./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.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 93ae7f4320aeb5eadc7d42fef8f73afe8e6e658ec54f48f9ad9874df5186017d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:15:48,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:15:48,959 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-30 10:15:48,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:15:48,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:15:48,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:15:48,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:15:48,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:15:48,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:15:48,990 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:15:48,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:15:48,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:15:48,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:15:48,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:15:48,991 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:15:48,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:15:48,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:15:48,991 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:15:48,992 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:15:48,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:15:48,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:48,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:48,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:48,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:48,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:15:48,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:48,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:15:48,994 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 93ae7f4320aeb5eadc7d42fef8f73afe8e6e658ec54f48f9ad9874df5186017d [2025-04-30 10:15:49,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:15:49,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:15:49,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:15:49,256 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:15:49,257 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:15:49,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i [2025-04-30 10:15:50,529 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b4176d8/2ec0f7d4c3bb416c8453a0dab0256ccb/FLAGc18bae33a [2025-04-30 10:15:50,544 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException: Cannot invoke "String.equalsIgnoreCase(String)" because "kindStr" is null 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) [2025-04-30 10:15:50,765 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:15:50,766 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i [2025-04-30 10:15:50,777 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b4176d8/2ec0f7d4c3bb416c8453a0dab0256ccb/FLAGc18bae33a [2025-04-30 10:15:51,579 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b4176d8/2ec0f7d4c3bb416c8453a0dab0256ccb [2025-04-30 10:15:51,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:15:51,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:15:51,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:51,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:15:51,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:15:51,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:51" (1/1) ... [2025-04-30 10:15:51,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e4c80d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:51, skipping insertion in model container [2025-04-30 10:15:51,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:51" (1/1) ... [2025-04-30 10:15:51,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:15:51,922 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i[40784,40797] [2025-04-30 10:15:51,936 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:51,943 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:15:51,981 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i[40784,40797] [2025-04-30 10:15:51,985 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:52,049 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:15:52,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52 WrapperNode [2025-04-30 10:15:52,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:52,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:52,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:15:52,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:15:52,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,083 INFO L138 Inliner]: procedures = 452, calls = 18, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2025-04-30 10:15:52,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:52,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:15:52,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:15:52,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:15:52,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,101 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:15:52,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,106 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,107 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:15:52,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:15:52,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:15:52,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:15:52,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (1/1) ... [2025-04-30 10:15:52,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:15:52,138 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) [2025-04-30 10:15:52,140 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 [2025-04-30 10:15:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:15:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:15:52,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:15:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:15:52,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:15:52,214 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:15:52,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:15:52,300 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-04-30 10:15:52,300 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:15:52,307 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:15:52,307 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:15:52,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52 BoogieIcfgContainer [2025-04-30 10:15:52,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:15:52,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:15:52,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:15:52,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:15:52,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:15:51" (1/3) ... [2025-04-30 10:15:52,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59009e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:15:52, skipping insertion in model container [2025-04-30 10:15:52,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:52" (2/3) ... [2025-04-30 10:15:52,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59009e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:15:52, skipping insertion in model container [2025-04-30 10:15:52,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52" (3/3) ... [2025-04-30 10:15:52,315 INFO L128 eAbstractionObserver]: Analyzing ICFG loop4.i [2025-04-30 10:15:52,325 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:15:52,326 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop4.i that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-30 10:15:52,360 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:15:52,372 INFO L340 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;@17c2b8c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:15:52,372 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:15:52,375 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2025-04-30 10:15:52,379 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-30 10:15:52,379 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:15:52,379 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:15:52,380 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:15:52,384 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:15:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-30 10:15:52,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:15:52,389 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494770474] [2025-04-30 10:15:52,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:15:52,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:15:52,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:15:52,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:15:52,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:15:52,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:15:52,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:15:52,520 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494770474] [2025-04-30 10:15:52,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494770474] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:15:52,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:15:52,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:15:52,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060632049] [2025-04-30 10:15:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:15:52,524 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:15:52,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:15:52,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:15:52,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:15:52,546 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-30 10:15:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:15:52,557 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-30 10:15:52,558 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:15:52,559 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2025-04-30 10:15:52,559 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:15:52,563 INFO L225 Difference]: With dead ends: 32 [2025-04-30 10:15:52,563 INFO L226 Difference]: Without dead ends: 13 [2025-04-30 10:15:52,565 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:15:52,566 INFO L437 NwaCegarLoop]: 18 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, 18 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 [2025-04-30 10:15:52,567 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:15:52,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-30 10:15:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-30 10:15:52,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-04-30 10:15:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:15:52,586 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-30 10:15:52,586 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:15:52,586 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:15:52,586 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-30 10:15:52,587 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:15:52,587 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:15:52,587 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:15:52,587 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:15:52,588 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:15:52,588 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:15:52,589 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:15:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-30 10:15:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:15:52,589 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372376505] [2025-04-30 10:15:52,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:15:52,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:15:52,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:15:52,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:15:52,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:15:52,620 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:15:52,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:15:52,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:15:52,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:15:52,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:15:52,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:15:52,658 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:15:52,659 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:15:52,661 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:15:52,663 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-30 10:15:52,690 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:15:52,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:15:52 BoogieIcfgContainer [2025-04-30 10:15:52,693 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:15:52,694 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:15:52,694 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:15:52,694 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:15:52,695 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:15:52" (3/4) ... [2025-04-30 10:15:52,696 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:15:52,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:15:52,698 INFO L158 Benchmark]: Toolchain (without parser) took 1115.74ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 96.4MB in the end (delta: 16.2MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,698 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.53ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 66.0MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.24ms. Allocated memory is still 142.6MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: Boogie Preprocessor took 27.82ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: RCFGBuilder took 192.92ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 50.0MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: TraceAbstraction took 384.43ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 96.4MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,700 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 96.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:15:52,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.53ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 66.0MB in the end (delta: 46.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.24ms. Allocated memory is still 142.6MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.82ms. Allocated memory is still 142.6MB. Free memory was 63.4MB in the beginning and 61.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 192.92ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 50.0MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 384.43ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 96.4MB in the end (delta: -46.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 96.4MB in the end (delta: 27.1kB). There was no memory consumed. 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 - UnprovableResult [Line: 988]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 1023, overapproximation of someBinaryArithmeticDOUBLEoperation at line 998, overapproximation of someBinaryDOUBLEComparisonOperation at line 997, overapproximation of someBinaryDOUBLEComparisonOperation at line 1031, overapproximation of someBinaryArithmeticFLOAToperation at line 1011, overapproximation of someBinaryArithmeticFLOAToperation at line 1005. Possible FailurePath: [L990] float pi = 3.14159 ; VAL [pi=314159/100000] [L1009] int x ; [L1010] float angleInRadian ; [L1011] float phaseLag = pi/2, phaseLead=pi ; [L1012] double sum1=0.0, sum2 = 0.0 ; [L1013] int temp; [L1014] double count=0.0 ; VAL [pi=314159/100000, sum1=0, sum2=0] [L1020] x = __VERIFIER_nondet_int() [L1021] CALL assume_abort_if_not(x > -180 && x < 180) [L986] COND FALSE !(!cond) VAL [pi=314159/100000] [L1021] RET assume_abort_if_not(x > -180 && x < 180) [L1022] CALL, EXPR radianMeasure(x) [L1005] return (degrees * (pi/180)) ; VAL [pi=314159/100000] [L1022] RET, EXPR radianMeasure(x) [L1022] angleInRadian = radianMeasure(x) [L1023] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L1024] sum1 = sum1 + cos(angleInRadian+phaseLag) [L1026] temp = __VERIFIER_nondet_int() [L1027] count++ VAL [pi=314159/100000, temp=0] [L1028] COND TRUE temp == 0 VAL [pi=314159/100000] [L1031] CALL, EXPR diff(sum1,sum2) [L997] COND TRUE x1 > x2 [L998] return (x1-x2) ; VAL [pi=314159/100000] [L1031] RET, EXPR diff(sum1,sum2) [L1031] CALL __VERIFIER_assert(diff(sum1,sum2) <= count) [L988] COND TRUE !(cond) VAL [pi=314159/100000] [L988] reach_error() VAL [pi=314159/100000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 21 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-30 10:15:52,717 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 93ae7f4320aeb5eadc7d42fef8f73afe8e6e658ec54f48f9ad9874df5186017d --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:15:54,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:15:54,572 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-30 10:15:54,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:15:54,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:15:54,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:15:54,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:15:54,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:15:54,595 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:15:54,595 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:15:54,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:15:54,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:15:54,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:15:54,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:15:54,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:15:54,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:15:54,598 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:15:54,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:54,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:15:54,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:54,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:15:54,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:15:54,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 93ae7f4320aeb5eadc7d42fef8f73afe8e6e658ec54f48f9ad9874df5186017d [2025-04-30 10:15:54,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:15:54,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:15:54,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:15:54,844 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:15:54,846 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:15:54,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i [2025-04-30 10:15:56,202 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b23ab416/2d065a3ffb53441380ebfd9857c2a74f/FLAG757c507f9 [2025-04-30 10:15:56,427 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:15:56,428 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i [2025-04-30 10:15:56,440 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b23ab416/2d065a3ffb53441380ebfd9857c2a74f/FLAG757c507f9 [2025-04-30 10:15:57,252 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b23ab416/2d065a3ffb53441380ebfd9857c2a74f [2025-04-30 10:15:57,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:15:57,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:15:57,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:57,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:15:57,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:15:57,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea20e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57, skipping insertion in model container [2025-04-30 10:15:57,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:15:57,616 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i[40784,40797] [2025-04-30 10:15:57,638 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:57,649 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:15:57,714 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop4.i[40784,40797] [2025-04-30 10:15:57,719 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:15:57,810 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:15:57,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57 WrapperNode [2025-04-30 10:15:57,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:15:57,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:57,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:15:57,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:15:57,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,869 INFO L138 Inliner]: procedures = 453, calls = 18, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 69 [2025-04-30 10:15:57,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:15:57,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:15:57,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:15:57,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:15:57,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,903 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2025-04-30 10:15:57,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,909 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:15:57,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:15:57,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:15:57,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:15:57,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (1/1) ... [2025-04-30 10:15:57,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:15:57,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:15:57,971 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) [2025-04-30 10:15:57,986 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 [2025-04-30 10:15:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-04-30 10:15:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-04-30 10:15:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:15:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:15:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:15:58,087 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:15:58,089 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:16:05,357 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-04-30 10:16:05,358 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:16:05,363 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:16:05,363 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:16:05,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:05 BoogieIcfgContainer [2025-04-30 10:16:05,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:16:05,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:16:05,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:16:05,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:16:05,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:15:57" (1/3) ... [2025-04-30 10:16:05,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d839abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:16:05, skipping insertion in model container [2025-04-30 10:16:05,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:15:57" (2/3) ... [2025-04-30 10:16:05,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d839abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:16:05, skipping insertion in model container [2025-04-30 10:16:05,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:05" (3/3) ... [2025-04-30 10:16:05,370 INFO L128 eAbstractionObserver]: Analyzing ICFG loop4.i [2025-04-30 10:16:05,379 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:16:05,380 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG loop4.i that has 1 procedures, 17 locations, 21 edges, 1 initial locations, 1 loop locations, and 1 error locations. [2025-04-30 10:16:05,413 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:16:05,421 INFO L340 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;@2fc5827d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:16:05,421 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:16:05,423 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) [2025-04-30 10:16:05,426 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-30 10:16:05,426 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:16:05,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:16:05,427 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:16:05,430 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:16:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash 620393963, now seen corresponding path program 1 times [2025-04-30 10:16:05,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:16:05,437 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248535307] [2025-04-30 10:16:05,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:16:05,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-04-30 10:16:05,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-30 10:16:05,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-04-30 10:16:05,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-04-30 10:16:05,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:16:05,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:16:05,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:05,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:16:05,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-04-30 10:16:05,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:16:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:16:05,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:16:05,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-04-30 10:16:05,581 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248535307] [2025-04-30 10:16:05,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248535307] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:16:05,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:16:05,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:16:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344111287] [2025-04-30 10:16:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:16:05,585 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:16:05,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-04-30 10:16:05,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:16:05,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:16:05,602 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-30 10:16:05,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:16:05,612 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2025-04-30 10:16:05,613 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:16:05,614 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2025-04-30 10:16:05,614 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:16:05,617 INFO L225 Difference]: With dead ends: 32 [2025-04-30 10:16:05,618 INFO L226 Difference]: Without dead ends: 13 [2025-04-30 10:16:05,619 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:16:05,621 INFO L437 NwaCegarLoop]: 18 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, 18 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 [2025-04-30 10:16:05,622 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:16:05,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-30 10:16:05,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-30 10:16:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2025-04-30 10:16:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:16:05,642 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2025-04-30 10:16:05,642 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:16:05,642 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:16:05,642 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-04-30 10:16:05,642 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:16:05,643 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:16:05,643 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:16:05,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:16:05,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-04-30 10:16:05,843 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-04-30 10:16:05,844 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:16:05,845 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:16:05,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1325873706, now seen corresponding path program 1 times [2025-04-30 10:16:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:16:05,845 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167965251] [2025-04-30 10:16:05,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:16:05,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-04-30 10:16:05,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-30 10:16:05,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-04-30 10:16:05,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-04-30 10:16:05,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:16:06,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:16:06,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:06,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:16:06,239 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:16:06,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:16:06,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:16:06,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:16:06,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:16:06,618 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-30 10:16:06,618 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:16:06,621 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:16:06,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-04-30 10:16:06,826 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-04-30 10:16:06,828 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-30 10:16:06,860 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:16:06,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:16:06 BoogieIcfgContainer [2025-04-30 10:16:06,863 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:16:06,864 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:16:06,864 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:16:06,864 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:16:06,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:16:05" (3/4) ... [2025-04-30 10:16:06,867 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:16:06,867 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:16:06,868 INFO L158 Benchmark]: Toolchain (without parser) took 9612.15ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 58.0MB in the end (delta: 33.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,868 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.13ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 43.0MB in the end (delta: 48.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.78ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,868 INFO L158 Benchmark]: Boogie Preprocessor took 53.30ms. Allocated memory is still 117.4MB. Free memory was 40.2MB in the beginning and 38.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,868 INFO L158 Benchmark]: RCFGBuilder took 7439.06ms. Allocated memory is still 117.4MB. Free memory was 38.3MB in the beginning and 81.0MB in the end (delta: -42.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,869 INFO L158 Benchmark]: TraceAbstraction took 1498.13ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 58.8MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:16:06,870 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 58.0MB in the end (delta: 767.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:16:06,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.13ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 43.0MB in the end (delta: 48.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.78ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.30ms. Allocated memory is still 117.4MB. Free memory was 40.2MB in the beginning and 38.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 7439.06ms. Allocated memory is still 117.4MB. Free memory was 38.3MB in the beginning and 81.0MB in the end (delta: -42.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1498.13ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 58.8MB in the end (delta: 21.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 58.0MB in the end (delta: 767.8kB). There was no memory consumed. 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 - UnprovableResult [Line: 988]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of cos at line 1024, overapproximation of sin at line 1023. Possible FailurePath: [L990] float pi = 3.14159 ; VAL [pi=3.141590118408203] [L1009] int x ; [L1010] float angleInRadian ; [L1011] float phaseLag = pi/2, phaseLead=pi ; [L1012] double sum1=0.0, sum2 = 0.0 ; [L1013] int temp; [L1014] double count=0.0 ; VAL [count=0.0, pi=3.141590118408203, sum1=0.0, sum2=0.0] [L1020] x = __VERIFIER_nondet_int() [L1021] CALL assume_abort_if_not(x > -180 && x < 180) [L986] COND FALSE !(!cond) VAL [pi=3.141590118408203] [L1021] RET assume_abort_if_not(x > -180 && x < 180) [L1022] CALL, EXPR radianMeasure(x) [L1005] return (degrees * (pi/180)) ; VAL [\result=0.0, pi=3.141590118408203] [L1022] RET, EXPR radianMeasure(x) [L1022] angleInRadian = radianMeasure(x) [L1023] sum2 = sum2 + sin(angleInRadian+2*phaseLead) [L1024] sum1 = sum1 + cos(angleInRadian+phaseLag) [L1026] temp = __VERIFIER_nondet_int() [L1027] count++ VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-2.0] [L1028] COND TRUE temp == 0 VAL [count=1.0, pi=3.141590118408203, sum1=0.0, sum2=-2.0] [L1031] CALL, EXPR diff(sum1,sum2) [L997] COND TRUE x1 > x2 [L998] return (x1-x2) ; VAL [\result=2.0, pi=3.141590118408203] [L1031] RET, EXPR diff(sum1,sum2) [L1031] CALL __VERIFIER_assert(diff(sum1,sum2) <= count) [L988] COND TRUE !(cond) VAL [pi=3.141590118408203] [L988] reach_error() VAL [pi=3.141590118408203] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 21 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-30 10:16:06,904 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: UNKNOWN: Overapproximated counterexample