./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/gsv2008.c.i.p+cfa-reducer.c -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 ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 15:19:59,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 15:19:59,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 15:19:59,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 15:19:59,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 15:19:59,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 15:19:59,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 15:19:59,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 15:19:59,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 15:19:59,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 15:19:59,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 15:19:59,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 15:19:59,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 15:19:59,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 15:19:59,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 15:19:59,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 15:19:59,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 15:19:59,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 15:19:59,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 15:19:59,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 15:19:59,231 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 15:19:59,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 15:19:59,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 15:19:59,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 15:19:59,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 15:19:59,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 15:19:59,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 15:19:59,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 15:19:59,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 15:19:59,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 15:19:59,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 15:19:59,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 15:19:59,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 15:19:59,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 15:19:59,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 15:19:59,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 15:19:59,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 15:19:59,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 15:19:59,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 15:19:59,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 15:19:59,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 15:19:59,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 15:19:59,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 15:19:59,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 15:19:59,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 15:19:59,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 15:19:59,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 15:19:59,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 15:19:59,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 15:19:59,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 15:19:59,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 15:19:59,287 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 15:19:59,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 15:19:59,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 15:19:59,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 15:19:59,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 15:19:59,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 15:19:59,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 15:19:59,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 15:19:59,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 15:19:59,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 15:19:59,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 15:19:59,290 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 15:19:59,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 15:19:59,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 15:19:59,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 15:19:59,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 15:19:59,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:19:59,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 15:19:59,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 15:19:59,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 15:19:59,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 15:19:59,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 15:19:59,293 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 15:19:59,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 15:19:59,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 15:19:59,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a [2022-07-22 15:19:59,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 15:19:59,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 15:19:59,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 15:19:59,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 15:19:59,538 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 15:19:59,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-07-22 15:19:59,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712644270/9cf42ad1734045a6b0b181769ae14746/FLAG23dcd6b75 [2022-07-22 15:20:00,081 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 15:20:00,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-07-22 15:20:00,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712644270/9cf42ad1734045a6b0b181769ae14746/FLAG23dcd6b75 [2022-07-22 15:20:00,471 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/712644270/9cf42ad1734045a6b0b181769ae14746 [2022-07-22 15:20:00,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 15:20:00,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 15:20:00,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 15:20:00,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 15:20:00,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 15:20:00,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d7e8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00, skipping insertion in model container [2022-07-22 15:20:00,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 15:20:00,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 15:20:00,633 WARN L230 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/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-07-22 15:20:00,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:20:00,643 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 15:20:00,655 WARN L230 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/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-07-22 15:20:00,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:20:00,667 INFO L208 MainTranslator]: Completed translation [2022-07-22 15:20:00,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00 WrapperNode [2022-07-22 15:20:00,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 15:20:00,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 15:20:00,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 15:20:00,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 15:20:00,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,706 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-07-22 15:20:00,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 15:20:00,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 15:20:00,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 15:20:00,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 15:20:00,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 15:20:00,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 15:20:00,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 15:20:00,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 15:20:00,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (1/1) ... [2022-07-22 15:20:00,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:20:00,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:20:00,744 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) [2022-07-22 15:20:00,752 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 [2022-07-22 15:20:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 15:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 15:20:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 15:20:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 15:20:00,832 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 15:20:00,834 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 15:20:00,914 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 15:20:00,918 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 15:20:00,919 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 15:20:00,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:00 BoogieIcfgContainer [2022-07-22 15:20:00,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 15:20:00,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 15:20:00,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 15:20:00,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 15:20:00,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:20:00" (1/3) ... [2022-07-22 15:20:00,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0cc645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:20:00, skipping insertion in model container [2022-07-22 15:20:00,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:00" (2/3) ... [2022-07-22 15:20:00,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0cc645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:20:00, skipping insertion in model container [2022-07-22 15:20:00,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:00" (3/3) ... [2022-07-22 15:20:00,930 INFO L111 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2022-07-22 15:20:00,946 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 15:20:00,946 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 15:20:00,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 15:20:00,995 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f67453b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@242b9fb4 [2022-07-22 15:20:00,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 15:20:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 15:20:01,017 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:20:01,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:20:01,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:20:01,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:20:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2022-07-22 15:20:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:20:01,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131324492] [2022-07-22 15:20:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:01,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:20:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:01,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:20:01,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131324492] [2022-07-22 15:20:01,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131324492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:20:01,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:20:01,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 15:20:01,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4114275] [2022-07-22 15:20:01,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:20:01,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 15:20:01,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:20:01,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 15:20:01,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 15:20:01,236 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 15:20:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:20:01,272 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-07-22 15:20:01,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 15:20:01,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-07-22 15:20:01,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:20:01,280 INFO L225 Difference]: With dead ends: 21 [2022-07-22 15:20:01,281 INFO L226 Difference]: Without dead ends: 9 [2022-07-22 15:20:01,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 15:20:01,286 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:20:01,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:20:01,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-07-22 15:20:01,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-07-22 15:20:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-07-22 15:20:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-07-22 15:20:01,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-07-22 15:20:01,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:20:01,313 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-07-22 15:20:01,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 15:20:01,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-07-22 15:20:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 15:20:01,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:20:01,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:20:01,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 15:20:01,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:20:01,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:20:01,316 INFO L85 PathProgramCache]: Analyzing trace with hash 179533835, now seen corresponding path program 1 times [2022-07-22 15:20:01,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:20:01,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601083162] [2022-07-22 15:20:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:01,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:20:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:01,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:20:01,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601083162] [2022-07-22 15:20:01,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601083162] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:20:01,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214311913] [2022-07-22 15:20:01,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:01,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:20:01,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:20:01,506 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) [2022-07-22 15:20:01,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 15:20:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:01,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 15:20:01,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:20:01,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:01,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:20:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214311913] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:20:01,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:20:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-07-22 15:20:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222710117] [2022-07-22 15:20:01,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:20:01,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 15:20:01,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:20:01,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 15:20:01,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 15:20:01,748 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2022-07-22 15:20:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:20:01,818 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-07-22 15:20:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 15:20:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 [2022-07-22 15:20:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:20:01,820 INFO L225 Difference]: With dead ends: 11 [2022-07-22 15:20:01,820 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 15:20:01,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-22 15:20:01,823 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:20:01,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:20:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 15:20:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 15:20:01,827 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) [2022-07-22 15:20:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 15:20:01,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-07-22 15:20:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:20:01,828 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 15:20:01,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2022-07-22 15:20:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 15:20:01,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 15:20:01,832 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 15:20:01,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 15:20:02,039 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 [2022-07-22 15:20:02,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 15:20:02,059 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 15:20:02,059 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 58) no Hoare annotation was computed. [2022-07-22 15:20:02,063 INFO L902 garLoopResultBuilder]: At program point L54(lines 13 60) the Hoare annotation is: true [2022-07-22 15:20:02,063 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 59) no Hoare annotation was computed. [2022-07-22 15:20:02,063 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-07-22 15:20:02,064 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 55) no Hoare annotation was computed. [2022-07-22 15:20:02,064 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 15:20:02,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 15:20:02,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 15:20:02,064 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2022-07-22 15:20:02,065 INFO L895 garLoopResultBuilder]: At program point L37(lines 30 58) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~main__y~0#1|) (< |ULTIMATE.start_main_~main__x~0#1| 0)) [2022-07-22 15:20:02,071 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 15:20:02,073 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 15:20:02,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:20:02 BoogieIcfgContainer [2022-07-22 15:20:02,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 15:20:02,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 15:20:02,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 15:20:02,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 15:20:02,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:00" (3/4) ... [2022-07-22 15:20:02,094 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 15:20:02,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-22 15:20:02,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 15:20:02,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 15:20:02,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 15:20:02,132 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 15:20:02,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 15:20:02,133 INFO L158 Benchmark]: Toolchain (without parser) took 1659.31ms. Allocated memory is still 115.3MB. Free memory was 88.9MB in the beginning and 72.7MB in the end (delta: 16.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,133 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:20:02,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.79ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 90.9MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.14ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,134 INFO L158 Benchmark]: Boogie Preprocessor took 11.05ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 88.5MB in the end (delta: 724.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:20:02,134 INFO L158 Benchmark]: RCFGBuilder took 202.28ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 79.7MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,135 INFO L158 Benchmark]: TraceAbstraction took 1167.21ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 74.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,135 INFO L158 Benchmark]: Witness Printer took 41.64ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:02,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.79ms. Allocated memory is still 115.3MB. Free memory was 88.7MB in the beginning and 90.9MB in the end (delta: -2.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.14ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.05ms. Allocated memory is still 115.3MB. Free memory was 89.3MB in the beginning and 88.5MB in the end (delta: 724.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 202.28ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 79.7MB in the end (delta: 8.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1167.21ms. Allocated memory is still 115.3MB. Free memory was 79.2MB in the beginning and 74.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Witness Printer took 41.64ms. Allocated memory is still 115.3MB. Free memory was 74.8MB in the beginning and 72.7MB 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: 48]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 16 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 4 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 < main__y || main__x < 0 RESULT: Ultimate proved your program to be correct! [2022-07-22 15:20:02,171 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