./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-39.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_loopvsstraightlinecode_25-1loop_file-39.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 cad39411d7becf64b0716e48fab4680fd039796e30818af24b0de5905de7c645 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 10:40:05,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 10:40:05,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 10:40:05,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 10:40:05,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 10:40:05,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 10:40:05,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 10:40:05,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 10:40:05,258 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 10:40:05,258 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 10:40:05,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 10:40:05,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 10:40:05,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 10:40:05,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 10:40:05,260 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 10:40:05,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 10:40:05,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 10:40:05,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 10:40:05,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 10:40:05,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 10:40:05,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 10:40:05,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 10:40:05,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 10:40:05,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 10:40:05,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 10:40:05,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 10:40:05,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 10:40:05,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 10:40:05,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 10:40:05,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 10:40:05,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 10:40:05,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 10:40:05,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:40:05,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 10:40:05,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 10:40:05,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 10:40:05,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 10:40:05,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 10:40:05,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 10:40:05,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 10:40:05,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 10:40:05,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 10:40:05,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad39411d7becf64b0716e48fab4680fd039796e30818af24b0de5905de7c645 [2024-11-22 10:40:05,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 10:40:05,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 10:40:05,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 10:40:05,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 10:40:05,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 10:40:05,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-39.i [2024-11-22 10:40:07,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 10:40:07,040 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-22 10:40:07,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 10:40:07,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-39.i [2024-11-22 10:40:07,223 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9fe83c60/310637d874e440ef984965027042d4b4/FLAG583197699 [2024-11-22 10:40:07,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9fe83c60/310637d874e440ef984965027042d4b4 [2024-11-22 10:40:07,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 10:40:07,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 10:40:07,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 10:40:07,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 10:40:07,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 10:40:07,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783ce703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07, skipping insertion in model container [2024-11-22 10:40:07,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 10:40:07,475 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_loopvsstraightlinecode_25-1loop_file-39.i[915,928] [2024-11-22 10:40:07,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:40:07,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 10:40:07,660 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_loopvsstraightlinecode_25-1loop_file-39.i[915,928] [2024-11-22 10:40:07,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 10:40:07,717 INFO L204 MainTranslator]: Completed translation [2024-11-22 10:40:07,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07 WrapperNode [2024-11-22 10:40:07,717 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 10:40:07,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 10:40:07,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 10:40:07,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 10:40:07,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,777 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-22 10:40:07,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 10:40:07,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 10:40:07,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 10:40:07,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 10:40:07,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 10:40:07,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,839 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 10:40:07,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 10:40:07,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 10:40:07,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 10:40:07,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (1/1) ... [2024-11-22 10:40:07,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 10:40:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:40:07,885 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 10:40:07,893 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 10:40:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 10:40:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 10:40:07,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 10:40:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 10:40:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 10:40:07,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 10:40:08,010 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 10:40:08,013 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 10:40:08,245 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-22 10:40:08,246 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 10:40:08,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 10:40:08,262 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 10:40:08,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:40:08 BoogieIcfgContainer [2024-11-22 10:40:08,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 10:40:08,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 10:40:08,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 10:40:08,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 10:40:08,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:40:07" (1/3) ... [2024-11-22 10:40:08,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:40:08, skipping insertion in model container [2024-11-22 10:40:08,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:07" (2/3) ... [2024-11-22 10:40:08,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b987d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:40:08, skipping insertion in model container [2024-11-22 10:40:08,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:40:08" (3/3) ... [2024-11-22 10:40:08,273 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-39.i [2024-11-22 10:40:08,291 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 10:40:08,292 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 10:40:08,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 10:40:08,372 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;@41ac4e06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 10:40:08,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 10:40:08,376 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 10:40:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 10:40:08,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:40:08,389 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:08,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:40:08,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:40:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash 400622614, now seen corresponding path program 1 times [2024-11-22 10:40:08,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:40:08,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452566005] [2024-11-22 10:40:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:40:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-22 10:40:10,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:40:10,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452566005] [2024-11-22 10:40:10,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452566005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:40:10,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:40:10,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 10:40:10,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619328521] [2024-11-22 10:40:10,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:40:10,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 10:40:10,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:40:10,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 10:40:10,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 10:40:10,608 INFO L87 Difference]: Start difference. First operand has 48 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 10:40:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:40:11,090 INFO L93 Difference]: Finished difference Result 172 states and 287 transitions. [2024-11-22 10:40:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 10:40:11,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2024-11-22 10:40:11,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:40:11,104 INFO L225 Difference]: With dead ends: 172 [2024-11-22 10:40:11,104 INFO L226 Difference]: Without dead ends: 115 [2024-11-22 10:40:11,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 10:40:11,111 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 80 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 10:40:11,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 314 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 10:40:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-22 10:40:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 83. [2024-11-22 10:40:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-22 10:40:11,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2024-11-22 10:40:11,184 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 87 [2024-11-22 10:40:11,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:40:11,186 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2024-11-22 10:40:11,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 10:40:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2024-11-22 10:40:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 10:40:11,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:40:11,190 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:11,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 10:40:11,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:40:11,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:40:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1313057984, now seen corresponding path program 1 times [2024-11-22 10:40:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:40:11,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416421496] [2024-11-22 10:40:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:40:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-22 10:40:11,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:40:11,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416421496] [2024-11-22 10:40:11,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416421496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:40:11,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:40:11,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 10:40:11,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37835881] [2024-11-22 10:40:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:40:11,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 10:40:11,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:40:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 10:40:11,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 10:40:11,362 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:11,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:40:11,475 INFO L93 Difference]: Finished difference Result 211 states and 294 transitions. [2024-11-22 10:40:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 10:40:11,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-11-22 10:40:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:40:11,479 INFO L225 Difference]: With dead ends: 211 [2024-11-22 10:40:11,479 INFO L226 Difference]: Without dead ends: 131 [2024-11-22 10:40:11,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 10:40:11,484 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 47 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 10:40:11,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 173 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 10:40:11,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-22 10:40:11,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 121. [2024-11-22 10:40:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 78 states have internal predecessors, (92), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-22 10:40:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 170 transitions. [2024-11-22 10:40:11,525 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 170 transitions. Word has length 88 [2024-11-22 10:40:11,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:40:11,526 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 170 transitions. [2024-11-22 10:40:11,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:11,526 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions. [2024-11-22 10:40:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 10:40:11,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:40:11,530 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:11,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 10:40:11,530 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:40:11,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:40:11,532 INFO L85 PathProgramCache]: Analyzing trace with hash 764583191, now seen corresponding path program 1 times [2024-11-22 10:40:11,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:40:11,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796891807] [2024-11-22 10:40:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:11,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:40:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-22 10:40:12,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:40:12,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796891807] [2024-11-22 10:40:12,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796891807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:40:12,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:40:12,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 10:40:12,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329780712] [2024-11-22 10:40:12,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:40:12,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 10:40:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:40:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 10:40:12,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 10:40:12,398 INFO L87 Difference]: Start difference. First operand 121 states and 170 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:12,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:40:12,659 INFO L93 Difference]: Finished difference Result 160 states and 216 transitions. [2024-11-22 10:40:12,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 10:40:12,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-11-22 10:40:12,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:40:12,662 INFO L225 Difference]: With dead ends: 160 [2024-11-22 10:40:12,662 INFO L226 Difference]: Without dead ends: 158 [2024-11-22 10:40:12,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-22 10:40:12,664 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 10:40:12,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 206 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 10:40:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-22 10:40:12,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 137. [2024-11-22 10:40:12,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.202127659574468) internal successors, (113), 94 states have internal predecessors, (113), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-22 10:40:12,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 191 transitions. [2024-11-22 10:40:12,704 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 191 transitions. Word has length 88 [2024-11-22 10:40:12,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:40:12,705 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 191 transitions. [2024-11-22 10:40:12,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:12,705 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 191 transitions. [2024-11-22 10:40:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 10:40:12,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:40:12,710 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:40:12,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 10:40:12,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:40:12,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:40:12,711 INFO L85 PathProgramCache]: Analyzing trace with hash 766430233, now seen corresponding path program 1 times [2024-11-22 10:40:12,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:40:12,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329635979] [2024-11-22 10:40:12,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:12,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:40:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-22 10:40:14,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:40:14,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329635979] [2024-11-22 10:40:14,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329635979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:40:14,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 10:40:14,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 10:40:14,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569309685] [2024-11-22 10:40:14,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:40:14,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 10:40:14,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:40:14,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 10:40:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-22 10:40:14,361 INFO L87 Difference]: Start difference. First operand 137 states and 191 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:14,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:40:14,651 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions. [2024-11-22 10:40:14,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 10:40:14,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 88 [2024-11-22 10:40:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:40:14,654 INFO L225 Difference]: With dead ends: 152 [2024-11-22 10:40:14,654 INFO L226 Difference]: Without dead ends: 150 [2024-11-22 10:40:14,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-22 10:40:14,656 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 10:40:14,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 221 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 10:40:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-22 10:40:14,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2024-11-22 10:40:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.1914893617021276) internal successors, (112), 94 states have internal predecessors, (112), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-22 10:40:14,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 190 transitions. [2024-11-22 10:40:14,681 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 190 transitions. Word has length 88 [2024-11-22 10:40:14,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:40:14,681 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 190 transitions. [2024-11-22 10:40:14,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-22 10:40:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 190 transitions. [2024-11-22 10:40:14,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 10:40:14,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 10:40:14,684 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 10:40:14,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 10:40:14,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 10:40:14,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 10:40:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash 106134182, now seen corresponding path program 1 times [2024-11-22 10:40:14,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 10:40:14,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096536804] [2024-11-22 10:40:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:14,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 10:40:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-22 10:40:14,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 10:40:14,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096536804] [2024-11-22 10:40:14,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096536804] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 10:40:14,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800120624] [2024-11-22 10:40:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 10:40:14,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:40:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 10:40:14,804 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 10:40:14,822 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 10:40:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 10:40:14,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 10:40:14,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 10:40:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 708 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-22 10:40:15,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 10:40:15,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800120624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 10:40:15,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 10:40:15,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-22 10:40:15,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513720578] [2024-11-22 10:40:15,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 10:40:15,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 10:40:15,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 10:40:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 10:40:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 10:40:15,113 INFO L87 Difference]: Start difference. First operand 137 states and 190 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-22 10:40:15,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 10:40:15,162 INFO L93 Difference]: Finished difference Result 182 states and 249 transitions. [2024-11-22 10:40:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 10:40:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 175 [2024-11-22 10:40:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 10:40:15,165 INFO L225 Difference]: With dead ends: 182 [2024-11-22 10:40:15,165 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 10:40:15,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 10:40:15,169 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 10:40:15,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 108 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 10:40:15,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 10:40:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 10:40:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 10:40:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 10:40:15,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2024-11-22 10:40:15,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 10:40:15,174 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 10:40:15,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-22 10:40:15,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 10:40:15,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 10:40:15,178 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 10:40:15,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 10:40:15,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 10:40:15,385 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-22 10:40:15,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 10:40:16,659 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 10:40:16,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:40:16 BoogieIcfgContainer [2024-11-22 10:40:16,696 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 10:40:16,697 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 10:40:16,697 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 10:40:16,697 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 10:40:16,699 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:40:08" (3/4) ... [2024-11-22 10:40:16,702 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 10:40:16,706 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-22 10:40:16,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-22 10:40:16,712 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 10:40:16,712 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 10:40:16,714 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 10:40:16,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 10:40:16,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 10:40:16,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 10:40:16,817 INFO L158 Benchmark]: Toolchain (without parser) took 9575.80ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 99.8MB in the beginning and 249.3MB in the end (delta: -149.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,817 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 10:40:16,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.99ms. Allocated memory is still 167.8MB. Free memory was 99.6MB in the beginning and 136.3MB in the end (delta: -36.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.35ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 133.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,818 INFO L158 Benchmark]: Boogie Preprocessor took 65.16ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 130.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,819 INFO L158 Benchmark]: RCFGBuilder took 418.63ms. Allocated memory is still 167.8MB. Free memory was 130.0MB in the beginning and 113.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,819 INFO L158 Benchmark]: TraceAbstraction took 8430.80ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 112.6MB in the beginning and 255.6MB in the end (delta: -143.0MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,819 INFO L158 Benchmark]: Witness Printer took 120.03ms. Allocated memory is still 333.4MB. Free memory was 255.6MB in the beginning and 249.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 10:40:16,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 109.1MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.99ms. Allocated memory is still 167.8MB. Free memory was 99.6MB in the beginning and 136.3MB in the end (delta: -36.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.35ms. Allocated memory is still 167.8MB. Free memory was 136.3MB in the beginning and 133.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.16ms. Allocated memory is still 167.8MB. Free memory was 133.5MB in the beginning and 130.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 418.63ms. Allocated memory is still 167.8MB. Free memory was 130.0MB in the beginning and 113.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8430.80ms. Allocated memory was 167.8MB in the beginning and 333.4MB in the end (delta: 165.7MB). Free memory was 112.6MB in the beginning and 255.6MB in the end (delta: -143.0MB). Peak memory consumption was 138.8MB. Max. memory is 16.1GB. * Witness Printer took 120.03ms. Allocated memory is still 333.4MB. Free memory was 255.6MB in the beginning and 249.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 5, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 1022 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 690 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 332 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 76 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 701 NumberOfCodeBlocks, 701 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 3290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 379 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 3911/3912 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((((((var_1_10 == 0) && (0 <= k_loop)) && (0 <= last_1_var_1_10)) && (10 <= var_1_14)) && (0 <= 0)) && (last_1_var_1_10 <= 0)) && ((((short) var_1_14 + var_1_11) != 0) || (0 < (129 + var_1_11)))) && ((var_1_11 < 128) || (var_1_14 != var_1_11))) || (((((1 <= k_loop) && (10 <= var_1_14)) && (0 <= 0)) && ((((short) var_1_14 + var_1_11) != 0) || (0 < (129 + var_1_11)))) && ((var_1_11 < 128) || (var_1_14 != var_1_11)))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((((((var_1_10 == 0) && (0 <= last_1_var_1_10)) && (10 <= var_1_14)) && (0 <= 0)) && (last_1_var_1_10 <= 0)) && ((((short) var_1_14 + var_1_11) != 0) || (0 < (129 + var_1_11)))) && ((var_1_11 < 128) || (var_1_14 != var_1_11))) Ensures: ((((((((var_1_10 == 0) && (0 <= last_1_var_1_10)) && (10 <= var_1_14)) && (0 <= 0)) && (last_1_var_1_10 <= 0)) && ((((short) var_1_14 + var_1_11) != 0) || (0 < (129 + var_1_11)))) && ((var_1_11 < 128) || (var_1_14 != var_1_11))) && (((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_16 == \old(var_1_16))) && (last_1_var_1_6 == \old(last_1_var_1_6))) && (last_1_var_1_10 == \old(last_1_var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 10:40:16,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE