,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 12:48:57,183 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 12:48:57,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 12:48:57,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 12:48:57,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 12:48:57,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 12:48:57,185 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 12:48:57,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 12:48:57,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 12:48:57,185 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 12:48:57,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 12:48:57,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 12:48:57,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 12:48:57,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 12:48:57,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 12:48:57,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 12:48:57,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 12:48:57,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 12:48:57,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 12:48:57,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:48:57,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 12:48:57,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 12:48:57,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 12:48:57,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 12:48:57,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 12:48:57,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 12:48:57,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 12:48:57,191 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 12:48:57,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 12:48:57,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 12:48:57,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 12:48:57,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 12:48:57,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 12:48:57,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 12:48:57,407 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 12:48:57,407 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 12:48:57,408 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_ctm.4.c [2023-12-21 12:48:58,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 12:48:58,750 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 12:48:58,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_ctm.4.c [2023-12-21 12:48:58,768 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2022409/b93320e3670e4fdfafec102461702d06/FLAG3c7c8baaf [2023-12-21 12:48:59,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a2022409/b93320e3670e4fdfafec102461702d06 [2023-12-21 12:48:59,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 12:48:59,054 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 12:48:59,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 12:48:59,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 12:48:59,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 12:48:59,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:48:59,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c005b5 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 12:48:59,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:48:59,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 12:48:59,286 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.4.c[1868,1881] [2023-12-21 12:48:59,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:48:59,655 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 12:48:59,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok4.i","-S") [42] [2023-12-21 12:48:59,665 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.4.c[1868,1881] [2023-12-21 12:48:59,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 12:48:59,843 INFO L206 MainTranslator]: Completed translation [2023-12-21 12:48:59,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59 WrapperNode [2023-12-21 12:48:59,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 12:48:59,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 12:48:59,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 12:48:59,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 12:48:59,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:48:59,898 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,054 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8732 [2023-12-21 12:49:00,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 12:49:00,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 12:49:00,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 12:49:00,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 12:49:00,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,180 INFO L175 MemorySlicer]: Split 2508 memory accesses to 49 slices as follows [2, 80, 86, 37, 37, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46, 57, 46]. 3 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 490 writes are split as follows [0, 7, 7, 7, 7, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6, 15, 6]. [2023-12-21 12:49:00,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 12:49:00,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 12:49:00,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 12:49:00,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 12:49:00,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (1/1) ... [2023-12-21 12:49:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 12:49:00,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:49:00,485 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 12:49:00,503 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 12:49:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-12-21 12:49:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-12-21 12:49:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-12-21 12:49:00,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-12-21 12:49:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-12-21 12:49:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-12-21 12:49:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-12-21 12:49:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-12-21 12:49:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-12-21 12:49:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-12-21 12:49:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-12-21 12:49:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-12-21 12:49:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#32 [2023-12-21 12:49:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#33 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#34 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#35 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#36 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#37 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#38 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#39 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#40 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#41 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#42 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#43 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#44 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#45 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#46 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#47 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#48 [2023-12-21 12:49:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:49:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-21 12:49:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-12-21 12:49:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-12-21 12:49:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-12-21 12:49:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-12-21 12:49:00,524 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-12-21 12:49:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-12-21 12:49:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:49:00,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 12:49:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 12:49:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-12-21 12:49:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2023-12-21 12:49:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2023-12-21 12:49:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2023-12-21 12:49:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2023-12-21 12:49:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2023-12-21 12:49:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#32 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#33 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#34 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#35 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#36 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#37 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#38 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#39 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#40 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#41 [2023-12-21 12:49:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#42 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#43 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#44 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#45 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#46 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#47 [2023-12-21 12:49:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#48 [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-12-21 12:49:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-21 12:49:00,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-21 12:49:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 12:49:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-21 12:49:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-21 12:49:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:49:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-12-21 12:49:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-12-21 12:49:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-12-21 12:49:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-12-21 12:49:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-12-21 12:49:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-21 12:49:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-21 12:49:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-12-21 12:49:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-12-21 12:49:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-21 12:49:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-21 12:49:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-12-21 12:49:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-12-21 12:49:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-12-21 12:49:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-12-21 12:49:00,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-12-21 12:49:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-12-21 12:49:00,541 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-12-21 12:49:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-12-21 12:49:00,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-12-21 12:49:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:49:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 12:49:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 12:49:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2023-12-21 12:49:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#39 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#40 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#41 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#42 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#43 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#44 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#45 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#46 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#47 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#48 [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-12-21 12:49:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-12-21 12:49:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 12:49:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 12:49:01,080 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 12:49:01,083 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 12:49:08,037 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 12:49:08,172 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 12:49:08,173 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-21 12:49:08,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:49:08 BoogieIcfgContainer [2023-12-21 12:49:08,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 12:49:08,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 12:49:08,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 12:49:08,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 12:49:08,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:48:59" (1/3) ... [2023-12-21 12:49:08,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d78967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:49:08, skipping insertion in model container [2023-12-21 12:49:08,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:48:59" (2/3) ... [2023-12-21 12:49:08,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d78967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:49:08, skipping insertion in model container [2023-12-21 12:49:08,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:49:08" (3/3) ... [2023-12-21 12:49:08,178 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2023-12-21 12:49:08,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 12:49:08,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 12:49:08,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 12:49:08,241 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;@1a666c7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 12:49:08,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 12:49:08,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 2407 states, 2053 states have (on average 1.4943984413054068) internal successors, (3068), 2077 states have internal predecessors, (3068), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2023-12-21 12:49:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 12:49:08,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:49:08,261 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 12:49:08,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:49:08,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:49:08,264 INFO L85 PathProgramCache]: Analyzing trace with hash 949819127, now seen corresponding path program 1 times [2023-12-21 12:49:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:49:08,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089677655] [2023-12-21 12:49:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:49:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:49:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:49:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:49:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:09,230 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 12:49:09,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:49:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089677655] [2023-12-21 12:49:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089677655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:49:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:49:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 12:49:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328222023] [2023-12-21 12:49:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:49:09,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 12:49:09,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:49:09,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 12:49:09,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-21 12:49:09,259 INFO L87 Difference]: Start difference. First operand has 2407 states, 2053 states have (on average 1.4943984413054068) internal successors, (3068), 2077 states have internal predecessors, (3068), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) 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 12:49:13,965 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 12:49:17,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:22,029 WARN L539 Checker$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 12:49:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:49:27,716 INFO L93 Difference]: Finished difference Result 5512 states and 9212 transitions. [2023-12-21 12:49:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 12:49:27,718 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 12:49:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:49:27,760 INFO L225 Difference]: With dead ends: 5512 [2023-12-21 12:49:27,760 INFO L226 Difference]: Without dead ends: 3097 [2023-12-21 12:49:27,854 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 12:49:27,857 INFO L413 NwaCegarLoop]: 2312 mSDtfsCounter, 1114 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 3189 mSolverCounterSat, 670 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 3862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 3189 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-12-21 12:49:27,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 5065 Invalid, 3862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [670 Valid, 3189 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2023-12-21 12:49:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2023-12-21 12:49:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2397. [2023-12-21 12:49:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2397 states, 2044 states have (on average 1.158023483365949) internal successors, (2367), 2068 states have internal predecessors, (2367), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (307), 297 states have call predecessors, (307), 307 states have call successors, (307) [2023-12-21 12:49:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2397 states to 2397 states and 2982 transitions. [2023-12-21 12:49:28,053 INFO L78 Accepts]: Start accepts. Automaton has 2397 states and 2982 transitions. Word has length 143 [2023-12-21 12:49:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:49:28,054 INFO L495 AbstractCegarLoop]: Abstraction has 2397 states and 2982 transitions. [2023-12-21 12:49:28,054 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 12:49:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 2397 states and 2982 transitions. [2023-12-21 12:49:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:49:28,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:49:28,067 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 12:49:28,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 12:49:28,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:49:28,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:49:28,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1716689514, now seen corresponding path program 1 times [2023-12-21 12:49:28,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:49:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294155023] [2023-12-21 12:49:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:49:28,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:49:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:49:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:49:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:49:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:49:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:49:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:49:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:49:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:49:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:49:29,308 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 12:49:29,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:49:29,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294155023] [2023-12-21 12:49:29,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294155023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:49:29,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:49:29,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:49:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502313984] [2023-12-21 12:49:29,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:49:29,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:49:29,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:49:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:49:29,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:49:29,326 INFO L87 Difference]: Start difference. First operand 2397 states and 2982 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 12:49:34,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:38,560 WARN L539 Checker$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 12:49:42,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:46,603 WARN L539 Checker$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 12:49:50,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:49:54,664 WARN L539 Checker$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 12:50:09,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:13,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:17,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:21,926 WARN L539 Checker$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 12:50:25,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:29,980 WARN L539 Checker$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 12:50:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:50:30,349 INFO L93 Difference]: Finished difference Result 6300 states and 8548 transitions. [2023-12-21 12:50:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:50:30,350 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 12:50:30,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:50:30,366 INFO L225 Difference]: With dead ends: 6300 [2023-12-21 12:50:30,366 INFO L226 Difference]: Without dead ends: 3905 [2023-12-21 12:50:30,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:50:30,386 INFO L413 NwaCegarLoop]: 2233 mSDtfsCounter, 8149 mSDsluCounter, 7658 mSDsCounter, 0 mSdLazyCounter, 8863 mSolverCounterSat, 2605 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8289 SdHoareTripleChecker+Valid, 9891 SdHoareTripleChecker+Invalid, 11480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2605 IncrementalHoareTripleChecker+Valid, 8863 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.2s IncrementalHoareTripleChecker+Time [2023-12-21 12:50:30,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8289 Valid, 9891 Invalid, 11480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2605 Valid, 8863 Invalid, 12 Unknown, 0 Unchecked, 60.2s Time] [2023-12-21 12:50:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2023-12-21 12:50:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 2892. [2023-12-21 12:50:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2391 states have (on average 1.193224592220828) internal successors, (2853), 2421 states have internal predecessors, (2853), 423 states have call successors, (423), 77 states have call predecessors, (423), 77 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2023-12-21 12:50:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 3698 transitions. [2023-12-21 12:50:30,518 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 3698 transitions. Word has length 197 [2023-12-21 12:50:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:50:30,518 INFO L495 AbstractCegarLoop]: Abstraction has 2892 states and 3698 transitions. [2023-12-21 12:50:30,519 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 12:50:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 3698 transitions. [2023-12-21 12:50:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:50:30,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:50:30,522 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 12:50:30,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 12:50:30,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:50:30,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:50:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash -430060408, now seen corresponding path program 1 times [2023-12-21 12:50:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:50:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254227509] [2023-12-21 12:50:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:50:30,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:50:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:50:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:50:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:50:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:50:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:50:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:50:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:50:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:50:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:50:31,457 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 12:50:31,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:50:31,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254227509] [2023-12-21 12:50:31,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254227509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:50:31,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:50:31,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:50:31,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952188502] [2023-12-21 12:50:31,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:50:31,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:50:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:50:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:50:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:50:31,460 INFO L87 Difference]: Start difference. First operand 2892 states and 3698 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 12:50:36,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:40,807 WARN L539 Checker$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 12:50:44,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:48,852 WARN L539 Checker$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 12:50:52,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:50:56,897 WARN L539 Checker$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 12:51:11,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:15,862 WARN L539 Checker$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 12:51:19,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:23,910 WARN L539 Checker$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 12:51:27,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:31,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:51:32,349 INFO L93 Difference]: Finished difference Result 7389 states and 10204 transitions. [2023-12-21 12:51:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:51:32,349 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 12:51:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:51:32,398 INFO L225 Difference]: With dead ends: 7389 [2023-12-21 12:51:32,398 INFO L226 Difference]: Without dead ends: 4499 [2023-12-21 12:51:32,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:51:32,417 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 5920 mSDsluCounter, 8228 mSDsCounter, 0 mSdLazyCounter, 9247 mSolverCounterSat, 1744 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6075 SdHoareTripleChecker+Valid, 10447 SdHoareTripleChecker+Invalid, 11003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1744 IncrementalHoareTripleChecker+Valid, 9247 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.1s IncrementalHoareTripleChecker+Time [2023-12-21 12:51:32,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6075 Valid, 10447 Invalid, 11003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1744 Valid, 9247 Invalid, 12 Unknown, 0 Unchecked, 60.1s Time] [2023-12-21 12:51:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4499 states. [2023-12-21 12:51:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4499 to 3247. [2023-12-21 12:51:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 2648 states have (on average 1.2141238670694865) internal successors, (3215), 2687 states have internal predecessors, (3215), 500 states have call successors, (500), 98 states have call predecessors, (500), 98 states have return successors, (499), 481 states have call predecessors, (499), 499 states have call successors, (499) [2023-12-21 12:51:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 4214 transitions. [2023-12-21 12:51:32,588 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 4214 transitions. Word has length 198 [2023-12-21 12:51:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:51:32,589 INFO L495 AbstractCegarLoop]: Abstraction has 3247 states and 4214 transitions. [2023-12-21 12:51:32,589 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 12:51:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 4214 transitions. [2023-12-21 12:51:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-21 12:51:32,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:51:32,593 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 12:51:32,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 12:51:32,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:51:32,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:51:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash -711982555, now seen corresponding path program 1 times [2023-12-21 12:51:32,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:51:32,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561967044] [2023-12-21 12:51:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:51:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:51:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:51:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:51:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 12:51:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 12:51:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 12:51:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:51:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 12:51:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:51:34,239 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 12:51:34,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:51:34,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561967044] [2023-12-21 12:51:34,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561967044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:51:34,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:51:34,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 12:51:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453826153] [2023-12-21 12:51:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:51:34,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 12:51:34,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:51:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 12:51:34,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:51:34,241 INFO L87 Difference]: Start difference. First operand 3247 states and 4214 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 12:51:39,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:43,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:47,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:51,498 WARN L539 Checker$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 12:51:55,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:51:59,553 WARN L539 Checker$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 12:52:03,576 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 12:52:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:52:15,952 INFO L93 Difference]: Finished difference Result 9446 states and 13336 transitions. [2023-12-21 12:52:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 12:52:15,953 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 12:52:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:52:15,978 INFO L225 Difference]: With dead ends: 9446 [2023-12-21 12:52:15,978 INFO L226 Difference]: Without dead ends: 6201 [2023-12-21 12:52:15,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-12-21 12:52:15,994 INFO L413 NwaCegarLoop]: 2280 mSDtfsCounter, 8959 mSDsluCounter, 8861 mSDsCounter, 0 mSdLazyCounter, 8389 mSolverCounterSat, 3857 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9102 SdHoareTripleChecker+Valid, 11141 SdHoareTripleChecker+Invalid, 12253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3857 IncrementalHoareTripleChecker+Valid, 8389 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2023-12-21 12:52:15,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9102 Valid, 11141 Invalid, 12253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3857 Valid, 8389 Invalid, 7 Unknown, 0 Unchecked, 40.5s Time] [2023-12-21 12:52:15,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6201 states. [2023-12-21 12:52:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6201 to 4162. [2023-12-21 12:52:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 3294 states have (on average 1.2522768670309654) internal successors, (4125), 3350 states have internal predecessors, (4125), 720 states have call successors, (720), 146 states have call predecessors, (720), 147 states have return successors, (720), 695 states have call predecessors, (720), 719 states have call successors, (720) [2023-12-21 12:52:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5565 transitions. [2023-12-21 12:52:16,260 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5565 transitions. Word has length 194 [2023-12-21 12:52:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:52:16,261 INFO L495 AbstractCegarLoop]: Abstraction has 4162 states and 5565 transitions. [2023-12-21 12:52:16,261 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 12:52:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5565 transitions. [2023-12-21 12:52:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-21 12:52:16,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:52:16,265 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 12:52:16,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 12:52:16,266 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:52:16,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:52:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash -411850270, now seen corresponding path program 1 times [2023-12-21 12:52:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:52:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524559800] [2023-12-21 12:52:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:52:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:52:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:52:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:52:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 12:52:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 12:52:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 12:52:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 12:52:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 12:52:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:17,115 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 12:52:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:52:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524559800] [2023-12-21 12:52:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524559800] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:52:17,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31527350] [2023-12-21 12:52:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:17,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:17,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:52:17,136 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 12:52:17,142 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 12:52:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:18,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 2806 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 12:52:18,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:52:18,578 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 12:52:18,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:52:18,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31527350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:52:18,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:52:18,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:52:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707797450] [2023-12-21 12:52:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:52:18,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:52:18,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:52:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:52:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:52:18,579 INFO L87 Difference]: Start difference. First operand 4162 states and 5565 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 12:52:23,126 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 12:52:27,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:31,185 WARN L539 Checker$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 12:52:35,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:41,164 WARN L539 Checker$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 12:52:45,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:52:49,227 WARN L539 Checker$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 12:52:53,253 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 12:52:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:52:53,268 INFO L93 Difference]: Finished difference Result 8555 states and 11418 transitions. [2023-12-21 12:52:53,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:52:53,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 197 [2023-12-21 12:52:53,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:52:53,313 INFO L225 Difference]: With dead ends: 8555 [2023-12-21 12:52:53,314 INFO L226 Difference]: Without dead ends: 4284 [2023-12-21 12:52:53,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:52:53,331 INFO L413 NwaCegarLoop]: 3435 mSDtfsCounter, 1424 mSDsluCounter, 8018 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 11453 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2023-12-21 12:52:53,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 11453 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1867 Invalid, 8 Unknown, 0 Unchecked, 34.4s Time] [2023-12-21 12:52:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2023-12-21 12:52:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 4149. [2023-12-21 12:52:53,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 3286 states have (on average 1.251065124771759) internal successors, (4111), 3342 states have internal predecessors, (4111), 715 states have call successors, (715), 146 states have call predecessors, (715), 147 states have return successors, (715), 690 states have call predecessors, (715), 714 states have call successors, (715) [2023-12-21 12:52:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 5541 transitions. [2023-12-21 12:52:53,623 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 5541 transitions. Word has length 197 [2023-12-21 12:52:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:52:53,623 INFO L495 AbstractCegarLoop]: Abstraction has 4149 states and 5541 transitions. [2023-12-21 12:52:53,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 12:52:53,623 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 5541 transitions. [2023-12-21 12:52:53,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:52:53,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:52:53,626 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 12:52:53,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 12:52:53,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:53,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:52:53,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:52:53,834 INFO L85 PathProgramCache]: Analyzing trace with hash -557041661, now seen corresponding path program 1 times [2023-12-21 12:52:53,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:52:53,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013412738] [2023-12-21 12:52:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:52:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:52:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:52:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:52:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:52:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:52:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:52:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:52:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:52:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 12:52:54,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:52:54,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013412738] [2023-12-21 12:52:54,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013412738] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:52:54,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961876950] [2023-12-21 12:52:54,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:52:54,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:52:54,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:52:54,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 12:52:54,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 12:52:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:52:55,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:52:55,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:52:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-21 12:52:56,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:52:56,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961876950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:52:56,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:52:56,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:52:56,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580821306] [2023-12-21 12:52:56,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:52:56,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:52:56,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:52:56,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:52:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:52:56,040 INFO L87 Difference]: Start difference. First operand 4149 states and 5541 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 12:53:00,841 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 12:53:04,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:08,877 WARN L539 Checker$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 12:53:12,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:18,527 WARN L539 Checker$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 12:53:22,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:26,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:30,610 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 12:53:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:30,710 INFO L93 Difference]: Finished difference Result 8487 states and 11314 transitions. [2023-12-21 12:53:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:30,711 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 12:53:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:30,750 INFO L225 Difference]: With dead ends: 8487 [2023-12-21 12:53:30,751 INFO L226 Difference]: Without dead ends: 4276 [2023-12-21 12:53:30,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:53:30,791 INFO L413 NwaCegarLoop]: 3426 mSDtfsCounter, 1184 mSDsluCounter, 6145 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 9571 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:30,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 9571 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1271 Invalid, 8 Unknown, 0 Unchecked, 34.4s Time] [2023-12-21 12:53:30,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2023-12-21 12:53:31,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4139. [2023-12-21 12:53:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 3280 states have (on average 1.25) internal successors, (4100), 3336 states have internal predecessors, (4100), 711 states have call successors, (711), 146 states have call predecessors, (711), 147 states have return successors, (711), 686 states have call predecessors, (711), 710 states have call successors, (711) [2023-12-21 12:53:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 5522 transitions. [2023-12-21 12:53:31,032 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 5522 transitions. Word has length 198 [2023-12-21 12:53:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:31,032 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 5522 transitions. [2023-12-21 12:53:31,033 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 12:53:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 5522 transitions. [2023-12-21 12:53:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-21 12:53:31,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:31,036 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 12:53:31,058 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 12:53:31,247 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 12:53:31,247 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:31,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:31,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1966113173, now seen corresponding path program 1 times [2023-12-21 12:53:31,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:31,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876159874] [2023-12-21 12:53:31,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:31,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 12:53:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 12:53:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 12:53:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 12:53:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:32,138 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 12:53:32,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876159874] [2023-12-21 12:53:32,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876159874] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 12:53:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389852958] [2023-12-21 12:53:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:32,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 12:53:32,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 12:53:32,139 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 12:53:32,141 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 12:53:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:33,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 2807 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 12:53:33,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 12:53:33,499 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 12:53:33,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 12:53:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389852958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 12:53:33,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2023-12-21 12:53:33,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250737498] [2023-12-21 12:53:33,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:33,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 12:53:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:33,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 12:53:33,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-21 12:53:33,501 INFO L87 Difference]: Start difference. First operand 4139 states and 5522 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 12:53:38,123 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 12:53:42,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:46,185 WARN L539 Checker$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 12:53:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:53:48,133 INFO L93 Difference]: Finished difference Result 9166 states and 12229 transitions. [2023-12-21 12:53:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 12:53:48,134 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 12:53:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:53:48,154 INFO L225 Difference]: With dead ends: 9166 [2023-12-21 12:53:48,154 INFO L226 Difference]: Without dead ends: 5029 [2023-12-21 12:53:48,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-12-21 12:53:48,168 INFO L413 NwaCegarLoop]: 3290 mSDtfsCounter, 1695 mSDsluCounter, 6285 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 9575 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:53:48,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 9575 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1667 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2023-12-21 12:53:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2023-12-21 12:53:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 4700. [2023-12-21 12:53:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 3669 states have (on average 1.2662850913055328) internal successors, (4646), 3736 states have internal predecessors, (4646), 854 states have call successors, (854), 174 states have call predecessors, (854), 176 states have return successors, (855), 825 states have call predecessors, (855), 853 states have call successors, (855) [2023-12-21 12:53:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6355 transitions. [2023-12-21 12:53:48,529 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6355 transitions. Word has length 198 [2023-12-21 12:53:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:53:48,529 INFO L495 AbstractCegarLoop]: Abstraction has 4700 states and 6355 transitions. [2023-12-21 12:53:48,529 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 12:53:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6355 transitions. [2023-12-21 12:53:48,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-21 12:53:48,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:53:48,533 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 12:53:48,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 12:53:48,744 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 12:53:48,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:53:48,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:53:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1740768521, now seen corresponding path program 1 times [2023-12-21 12:53:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:53:48,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450545252] [2023-12-21 12:53:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:53:48,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:53:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:53:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:53:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:53:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:53:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:53:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 12:53:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 12:53:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:53:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:53:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:53:49,529 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 12:53:49,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:53:49,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450545252] [2023-12-21 12:53:49,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450545252] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:53:49,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:53:49,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:53:49,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952183040] [2023-12-21 12:53:49,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:53:49,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:53:49,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:53:49,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:53:49,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:53:49,531 INFO L87 Difference]: Start difference. First operand 4700 states and 6355 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 12:53:54,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:53:58,118 WARN L539 Checker$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 12:54:02,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:06,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:10,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:14,233 WARN L539 Checker$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 12:54:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:54:22,974 INFO L93 Difference]: Finished difference Result 10535 states and 15077 transitions. [2023-12-21 12:54:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:54:22,975 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 12:54:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:54:22,994 INFO L225 Difference]: With dead ends: 10535 [2023-12-21 12:54:22,995 INFO L226 Difference]: Without dead ends: 5837 [2023-12-21 12:54:23,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:54:23,006 INFO L413 NwaCegarLoop]: 2255 mSDtfsCounter, 10035 mSDsluCounter, 3965 mSDsCounter, 0 mSdLazyCounter, 5748 mSolverCounterSat, 3889 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10196 SdHoareTripleChecker+Valid, 6220 SdHoareTripleChecker+Invalid, 9643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3889 IncrementalHoareTripleChecker+Valid, 5748 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2023-12-21 12:54:23,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10196 Valid, 6220 Invalid, 9643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3889 Valid, 5748 Invalid, 6 Unknown, 0 Unchecked, 32.7s Time] [2023-12-21 12:54:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2023-12-21 12:54:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 4137. [2023-12-21 12:54:23,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 3279 states have (on average 1.249161329673681) internal successors, (4096), 3335 states have internal predecessors, (4096), 710 states have call successors, (710), 146 states have call predecessors, (710), 147 states have return successors, (710), 685 states have call predecessors, (710), 709 states have call successors, (710) [2023-12-21 12:54:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5516 transitions. [2023-12-21 12:54:23,254 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5516 transitions. Word has length 207 [2023-12-21 12:54:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:54:23,254 INFO L495 AbstractCegarLoop]: Abstraction has 4137 states and 5516 transitions. [2023-12-21 12:54:23,254 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 12:54:23,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5516 transitions. [2023-12-21 12:54:23,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-21 12:54:23,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:54:23,259 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 12:54:23,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 12:54:23,259 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:54:23,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:54:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1394528738, now seen corresponding path program 1 times [2023-12-21 12:54:23,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:54:23,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934200546] [2023-12-21 12:54:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:54:23,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:54:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:54:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:54:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:54:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:54:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:54:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:54:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 12:54:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 12:54:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 12:54:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:54:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:54:23,994 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 12:54:23,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:54:23,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934200546] [2023-12-21 12:54:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934200546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:54:23,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:54:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:54:23,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131324043] [2023-12-21 12:54:23,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:54:23,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:54:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:54:23,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:54:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:54:23,996 INFO L87 Difference]: Start difference. First operand 4137 states and 5516 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 12:54:29,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:33,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:37,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:41,489 WARN L539 Checker$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 12:54:45,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:54:49,536 WARN L539 Checker$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 12:55:04,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:08,614 WARN L539 Checker$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 12:55:12,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:16,663 WARN L539 Checker$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 12:55:20,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:24,721 WARN L539 Checker$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 12:55:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:55:25,095 INFO L93 Difference]: Finished difference Result 10102 states and 14378 transitions. [2023-12-21 12:55:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:55:25,096 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 12:55:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:55:25,113 INFO L225 Difference]: With dead ends: 10102 [2023-12-21 12:55:25,113 INFO L226 Difference]: Without dead ends: 5967 [2023-12-21 12:55:25,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:55:25,124 INFO L413 NwaCegarLoop]: 2297 mSDtfsCounter, 9414 mSDsluCounter, 6335 mSDsCounter, 0 mSdLazyCounter, 7694 mSolverCounterSat, 3173 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9562 SdHoareTripleChecker+Valid, 8632 SdHoareTripleChecker+Invalid, 10879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3173 IncrementalHoareTripleChecker+Valid, 7694 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.3s IncrementalHoareTripleChecker+Time [2023-12-21 12:55:25,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9562 Valid, 8632 Invalid, 10879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3173 Valid, 7694 Invalid, 12 Unknown, 0 Unchecked, 60.3s Time] [2023-12-21 12:55:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2023-12-21 12:55:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 4135. [2023-12-21 12:55:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 3278 states have (on average 1.2489322757779133) internal successors, (4094), 3334 states have internal predecessors, (4094), 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 12:55:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5512 transitions. [2023-12-21 12:55:25,430 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5512 transitions. Word has length 210 [2023-12-21 12:55:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:55:25,430 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5512 transitions. [2023-12-21 12:55:25,430 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 12:55:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5512 transitions. [2023-12-21 12:55:25,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-21 12:55:25,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:55:25,434 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 12:55:25,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 12:55:25,434 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:55:25,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:55:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -439874679, now seen corresponding path program 1 times [2023-12-21 12:55:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:55:25,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461440893] [2023-12-21 12:55:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:55:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:55:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:55:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:55:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:55:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:55:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:55:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:55:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 12:55:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 12:55:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:55:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:55:26,217 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 12:55:26,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:55:26,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461440893] [2023-12-21 12:55:26,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461440893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:55:26,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:55:26,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:55:26,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301291675] [2023-12-21 12:55:26,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:55:26,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:55:26,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:55:26,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:55:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:55:26,218 INFO L87 Difference]: Start difference. First operand 4135 states and 5512 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 12:55:31,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:35,384 WARN L539 Checker$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 12:55:39,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:43,466 WARN L539 Checker$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 12:55:47,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:55:51,523 WARN L539 Checker$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 12:56:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:56:02,045 INFO L93 Difference]: Finished difference Result 9967 states and 14223 transitions. [2023-12-21 12:56:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:56:02,046 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 12:56:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:56:02,095 INFO L225 Difference]: With dead ends: 9967 [2023-12-21 12:56:02,096 INFO L226 Difference]: Without dead ends: 5834 [2023-12-21 12:56:02,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:56:02,127 INFO L413 NwaCegarLoop]: 2183 mSDtfsCounter, 5795 mSDsluCounter, 6792 mSDsCounter, 0 mSdLazyCounter, 8732 mSolverCounterSat, 1752 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5952 SdHoareTripleChecker+Valid, 8975 SdHoareTripleChecker+Invalid, 10490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1752 IncrementalHoareTripleChecker+Valid, 8732 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2023-12-21 12:56:02,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5952 Valid, 8975 Invalid, 10490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1752 Valid, 8732 Invalid, 6 Unknown, 0 Unchecked, 35.0s Time] [2023-12-21 12:56:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2023-12-21 12:56:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 4135. [2023-12-21 12:56:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 3278 states have (on average 1.2486272117144601) internal successors, (4093), 3334 states have internal predecessors, (4093), 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 12:56:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 5511 transitions. [2023-12-21 12:56:02,425 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 5511 transitions. Word has length 211 [2023-12-21 12:56:02,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:56:02,425 INFO L495 AbstractCegarLoop]: Abstraction has 4135 states and 5511 transitions. [2023-12-21 12:56:02,425 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 12:56:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 5511 transitions. [2023-12-21 12:56:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-21 12:56:02,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:56:02,429 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 12:56:02,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 12:56:02,429 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:56:02,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:56:02,430 INFO L85 PathProgramCache]: Analyzing trace with hash -73470188, now seen corresponding path program 1 times [2023-12-21 12:56:02,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:56:02,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507843163] [2023-12-21 12:56:02,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:56:02,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:56:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:56:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:56:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:56:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:56:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:56:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:56:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 12:56:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 12:56:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 12:56:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:56:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:56:03,154 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 12:56:03,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:56:03,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507843163] [2023-12-21 12:56:03,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507843163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:56:03,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:56:03,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:56:03,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957404623] [2023-12-21 12:56:03,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:56:03,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:56:03,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:56:03,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:56:03,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:56:03,157 INFO L87 Difference]: Start difference. First operand 4135 states and 5511 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 12:56:07,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:11,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:15,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:19,822 WARN L539 Checker$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 12:56:23,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:27,866 WARN L539 Checker$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 12:56:39,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:43,970 WARN L539 Checker$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 12:56:47,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:56:52,011 WARN L539 Checker$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 12:56:56,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:00,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:00,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:57:00,169 INFO L93 Difference]: Finished difference Result 10097 states and 14366 transitions. [2023-12-21 12:57:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:57:00,169 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 12:57:00,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:57:00,186 INFO L225 Difference]: With dead ends: 10097 [2023-12-21 12:57:00,186 INFO L226 Difference]: Without dead ends: 5964 [2023-12-21 12:57:00,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:57:00,197 INFO L413 NwaCegarLoop]: 2246 mSDtfsCounter, 10792 mSDsluCounter, 4014 mSDsCounter, 0 mSdLazyCounter, 5525 mSolverCounterSat, 4080 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10942 SdHoareTripleChecker+Valid, 6260 SdHoareTripleChecker+Invalid, 9617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4080 IncrementalHoareTripleChecker+Valid, 5525 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.2s IncrementalHoareTripleChecker+Time [2023-12-21 12:57:00,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10942 Valid, 6260 Invalid, 9617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4080 Valid, 5525 Invalid, 12 Unknown, 0 Unchecked, 56.2s Time] [2023-12-21 12:57:00,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-12-21 12:57:00,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 4133. [2023-12-21 12:57:00,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3277 states have (on average 1.2483979249313397) internal successors, (4091), 3333 states have internal predecessors, (4091), 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 12:57:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5507 transitions. [2023-12-21 12:57:00,452 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5507 transitions. Word has length 214 [2023-12-21 12:57:00,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:57:00,452 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5507 transitions. [2023-12-21 12:57:00,452 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 12:57:00,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5507 transitions. [2023-12-21 12:57:00,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-21 12:57:00,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:57:00,460 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 12:57:00,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 12:57:00,460 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:57:00,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:57:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash 932572146, now seen corresponding path program 1 times [2023-12-21 12:57:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:57:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772882412] [2023-12-21 12:57:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:57:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:57:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:57:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:57:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:57:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:57:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:57:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:57:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:57:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 12:57:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:57:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:01,250 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 12:57:01,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:57:01,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772882412] [2023-12-21 12:57:01,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772882412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:57:01,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:57:01,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:57:01,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962916121] [2023-12-21 12:57:01,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:57:01,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:57:01,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:57:01,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:57:01,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:57:01,252 INFO L87 Difference]: Start difference. First operand 4133 states and 5507 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, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 12:57:06,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:10,194 WARN L539 Checker$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 12:57:14,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:18,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:22,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:30,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:57:30,591 INFO L93 Difference]: Finished difference Result 9962 states and 14209 transitions. [2023-12-21 12:57:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 12:57:30,591 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, (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 12:57:30,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:57:30,613 INFO L225 Difference]: With dead ends: 9962 [2023-12-21 12:57:30,613 INFO L226 Difference]: Without dead ends: 5831 [2023-12-21 12:57:30,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 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 12:57:30,625 INFO L413 NwaCegarLoop]: 2155 mSDtfsCounter, 3842 mSDsluCounter, 7383 mSDsCounter, 0 mSdLazyCounter, 6142 mSolverCounterSat, 1998 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 9538 SdHoareTripleChecker+Invalid, 8145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1998 IncrementalHoareTripleChecker+Valid, 6142 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2023-12-21 12:57:30,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 9538 Invalid, 8145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1998 Valid, 6142 Invalid, 5 Unknown, 0 Unchecked, 28.6s Time] [2023-12-21 12:57:30,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2023-12-21 12:57:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 4133. [2023-12-21 12:57:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4133 states, 3277 states have (on average 1.2480927677754043) internal successors, (4090), 3333 states have internal predecessors, (4090), 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 12:57:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 5506 transitions. [2023-12-21 12:57:30,873 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 5506 transitions. Word has length 215 [2023-12-21 12:57:30,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:57:30,873 INFO L495 AbstractCegarLoop]: Abstraction has 4133 states and 5506 transitions. [2023-12-21 12:57:30,874 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, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 12:57:30,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 5506 transitions. [2023-12-21 12:57:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 12:57:30,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:57:30,876 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, 1, 1, 1] [2023-12-21 12:57:30,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 12:57:30,877 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:57:30,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:57:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1052546875, now seen corresponding path program 1 times [2023-12-21 12:57:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:57:30,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698654342] [2023-12-21 12:57:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:57:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:57:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:57:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:57:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:57:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:57:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:57:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:57:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 12:57:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:57:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 12:57:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 12:57:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:57:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:57:31,599 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 12:57:31,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:57:31,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698654342] [2023-12-21 12:57:31,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698654342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:57:31,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:57:31,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 12:57:31,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044624271] [2023-12-21 12:57:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:57:31,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 12:57:31,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:57:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 12:57:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 12:57:31,601 INFO L87 Difference]: Start difference. First operand 4133 states and 5506 transitions. Second operand has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 6 states have internal predecessors, (184), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 12:57:36,793 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 12:57:40,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:44,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:48,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:52,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:57:56,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:11,715 WARN L539 Checker$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 12:58:15,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:19,778 WARN L539 Checker$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 12:58:23,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:27,831 WARN L539 Checker$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 12:58:31,872 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 12:58:32,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:58:32,245 INFO L93 Difference]: Finished difference Result 10092 states and 14353 transitions. [2023-12-21 12:58:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:58:32,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 6 states have internal predecessors, (184), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 218 [2023-12-21 12:58:32,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:58:32,261 INFO L225 Difference]: With dead ends: 10092 [2023-12-21 12:58:32,261 INFO L226 Difference]: Without dead ends: 5961 [2023-12-21 12:58:32,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 12:58:32,272 INFO L413 NwaCegarLoop]: 2339 mSDtfsCounter, 9309 mSDsluCounter, 6383 mSDsCounter, 0 mSdLazyCounter, 7545 mSolverCounterSat, 3091 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9463 SdHoareTripleChecker+Valid, 8722 SdHoareTripleChecker+Invalid, 10648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3091 IncrementalHoareTripleChecker+Valid, 7545 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.8s IncrementalHoareTripleChecker+Time [2023-12-21 12:58:32,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9463 Valid, 8722 Invalid, 10648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3091 Valid, 7545 Invalid, 12 Unknown, 0 Unchecked, 59.8s Time] [2023-12-21 12:58:32,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2023-12-21 12:58:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 4129. [2023-12-21 12:58:32,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 3275 states have (on average 1.2476335877862594) internal successors, (4086), 3331 states have internal predecessors, (4086), 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 12:58:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 5498 transitions. [2023-12-21 12:58:32,536 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 5498 transitions. Word has length 218 [2023-12-21 12:58:32,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:58:32,536 INFO L495 AbstractCegarLoop]: Abstraction has 4129 states and 5498 transitions. [2023-12-21 12:58:32,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 6 states have internal predecessors, (184), 4 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 12:58:32,537 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 5498 transitions. [2023-12-21 12:58:32,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-21 12:58:32,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:58:32,539 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 12:58:32,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 12:58:32,539 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:58:32,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:58:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1967322771, now seen corresponding path program 1 times [2023-12-21 12:58:32,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:58:32,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328235443] [2023-12-21 12:58:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:58:32,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:58:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:58:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:58:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:58:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:58:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:58:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:58:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:58:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 12:58:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 12:58:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:58:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:58:33,230 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 12:58:33,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:58:33,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328235443] [2023-12-21 12:58:33,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328235443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:58:33,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:58:33,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:58:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606192213] [2023-12-21 12:58:33,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:58:33,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:58:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:58:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:58:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:58:33,231 INFO L87 Difference]: Start difference. First operand 4129 states and 5498 transitions. Second operand has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 12:58:38,667 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 12:58:42,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:46,705 WARN L539 Checker$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 12:58:50,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:58:54,772 WARN L539 Checker$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 12:59:07,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:11,233 WARN L539 Checker$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 12:59:15,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:19,277 WARN L539 Checker$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 12:59:23,318 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 12:59:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 12:59:23,503 INFO L93 Difference]: Finished difference Result 10081 states and 14328 transitions. [2023-12-21 12:59:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 12:59:23,503 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 12:59:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 12:59:23,517 INFO L225 Difference]: With dead ends: 10081 [2023-12-21 12:59:23,518 INFO L226 Difference]: Without dead ends: 5954 [2023-12-21 12:59:23,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 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 12:59:23,529 INFO L413 NwaCegarLoop]: 2241 mSDtfsCounter, 5209 mSDsluCounter, 6832 mSDsCounter, 0 mSdLazyCounter, 5659 mSolverCounterSat, 2112 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5325 SdHoareTripleChecker+Valid, 9073 SdHoareTripleChecker+Invalid, 7781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2112 IncrementalHoareTripleChecker+Valid, 5659 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.5s IncrementalHoareTripleChecker+Time [2023-12-21 12:59:23,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5325 Valid, 9073 Invalid, 7781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2112 Valid, 5659 Invalid, 10 Unknown, 0 Unchecked, 49.5s Time] [2023-12-21 12:59:23,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2023-12-21 12:59:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 4127. [2023-12-21 12:59:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4127 states, 3274 states have (on average 1.2474037874160049) internal successors, (4084), 3330 states have internal predecessors, (4084), 705 states have call successors, (705), 146 states have call predecessors, (705), 147 states have return successors, (705), 680 states have call predecessors, (705), 704 states have call successors, (705) [2023-12-21 12:59:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4127 states to 4127 states and 5494 transitions. [2023-12-21 12:59:23,788 INFO L78 Accepts]: Start accepts. Automaton has 4127 states and 5494 transitions. Word has length 218 [2023-12-21 12:59:23,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 12:59:23,788 INFO L495 AbstractCegarLoop]: Abstraction has 4127 states and 5494 transitions. [2023-12-21 12:59:23,788 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 12:59:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4127 states and 5494 transitions. [2023-12-21 12:59:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 12:59:23,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 12:59:23,791 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 12:59:23,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 12:59:23,791 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 12:59:23,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 12:59:23,791 INFO L85 PathProgramCache]: Analyzing trace with hash -722598796, now seen corresponding path program 1 times [2023-12-21 12:59:23,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 12:59:23,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470469752] [2023-12-21 12:59:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 12:59:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 12:59:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 12:59:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 12:59:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 12:59:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 12:59:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 12:59:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 12:59:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 12:59:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 12:59:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 12:59:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 12:59:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 12:59:24,518 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 12:59:24,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 12:59:24,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470469752] [2023-12-21 12:59:24,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470469752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 12:59:24,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 12:59:24,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 12:59:24,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103284526] [2023-12-21 12:59:24,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 12:59:24,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 12:59:24,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 12:59:24,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 12:59:24,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 12:59:24,520 INFO L87 Difference]: Start difference. First operand 4127 states and 5494 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 12:59:29,325 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 12:59:33,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:37,382 WARN L539 Checker$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 12:59:41,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 12:59:45,429 WARN L539 Checker$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 12:59:57,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:01,372 WARN L539 Checker$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 13:00:05,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:09,439 WARN L539 Checker$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 13:00:13,464 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 13:00:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:00:13,672 INFO L93 Difference]: Finished difference Result 10077 states and 14315 transitions. [2023-12-21 13:00:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:00:13,672 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 13:00:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:00:13,688 INFO L225 Difference]: With dead ends: 10077 [2023-12-21 13:00:13,688 INFO L226 Difference]: Without dead ends: 5952 [2023-12-21 13:00:13,700 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 13:00:13,706 INFO L413 NwaCegarLoop]: 2147 mSDtfsCounter, 5400 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 5428 mSolverCounterSat, 2050 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5535 SdHoareTripleChecker+Valid, 8874 SdHoareTripleChecker+Invalid, 7488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2050 IncrementalHoareTripleChecker+Valid, 5428 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:00:13,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5535 Valid, 8874 Invalid, 7488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2050 Valid, 5428 Invalid, 10 Unknown, 0 Unchecked, 48.4s Time] [2023-12-21 13:00:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2023-12-21 13:00:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 4125. [2023-12-21 13:00:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.2471738466238924) internal successors, (4082), 3329 states have internal predecessors, (4082), 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 13:00:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5490 transitions. [2023-12-21 13:00:14,047 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5490 transitions. Word has length 219 [2023-12-21 13:00:14,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:00:14,047 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5490 transitions. [2023-12-21 13:00:14,047 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 13:00:14,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5490 transitions. [2023-12-21 13:00:14,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-21 13:00:14,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:00:14,050 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 13:00:14,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:00:14,050 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:00:14,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:00:14,050 INFO L85 PathProgramCache]: Analyzing trace with hash 42734946, now seen corresponding path program 1 times [2023-12-21 13:00:14,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:00:14,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442000522] [2023-12-21 13:00:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:00:14,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:00:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:00:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:00:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:00:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:00:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:00:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:00:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:00:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 13:00:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:00:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:14,826 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 13:00:14,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:00:14,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442000522] [2023-12-21 13:00:14,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442000522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:00:14,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:00:14,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:00:14,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577948222] [2023-12-21 13:00:14,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:00:14,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:00:14,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:00:14,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:00:14,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:00:14,828 INFO L87 Difference]: Start difference. First operand 4125 states and 5490 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 13:00:20,373 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 13:00:24,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:28,433 WARN L539 Checker$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 13:00:32,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:36,494 WARN L539 Checker$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 13:00:45,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:00:45,538 INFO L93 Difference]: Finished difference Result 9940 states and 14158 transitions. [2023-12-21 13:00:45,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:00:45,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 219 [2023-12-21 13:00:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:00:45,572 INFO L225 Difference]: With dead ends: 9940 [2023-12-21 13:00:45,572 INFO L226 Difference]: Without dead ends: 5817 [2023-12-21 13:00:45,584 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 13:00:45,584 INFO L413 NwaCegarLoop]: 2240 mSDtfsCounter, 3643 mSDsluCounter, 8920 mSDsCounter, 0 mSdLazyCounter, 6329 mSolverCounterSat, 1876 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3720 SdHoareTripleChecker+Valid, 11160 SdHoareTripleChecker+Invalid, 8210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1876 IncrementalHoareTripleChecker+Valid, 6329 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:00:45,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3720 Valid, 11160 Invalid, 8210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1876 Valid, 6329 Invalid, 5 Unknown, 0 Unchecked, 29.9s Time] [2023-12-21 13:00:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2023-12-21 13:00:45,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 4125. [2023-12-21 13:00:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 3273 states have (on average 1.246868316529178) internal successors, (4081), 3329 states have internal predecessors, (4081), 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 13:00:45,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5489 transitions. [2023-12-21 13:00:45,973 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5489 transitions. Word has length 219 [2023-12-21 13:00:45,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:00:45,974 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5489 transitions. [2023-12-21 13:00:45,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.875) internal successors, (183), 5 states have internal predecessors, (183), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 13:00:45,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5489 transitions. [2023-12-21 13:00:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-21 13:00:45,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:00:45,977 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:00:45,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:00:45,977 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:00:45,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:00:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash 22881031, now seen corresponding path program 1 times [2023-12-21 13:00:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:00:45,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472448206] [2023-12-21 13:00:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:00:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:00:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:00:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:00:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:00:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:00:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:00:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:00:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:00:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:00:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 13:00:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 13:00:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:00:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:00:46,717 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 13:00:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:00:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472448206] [2023-12-21 13:00:46,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472448206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:00:46,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:00:46,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:00:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154295747] [2023-12-21 13:00:46,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:00:46,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:00:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:00:46,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:00:46,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:00:46,719 INFO L87 Difference]: Start difference. First operand 4125 states and 5489 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:00:52,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:00:56,760 WARN L539 Checker$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 13:01:00,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:04,900 WARN L539 Checker$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 13:01:08,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:22,314 WARN L539 Checker$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 13:01:26,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:30,367 WARN L539 Checker$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 13:01:34,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:38,413 WARN L539 Checker$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 13:01:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:01:38,719 INFO L93 Difference]: Finished difference Result 10069 states and 14297 transitions. [2023-12-21 13:01:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:01:38,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 222 [2023-12-21 13:01:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:01:38,735 INFO L225 Difference]: With dead ends: 10069 [2023-12-21 13:01:38,735 INFO L226 Difference]: Without dead ends: 5946 [2023-12-21 13:01:38,746 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 13:01:38,746 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 4130 mSDsluCounter, 7823 mSDsCounter, 0 mSdLazyCounter, 6808 mSolverCounterSat, 1338 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4243 SdHoareTripleChecker+Valid, 10042 SdHoareTripleChecker+Invalid, 8156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 6808 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:01:38,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4243 Valid, 10042 Invalid, 8156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1338 Valid, 6808 Invalid, 10 Unknown, 0 Unchecked, 51.1s Time] [2023-12-21 13:01:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5946 states. [2023-12-21 13:01:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5946 to 4123. [2023-12-21 13:01:39,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 3272 states have (on average 1.246638141809291) internal successors, (4079), 3328 states have internal predecessors, (4079), 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 13:01:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 5485 transitions. [2023-12-21 13:01:39,046 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 5485 transitions. Word has length 222 [2023-12-21 13:01:39,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:01:39,046 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 5485 transitions. [2023-12-21 13:01:39,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 5 states have internal predecessors, (184), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:01:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 5485 transitions. [2023-12-21 13:01:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-21 13:01:39,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:01:39,049 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:01:39,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:01:39,049 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:01:39,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:01:39,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2066245826, now seen corresponding path program 1 times [2023-12-21 13:01:39,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:01:39,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316955561] [2023-12-21 13:01:39,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:01:39,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:01:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:01:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:01:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:01:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:01:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:01:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:01:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:01:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:01:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 13:01:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 13:01:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:01:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:01:39,725 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 13:01:39,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:01:39,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316955561] [2023-12-21 13:01:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316955561] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:01:39,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:01:39,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 13:01:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695760335] [2023-12-21 13:01:39,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:01:39,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:01:39,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:01:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:01:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:01:39,727 INFO L87 Difference]: Start difference. First operand 4123 states and 5485 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 5 states have internal predecessors, (185), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:01:44,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:48,889 WARN L539 Checker$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 13:01:52,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:01:56,935 WARN L539 Checker$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 13:02:00,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:13,092 WARN L539 Checker$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 13:02:17,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:21,159 WARN L539 Checker$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 13:02:25,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:29,215 WARN L539 Checker$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 13:02:29,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:02:29,417 INFO L93 Difference]: Finished difference Result 10065 states and 14284 transitions. [2023-12-21 13:02:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:02:29,417 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 223 [2023-12-21 13:02:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:02:29,431 INFO L225 Difference]: With dead ends: 10065 [2023-12-21 13:02:29,431 INFO L226 Difference]: Without dead ends: 5944 [2023-12-21 13:02:29,441 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 13:02:29,442 INFO L413 NwaCegarLoop]: 2143 mSDtfsCounter, 5325 mSDsluCounter, 6673 mSDsCounter, 0 mSdLazyCounter, 5418 mSolverCounterSat, 2012 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5453 SdHoareTripleChecker+Valid, 8816 SdHoareTripleChecker+Invalid, 7440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2012 IncrementalHoareTripleChecker+Valid, 5418 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:02:29,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5453 Valid, 8816 Invalid, 7440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2012 Valid, 5418 Invalid, 10 Unknown, 0 Unchecked, 48.9s Time] [2023-12-21 13:02:29,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2023-12-21 13:02:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 4121. [2023-12-21 13:02:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 3271 states have (on average 1.2464078263527973) internal successors, (4077), 3327 states have internal predecessors, (4077), 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 13:02:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5481 transitions. [2023-12-21 13:02:29,719 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5481 transitions. Word has length 223 [2023-12-21 13:02:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:02:29,720 INFO L495 AbstractCegarLoop]: Abstraction has 4121 states and 5481 transitions. [2023-12-21 13:02:29,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 13:02:29,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5481 transitions. [2023-12-21 13:02:29,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-21 13:02:29,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:02:29,722 INFO L195 NwaCegarLoop]: trace histogram [6, 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 13:02:29,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:02:29,723 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 13:02:29,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:02:29,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1951095060, now seen corresponding path program 1 times [2023-12-21 13:02:29,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:02:29,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361312574] [2023-12-21 13:02:29,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:02:29,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:02:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 13:02:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 13:02:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 13:02:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 13:02:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 13:02:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-21 13:02:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 13:02:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 13:02:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 13:02:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 13:02:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-12-21 13:02:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:02:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-21 13:02:30,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:02:30,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361312574] [2023-12-21 13:02:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361312574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:02:30,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:02:30,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:02:30,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718099843] [2023-12-21 13:02:30,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:02:30,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:02:30,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:02:30,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:02:30,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:02:30,438 INFO L87 Difference]: Start difference. First operand 4121 states and 5481 transitions. Second operand has 9 states, 9 states have (on average 20.666666666666668) internal successors, (186), 6 states have internal predecessors, (186), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 13:02:36,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:40,057 WARN L539 Checker$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 13:02:44,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:48,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:52,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-21 13:02:56,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-21 13:03:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:03:08,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:03:08,611 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 7059 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 8702 mSolverCounterSat, 2505 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7201 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 11213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2505 IncrementalHoareTripleChecker+Valid, 8702 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:03:08,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7201 Valid, 7281 Invalid, 11213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2505 Valid, 8702 Invalid, 6 Unknown, 0 Unchecked, 37.2s Time] [2023-12-21 13:03:08,612 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 13:03:08,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:03:08,613 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (4121states) and FLOYD_HOARE automaton (currently 13 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (7811 states constructed, input type IntersectNwa). [2023-12-21 13:03:08,615 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:03:08,617 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 13:03:08,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:03:08 BoogieIcfgContainer [2023-12-21 13:03:08,618 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 13:03:08,618 INFO L158 Benchmark]: Toolchain (without parser) took 849564.65ms. Allocated memory was 336.6MB in the beginning and 1.0GB in the end (delta: 713.0MB). Free memory was 290.5MB in the beginning and 457.1MB in the end (delta: -166.6MB). Peak memory consumption was 717.8MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,618 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 199.2MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 13:03:08,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.65ms. Allocated memory is still 336.6MB. Free memory was 290.5MB in the beginning and 249.9MB in the end (delta: 40.7MB). Peak memory consumption was 72.6MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 209.12ms. Allocated memory is still 336.6MB. Free memory was 249.9MB in the beginning and 200.6MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,619 INFO L158 Benchmark]: Boogie Preprocessor took 392.01ms. Allocated memory is still 336.6MB. Free memory was 200.6MB in the beginning and 245.0MB in the end (delta: -44.4MB). Peak memory consumption was 65.7MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,619 INFO L158 Benchmark]: RCFGBuilder took 7725.59ms. Allocated memory was 336.6MB in the beginning and 867.2MB in the end (delta: 530.6MB). Free memory was 245.0MB in the beginning and 646.7MB in the end (delta: -401.7MB). Peak memory consumption was 164.5MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,619 INFO L158 Benchmark]: TraceAbstraction took 840443.33ms. Allocated memory was 867.2MB in the beginning and 1.0GB in the end (delta: 182.5MB). Free memory was 646.2MB in the beginning and 457.1MB in the end (delta: 189.0MB). Peak memory consumption was 541.9MB. Max. memory is 8.0GB. [2023-12-21 13:03:08,619 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-21 13:03:08,624 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 Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 199.2MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 790.65ms. Allocated memory is still 336.6MB. Free memory was 290.5MB in the beginning and 249.9MB in the end (delta: 40.7MB). Peak memory consumption was 72.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 209.12ms. Allocated memory is still 336.6MB. Free memory was 249.9MB in the beginning and 200.6MB in the end (delta: 49.3MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 392.01ms. Allocated memory is still 336.6MB. Free memory was 200.6MB in the beginning and 245.0MB in the end (delta: -44.4MB). Peak memory consumption was 65.7MB. Max. memory is 8.0GB. * RCFGBuilder took 7725.59ms. Allocated memory was 336.6MB in the beginning and 867.2MB in the end (delta: 530.6MB). Free memory was 245.0MB in the beginning and 646.7MB in the end (delta: -401.7MB). Peak memory consumption was 164.5MB. Max. memory is 8.0GB. * TraceAbstraction took 840443.33ms. Allocated memory was 867.2MB in the beginning and 1.0GB in the end (delta: 182.5MB). Free memory was 646.2MB in the beginning and 457.1MB in the end (delta: 189.0MB). Peak memory consumption was 541.9MB. 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.ok4.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 NwaCegarLoop was constructing difference of abstraction (4121states) and FLOYD_HOARE automaton (currently 13 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (7811 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 45 procedures, 2407 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 840.4s, OverallIterations: 19, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 814.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 157 mSolverCounterUnknown, 110452 SdHoareTripleChecker+Valid, 799.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108398 mSDsluCounter, 170736 SdHoareTripleChecker+Invalid, 779.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125410 mSDsCounter, 38769 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114223 IncrementalHoareTripleChecker+Invalid, 153149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38769 mSolverCounterUnsat, 45326 mSDtfsCounter, 114223 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1305 GetRequests, 1048 SyntacticMatches, 3 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4700occurred in iteration=7, InterpolantAutomatonStates: 211, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 25189 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 4517 NumberOfCodeBlocks, 4517 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4495 ConstructedInterpolants, 0 QuantifiedInterpolants, 9605 SizeOfPredicates, 3 NumberOfNonLiveVariables, 8421 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 19 PerfectInterpolantSequences, 258/272 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