./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/loop-lit/jm2006_variant.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 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 06:33:46,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 06:33:46,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 06:33:46,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 06:33:46,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 06:33:46,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 06:33:46,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 06:33:46,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 06:33:46,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 06:33:46,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 06:33:46,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 06:33:46,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 06:33:46,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 06:33:46,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 06:33:46,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 06:33:46,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 06:33:46,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 06:33:46,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 06:33:46,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 06:33:46,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 06:33:46,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 06:33:46,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 06:33:46,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 06:33:46,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 06:33:46,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 06:33:46,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 06:33:46,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 06:33:46,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 06:33:46,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 06:33:46,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 06:33:46,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 06:33:46,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 06:33:46,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 06:33:46,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 06:33:46,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 06:33:46,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 06:33:46,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 06:33:46,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 06:33:46,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 06:33:46,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 06:33:46,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 06:33:46,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 06:33:46,203 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 06:33:46,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 06:33:46,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 06:33:46,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 06:33:46,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 06:33:46,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 06:33:46,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 06:33:46,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 06:33:46,205 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 06:33:46,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 06:33:46,205 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 06:33:46,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 06:33:46,207 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 06:33:46,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 06:33:46,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 06:33:46,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 06:33:46,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 06:33:46,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:33:46,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 06:33:46,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 06:33:46,209 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 06:33:46,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cc4e6594048669dc8576432b007a54cfaf2cb918409d0a11b256ce036aec976 [2023-02-17 06:33:46,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 06:33:46,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 06:33:46,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 06:33:46,472 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 06:33:46,472 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 06:33:46,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/jm2006_variant.i [2023-02-17 06:33:47,588 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 06:33:47,824 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 06:33:47,825 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/jm2006_variant.i [2023-02-17 06:33:47,830 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71475a923/68bc2daeadc54fdfb49f37ea6746e19f/FLAG11d4a3c78 [2023-02-17 06:33:47,846 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71475a923/68bc2daeadc54fdfb49f37ea6746e19f [2023-02-17 06:33:47,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 06:33:47,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 06:33:47,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 06:33:47,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 06:33:47,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 06:33:47,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:33:47" (1/1) ... [2023-02-17 06:33:47,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e80854a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:47, skipping insertion in model container [2023-02-17 06:33:47,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:33:47" (1/1) ... [2023-02-17 06:33:47,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 06:33:47,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 06:33:48,027 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/loop-lit/jm2006_variant.i[895,908] [2023-02-17 06:33:48,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:33:48,046 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 06:33:48,055 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/loop-lit/jm2006_variant.i[895,908] [2023-02-17 06:33:48,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:33:48,070 INFO L208 MainTranslator]: Completed translation [2023-02-17 06:33:48,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48 WrapperNode [2023-02-17 06:33:48,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 06:33:48,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 06:33:48,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 06:33:48,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 06:33:48,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,093 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2023-02-17 06:33:48,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 06:33:48,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 06:33:48,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 06:33:48,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 06:33:48,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,107 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 06:33:48,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 06:33:48,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 06:33:48,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 06:33:48,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (1/1) ... [2023-02-17 06:33:48,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:33:48,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:33:48,141 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) [2023-02-17 06:33:48,150 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 [2023-02-17 06:33:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 06:33:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 06:33:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 06:33:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 06:33:48,224 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 06:33:48,226 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 06:33:48,327 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 06:33:48,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 06:33:48,345 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 06:33:48,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:33:48 BoogieIcfgContainer [2023-02-17 06:33:48,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 06:33:48,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 06:33:48,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 06:33:48,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 06:33:48,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:33:47" (1/3) ... [2023-02-17 06:33:48,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd602a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:33:48, skipping insertion in model container [2023-02-17 06:33:48,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:33:48" (2/3) ... [2023-02-17 06:33:48,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd602a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:33:48, skipping insertion in model container [2023-02-17 06:33:48,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:33:48" (3/3) ... [2023-02-17 06:33:48,353 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2023-02-17 06:33:48,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 06:33:48,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 06:33:48,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 06:33:48,424 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;@44dfff5c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 06:33:48,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 06:33:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 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) [2023-02-17 06:33:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 06:33:48,436 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:33:48,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:33:48,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:33:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:33:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 179632146, now seen corresponding path program 1 times [2023-02-17 06:33:48,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:33:48,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451813546] [2023-02-17 06:33:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:33:48,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:33:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:33:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:33:48,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451813546] [2023-02-17 06:33:48,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451813546] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:33:48,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:33:48,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 06:33:48,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908458339] [2023-02-17 06:33:48,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:33:48,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 06:33:48,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:33:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 06:33:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 06:33:48,799 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:33:48,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:33:48,870 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2023-02-17 06:33:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 06:33:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 06:33:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:33:48,878 INFO L225 Difference]: With dead ends: 39 [2023-02-17 06:33:48,879 INFO L226 Difference]: Without dead ends: 10 [2023-02-17 06:33:48,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-17 06:33:48,884 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:33:48,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 52 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:33:48,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-17 06:33:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-17 06:33:48,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2023-02-17 06:33:48,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-17 06:33:48,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2023-02-17 06:33:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:33:48,917 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-17 06:33:48,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:33:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-17 06:33:48,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 06:33:48,919 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:33:48,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:33:48,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 06:33:48,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:33:48,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:33:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1275235031, now seen corresponding path program 1 times [2023-02-17 06:33:48,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:33:48,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814097764] [2023-02-17 06:33:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:33:48,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:33:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:33:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:49,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:33:49,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814097764] [2023-02-17 06:33:49,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814097764] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:33:49,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076994857] [2023-02-17 06:33:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:33:49,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:33:49,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:33:49,131 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) [2023-02-17 06:33:49,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 06:33:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:33:49,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-17 06:33:49,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:33:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:49,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:33:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:49,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076994857] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:33:49,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:33:49,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-17 06:33:49,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6796836] [2023-02-17 06:33:49,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:33:49,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-17 06:33:49,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:33:49,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-17 06:33:49,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-02-17 06:33:49,345 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:33:49,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:33:49,463 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2023-02-17 06:33:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 06:33:49,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-17 06:33:49,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:33:49,464 INFO L225 Difference]: With dead ends: 20 [2023-02-17 06:33:49,464 INFO L226 Difference]: Without dead ends: 13 [2023-02-17 06:33:49,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-02-17 06:33:49,466 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 06:33:49,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 27 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 06:33:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-17 06:33:49,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-17 06:33:49,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2023-02-17 06:33:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-17 06:33:49,473 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 9 [2023-02-17 06:33:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:33:49,477 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-17 06:33:49,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:33:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-17 06:33:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 06:33:49,478 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:33:49,479 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:33:49,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 06:33:49,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:33:49,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:33:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:33:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1159331502, now seen corresponding path program 2 times [2023-02-17 06:33:49,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:33:49,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283425563] [2023-02-17 06:33:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:33:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:33:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:33:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 06:33:49,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:33:49,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283425563] [2023-02-17 06:33:49,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283425563] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:33:49,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573357129] [2023-02-17 06:33:49,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 06:33:49,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:33:49,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:33:49,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:33:49,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 06:33:49,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 06:33:49,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:33:49,990 WARN L261 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-17 06:33:49,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:33:50,108 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:50,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:33:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:33:50,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573357129] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:33:50,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:33:50,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2023-02-17 06:33:50,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55187785] [2023-02-17 06:33:50,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:33:50,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-17 06:33:50,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:33:50,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-17 06:33:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2023-02-17 06:33:50,208 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 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) [2023-02-17 06:33:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:33:50,350 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2023-02-17 06:33:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 06:33:50,350 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-17 06:33:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:33:50,350 INFO L225 Difference]: With dead ends: 16 [2023-02-17 06:33:50,350 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 06:33:50,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2023-02-17 06:33:50,352 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:33:50,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 20 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:33:50,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 06:33:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 06:33:50,353 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) [2023-02-17 06:33:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 06:33:50,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-17 06:33:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:33:50,354 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 06:33:50,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 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) [2023-02-17 06:33:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 06:33:50,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 06:33:50,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 06:33:50,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 06:33:50,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-17 06:33:50,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 06:33:50,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 06:33:50,570 INFO L895 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse18 (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse17 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~j~0#1|))) (let ((.cse6 (- |ULTIMATE.start_main_~z~0#1|)) (.cse4 (= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse5 (not (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|))) (.cse11 (+ (+ |ULTIMATE.start_main_~j~0#1| (- 4)) (- 2))) (.cse13 (+ 1 2)) (.cse8 (+ |ULTIMATE.start_main_~i~0#1| (- 1))) (.cse2 (+ |ULTIMATE.start_main_~z~0#1| (- 1))) (.cse7 (+ |ULTIMATE.start_main_~x~0#1| 1)) (.cse3 (+ 1 0)) (.cse9 (+ |ULTIMATE.start_main_~y~0#1| 2)) (.cse1 (<= .cse18 .cse17)) (.cse10 (<= .cse17 .cse18))) (or (let ((.cse0 (<= (+ |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1| 1) 0))) (and (or .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~y~0#1|) 0)) (= .cse2 .cse3) (or (not (= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 1)))) .cse4 .cse5 (= (+ |ULTIMATE.start_main_~y~0#1| (- 2)) (+ (- 1) .cse6))) (= .cse7 .cse8) (= (+ .cse9 2) |ULTIMATE.start_main_~j~0#1|) (or (not .cse0) .cse10))) (let ((.cse12 (+ |ULTIMATE.start_main_~i~0#1| (- 3)))) (and (= |ULTIMATE.start_main_~y~0#1| (+ .cse11 (- 2))) (= |ULTIMATE.start_main_~x~0#1| (+ .cse12 (- 1))) (= .cse2 .cse13) (not (= 0 .cse12)))) (and (or (= |ULTIMATE.start_main_~y~0#1| .cse6) (not .cse4) .cse5) (= (+ .cse7 1) .cse8) (= |ULTIMATE.start_main_~y~0#1| .cse11) (= |ULTIMATE.start_main_~z~0#1| .cse13)) (and (not (= 0 .cse7)) (= |ULTIMATE.start_main_~x~0#1| .cse8) (= .cse2 0) (= .cse7 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~z~0#1| .cse3) (= .cse9 |ULTIMATE.start_main_~j~0#1|)) (and .cse1 .cse10) (let ((.cse15 (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse14 (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~i~0#1|)) (.cse16 (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1| 1) 0))) (and (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~j~0#1|) (or (<= .cse14 .cse15) (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 0) .cse16) (or (<= .cse15 .cse14) (not .cse16)) (= |ULTIMATE.start_main_~z~0#1| 0)))))) [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 24 42) the Hoare annotation is: true [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 40) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 06:33:50,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 06:33:50,572 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-02-17 06:33:50,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-02-17 06:33:50,572 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-02-17 06:33:50,572 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (let ((.cse5 (not (= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|)))) (or (let ((.cse4 (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1| 1) 0))) (let ((.cse2 (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse1 (not .cse4)) (.cse0 (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= (+ |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 0))) (and (or (<= |ULTIMATE.start_main_~j~0#1| .cse0) .cse1) (or (<= .cse0 .cse2) .cse3 .cse4) (or (<= .cse2 .cse0) .cse1) (= |ULTIMATE.start_main_~z~0#1| 0) .cse5 (or (<= .cse0 |ULTIMATE.start_main_~j~0#1|) .cse3 .cse4)))) .cse5)) [2023-02-17 06:33:50,580 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-02-17 06:33:50,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 06:33:50,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 06:33:50 BoogieIcfgContainer [2023-02-17 06:33:50,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 06:33:50,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 06:33:50,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 06:33:50,614 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 06:33:50,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:33:48" (3/4) ... [2023-02-17 06:33:50,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 06:33:50,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-17 06:33:50,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-17 06:33:50,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 06:33:50,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 06:33:50,661 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 06:33:50,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 06:33:50,662 INFO L158 Benchmark]: Toolchain (without parser) took 2810.69ms. Allocated memory was 148.9MB in the beginning and 201.3MB in the end (delta: 52.4MB). Free memory was 117.6MB in the beginning and 161.7MB in the end (delta: -44.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,662 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory was 63.4MB in the beginning and 63.2MB in the end (delta: 190.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.40ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 107.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.27ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:33:50,663 INFO L158 Benchmark]: Boogie Preprocessor took 17.62ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,663 INFO L158 Benchmark]: RCFGBuilder took 234.19ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 95.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,663 INFO L158 Benchmark]: TraceAbstraction took 2264.92ms. Allocated memory was 148.9MB in the beginning and 201.3MB in the end (delta: 52.4MB). Free memory was 94.6MB in the beginning and 163.8MB in the end (delta: -69.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:33:50,664 INFO L158 Benchmark]: Witness Printer took 47.15ms. Allocated memory is still 201.3MB. Free memory was 163.8MB in the beginning and 161.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:33:50,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory was 63.4MB in the beginning and 63.2MB in the end (delta: 190.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.40ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 107.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.27ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.62ms. Allocated memory is still 148.9MB. Free memory was 105.7MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.19ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 95.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2264.92ms. Allocated memory was 148.9MB in the beginning and 201.3MB in the end (delta: 52.4MB). Free memory was 94.6MB in the beginning and 163.8MB in the end (delta: -69.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.15ms. Allocated memory is still 201.3MB. Free memory was 163.8MB in the beginning and 161.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 66 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 27 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 317 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 714 SizeOfPredicates, 18 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 3/33 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: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((j <= y + i || !(y + z + 1 <= 0)) && ((y + i <= j + x || y + z <= 0) || y + z + 1 <= 0)) && (j + x <= y + i || !(y + z + 1 <= 0))) && z == 0) && !(0 == cond)) && ((y + i <= j || y + z <= 0) || y + z + 1 <= 0)) || !(0 == cond) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((((((((((z + y + 1 <= 0 || y + i + z <= x + j) || z + y <= 0) && z + -1 == 1 + 0) && (((!(0 == x + -1) || 0 == x) || !(i == j)) || y + -2 == -1 + -z)) && x + 1 == i + -1) && y + 2 + 2 == j) && (!(z + y + 1 <= 0) || x + j <= y + i + z)) || (((y == j + -4 + -2 + -2 && x == i + -3 + -1) && z + -1 == 1 + 2) && !(0 == i + -3))) || (((((y == -z || !(0 == x)) || !(i == j)) && x + 1 + 1 == i + -1) && y == j + -4 + -2) && z == 1 + 2)) || (((((!(0 == x + 1) && x == i + -1) && z + -1 == 0) && x + 1 == i) && z == 1 + 0) && y + 2 == j)) || (y + i + z <= x + j && x + j <= y + i + z)) || ((((x == i && y == j) && ((y + i <= j + x || y + z <= 0) || y + z + 1 <= 0)) && (j + x <= y + i || !(y + z + 1 <= 0))) && z == 0) RESULT: Ultimate proved your program to be correct! [2023-02-17 06:33:50,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE