./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 Calling Ultimate with: /usr/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/ldv-regression/rule57_ebda_blast.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.graphml --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 87a050a9ba88ec48bac6e38316d21dd54013b685d199047e34008aa0aba79e8c --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 10:32:48,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 10:32:48,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 10:32:48,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 10:32:48,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 10:32:48,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 10:32:48,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 10:32:48,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 10:32:48,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 10:32:48,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 10:32:48,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 10:32:48,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 10:32:48,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 10:32:48,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 10:32:48,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 10:32:48,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 10:32:48,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 10:32:48,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 10:32:48,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 10:32:48,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 10:32:48,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 10:32:48,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 10:32:48,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 10:32:48,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 10:32:48,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 10:32:48,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 10:32:48,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 10:32:48,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 10:32:48,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 10:32:48,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 10:32:48,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 10:32:48,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 10:32:48,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 10:32:48,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 10:32:48,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 10:32:48,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 10:32:48,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 10:32:48,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 10:32:48,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 10:32:48,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 10:32:48,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 10:32:48,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 10:32:48,904 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 10:32:48,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 10:32:48,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 10:32:48,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 10:32:48,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 10:32:48,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 10:32:48,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 10:32:48,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 10:32:48,913 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 10:32:48,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 10:32:48,914 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 10:32:48,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 10:32:48,915 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 10:32:48,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 10:32:48,916 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 10:32:48,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 10:32:48,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 10:32:48,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 10:32:48,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 10:32:48,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:32:48,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 10:32:48,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 10:32:48,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 10:32:48,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 10:32:48,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 10:32:48,918 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 10:32:48,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 10:32:48,919 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 10:32:48,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 10:32:48,919 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 10:32:48,919 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87a050a9ba88ec48bac6e38316d21dd54013b685d199047e34008aa0aba79e8c [2023-02-15 10:32:49,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 10:32:49,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 10:32:49,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 10:32:49,199 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 10:32:49,199 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 10:32:49,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2023-02-15 10:32:50,366 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 10:32:50,544 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 10:32:50,545 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i [2023-02-15 10:32:50,550 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8aecde9/ffdebb8d43e14130bf964eeb36df3aa4/FLAGf2ca95e21 [2023-02-15 10:32:50,561 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8aecde9/ffdebb8d43e14130bf964eeb36df3aa4 [2023-02-15 10:32:50,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 10:32:50,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 10:32:50,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 10:32:50,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 10:32:50,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 10:32:50,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57eb9ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50, skipping insertion in model container [2023-02-15 10:32:50,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 10:32:50,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 10:32:50,696 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i[299,312] [2023-02-15 10:32:50,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:32:50,757 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 10:32:50,769 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.i[299,312] [2023-02-15 10:32:50,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 10:32:50,793 INFO L208 MainTranslator]: Completed translation [2023-02-15 10:32:50,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50 WrapperNode [2023-02-15 10:32:50,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 10:32:50,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 10:32:50,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 10:32:50,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 10:32:50,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,826 INFO L138 Inliner]: procedures = 24, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 99 [2023-02-15 10:32:50,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 10:32:50,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 10:32:50,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 10:32:50,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 10:32:50,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 10:32:50,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 10:32:50,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 10:32:50,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 10:32:50,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (1/1) ... [2023-02-15 10:32:50,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 10:32:50,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 10:32:50,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 10:32:50,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 10:32:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 10:32:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 10:32:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 10:32:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 10:32:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 10:32:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 10:32:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-02-15 10:32:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-02-15 10:32:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 10:32:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 10:32:50,994 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 10:32:50,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 10:32:51,307 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 10:32:51,312 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 10:32:51,316 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 10:32:51,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:32:51 BoogieIcfgContainer [2023-02-15 10:32:51,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 10:32:51,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 10:32:51,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 10:32:51,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 10:32:51,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:32:50" (1/3) ... [2023-02-15 10:32:51,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533741c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:32:51, skipping insertion in model container [2023-02-15 10:32:51,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:32:50" (2/3) ... [2023-02-15 10:32:51,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533741c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:32:51, skipping insertion in model container [2023-02-15 10:32:51,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:32:51" (3/3) ... [2023-02-15 10:32:51,328 INFO L112 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.i [2023-02-15 10:32:51,348 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 10:32:51,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 10:32:51,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 10:32:51,409 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@48dc26be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 10:32:51,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 10:32:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 10:32:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 10:32:51,417 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:51,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:51,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:51,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:51,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1648817827, now seen corresponding path program 1 times [2023-02-15 10:32:51,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:51,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582182793] [2023-02-15 10:32:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:51,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:51,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:51,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:32:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 10:32:51,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:51,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582182793] [2023-02-15 10:32:51,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582182793] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:51,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:51,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 10:32:51,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899635330] [2023-02-15 10:32:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:51,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 10:32:51,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 10:32:51,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 10:32:51,849 INFO L87 Difference]: Start difference. First operand has 33 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 10:32:51,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:51,939 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2023-02-15 10:32:51,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 10:32:51,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-02-15 10:32:51,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:51,947 INFO L225 Difference]: With dead ends: 42 [2023-02-15 10:32:51,947 INFO L226 Difference]: Without dead ends: 29 [2023-02-15 10:32:51,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-02-15 10:32:51,953 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:51,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-15 10:32:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-02-15 10:32:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 10:32:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-15 10:32:51,984 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2023-02-15 10:32:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:51,985 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-15 10:32:51,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 10:32:51,986 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-02-15 10:32:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 10:32:51,987 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:51,987 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:51,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 10:32:51,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:51,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:51,988 INFO L85 PathProgramCache]: Analyzing trace with hash -181602474, now seen corresponding path program 1 times [2023-02-15 10:32:51,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:51,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634239414] [2023-02-15 10:32:51,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:51,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:32:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 10:32:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 10:32:52,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:52,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634239414] [2023-02-15 10:32:52,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634239414] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:52,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:52,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-15 10:32:52,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248686412] [2023-02-15 10:32:52,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:52,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 10:32:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 10:32:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-15 10:32:52,225 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 10:32:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:52,368 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-02-15 10:32:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 10:32:52,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-02-15 10:32:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:52,370 INFO L225 Difference]: With dead ends: 39 [2023-02-15 10:32:52,372 INFO L226 Difference]: Without dead ends: 33 [2023-02-15 10:32:52,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-02-15 10:32:52,377 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:52,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 134 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 10:32:52,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-15 10:32:52,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-15 10:32:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 10:32:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-02-15 10:32:52,391 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 21 [2023-02-15 10:32:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:52,392 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-02-15 10:32:52,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 10:32:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-02-15 10:32:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 10:32:52,401 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:52,401 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:52,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 10:32:52,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:52,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1758754954, now seen corresponding path program 1 times [2023-02-15 10:32:52,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:52,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931539158] [2023-02-15 10:32:52,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:52,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:32:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 10:32:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 10:32:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-15 10:32:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:52,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931539158] [2023-02-15 10:32:52,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931539158] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:52,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:52,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 10:32:52,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031195542] [2023-02-15 10:32:52,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:52,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 10:32:52,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 10:32:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 10:32:52,692 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 10:32:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:52,769 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2023-02-15 10:32:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 10:32:52,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2023-02-15 10:32:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:52,773 INFO L225 Difference]: With dead ends: 42 [2023-02-15 10:32:52,773 INFO L226 Difference]: Without dead ends: 33 [2023-02-15 10:32:52,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-02-15 10:32:52,776 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:52,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 166 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-15 10:32:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-15 10:32:52,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 10:32:52,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2023-02-15 10:32:52,788 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 32 [2023-02-15 10:32:52,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:52,789 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2023-02-15 10:32:52,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 10:32:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-02-15 10:32:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 10:32:52,790 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 10:32:52,790 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 10:32:52,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 10:32:52,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 10:32:52,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 10:32:52,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1338195985, now seen corresponding path program 1 times [2023-02-15 10:32:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 10:32:52,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985117994] [2023-02-15 10:32:52,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 10:32:52,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 10:32:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 10:32:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 10:32:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 10:32:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 10:32:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 10:32:52,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 10:32:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985117994] [2023-02-15 10:32:52,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985117994] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 10:32:52,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 10:32:52,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 10:32:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640604189] [2023-02-15 10:32:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 10:32:52,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 10:32:52,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 10:32:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 10:32:52,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:32:52,922 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 10:32:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 10:32:52,943 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-02-15 10:32:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 10:32:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2023-02-15 10:32:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 10:32:52,945 INFO L225 Difference]: With dead ends: 33 [2023-02-15 10:32:52,945 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 10:32:52,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 10:32:52,951 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 10:32:52,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 10:32:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 10:32:52,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 10:32:52,954 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) [2023-02-15 10:32:52,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 10:32:52,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-02-15 10:32:52,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 10:32:52,955 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 10:32:52,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 10:32:52,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 10:32:52,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 10:32:52,958 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 10:32:52,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 10:32:52,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 10:32:53,017 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 10:32:53,018 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line 48) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2023-02-15 10:32:53,018 INFO L899 garLoopResultBuilder]: For program point kzallocEXIT(line 48) no Hoare annotation was computed. [2023-02-15 10:32:53,020 INFO L899 garLoopResultBuilder]: For program point kzallocFINAL(line 48) no Hoare annotation was computed. [2023-02-15 10:32:53,020 INFO L895 garLoopResultBuilder]: At program point ibmphp_init_devno_returnLabel#1(lines 67 70) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-02-15 10:32:53,020 INFO L895 garLoopResultBuilder]: At program point fillslotinfo_returnLabel#1(lines 62 65) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-02-15 10:32:53,021 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) [2023-02-15 10:32:53,021 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-02-15 10:32:53,021 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 139) no Hoare annotation was computed. [2023-02-15 10:32:53,021 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 10:32:53,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 10:32:53,022 INFO L895 garLoopResultBuilder]: At program point ebda_rsrc_controller_returnLabel#1(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-02-15 10:32:53,024 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0))) [2023-02-15 10:32:53,026 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed. [2023-02-15 10:32:53,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2023-02-15 10:32:53,027 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2023-02-15 10:32:53,027 INFO L899 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2023-02-15 10:32:53,027 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-15 10:32:53,028 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 107) no Hoare annotation was computed. [2023-02-15 10:32:53,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 10:32:53,028 INFO L895 garLoopResultBuilder]: At program point L128(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-02-15 10:32:53,028 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 90) no Hoare annotation was computed. [2023-02-15 10:32:53,030 INFO L895 garLoopResultBuilder]: At program point ibmphp_find_same_bus_num_returnLabel#1(lines 56 58) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0))) [2023-02-15 10:32:53,030 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2023-02-15 10:32:53,030 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2023-02-15 10:32:53,030 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 10:32:53,031 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 138) no Hoare annotation was computed. [2023-02-15 10:32:53,031 INFO L895 garLoopResultBuilder]: At program point ebda_rsrc_controller_error#1(lines 72 133) the Hoare annotation is: (and (not (= ~tmp_slot~0.base 0)) (not (= |ULTIMATE.start_ebda_rsrc_controller_~hp_slot_ptr~0#1.base| 0)) (not (= |ULTIMATE.start_ibmphp_find_same_bus_num_#res#1.base| 0)) (= ~used_tmp_slot~0 1)) [2023-02-15 10:32:53,031 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2023-02-15 10:32:53,031 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2023-02-15 10:32:53,031 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-02-15 10:32:53,031 INFO L899 garLoopResultBuilder]: For program point L138(line 138) no Hoare annotation was computed. [2023-02-15 10:32:53,032 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 9) no Hoare annotation was computed. [2023-02-15 10:32:53,034 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-15 10:32:53,036 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 10:32:53,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:32:53 BoogieIcfgContainer [2023-02-15 10:32:53,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 10:32:53,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 10:32:53,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 10:32:53,059 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 10:32:53,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:32:51" (3/4) ... [2023-02-15 10:32:53,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 10:32:53,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2023-02-15 10:32:53,073 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-02-15 10:32:53,074 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-02-15 10:32:53,074 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 10:32:53,074 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 10:32:53,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2023-02-15 10:32:53,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2023-02-15 10:32:53,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0) [2023-02-15 10:32:53,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2023-02-15 10:32:53,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2023-02-15 10:32:53,104 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 [2023-02-15 10:32:53,121 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 10:32:53,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 10:32:53,122 INFO L158 Benchmark]: Toolchain (without parser) took 2557.32ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 72.7MB in the beginning and 69.4MB in the end (delta: 3.3MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,122 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 10:32:53,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.10ms. Allocated memory is still 115.3MB. Free memory was 72.4MB in the beginning and 61.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.39ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 59.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,123 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 115.3MB. Free memory was 59.5MB in the beginning and 58.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,123 INFO L158 Benchmark]: RCFGBuilder took 468.61ms. Allocated memory is still 115.3MB. Free memory was 58.0MB in the beginning and 84.4MB in the end (delta: -26.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,123 INFO L158 Benchmark]: TraceAbstraction took 1737.59ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 83.6MB in the beginning and 73.0MB in the end (delta: 10.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,124 INFO L158 Benchmark]: Witness Printer took 62.45ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 69.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 10:32:53,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 77.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.10ms. Allocated memory is still 115.3MB. Free memory was 72.4MB in the beginning and 61.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.39ms. Allocated memory is still 115.3MB. Free memory was 61.4MB in the beginning and 59.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 115.3MB. Free memory was 59.5MB in the beginning and 58.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.61ms. Allocated memory is still 115.3MB. Free memory was 58.0MB in the beginning and 84.4MB in the end (delta: -26.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1737.59ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 83.6MB in the beginning and 73.0MB in the end (delta: 10.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 62.45ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 69.4MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 519 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 402 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 117 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 117 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 28/28 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: 67]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((!(tmp_slot == 0) && !(hp_slot_ptr == 0)) && !(\result == 0)) && used_tmp_slot == 1 RESULT: Ultimate proved your program to be correct! [2023-02-15 10:32:53,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE