./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.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 a52320cf15ef16183046f0f792382098821a237814ee842f46de00a84d4e09b2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:48:03,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:48:03,840 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:48:03,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:48:03,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:48:03,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:48:03,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:48:03,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:48:03,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:48:03,882 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:48:03,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:48:03,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:48:03,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:48:03,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:48:03,885 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:48:03,885 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:48:03,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:48:03,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:48:03,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:48:03,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:48:03,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:48:03,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:48:03,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:48:03,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:48:03,891 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:48:03,891 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:48:03,891 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:48:03,892 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:48:03,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:48:03,892 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:48:03,893 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:48:03,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:48:03,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:48:03,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:48:03,893 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:48:03,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:48:03,894 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:48:03,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:48:03,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:48:03,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:48:03,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:48:03,896 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:48:03,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a52320cf15ef16183046f0f792382098821a237814ee842f46de00a84d4e09b2 [2024-11-22 12:48:04,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:48:04,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:48:04,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:48:04,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:48:04,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:48:04,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i [2024-11-22 12:48:05,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:48:05,826 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:48:05,827 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i [2024-11-22 12:48:05,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c577dce7/6a2bab2bf9544631ab3ccacc33969ccf/FLAGc2706d498 [2024-11-22 12:48:05,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c577dce7/6a2bab2bf9544631ab3ccacc33969ccf [2024-11-22 12:48:05,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:48:05,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:48:05,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:48:05,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:48:05,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:48:05,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:05" (1/1) ... [2024-11-22 12:48:05,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c7eb0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:05, skipping insertion in model container [2024-11-22 12:48:05,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:48:05" (1/1) ... [2024-11-22 12:48:05,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:48:06,092 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i[917,930] [2024-11-22 12:48:06,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:48:06,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:48:06,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-67.i[917,930] [2024-11-22 12:48:06,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:48:06,319 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:48:06,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06 WrapperNode [2024-11-22 12:48:06,320 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:48:06,321 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:48:06,322 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:48:06,322 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:48:06,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,395 INFO L138 Inliner]: procedures = 29, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-11-22 12:48:06,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:48:06,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:48:06,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:48:06,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:48:06,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,453 INFO L175 MemorySlicer]: Split 106 memory accesses to 7 slices as follows [2, 6, 3, 13, 17, 30, 35]. 33 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 2, 2, 3, 3]. The 16 writes are split as follows [0, 1, 1, 2, 5, 3, 4]. [2024-11-22 12:48:06,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:48:06,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:48:06,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:48:06,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:48:06,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (1/1) ... [2024-11-22 12:48:06,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:48:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:48:06,533 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) [2024-11-22 12:48:06,541 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 [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-22 12:48:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 12:48:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:48:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:48:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:48:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:48:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 12:48:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 12:48:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-22 12:48:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-22 12:48:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-22 12:48:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-22 12:48:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-22 12:48:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-22 12:48:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-22 12:48:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:48:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:48:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:48:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:48:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:48:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:48:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:48:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 12:48:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 12:48:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:48:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:48:06,785 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:48:06,787 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:48:07,277 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-22 12:48:07,277 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:48:07,294 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:48:07,294 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:48:07,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:07 BoogieIcfgContainer [2024-11-22 12:48:07,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:48:07,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:48:07,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:48:07,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:48:07,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:48:05" (1/3) ... [2024-11-22 12:48:07,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fccb101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:07, skipping insertion in model container [2024-11-22 12:48:07,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:48:06" (2/3) ... [2024-11-22 12:48:07,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fccb101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:48:07, skipping insertion in model container [2024-11-22 12:48:07,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:48:07" (3/3) ... [2024-11-22 12:48:07,303 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-67.i [2024-11-22 12:48:07,320 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:48:07,321 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:48:07,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:48:07,391 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;@b8f72dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:48:07,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:48:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 79 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:07,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:07,406 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:07,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:07,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1396846781, now seen corresponding path program 1 times [2024-11-22 12:48:07,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:07,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578550599] [2024-11-22 12:48:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:07,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:07,785 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-22 12:48:07,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:07,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578550599] [2024-11-22 12:48:07,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578550599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:48:07,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22973128] [2024-11-22 12:48:07,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:07,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:48:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:48:07,790 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) [2024-11-22 12:48:07,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:48:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:08,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:48:08,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:48:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-22 12:48:08,099 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:48:08,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22973128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:08,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:48:08,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:48:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162222666] [2024-11-22 12:48:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:08,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:48:08,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:08,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:48:08,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:48:08,129 INFO L87 Difference]: Start difference. First operand has 93 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 79 states have internal predecessors, (109), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 12:48:08,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:08,155 INFO L93 Difference]: Finished difference Result 179 states and 272 transitions. [2024-11-22 12:48:08,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:48:08,158 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2024-11-22 12:48:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:08,164 INFO L225 Difference]: With dead ends: 179 [2024-11-22 12:48:08,165 INFO L226 Difference]: Without dead ends: 89 [2024-11-22 12:48:08,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:48:08,170 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:08,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:48:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-22 12:48:08,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-22 12:48:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.36) internal successors, (102), 75 states have internal predecessors, (102), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-11-22 12:48:08,208 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 104 [2024-11-22 12:48:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:08,208 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-11-22 12:48:08,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 12:48:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-11-22 12:48:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:08,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:08,212 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:08,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 12:48:08,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:48:08,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:08,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2119067347, now seen corresponding path program 1 times [2024-11-22 12:48:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:08,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61779194] [2024-11-22 12:48:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:08,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 12:48:08,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61779194] [2024-11-22 12:48:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61779194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:08,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:08,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:48:08,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204126419] [2024-11-22 12:48:08,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:08,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:48:08,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:08,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:48:08,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:08,693 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 12:48:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:08,725 INFO L93 Difference]: Finished difference Result 177 states and 252 transitions. [2024-11-22 12:48:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:48:08,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2024-11-22 12:48:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:08,727 INFO L225 Difference]: With dead ends: 177 [2024-11-22 12:48:08,727 INFO L226 Difference]: Without dead ends: 91 [2024-11-22 12:48:08,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:08,729 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:08,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 361 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:48:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-22 12:48:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-22 12:48:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2024-11-22 12:48:08,748 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 104 [2024-11-22 12:48:08,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:08,749 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2024-11-22 12:48:08,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 12:48:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2024-11-22 12:48:08,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:08,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:08,754 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:08,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:48:08,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:08,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:08,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1532791125, now seen corresponding path program 1 times [2024-11-22 12:48:08,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:08,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41529698] [2024-11-22 12:48:08,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:08,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 12:48:09,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:09,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41529698] [2024-11-22 12:48:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41529698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:09,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:48:09,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740666772] [2024-11-22 12:48:09,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:09,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:48:09,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:09,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:48:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,024 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:09,063 INFO L93 Difference]: Finished difference Result 182 states and 257 transitions. [2024-11-22 12:48:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:48:09,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-22 12:48:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:09,065 INFO L225 Difference]: With dead ends: 182 [2024-11-22 12:48:09,065 INFO L226 Difference]: Without dead ends: 94 [2024-11-22 12:48:09,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,067 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:09,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 358 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:48:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-22 12:48:09,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2024-11-22 12:48:09,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:09,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-22 12:48:09,078 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 104 [2024-11-22 12:48:09,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:09,082 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-22 12:48:09,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,083 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-22 12:48:09,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:09,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:09,084 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:09,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:48:09,086 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:09,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash -852732755, now seen corresponding path program 1 times [2024-11-22 12:48:09,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:09,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75245701] [2024-11-22 12:48:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:09,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 12:48:09,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:09,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75245701] [2024-11-22 12:48:09,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75245701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:09,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:09,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:48:09,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017902621] [2024-11-22 12:48:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:09,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:48:09,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:48:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,268 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:09,308 INFO L93 Difference]: Finished difference Result 186 states and 261 transitions. [2024-11-22 12:48:09,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:48:09,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-22 12:48:09,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:09,310 INFO L225 Difference]: With dead ends: 186 [2024-11-22 12:48:09,310 INFO L226 Difference]: Without dead ends: 96 [2024-11-22 12:48:09,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,312 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:09,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:48:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-22 12:48:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-22 12:48:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-22 12:48:09,325 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 104 [2024-11-22 12:48:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:09,326 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-22 12:48:09,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-22 12:48:09,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:09,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:09,328 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:09,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:48:09,329 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:09,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:09,329 INFO L85 PathProgramCache]: Analyzing trace with hash 922274607, now seen corresponding path program 1 times [2024-11-22 12:48:09,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752644876] [2024-11-22 12:48:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:48:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-22 12:48:09,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:48:09,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752644876] [2024-11-22 12:48:09,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752644876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:48:09,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:48:09,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 12:48:09,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448834539] [2024-11-22 12:48:09,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:48:09,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 12:48:09,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:48:09,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 12:48:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,492 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:48:09,519 INFO L93 Difference]: Finished difference Result 190 states and 265 transitions. [2024-11-22 12:48:09,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 12:48:09,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2024-11-22 12:48:09,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:48:09,524 INFO L225 Difference]: With dead ends: 190 [2024-11-22 12:48:09,524 INFO L226 Difference]: Without dead ends: 98 [2024-11-22 12:48:09,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 12:48:09,526 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:48:09,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 361 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:48:09,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-22 12:48:09,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-22 12:48:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-22 12:48:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2024-11-22 12:48:09,545 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 104 [2024-11-22 12:48:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:48:09,546 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2024-11-22 12:48:09,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-22 12:48:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2024-11-22 12:48:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 12:48:09,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:48:09,547 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:48:09,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 12:48:09,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:48:09,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:48:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash 924121649, now seen corresponding path program 1 times [2024-11-22 12:48:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:48:09,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497400217] [2024-11-22 12:48:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:48:09,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:48:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat