./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd --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 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:10:06,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:10:06,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:10:06,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:10:06,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:10:06,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:10:06,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:10:06,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:10:06,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:10:06,385 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:10:06,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:10:06,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:10:06,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:10:06,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:10:06,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:10:06,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:10:06,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:10:06,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:10:06,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:10:06,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:06,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:10:06,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:10:06,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:10:06,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:10:06,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:10:06,390 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:10:06,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:10:06,390 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:10:06,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:10:06,390 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 [2024-11-13 16:10:06,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:06,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:06,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:06,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:06,679 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:06,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c Unable to find full path for "g++" [2024-11-13 16:10:08,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:08,627 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) [2024-11-13 16:10:08,894 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:08,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-11-13 16:10:08,905 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/c47e33fdb/2b8417f788d445aa88c310fca536c229/FLAG3d7675c0e [2024-11-13 16:10:08,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/c47e33fdb/2b8417f788d445aa88c310fca536c229 [2024-11-13 16:10:08,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:08,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:08,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:08,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:08,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:08,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:08" (1/1) ... [2024-11-13 16:10:08,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd10caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:08, skipping insertion in model container [2024-11-13 16:10:08,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:08" (1/1) ... [2024-11-13 16:10:08,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:09,188 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-11-13 16:10:09,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:09,202 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:09,236 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-11-13 16:10:09,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:09,258 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:09,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09 WrapperNode [2024-11-13 16:10:09,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:09,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:09,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:09,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:09,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,308 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2024-11-13 16:10:09,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:09,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:09,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:09,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:09,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,350 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-13 16:10:09,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:09,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:09,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:09,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:09,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (1/1) ... [2024-11-13 16:10:09,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:09,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:09,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:09,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-13 16:10:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-13 16:10:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:09,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:10:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:10:09,592 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:09,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:09,857 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 16:10:09,857 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:09,873 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:09,874 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 16:10:09,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:09 BoogieIcfgContainer [2024-11-13 16:10:09,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:09,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:10:09,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:10:09,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:10:09,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:10:08" (1/3) ... [2024-11-13 16:10:09,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b273456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:09, skipping insertion in model container [2024-11-13 16:10:09,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:09" (2/3) ... [2024-11-13 16:10:09,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b273456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:09, skipping insertion in model container [2024-11-13 16:10:09,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:09" (3/3) ... [2024-11-13 16:10:09,884 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2024-11-13 16:10:09,903 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:10:09,908 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1052b.c that has 1 procedures, 41 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-13 16:10:09,982 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:09,997 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;@c92da93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:09,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:10:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 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) [2024-11-13 16:10:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:10:10,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:10,008 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:10,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:10,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:10,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1208978411, now seen corresponding path program 1 times [2024-11-13 16:10:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:10,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577311740] [2024-11-13 16:10:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:10,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:10,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577311740] [2024-11-13 16:10:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577311740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520007054] [2024-11-13 16:10:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:10,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:10:10,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:10,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:10:10,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:10:10,179 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 40 states have internal predecessors, (62), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 16:10:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:10,198 INFO L93 Difference]: Finished difference Result 80 states and 122 transitions. [2024-11-13 16:10:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:10:10,200 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-13 16:10:10,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:10:10,208 INFO L225 Difference]: With dead ends: 80 [2024-11-13 16:10:10,208 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 16:10:10,211 INFO L431 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 [2024-11-13 16:10:10,215 INFO L432 NwaCegarLoop]: 55 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, 55 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:10:10,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:10:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 16:10:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-13 16:10:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 37 states have internal predecessors, (52), 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) [2024-11-13 16:10:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2024-11-13 16:10:10,257 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 12 [2024-11-13 16:10:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:10:10,258 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2024-11-13 16:10:10,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 16:10:10,259 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-13 16:10:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 16:10:10,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:10,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:10,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:10:10,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:10,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -256525167, now seen corresponding path program 1 times [2024-11-13 16:10:10,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:10,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448627493] [2024-11-13 16:10:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:10,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:10,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:10,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:10,505 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:10:10,506 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:10:10,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:10:10,513 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 16:10:10,538 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:10:10,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:10:10 BoogieIcfgContainer [2024-11-13 16:10:10,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:10:10,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:10:10,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:10:10,548 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:10:10,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:09" (3/4) ... [2024-11-13 16:10:10,552 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:10:10,553 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:10:10,554 INFO L158 Benchmark]: Toolchain (without parser) took 1618.79ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 87.3MB in the end (delta: 5.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-11-13 16:10:10,555 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:10,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.96ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:10,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.21ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:10,557 INFO L158 Benchmark]: Boogie Preprocessor took 66.24ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:10,557 INFO L158 Benchmark]: RCFGBuilder took 494.53ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 62.1MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:10:10,559 INFO L158 Benchmark]: TraceAbstraction took 670.71ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 87.8MB in the end (delta: -26.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-13 16:10:10,559 INFO L158 Benchmark]: Witness Printer took 5.40ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 87.3MB in the end (delta: 552.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:10,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.96ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.5MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.21ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.24ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.53ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 62.1MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 670.71ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 87.8MB in the end (delta: -26.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 5.40ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 87.3MB in the end (delta: 552.0kB). 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: 82]: 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 someBinaryArithmeticFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = -1.0f / 0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000013] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, ix=2139095040, j0=128, x=1000000000000000000000000000013] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, ix=2139095040, x=1000000000000000000000000000013] [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_floor=1000000000000000000000000000000, i0=-8388608, x=1000000000000000000000000000013] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] CALL, EXPR isinf_float(res) [L60] __int32_t ix; VAL [huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000014] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); VAL [\result=0, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000014] [L81] RET, EXPR isinf_float(res) [L81] COND TRUE !isinf_float(res) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 55 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, 55 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=41occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:10:10,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd --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 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:10:13,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:10:13,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 16:10:13,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:10:13,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:10:13,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:10:13,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:10:13,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:10:13,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:10:13,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:10:13,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:10:13,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:10:13,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:10:13,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:10:13,408 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:10:13,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:10:13,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:10:13,409 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:10:13,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:10:13,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:13,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:10:13,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:10:13,411 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd 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 -> 3b28f1771fed46d057da916762844447a30bce2821ca5ce4d8266d25ce5978b7 [2024-11-13 16:10:13,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:13,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:13,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:13,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:13,704 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:13,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c Unable to find full path for "g++" [2024-11-13 16:10:15,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:15,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:15,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2024-11-13 16:10:15,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/f6e4f88d2/c14ea8d58789436aa507567078452129/FLAG6035fa2bf [2024-11-13 16:10:15,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/data/f6e4f88d2/c14ea8d58789436aa507567078452129 [2024-11-13 16:10:15,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:15,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:15,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:15,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:15,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:15,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:15" (1/1) ... [2024-11-13 16:10:15,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1df8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:15, skipping insertion in model container [2024-11-13 16:10:15,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:15" (1/1) ... [2024-11-13 16:10:15,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:16,087 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-11-13 16:10:16,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:16,109 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:16,146 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c[1778,1791] [2024-11-13 16:10:16,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:16,172 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:16,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16 WrapperNode [2024-11-13 16:10:16,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:16,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:16,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:16,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:16,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,216 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-11-13 16:10:16,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:16,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:16,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:16,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:16,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,257 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-13 16:10:16,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:16,298 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:16,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:16,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:16,299 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (1/1) ... [2024-11-13 16:10:16,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:16,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:16,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:16,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:16,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-13 16:10:16,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:16,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-13 16:10:16,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:10:16,478 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:16,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:17,048 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 16:10:17,048 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:17,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:17,057 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 16:10:17,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:17 BoogieIcfgContainer [2024-11-13 16:10:17,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:17,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:10:17,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:10:17,069 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:10:17,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:10:15" (1/3) ... [2024-11-13 16:10:17,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79191a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:17, skipping insertion in model container [2024-11-13 16:10:17,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:16" (2/3) ... [2024-11-13 16:10:17,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79191a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:17, skipping insertion in model container [2024-11-13 16:10:17,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:17" (3/3) ... [2024-11-13 16:10:17,072 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2024-11-13 16:10:17,089 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:10:17,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1052b.c that has 1 procedures, 29 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-13 16:10:17,152 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:17,168 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;@a65ccca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:17,168 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:10:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 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) [2024-11-13 16:10:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:10:17,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:17,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:17,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:17,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1544312471, now seen corresponding path program 1 times [2024-11-13 16:10:17,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307998498] [2024-11-13 16:10:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:17,206 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 [2024-11-13 16:10:17,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:10:17,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 16:10:17,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:17,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:10:17,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:17,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:17,392 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:17,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:17,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307998498] [2024-11-13 16:10:17,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307998498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:17,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:17,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:17,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023684955] [2024-11-13 16:10:17,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:17,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:10:17,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:17,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:10:17,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:10:17,420 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 16:10:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:17,433 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2024-11-13 16:10:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:10:17,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-13 16:10:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:10:17,441 INFO L225 Difference]: With dead ends: 56 [2024-11-13 16:10:17,441 INFO L226 Difference]: Without dead ends: 26 [2024-11-13 16:10:17,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:10:17,447 INFO L432 NwaCegarLoop]: 37 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, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:10:17,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:10:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-13 16:10:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-13 16:10:17,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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) [2024-11-13 16:10:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2024-11-13 16:10:17,477 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2024-11-13 16:10:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:10:17,478 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2024-11-13 16:10:17,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 16:10:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2024-11-13 16:10:17,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 16:10:17,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:17,479 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:17,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:17,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:17,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:17,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:17,680 INFO L85 PathProgramCache]: Analyzing trace with hash -803853785, now seen corresponding path program 1 times [2024-11-13 16:10:17,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:17,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360009480] [2024-11-13 16:10:17,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:17,681 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 [2024-11-13 16:10:17,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:10:17,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 16:10:17,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:17,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 16:10:17,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:18,098 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:18,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360009480] [2024-11-13 16:10:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360009480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:18,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:10:18,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429575493] [2024-11-13 16:10:18,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:18,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:10:18,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:10:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:10:18,101 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-13 16:10:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:18,570 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2024-11-13 16:10:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 16:10:18,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) Word has length 14 [2024-11-13 16:10:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:10:18,573 INFO L225 Difference]: With dead ends: 39 [2024-11-13 16:10:18,573 INFO L226 Difference]: Without dead ends: 24 [2024-11-13 16:10:18,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:10:18,574 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 33 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:10:18,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 39 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:10:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-13 16:10:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2024-11-13 16:10:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2024-11-13 16:10:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-11-13 16:10:18,582 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 14 [2024-11-13 16:10:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:10:18,583 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-11-13 16:10:18,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 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) [2024-11-13 16:10:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-11-13 16:10:18,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 16:10:18,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:18,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:18,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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)] Forceful destruction successful, exit code 0 [2024-11-13 16:10:18,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:18,785 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:18,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash 5492841, now seen corresponding path program 1 times [2024-11-13 16:10:18,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:18,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039915235] [2024-11-13 16:10:18,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:18,786 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 [2024-11-13 16:10:18,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:10:18,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 16:10:18,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 (4)] Waiting until timeout for monitored process [2024-11-13 16:10:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:18,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 16:10:18,937 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:19,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:19,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:19,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:19,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039915235] [2024-11-13 16:10:19,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039915235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 16:10:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363909913] [2024-11-13 16:10:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:19,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:10:19,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:19,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:10:19,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:10:19,162 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 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) [2024-11-13 16:10:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:19,640 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-11-13 16:10:19,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:10:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 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) Word has length 14 [2024-11-13 16:10:19,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:10:19,641 INFO L225 Difference]: With dead ends: 30 [2024-11-13 16:10:19,641 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 16:10:19,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:10:19,643 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 26 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:10:19,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 87 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:10:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 16:10:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 16:10:19,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 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) [2024-11-13 16:10:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-13 16:10:19,654 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2024-11-13 16:10:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:10:19,654 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-13 16:10:19,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 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) [2024-11-13 16:10:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-13 16:10:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:10:19,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:10:19,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:19,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 (4)] Ended with exit code 0 [2024-11-13 16:10:19,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:19,856 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:10:19,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash 608192004, now seen corresponding path program 1 times [2024-11-13 16:10:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:19,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971687154] [2024-11-13 16:10:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:19,857 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 [2024-11-13 16:10:19,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:10:19,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 16:10:19,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 (5)] Waiting until timeout for monitored process [2024-11-13 16:10:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:20,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 16:10:20,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:20,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 16:10:20,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-13 16:10:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:10:20,229 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:20,230 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971687154] [2024-11-13 16:10:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971687154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:10:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264892991] [2024-11-13 16:10:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:20,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:10:20,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:20,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:10:20,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:10:20,231 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-13 16:10:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:10:20,338 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2024-11-13 16:10:20,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:10:20,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2024-11-13 16:10:20,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:10:20,339 INFO L225 Difference]: With dead ends: 21 [2024-11-13 16:10:20,339 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 16:10:20,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:10:20,340 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:10:20,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:10:20,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 16:10:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 16:10:20,342 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) [2024-11-13 16:10:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 16:10:20,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-13 16:10:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:10:20,342 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:10:20,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-13 16:10:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 16:10:20,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:10:20,345 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:10:20,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 (5)] Ended with exit code 0 [2024-11-13 16:10:20,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 16:10:20,548 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 16:10:20,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 16:10:20,603 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:10:20,616 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 16:10:20,617 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 16:10:20,617 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 16:10:20,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 16:10:20,619 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 16:10:20,620 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 16:10:20,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:10:20 BoogieIcfgContainer [2024-11-13 16:10:20,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:10:20,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:10:20,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:10:20,623 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:10:20,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:17" (3/4) ... [2024-11-13 16:10:20,628 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:10:20,636 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-13 16:10:20,636 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 16:10:20,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:10:20,640 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:10:20,724 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:10:20,724 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:10:20,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:10:20,725 INFO L158 Benchmark]: Toolchain (without parser) took 4874.49ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 72.8MB in the end (delta: 19.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-13 16:10:20,725 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:20,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.00ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:20,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.87ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:20,726 INFO L158 Benchmark]: Boogie Preprocessor took 79.79ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:20,726 INFO L158 Benchmark]: RCFGBuilder took 759.50ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 62.7MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:10:20,727 INFO L158 Benchmark]: TraceAbstraction took 3561.39ms. Allocated memory is still 117.4MB. Free memory was 62.1MB in the beginning and 77.7MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:20,727 INFO L158 Benchmark]: Witness Printer took 101.77ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 72.8MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:20,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.00ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.87ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 79.79ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 76.5MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 759.50ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 62.7MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3561.39ms. Allocated memory is still 117.4MB. Free memory was 62.1MB in the beginning and 77.7MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.77ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 72.8MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 82]: 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 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 170 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 71 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 9 QuantifiedInterpolants, 347 SizeOfPredicates, 13 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-13 16:10:20,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6068cf-66c5-4680-803c-929402ad5787/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE