./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b745f2eefec39227a3dae672aed32affddda67824dced86b7d9f77df6468e472 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 12:44:08,426 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 12:44:08,481 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 12:44:08,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 12:44:08,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 12:44:08,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 12:44:08,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 12:44:08,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 12:44:08,513 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 12:44:08,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 12:44:08,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 12:44:08,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 12:44:08,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 12:44:08,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 12:44:08,517 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 12:44:08,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 12:44:08,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 12:44:08,518 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 12:44:08,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 12:44:08,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 12:44:08,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 12:44:08,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 12:44:08,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 12:44:08,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 12:44:08,522 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 12:44:08,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 12:44:08,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 12:44:08,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 12:44:08,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 12:44:08,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 12:44:08,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:44:08,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 12:44:08,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 12:44:08,525 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 12:44:08,525 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 12:44:08,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 12:44:08,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 12:44:08,528 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b745f2eefec39227a3dae672aed32affddda67824dced86b7d9f77df6468e472 [2024-11-22 12:44:08,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 12:44:08,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 12:44:08,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 12:44:08,780 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 12:44:08,780 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 12:44:08,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2024-11-22 12:44:10,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 12:44:10,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 12:44:10,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i [2024-11-22 12:44:10,205 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75b8cf19/3ab90a9b524844c09bfb4b84cc25a20b/FLAG785af7008 [2024-11-22 12:44:10,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b75b8cf19/3ab90a9b524844c09bfb4b84cc25a20b [2024-11-22 12:44:10,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 12:44:10,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 12:44:10,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 12:44:10,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 12:44:10,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 12:44:10,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700a474e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10, skipping insertion in model container [2024-11-22 12:44:10,230 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 12:44:10,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2024-11-22 12:44:10,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:44:10,477 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 12:44:10,487 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-39.i[917,930] [2024-11-22 12:44:10,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 12:44:10,529 INFO L204 MainTranslator]: Completed translation [2024-11-22 12:44:10,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10 WrapperNode [2024-11-22 12:44:10,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 12:44:10,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 12:44:10,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 12:44:10,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 12:44:10,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,577 INFO L138 Inliner]: procedures = 29, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 616 [2024-11-22 12:44:10,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 12:44:10,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 12:44:10,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 12:44:10,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 12:44:10,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,609 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-11-22 12:44:10,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 12:44:10,663 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 12:44:10,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 12:44:10,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 12:44:10,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (1/1) ... [2024-11-22 12:44:10,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 12:44:10,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:10,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 12:44:10,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 12:44:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 12:44:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-22 12:44:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-22 12:44:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-22 12:44:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-22 12:44:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-22 12:44:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 12:44:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-22 12:44:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-22 12:44:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-22 12:44:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 12:44:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 12:44:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 12:44:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-22 12:44:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 12:44:10,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 12:44:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 12:44:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 12:44:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 12:44:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 12:44:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 12:44:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 12:44:10,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 12:44:10,919 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 12:44:10,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 12:44:11,307 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-11-22 12:44:11,308 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 12:44:11,318 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 12:44:11,318 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 12:44:11,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:11 BoogieIcfgContainer [2024-11-22 12:44:11,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 12:44:11,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 12:44:11,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 12:44:11,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 12:44:11,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:44:10" (1/3) ... [2024-11-22 12:44:11,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a69e4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:11, skipping insertion in model container [2024-11-22 12:44:11,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:10" (2/3) ... [2024-11-22 12:44:11,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a69e4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:11, skipping insertion in model container [2024-11-22 12:44:11,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:11" (3/3) ... [2024-11-22 12:44:11,325 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-39.i [2024-11-22 12:44:11,338 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 12:44:11,338 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 12:44:11,389 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 12:44:11,398 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;@78b81735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 12:44:11,398 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 12:44:11,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 12:44:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 12:44:11,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:11,416 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:11,416 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:11,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1938211499, now seen corresponding path program 1 times [2024-11-22 12:44:11,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:11,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494172525] [2024-11-22 12:44:11,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:11,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-22 12:44:11,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:11,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494172525] [2024-11-22 12:44:11,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494172525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 12:44:11,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087043314] [2024-11-22 12:44:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:11,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 12:44:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 12:44:11,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 12:44:11,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 12:44:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:11,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 12:44:11,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 12:44:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-22 12:44:11,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 12:44:11,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087043314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:11,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 12:44:11,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 12:44:11,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458819773] [2024-11-22 12:44:11,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:12,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 12:44:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 12:44:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:44:12,020 INFO L87 Difference]: Start difference. First operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:12,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:12,041 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2024-11-22 12:44:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 12:44:12,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-22 12:44:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:12,071 INFO L225 Difference]: With dead ends: 233 [2024-11-22 12:44:12,071 INFO L226 Difference]: Without dead ends: 116 [2024-11-22 12:44:12,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 12:44:12,080 INFO L432 NwaCegarLoop]: 170 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, 170 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:12,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 12:44:12,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-22 12:44:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-22 12:44:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 12:44:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2024-11-22 12:44:12,174 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 128 [2024-11-22 12:44:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:12,174 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2024-11-22 12:44:12,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2024-11-22 12:44:12,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 12:44:12,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:12,180 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:12,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 12:44:12,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 12:44:12,381 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:12,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash -321601841, now seen corresponding path program 1 times [2024-11-22 12:44:12,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:12,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236018788] [2024-11-22 12:44:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:12,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-22 12:44:15,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:15,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236018788] [2024-11-22 12:44:15,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236018788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:15,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:15,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-22 12:44:15,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220797364] [2024-11-22 12:44:15,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:15,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 12:44:15,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:15,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 12:44:15,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-22 12:44:15,654 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-22 12:44:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:17,619 INFO L93 Difference]: Finished difference Result 382 states and 559 transitions. [2024-11-22 12:44:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 12:44:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 128 [2024-11-22 12:44:17,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:17,622 INFO L225 Difference]: With dead ends: 382 [2024-11-22 12:44:17,622 INFO L226 Difference]: Without dead ends: 269 [2024-11-22 12:44:17,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2024-11-22 12:44:17,624 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 428 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:17,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 2087 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 12:44:17,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-22 12:44:17,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 252. [2024-11-22 12:44:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 224 states have (on average 1.4330357142857142) internal successors, (321), 226 states have internal predecessors, (321), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 369 transitions. [2024-11-22 12:44:17,653 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 369 transitions. Word has length 128 [2024-11-22 12:44:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:17,658 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 369 transitions. [2024-11-22 12:44:17,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.1875) internal successors, (51), 17 states have internal predecessors, (51), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-22 12:44:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 369 transitions. [2024-11-22 12:44:17,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 12:44:17,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:17,661 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:17,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 12:44:17,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:17,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash 358456529, now seen corresponding path program 1 times [2024-11-22 12:44:17,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:17,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881100641] [2024-11-22 12:44:17,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:17,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-22 12:44:18,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:18,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881100641] [2024-11-22 12:44:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881100641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178637844] [2024-11-22 12:44:18,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:18,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:18,322 INFO L87 Difference]: Start difference. First operand 252 states and 369 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:18,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:18,923 INFO L93 Difference]: Finished difference Result 587 states and 861 transitions. [2024-11-22 12:44:18,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:44:18,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-22 12:44:18,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:18,926 INFO L225 Difference]: With dead ends: 587 [2024-11-22 12:44:18,926 INFO L226 Difference]: Without dead ends: 338 [2024-11-22 12:44:18,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:44:18,928 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 321 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:18,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 649 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 12:44:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-22 12:44:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 274. [2024-11-22 12:44:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 246 states have (on average 1.434959349593496) internal successors, (353), 248 states have internal predecessors, (353), 24 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-22 12:44:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 401 transitions. [2024-11-22 12:44:18,947 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 401 transitions. Word has length 128 [2024-11-22 12:44:18,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:18,947 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 401 transitions. [2024-11-22 12:44:18,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:18,948 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 401 transitions. [2024-11-22 12:44:18,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 12:44:18,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:18,949 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:18,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 12:44:18,949 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:18,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1909949743, now seen corresponding path program 1 times [2024-11-22 12:44:18,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:18,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711815376] [2024-11-22 12:44:18,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:18,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 12:44:19,355 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-22 12:44:19,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 12:44:19,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711815376] [2024-11-22 12:44:19,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711815376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 12:44:19,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 12:44:19,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 12:44:19,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934526954] [2024-11-22 12:44:19,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 12:44:19,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 12:44:19,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 12:44:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 12:44:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 12:44:19,358 INFO L87 Difference]: Start difference. First operand 274 states and 401 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 12:44:19,819 INFO L93 Difference]: Finished difference Result 553 states and 805 transitions. [2024-11-22 12:44:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 12:44:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-22 12:44:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 12:44:19,821 INFO L225 Difference]: With dead ends: 553 [2024-11-22 12:44:19,821 INFO L226 Difference]: Without dead ends: 282 [2024-11-22 12:44:19,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-22 12:44:19,826 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 405 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 12:44:19,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 691 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 12:44:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-22 12:44:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 216. [2024-11-22 12:44:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 193 states have (on average 1.4196891191709844) internal successors, (274), 194 states have internal predecessors, (274), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-22 12:44:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 312 transitions. [2024-11-22 12:44:19,840 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 312 transitions. Word has length 128 [2024-11-22 12:44:19,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 12:44:19,841 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 312 transitions. [2024-11-22 12:44:19,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-22 12:44:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2024-11-22 12:44:19,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 12:44:19,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 12:44:19,842 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 12:44:19,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 12:44:19,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 12:44:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 12:44:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1229891373, now seen corresponding path program 1 times [2024-11-22 12:44:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 12:44:19,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476762681] [2024-11-22 12:44:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 12:44:19,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 12:44:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat