./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:38:39,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:38:40,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:38:40,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:38:40,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:38:40,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:38:40,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:38:40,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:38:40,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:38:40,037 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:38:40,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:38:40,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:38:40,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:38:40,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:38:40,039 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:38:40,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:38:40,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:38:40,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:38:40,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:38:40,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:38:40,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:38:40,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:38:40,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:38:40,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:38:40,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:38:40,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:38:40,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:38:40,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:38:40,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:38:40,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:38:40,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:38:40,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:38:40,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:40,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:38:40,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:38:40,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:38:40,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:38:40,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:38:40,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:38:40,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:38:40,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:38:40,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:38:40,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d92478d67c3996e3815aaa6d0075347cfc456da7f20d1b1bb733d11593b6cf [2024-10-12 20:38:40,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:38:40,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:38:40,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:38:40,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:38:40,322 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:38:40,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i [2024-10-12 20:38:41,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:38:42,048 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:38:42,049 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i [2024-10-12 20:38:42,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d01831d3/1beb8b0005e84df4bcaa5bd1947f4602/FLAGb2bd77a72 [2024-10-12 20:38:42,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d01831d3/1beb8b0005e84df4bcaa5bd1947f4602 [2024-10-12 20:38:42,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:38:42,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:38:42,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:42,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:38:42,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:38:42,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:42" (1/1) ... [2024-10-12 20:38:42,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3138b395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:42, skipping insertion in model container [2024-10-12 20:38:42,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:42" (1/1) ... [2024-10-12 20:38:42,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:38:42,873 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2024-10-12 20:38:43,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:43,086 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:38:43,138 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_queue-1.i[34744,34757] [2024-10-12 20:38:43,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:43,336 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:38:43,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43 WrapperNode [2024-10-12 20:38:43,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:43,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:43,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:38:43,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:38:43,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,463 INFO L138 Inliner]: procedures = 251, calls = 534, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1168 [2024-10-12 20:38:43,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:43,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:38:43,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:38:43,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:38:43,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,563 INFO L175 MemorySlicer]: Split 305 memory accesses to 19 slices as follows [2, 8, 8, 20, 12, 3, 3, 41, 43, 0, 8, 7, 8, 68, 50, 7, 3, 8, 6]. 22 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 3, 3, 6, 6, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 2, 2]. The 94 writes are split as follows [0, 2, 2, 8, 3, 1, 1, 1, 22, 0, 4, 1, 4, 34, 4, 1, 1, 3, 2]. [2024-10-12 20:38:43,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,620 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:38:43,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:38:43,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:38:43,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:38:43,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (1/1) ... [2024-10-12 20:38:43,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:43,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:43,696 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) [2024-10-12 20:38:43,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:38:43,751 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 20:38:43,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 20:38:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 20:38:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure empty [2024-10-12 20:38:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure empty [2024-10-12 20:38:43,753 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2024-10-12 20:38:43,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2024-10-12 20:38:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-12 20:38:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-12 20:38:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-12 20:38:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-12 20:38:43,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-12 20:38:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-12 20:38:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-12 20:38:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-12 20:38:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-12 20:38:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-12 20:38:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-12 20:38:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-10-12 20:38:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-10-12 20:38:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 20:38:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-12 20:38:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-12 20:38:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-12 20:38:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-12 20:38:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-12 20:38:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-12 20:38:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-12 20:38:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-12 20:38:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-12 20:38:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2024-10-12 20:38:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 20:38:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 20:38:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-10-12 20:38:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-12 20:38:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 20:38:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-12 20:38:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-12 20:38:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-12 20:38:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-12 20:38:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-12 20:38:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-12 20:38:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-12 20:38:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-12 20:38:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-12 20:38:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-10-12 20:38:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:38:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-12 20:38:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-12 20:38:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-12 20:38:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-12 20:38:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-12 20:38:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-10-12 20:38:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-12 20:38:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-12 20:38:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-12 20:38:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-12 20:38:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-12 20:38:43,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 20:38:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-12 20:38:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-12 20:38:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-12 20:38:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:38:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:38:44,112 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:38:44,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:38:44,211 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,212 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,212 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2024-10-12 20:38:44,212 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);#res := 0; [2024-10-12 20:38:44,743 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093: SUMMARY for call __CS_cs(); srcloc: null [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1093-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129: SUMMARY for call __CS_cs(); srcloc: null [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint L1129-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,744 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##83: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##82: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);dequeue_#res#1 := 0; [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-12 20:38:44,745 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,749 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2024-10-12 20:38:44,749 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##149: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);enqueue_#res#1 := 0; [2024-10-12 20:38:44,749 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##150: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,749 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##166: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t1_#res#1.base, t1_#res#1.offset := 0, 0; [2024-10-12 20:38:44,750 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:44,750 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);t2_#res#1.base, t2_#res#1.offset := 0, 0; [2024-10-12 20:38:44,750 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2024-10-12 20:38:49,519 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-10-12 20:38:49,519 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:38:49,572 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:38:49,573 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 20:38:49,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:49 BoogieIcfgContainer [2024-10-12 20:38:49,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:38:49,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:38:49,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:38:49,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:38:49,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:38:42" (1/3) ... [2024-10-12 20:38:49,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c44d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:49, skipping insertion in model container [2024-10-12 20:38:49,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:43" (2/3) ... [2024-10-12 20:38:49,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34c44d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:49, skipping insertion in model container [2024-10-12 20:38:49,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:49" (3/3) ... [2024-10-12 20:38:49,584 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_queue-1.i [2024-10-12 20:38:49,600 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:38:49,600 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:38:49,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:38:49,685 INFO L333 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, 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;@5c51ce1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:38:49,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:38:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-10-12 20:38:49,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-10-12 20:38:49,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:49,723 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:49,724 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:49,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:49,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1278456058, now seen corresponding path program 1 times [2024-10-12 20:38:49,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:49,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933914088] [2024-10-12 20:38:49,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:49,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:50,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 20:38:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:38:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:38:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:38:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:38:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:38:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:38:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:38:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:38:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:38:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:38:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:38:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:38:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:38:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:38:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-12 20:38:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-12 20:38:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-12 20:38:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-12 20:38:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-12 20:38:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-12 20:38:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-12 20:38:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-12 20:38:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-12 20:38:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-12 20:38:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-12 20:38:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-12 20:38:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-12 20:38:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-10-12 20:38:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-10-12 20:38:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-10-12 20:38:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-10-12 20:38:51,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933914088] [2024-10-12 20:38:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933914088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:51,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:51,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:51,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482520732] [2024-10-12 20:38:51,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:51,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:51,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:51,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:51,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:51,417 INFO L87 Difference]: Start difference. First operand has 332 states, 189 states have (on average 1.507936507936508) internal successors, (285), 191 states have internal predecessors, (285), 132 states have call successors, (132), 9 states have call predecessors, (132), 9 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:38:51,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:51,709 INFO L93 Difference]: Finished difference Result 668 states and 1233 transitions. [2024-10-12 20:38:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:51,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 325 [2024-10-12 20:38:51,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:51,730 INFO L225 Difference]: With dead ends: 668 [2024-10-12 20:38:51,730 INFO L226 Difference]: Without dead ends: 335 [2024-10-12 20:38:51,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:51,745 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 9 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:51,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1043 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:38:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-12 20:38:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 329. [2024-10-12 20:38:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 188 states have (on average 1.4574468085106382) internal successors, (274), 190 states have internal predecessors, (274), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-10-12 20:38:51,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 535 transitions. [2024-10-12 20:38:51,839 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 535 transitions. Word has length 325 [2024-10-12 20:38:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:51,839 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 535 transitions. [2024-10-12 20:38:51,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:38:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 535 transitions. [2024-10-12 20:38:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-10-12 20:38:51,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:51,849 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:38:51,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:51,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1901390565, now seen corresponding path program 1 times [2024-10-12 20:38:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465567162] [2024-10-12 20:38:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:51,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 20:38:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 20:38:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 20:38:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 20:38:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-12 20:38:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 20:38:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 20:38:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 20:38:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 20:38:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 20:38:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 20:38:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 20:38:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 20:38:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 20:38:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 20:38:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-12 20:38:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-12 20:38:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-12 20:38:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-12 20:38:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-12 20:38:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-12 20:38:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-12 20:38:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-12 20:38:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-12 20:38:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-12 20:38:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-12 20:38:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-12 20:38:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-12 20:38:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-12 20:38:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-12 20:38:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-12 20:38:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-12 20:38:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-12 20:38:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-12 20:38:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-12 20:38:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-10-12 20:38:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-12 20:38:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2024-10-12 20:38:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2024-10-12 20:38:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-12 20:38:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-12 20:38:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-12 20:38:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2024-10-12 20:38:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-10-12 20:38:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-10-12 20:38:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2024-10-12 20:38:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2024-10-12 20:38:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-10-12 20:38:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-10-12 20:38:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2024-10-12 20:38:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2024-10-12 20:38:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2024-10-12 20:38:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:52,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-10-12 20:38:52,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:52,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465567162] [2024-10-12 20:38:52,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465567162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:52,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:52,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:52,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508917514] [2024-10-12 20:38:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:52,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:52,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:52,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:52,784 INFO L87 Difference]: Start difference. First operand 329 states and 535 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:38:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:52,920 INFO L93 Difference]: Finished difference Result 659 states and 1074 transitions. [2024-10-12 20:38:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 332 [2024-10-12 20:38:52,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:52,925 INFO L225 Difference]: With dead ends: 659 [2024-10-12 20:38:52,926 INFO L226 Difference]: Without dead ends: 332 [2024-10-12 20:38:52,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:52,929 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:52,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1040 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:52,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-10-12 20:38:52,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-10-12 20:38:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 191 states have (on average 1.450261780104712) internal successors, (277), 193 states have internal predecessors, (277), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-10-12 20:38:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 538 transitions. [2024-10-12 20:38:52,958 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 538 transitions. Word has length 332 [2024-10-12 20:38:52,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:52,959 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 538 transitions. [2024-10-12 20:38:52,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:38:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 538 transitions. [2024-10-12 20:38:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-10-12 20:38:52,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:52,965 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:52,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:38:52,966 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:52,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1982787695, now seen corresponding path program 1 times [2024-10-12 20:38:52,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:52,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017548632] [2024-10-12 20:38:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-12 20:38:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-12 20:38:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:38:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:38:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 20:38:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 20:38:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 20:38:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 20:38:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 20:38:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 20:38:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:38:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:38:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:38:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:38:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:38:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:38:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:38:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:38:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:38:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:38:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:38:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:38:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:38:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:38:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:38:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:38:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:38:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:38:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:38:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:38:53,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:38:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:38:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-12 20:38:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-12 20:38:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-12 20:38:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-12 20:38:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-12 20:38:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-12 20:38:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-12 20:38:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-10-12 20:38:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-10-12 20:38:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-12 20:38:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-10-12 20:38:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-10-12 20:38:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-10-12 20:38:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-10-12 20:38:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-10-12 20:38:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-10-12 20:38:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-10-12 20:38:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-10-12 20:38:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2024-10-12 20:38:53,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:53,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017548632] [2024-10-12 20:38:53,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017548632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:53,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827520100] [2024-10-12 20:38:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:53,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:53,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:53,917 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) [2024-10-12 20:38:53,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 20:38:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:54,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 1746 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 20:38:54,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2024-10-12 20:38:54,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:38:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5308 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5306 trivial. 0 not checked. [2024-10-12 20:38:55,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827520100] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:38:55,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:38:55,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-12 20:38:55,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057040405] [2024-10-12 20:38:55,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:38:55,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:38:55,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:55,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:38:55,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:38:55,381 INFO L87 Difference]: Start difference. First operand 332 states and 538 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2024-10-12 20:38:55,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:55,608 INFO L93 Difference]: Finished difference Result 669 states and 1088 transitions. [2024-10-12 20:38:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:38:55,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) Word has length 335 [2024-10-12 20:38:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:55,617 INFO L225 Difference]: With dead ends: 669 [2024-10-12 20:38:55,617 INFO L226 Difference]: Without dead ends: 339 [2024-10-12 20:38:55,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:38:55,622 INFO L432 NwaCegarLoop]: 522 mSDtfsCounter, 0 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:55,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2073 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:38:55,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-12 20:38:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2024-10-12 20:38:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 198 states have (on average 1.4343434343434343) internal successors, (284), 200 states have internal predecessors, (284), 131 states have call successors, (131), 9 states have call predecessors, (131), 9 states have return successors, (130), 130 states have call predecessors, (130), 130 states have call successors, (130) [2024-10-12 20:38:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 545 transitions. [2024-10-12 20:38:55,668 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 545 transitions. Word has length 335 [2024-10-12 20:38:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:55,668 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 545 transitions. [2024-10-12 20:38:55,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 1 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (104), 1 states have call predecessors, (104), 1 states have call successors, (104) [2024-10-12 20:38:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 545 transitions. [2024-10-12 20:38:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-10-12 20:38:55,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:55,675 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:55,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 20:38:55,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:55,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:55,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2093305563, now seen corresponding path program 2 times [2024-10-12 20:38:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362655724] [2024-10-12 20:38:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:55,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 20:38:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 20:38:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-12 20:38:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 20:38:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 20:38:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 20:38:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 20:38:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 20:38:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 20:38:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 20:38:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 20:38:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 20:38:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 20:38:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 20:38:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 20:38:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 20:38:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 20:38:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-12 20:38:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-12 20:38:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-12 20:38:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-12 20:38:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-12 20:38:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 20:38:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-12 20:38:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-12 20:38:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-12 20:38:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-12 20:38:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-12 20:38:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-12 20:38:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-12 20:38:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-12 20:38:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-12 20:38:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-12 20:38:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-12 20:38:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-12 20:38:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-10-12 20:38:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-12 20:38:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-12 20:38:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-10-12 20:38:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-12 20:38:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-10-12 20:38:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-10-12 20:38:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-10-12 20:38:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-10-12 20:38:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-10-12 20:38:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 20:38:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-10-12 20:38:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 20:38:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-10-12 20:38:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-10-12 20:38:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-12 20:38:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-10-12 20:38:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2024-10-12 20:38:56,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:56,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362655724] [2024-10-12 20:38:56,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362655724] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:56,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124055502] [2024-10-12 20:38:56,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 20:38:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:56,761 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) [2024-10-12 20:38:56,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 20:38:57,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 20:38:57,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 20:38:57,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-12 20:38:57,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:57,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 20:38:57,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-10-12 20:38:57,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 7 [2024-10-12 20:39:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2024-10-12 20:39:00,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 20:39:00,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124055502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:39:00,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 20:39:00,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2024-10-12 20:39:00,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706983850] [2024-10-12 20:39:00,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:39:00,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:39:00,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:39:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:39:00,219 INFO L87 Difference]: Start difference. First operand 339 states and 545 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:39:04,359 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 [] [2024-10-12 20:39:08,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:12,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:14,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:14,956 INFO L93 Difference]: Finished difference Result 981 states and 1598 transitions. [2024-10-12 20:39:14,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:39:14,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 342 [2024-10-12 20:39:14,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:14,968 INFO L225 Difference]: With dead ends: 981 [2024-10-12 20:39:14,968 INFO L226 Difference]: Without dead ends: 979 [2024-10-12 20:39:14,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:39:14,970 INFO L432 NwaCegarLoop]: 536 mSDtfsCounter, 1022 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 523 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:14,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 2827 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 429 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2024-10-12 20:39:14,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2024-10-12 20:39:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 959. [2024-10-12 20:39:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 547 states have (on average 1.4497257769652652) internal successors, (793), 552 states have internal predecessors, (793), 384 states have call successors, (384), 27 states have call predecessors, (384), 27 states have return successors, (395), 382 states have call predecessors, (395), 382 states have call successors, (395) [2024-10-12 20:39:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1572 transitions. [2024-10-12 20:39:15,059 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1572 transitions. Word has length 342 [2024-10-12 20:39:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:15,060 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1572 transitions. [2024-10-12 20:39:15,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-10-12 20:39:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1572 transitions. [2024-10-12 20:39:15,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-12 20:39:15,070 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:15,070 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:15,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 20:39:15,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-10-12 20:39:15,271 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:15,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash 114060924, now seen corresponding path program 1 times [2024-10-12 20:39:15,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:15,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833003997] [2024-10-12 20:39:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:15,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 20:39:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 20:39:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-12 20:39:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-12 20:39:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 20:39:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 20:39:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 20:39:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 20:39:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 20:39:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 20:39:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 20:39:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 20:39:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 20:39:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 20:39:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-12 20:39:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-12 20:39:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-12 20:39:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-12 20:39:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-12 20:39:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-12 20:39:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-12 20:39:16,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-12 20:39:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-12 20:39:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-12 20:39:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-12 20:39:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-12 20:39:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-12 20:39:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-12 20:39:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-12 20:39:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-10-12 20:39:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-12 20:39:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-12 20:39:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-12 20:39:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-12 20:39:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-12 20:39:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-10-12 20:39:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-12 20:39:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-10-12 20:39:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-10-12 20:39:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-10-12 20:39:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2024-10-12 20:39:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-10-12 20:39:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-10-12 20:39:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-10-12 20:39:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2024-10-12 20:39:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-12 20:39:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2024-10-12 20:39:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-12 20:39:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-10-12 20:39:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-10-12 20:39:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2024-10-12 20:39:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-10-12 20:39:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-10-12 20:39:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5327 trivial. 0 not checked. [2024-10-12 20:39:16,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:16,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833003997] [2024-10-12 20:39:16,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833003997] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:16,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549595954] [2024-10-12 20:39:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:16,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:16,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:16,239 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) [2024-10-12 20:39:16,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 20:39:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:17,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 20:39:17,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:17,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2024-10-12 20:39:17,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:39:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 5317 trivial. 0 not checked. [2024-10-12 20:39:18,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549595954] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:39:18,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:39:18,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-10-12 20:39:18,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869899351] [2024-10-12 20:39:18,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:39:18,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 20:39:18,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:18,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 20:39:18,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:39:18,136 INFO L87 Difference]: Start difference. First operand 959 states and 1572 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-10-12 20:39:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:19,172 INFO L93 Difference]: Finished difference Result 1959 states and 3215 transitions. [2024-10-12 20:39:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-12 20:39:19,173 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) Word has length 347 [2024-10-12 20:39:19,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:19,182 INFO L225 Difference]: With dead ends: 1959 [2024-10-12 20:39:19,182 INFO L226 Difference]: Without dead ends: 1002 [2024-10-12 20:39:19,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 821 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2024-10-12 20:39:19,189 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 32 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:19,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 3103 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:39:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-10-12 20:39:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2024-10-12 20:39:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 590 states have (on average 1.4220338983050846) internal successors, (839), 595 states have internal predecessors, (839), 384 states have call successors, (384), 27 states have call predecessors, (384), 27 states have return successors, (395), 382 states have call predecessors, (395), 382 states have call successors, (395) [2024-10-12 20:39:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1618 transitions. [2024-10-12 20:39:19,278 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1618 transitions. Word has length 347 [2024-10-12 20:39:19,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:19,278 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1618 transitions. [2024-10-12 20:39:19,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 states have internal predecessors, (106), 1 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (106), 1 states have call predecessors, (106), 1 states have call successors, (106) [2024-10-12 20:39:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1618 transitions. [2024-10-12 20:39:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-10-12 20:39:19,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:19,287 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:19,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 20:39:19,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:19,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:19,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:19,489 INFO L85 PathProgramCache]: Analyzing trace with hash 538449001, now seen corresponding path program 2 times [2024-10-12 20:39:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:19,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43592862] [2024-10-12 20:39:19,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:19,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:39:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:39:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:39:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:39:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:39:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:39:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:39:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:39:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:39:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:39:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:39:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:39:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:39:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:39:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:39:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:39:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:39:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:39:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:39:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:39:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:39:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:39:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:39:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:39:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:39:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:39:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-12 20:39:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-12 20:39:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-12 20:39:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-12 20:39:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-12 20:39:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-12 20:39:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-12 20:39:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-12 20:39:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-12 20:39:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-12 20:39:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-12 20:39:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-12 20:39:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-12 20:39:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-10-12 20:39:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-10-12 20:39:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-10-12 20:39:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-12 20:39:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-10-12 20:39:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-10-12 20:39:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-10-12 20:39:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-10-12 20:39:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-10-12 20:39:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-12 20:39:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-10-12 20:39:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-12 20:39:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-12 20:39:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-10-12 20:39:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5622 trivial. 0 not checked. [2024-10-12 20:39:21,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:21,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43592862] [2024-10-12 20:39:21,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43592862] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:21,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917115008] [2024-10-12 20:39:21,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 20:39:21,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:21,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:21,233 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 20:39:21,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 20:39:22,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 20:39:22,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 20:39:22,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 20:39:22,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:22,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 20:39:22,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2024-10-12 20:39:22,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 7 [2024-10-12 20:39:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5802 trivial. 0 not checked. [2024-10-12 20:39:22,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 20:39:22,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917115008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:39:22,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 20:39:22,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2024-10-12 20:39:22,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888938630] [2024-10-12 20:39:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:39:22,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:39:22,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:22,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:39:22,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:39:22,841 INFO L87 Difference]: Start difference. First operand 1002 states and 1618 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2024-10-12 20:39:26,910 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 [] [2024-10-12 20:39:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:27,123 INFO L93 Difference]: Finished difference Result 1631 states and 2649 transitions. [2024-10-12 20:39:27,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:39:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 390 [2024-10-12 20:39:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:27,133 INFO L225 Difference]: With dead ends: 1631 [2024-10-12 20:39:27,134 INFO L226 Difference]: Without dead ends: 1002 [2024-10-12 20:39:27,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-10-12 20:39:27,139 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 521 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:27,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1028 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-10-12 20:39:27,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-10-12 20:39:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2024-10-12 20:39:27,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 590 states have (on average 1.4203389830508475) internal successors, (838), 595 states have internal predecessors, (838), 384 states have call successors, (384), 27 states have call predecessors, (384), 27 states have return successors, (395), 382 states have call predecessors, (395), 382 states have call successors, (395) [2024-10-12 20:39:27,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1617 transitions. [2024-10-12 20:39:27,218 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1617 transitions. Word has length 390 [2024-10-12 20:39:27,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:27,219 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1617 transitions. [2024-10-12 20:39:27,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2024-10-12 20:39:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1617 transitions. [2024-10-12 20:39:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-10-12 20:39:27,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:27,228 INFO L215 NwaCegarLoop]: trace histogram [53, 53, 53, 20, 20, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:27,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 20:39:27,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:27,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:27,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1690182564, now seen corresponding path program 1 times [2024-10-12 20:39:27,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:27,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909378420] [2024-10-12 20:39:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:27,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 20:39:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 20:39:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:39:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:39:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:39:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:39:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:39:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:39:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:39:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:39:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:39:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:39:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:39:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:39:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:39:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:39:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:39:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:39:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:39:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:39:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:39:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:39:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:39:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:39:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:39:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-12 20:39:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-12 20:39:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-10-12 20:39:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-10-12 20:39:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2024-10-12 20:39:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-10-12 20:39:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-12 20:39:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-12 20:39:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-10-12 20:39:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-12 20:39:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2024-10-12 20:39:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-12 20:39:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2024-10-12 20:39:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2024-10-12 20:39:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-10-12 20:39:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2024-10-12 20:39:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2024-10-12 20:39:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-10-12 20:39:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2024-10-12 20:39:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-10-12 20:39:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-10-12 20:39:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2024-10-12 20:39:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-12 20:39:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-10-12 20:39:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-12 20:39:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2024-10-12 20:39:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-10-12 20:39:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2024-10-12 20:39:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2024-10-12 20:39:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2024-10-12 20:39:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2024-10-12 20:39:29,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909378420] [2024-10-12 20:39:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909378420] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465243815] [2024-10-12 20:39:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:29,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:29,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:29,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 20:39:29,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 20:39:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:30,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 2820 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 20:39:30,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:30,789 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 123 proven. 55 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2024-10-12 20:39:30,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:39:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6010 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 5830 trivial. 0 not checked. [2024-10-12 20:39:31,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465243815] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:39:31,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:39:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 25 [2024-10-12 20:39:31,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514563601] [2024-10-12 20:39:31,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:39:31,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-12 20:39:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-12 20:39:31,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:39:31,946 INFO L87 Difference]: Start difference. First operand 1002 states and 1617 transitions. Second operand has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2024-10-12 20:39:36,330 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 [] [2024-10-12 20:39:40,342 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 [] [2024-10-12 20:39:43,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:43,497 INFO L93 Difference]: Finished difference Result 2045 states and 3321 transitions. [2024-10-12 20:39:43,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-12 20:39:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 408 [2024-10-12 20:39:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:43,507 INFO L225 Difference]: With dead ends: 2045 [2024-10-12 20:39:43,507 INFO L226 Difference]: Without dead ends: 1056 [2024-10-12 20:39:43,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 939 GetRequests, 914 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:39:43,514 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 33 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 210 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:43,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 1595 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 823 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2024-10-12 20:39:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-10-12 20:39:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1046. [2024-10-12 20:39:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 632 states have (on average 1.3924050632911393) internal successors, (880), 639 states have internal predecessors, (880), 384 states have call successors, (384), 27 states have call predecessors, (384), 29 states have return successors, (399), 382 states have call predecessors, (399), 382 states have call successors, (399) [2024-10-12 20:39:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1663 transitions. [2024-10-12 20:39:43,599 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1663 transitions. Word has length 408 [2024-10-12 20:39:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:43,600 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1663 transitions. [2024-10-12 20:39:43,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.12) internal successors, (128), 23 states have internal predecessors, (128), 2 states have call successors, (115), 4 states have call predecessors, (115), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2024-10-12 20:39:43,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1663 transitions. [2024-10-12 20:39:43,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-10-12 20:39:43,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:43,608 INFO L215 NwaCegarLoop]: trace histogram [53, 53, 53, 40, 40, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:43,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 20:39:43,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:43,810 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:43,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1455171748, now seen corresponding path program 2 times [2024-10-12 20:39:43,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:43,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696318830] [2024-10-12 20:39:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 20:39:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 20:39:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:39:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:39:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:39:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:39:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:39:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:39:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:39:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:39:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:39:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:39:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:39:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:39:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:39:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:39:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:39:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:39:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-12 20:39:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-12 20:39:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-12 20:39:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-12 20:39:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-12 20:39:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-12 20:39:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-10-12 20:39:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-10-12 20:39:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2024-10-12 20:39:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2024-10-12 20:39:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-10-12 20:39:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-10-12 20:39:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2024-10-12 20:39:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-10-12 20:39:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2024-10-12 20:39:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-10-12 20:39:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-10-12 20:39:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-10-12 20:39:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2024-10-12 20:39:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-10-12 20:39:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-10-12 20:39:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-10-12 20:39:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-12 20:39:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2024-10-12 20:39:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-12 20:39:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-12 20:39:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2024-10-12 20:39:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2024-10-12 20:39:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-10-12 20:39:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-10-12 20:39:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2024-10-12 20:39:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2024-10-12 20:39:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2024-10-12 20:39:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2024-10-12 20:39:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2024-10-12 20:39:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2024-10-12 20:39:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2024-10-12 20:39:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7270 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7268 trivial. 0 not checked. [2024-10-12 20:39:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696318830] [2024-10-12 20:39:46,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696318830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:39:46,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:39:46,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:39:46,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335046231] [2024-10-12 20:39:46,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:39:46,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:39:46,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:39:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:39:46,729 INFO L87 Difference]: Start difference. First operand 1046 states and 1663 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-10-12 20:39:50,918 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 [] [2024-10-12 20:39:54,924 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 []