./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9661ac56b9d6946d9444c626fe505dda6865d149 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9661ac56b9d6946d9444c626fe505dda6865d149 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-11 21:15:35,223 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 21:15:35,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 21:15:35,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 21:15:35,237 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 21:15:35,238 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 21:15:35,239 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 21:15:35,241 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 21:15:35,243 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 21:15:35,244 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 21:15:35,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-11 21:15:35,245 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-11 21:15:35,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-11 21:15:35,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-11 21:15:35,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-11 21:15:35,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-11 21:15:35,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-11 21:15:35,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-11 21:15:35,254 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-11 21:15:35,256 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-11 21:15:35,257 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-11 21:15:35,258 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-11 21:15:35,261 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-11 21:15:35,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-11 21:15:35,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-11 21:15:35,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-11 21:15:35,263 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-11 21:15:35,264 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-11 21:15:35,265 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-11 21:15:35,266 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-11 21:15:35,267 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-11 21:15:35,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-11 21:15:35,268 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-11 21:15:35,268 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-11 21:15:35,270 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-11 21:15:35,271 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-11 21:15:35,271 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-11 21:15:35,299 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 21:15:35,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 21:15:35,301 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 21:15:35,301 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 21:15:35,302 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 21:15:35,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 21:15:35,302 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 21:15:35,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-11 21:15:35,303 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 21:15:35,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 21:15:35,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 21:15:35,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 21:15:35,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 21:15:35,304 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 21:15:35,305 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 21:15:35,305 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-11 21:15:35,305 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 21:15:35,305 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 21:15:35,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 21:15:35,306 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-11 21:15:35,306 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 21:15:35,306 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-11 21:15:35,306 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-11 21:15:35,307 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 9661ac56b9d6946d9444c626fe505dda6865d149 [2019-01-11 21:15:35,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 21:15:35,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 21:15:35,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 21:15:35,391 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-11 21:15:35,391 INFO L276 PluginConnector]: CDTParser initialized [2019-01-11 21:15:35,392 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:35,442 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cebdaaf/a163eb43c69f4c3d9998eab24108e2cb/FLAGf540142a4 [2019-01-11 21:15:35,893 INFO L307 CDTParser]: Found 1 translation units. [2019-01-11 21:15:35,896 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:35,911 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cebdaaf/a163eb43c69f4c3d9998eab24108e2cb/FLAGf540142a4 [2019-01-11 21:15:36,217 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8cebdaaf/a163eb43c69f4c3d9998eab24108e2cb [2019-01-11 21:15:36,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 21:15:36,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-11 21:15:36,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-11 21:15:36,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-11 21:15:36,227 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-11 21:15:36,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8b5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36, skipping insertion in model container [2019-01-11 21:15:36,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-11 21:15:36,280 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-11 21:15:36,554 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:15:36,558 INFO L191 MainTranslator]: Completed pre-run [2019-01-11 21:15:36,616 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:15:36,634 INFO L195 MainTranslator]: Completed translation [2019-01-11 21:15:36,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36 WrapperNode [2019-01-11 21:15:36,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-11 21:15:36,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 21:15:36,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 21:15:36,635 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 21:15:36,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 21:15:36,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 21:15:36,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 21:15:36,763 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 21:15:36,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... [2019-01-11 21:15:36,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 21:15:36,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 21:15:36,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 21:15:36,801 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 21:15:36,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-11 21:15:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-11 21:15:36,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-11 21:15:36,995 WARN L745 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-11 21:15:37,935 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2019-01-11 21:15:37,935 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2019-01-11 21:15:37,936 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-11 21:15:37,936 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-11 21:15:37,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:37 BoogieIcfgContainer [2019-01-11 21:15:37,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 21:15:37,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-11 21:15:37,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-11 21:15:37,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-11 21:15:37,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 09:15:36" (1/3) ... [2019-01-11 21:15:37,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e05d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:15:37, skipping insertion in model container [2019-01-11 21:15:37,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:36" (2/3) ... [2019-01-11 21:15:37,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e05d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:15:37, skipping insertion in model container [2019-01-11 21:15:37,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:37" (3/3) ... [2019-01-11 21:15:37,947 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:37,957 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-11 21:15:37,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-11 21:15:37,981 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-11 21:15:38,011 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-11 21:15:38,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-11 21:15:38,012 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-11 21:15:38,012 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-11 21:15:38,012 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-11 21:15:38,012 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-11 21:15:38,012 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-11 21:15:38,013 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-11 21:15:38,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-11 21:15:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-01-11 21:15:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-11 21:15:38,036 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:38,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:38,039 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:38,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:38,045 INFO L82 PathProgramCache]: Analyzing trace with hash 511659491, now seen corresponding path program 1 times [2019-01-11 21:15:38,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:15:38,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:15:38,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:38,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:38,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:38,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:15:38,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:38,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-11 21:15:38,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:38,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:38,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:38,329 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2019-01-11 21:15:38,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:38,598 INFO L93 Difference]: Finished difference Result 246 states and 422 transitions. [2019-01-11 21:15:38,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:38,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-01-11 21:15:38,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:38,618 INFO L225 Difference]: With dead ends: 246 [2019-01-11 21:15:38,618 INFO L226 Difference]: Without dead ends: 112 [2019-01-11 21:15:38,623 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:38,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2019-01-11 21:15:38,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2019-01-11 21:15:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2019-01-11 21:15:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 170 transitions. [2019-01-11 21:15:38,689 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 170 transitions. Word has length 24 [2019-01-11 21:15:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:38,690 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 170 transitions. [2019-01-11 21:15:38,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 170 transitions. [2019-01-11 21:15:38,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-01-11 21:15:38,694 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:38,695 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:38,695 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:38,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:38,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1971493731, now seen corresponding path program 1 times [2019-01-11 21:15:38,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:15:38,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:15:38,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:38,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:38,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:15:38,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:38,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:38,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:38,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:38,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:38,861 INFO L87 Difference]: Start difference. First operand 112 states and 170 transitions. Second operand 3 states. [2019-01-11 21:15:39,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:39,475 INFO L93 Difference]: Finished difference Result 232 states and 355 transitions. [2019-01-11 21:15:39,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:39,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-01-11 21:15:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:39,478 INFO L225 Difference]: With dead ends: 232 [2019-01-11 21:15:39,478 INFO L226 Difference]: Without dead ends: 130 [2019-01-11 21:15:39,480 INFO L631 BasicCegarLoop]: 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 [2019-01-11 21:15:39,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-01-11 21:15:39,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2019-01-11 21:15:39,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-01-11 21:15:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2019-01-11 21:15:39,492 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 36 [2019-01-11 21:15:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:39,493 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 190 transitions. [2019-01-11 21:15:39,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 190 transitions. [2019-01-11 21:15:39,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-01-11 21:15:39,495 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:39,495 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:39,495 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:39,496 INFO L82 PathProgramCache]: Analyzing trace with hash 441356492, now seen corresponding path program 1 times [2019-01-11 21:15:39,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:15:39,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:15:39,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:39,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:39,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 21:15:39,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:39,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:39,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:39,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:39,605 INFO L87 Difference]: Start difference. First operand 127 states and 190 transitions. Second operand 3 states. [2019-01-11 21:15:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:39,846 INFO L93 Difference]: Finished difference Result 265 states and 401 transitions. [2019-01-11 21:15:39,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:39,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-01-11 21:15:39,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:39,850 INFO L225 Difference]: With dead ends: 265 [2019-01-11 21:15:39,850 INFO L226 Difference]: Without dead ends: 148 [2019-01-11 21:15:39,851 INFO L631 BasicCegarLoop]: 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 [2019-01-11 21:15:39,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-01-11 21:15:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2019-01-11 21:15:39,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-01-11 21:15:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 212 transitions. [2019-01-11 21:15:39,864 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 212 transitions. Word has length 50 [2019-01-11 21:15:39,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:39,864 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 212 transitions. [2019-01-11 21:15:39,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:39,865 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 212 transitions. [2019-01-11 21:15:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-01-11 21:15:39,867 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:39,867 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:39,867 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:39,868 INFO L82 PathProgramCache]: Analyzing trace with hash -394489400, now seen corresponding path program 1 times [2019-01-11 21:15:39,868 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:15:39,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:15:39,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:39,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:39,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:15:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-11 21:15:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-11 21:15:40,030 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-11 21:15:40,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 09:15:40 BoogieIcfgContainer [2019-01-11 21:15:40,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-11 21:15:40,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-11 21:15:40,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-11 21:15:40,105 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-11 21:15:40,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:37" (3/4) ... [2019-01-11 21:15:40,110 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-11 21:15:40,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-11 21:15:40,111 INFO L168 Benchmark]: Toolchain (without parser) took 3889.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.7 MB in the beginning and 935.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 134.1 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:40,113 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:15:40,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:40,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:40,115 INFO L168 Benchmark]: Boogie Preprocessor took 37.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:15:40,116 INFO L168 Benchmark]: RCFGBuilder took 1138.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:40,117 INFO L168 Benchmark]: TraceAbstraction took 2165.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 935.5 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:40,117 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 1.1 GB. Free memory is still 935.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:15:40,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1138.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2165.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 935.5 MB in the end (delta: 122.0 MB). Peak memory consumption was 122.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.30 ms. Allocated memory is still 1.1 GB. Free memory is still 935.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 613]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 300. Possible FailurePath: [L622] int __retres1 ; [L8] int s__info_callback = __VERIFIER_nondet_int(); [L9] int s__in_handshake = __VERIFIER_nondet_int(); [L10] int s__state ; [L11] int s__new_session ; [L12] int s__server ; [L13] int s__version = __VERIFIER_nondet_int(); [L14] int s__type ; [L15] int s__init_num ; [L16] int s__bbio = __VERIFIER_nondet_int(); [L17] int s__wbio = __VERIFIER_nondet_int(); [L18] int s__hit = __VERIFIER_nondet_int(); [L19] int s__rwstate ; [L20] int s__init_buf___0 ; [L21] int s__debug = __VERIFIER_nondet_int(); [L22] int s__shutdown ; [L23] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L24] int s__ctx__stats__sess_connect_renegotiate ; [L25] int s__ctx__stats__sess_connect ; [L26] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int(); [L27] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int(); [L28] int s__s3__change_cipher_spec ; [L29] int s__s3__flags ; [L30] int s__s3__delay_buf_pop_ret ; [L31] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L32] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__next_state___0 ; [L37] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L38] int s__session__cipher ; [L39] int s__session__compress_meth ; [L40] int buf ; [L41] unsigned long tmp ; [L42] unsigned long l ; [L43] int num1 ; [L44] int cb ; [L45] int ret ; [L46] int new_state ; [L47] int state ; [L48] int skip ; [L49] int tmp___0 ; [L50] int tmp___1 = __VERIFIER_nondet_int(); [L51] int tmp___2 = __VERIFIER_nondet_int(); [L52] int tmp___3 = __VERIFIER_nondet_int(); [L53] int tmp___4 = __VERIFIER_nondet_int(); [L54] int tmp___5 = __VERIFIER_nondet_int(); [L55] int tmp___6 = __VERIFIER_nondet_int(); [L56] int tmp___7 = __VERIFIER_nondet_int(); [L57] int tmp___8 = __VERIFIER_nondet_int(); [L58] int tmp___9 = __VERIFIER_nondet_int(); [L59] int blastFlag ; [L60] int ag_X ; [L61] int ag_Y ; [L62] int ag_Z ; [L63] int __retres60 ; [L66] s__state = 12292 [L67] blastFlag = 0 [L68] tmp = __VERIFIER_nondet_int() [L69] cb = 0 [L70] ret = -1 [L71] skip = 0 [L72] tmp___0 = 0 [L73] COND TRUE s__info_callback != 0 [L74] cb = s__info_callback [L82] s__in_handshake = s__in_handshake + 1 [L83] COND FALSE !(tmp___1 + 12288) [L92] COND TRUE \read(s__hit) [L93] ag_Y = 208 [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L204] s__new_session = 1 [L205] s__state = 4096 [L206] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L211] s__server = 0 [L212] COND TRUE cb != 0 [L217] COND FALSE !(s__version + 65280 != 768) [L223] s__type = 4096 [L224] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L242] COND FALSE !(! tmp___4) [L248] COND FALSE !(! tmp___5) [L254] s__state = 4368 [L255] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L256] s__init_num = 0 [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L260] s__shutdown = 0 [L261] ret = __VERIFIER_nondet_int() [L262] COND TRUE blastFlag == 0 [L263] blastFlag = 1 [L267] COND FALSE !(ret <= 0) [L272] s__state = 4384 [L273] ag_X = s__state - 32 [L274] s__init_num = 0 [L275] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L293] COND FALSE !(ret <= 0) [L298] s__state = ag_X [L299] COND TRUE \read(s__hit) [L300] s__state = s__state | ag_Y [L304] s__init_num = 0 [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L350] ret = __VERIFIER_nondet_int() [L351] COND TRUE blastFlag <= 5 [L613] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 544 SDtfs, 37 SDslu, 265 SDs, 0 SdLazy, 283 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 6451 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 19/19 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-11 21:15:42,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 21:15:42,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 21:15:42,392 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 21:15:42,393 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 21:15:42,394 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 21:15:42,395 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 21:15:42,396 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 21:15:42,398 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 21:15:42,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 21:15:42,399 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-11 21:15:42,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-11 21:15:42,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-11 21:15:42,401 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-11 21:15:42,403 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-11 21:15:42,403 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-11 21:15:42,404 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-11 21:15:42,406 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-11 21:15:42,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-11 21:15:42,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-11 21:15:42,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-11 21:15:42,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-11 21:15:42,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-11 21:15:42,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-11 21:15:42,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-11 21:15:42,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-11 21:15:42,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-11 21:15:42,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-11 21:15:42,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-11 21:15:42,419 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-11 21:15:42,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-11 21:15:42,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-11 21:15:42,420 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-11 21:15:42,420 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-11 21:15:42,421 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-11 21:15:42,421 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-11 21:15:42,422 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-11 21:15:42,436 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 21:15:42,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 21:15:42,437 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 21:15:42,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 21:15:42,437 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 21:15:42,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 21:15:42,438 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 21:15:42,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 21:15:42,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 21:15:42,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 21:15:42,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-11 21:15:42,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 21:15:42,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 21:15:42,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 21:15:42,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-11 21:15:42,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 21:15:42,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-11 21:15:42,441 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 21:15:42,441 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 21:15:42,441 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 21:15:42,441 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-11 21:15:42,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 21:15:42,441 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-11 21:15:42,442 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-11 21:15:42,442 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 9661ac56b9d6946d9444c626fe505dda6865d149 [2019-01-11 21:15:42,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 21:15:42,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 21:15:42,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 21:15:42,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-11 21:15:42,502 INFO L276 PluginConnector]: CDTParser initialized [2019-01-11 21:15:42,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:42,556 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2376a030c/5a8ae6758c2f453eb69adc07567580bb/FLAGa0991d261 [2019-01-11 21:15:43,001 INFO L307 CDTParser]: Found 1 translation units. [2019-01-11 21:15:43,001 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:43,018 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2376a030c/5a8ae6758c2f453eb69adc07567580bb/FLAGa0991d261 [2019-01-11 21:15:43,341 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2376a030c/5a8ae6758c2f453eb69adc07567580bb [2019-01-11 21:15:43,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 21:15:43,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-11 21:15:43,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-11 21:15:43,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-11 21:15:43,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-11 21:15:43,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f25dd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43, skipping insertion in model container [2019-01-11 21:15:43,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-11 21:15:43,410 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-11 21:15:43,703 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:15:43,710 INFO L191 MainTranslator]: Completed pre-run [2019-01-11 21:15:43,773 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:15:43,794 INFO L195 MainTranslator]: Completed translation [2019-01-11 21:15:43,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43 WrapperNode [2019-01-11 21:15:43,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-11 21:15:43,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 21:15:43,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 21:15:43,796 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 21:15:43,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 21:15:43,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 21:15:43,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 21:15:43,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 21:15:43,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... [2019-01-11 21:15:43,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 21:15:43,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 21:15:43,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 21:15:43,975 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 21:15:43,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-11 21:15:44,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-11 21:15:44,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-11 21:15:44,147 WARN L745 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-11 21:15:45,073 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2019-01-11 21:15:45,073 INFO L695 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2019-01-11 21:15:45,074 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-11 21:15:45,074 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-11 21:15:45,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:45 BoogieIcfgContainer [2019-01-11 21:15:45,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 21:15:45,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-11 21:15:45,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-11 21:15:45,079 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-11 21:15:45,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 09:15:43" (1/3) ... [2019-01-11 21:15:45,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778050ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:15:45, skipping insertion in model container [2019-01-11 21:15:45,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:15:43" (2/3) ... [2019-01-11 21:15:45,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778050ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:15:45, skipping insertion in model container [2019-01-11 21:15:45,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:45" (3/3) ... [2019-01-11 21:15:45,085 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2019-01-11 21:15:45,092 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-11 21:15:45,098 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-11 21:15:45,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-11 21:15:45,143 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-11 21:15:45,144 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-11 21:15:45,144 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-11 21:15:45,144 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-11 21:15:45,144 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-11 21:15:45,144 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-11 21:15:45,144 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-11 21:15:45,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-11 21:15:45,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-11 21:15:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-01-11 21:15:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-01-11 21:15:45,169 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:45,170 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:45,175 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:45,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:45,181 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2019-01-11 21:15:45,184 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:45,185 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:45,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:45,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:15:45,355 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:45,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:45,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:45,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:45,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:45,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:45,379 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2019-01-11 21:15:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:45,948 INFO L93 Difference]: Finished difference Result 247 states and 423 transitions. [2019-01-11 21:15:45,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:45,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-01-11 21:15:45,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:45,969 INFO L225 Difference]: With dead ends: 247 [2019-01-11 21:15:45,969 INFO L226 Difference]: Without dead ends: 113 [2019-01-11 21:15:45,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-01-11 21:15:46,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-01-11 21:15:46,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-01-11 21:15:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2019-01-11 21:15:46,044 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2019-01-11 21:15:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:46,045 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2019-01-11 21:15:46,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:46,046 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2019-01-11 21:15:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-01-11 21:15:46,047 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:46,047 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:46,049 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:46,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:46,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2019-01-11 21:15:46,050 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:46,050 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:46,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:46,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:15:46,203 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:46,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:46,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:46,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:46,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:46,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:46,209 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2019-01-11 21:15:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:46,518 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2019-01-11 21:15:46,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:46,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2019-01-11 21:15:46,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:46,521 INFO L225 Difference]: With dead ends: 233 [2019-01-11 21:15:46,522 INFO L226 Difference]: Without dead ends: 131 [2019-01-11 21:15:46,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:46,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-01-11 21:15:46,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2019-01-11 21:15:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-01-11 21:15:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2019-01-11 21:15:46,536 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2019-01-11 21:15:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:46,537 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2019-01-11 21:15:46,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2019-01-11 21:15:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-01-11 21:15:46,539 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:46,539 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:46,539 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:46,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:46,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2019-01-11 21:15:46,540 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:46,540 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:46,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:46,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:46,626 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 21:15:46,626 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:46,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:46,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:46,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:46,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:46,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:46,634 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2019-01-11 21:15:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:46,682 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2019-01-11 21:15:46,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:46,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-01-11 21:15:46,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:46,685 INFO L225 Difference]: With dead ends: 271 [2019-01-11 21:15:46,685 INFO L226 Difference]: Without dead ends: 154 [2019-01-11 21:15:46,686 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:46,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-01-11 21:15:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-01-11 21:15:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-01-11 21:15:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2019-01-11 21:15:46,699 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2019-01-11 21:15:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:46,699 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2019-01-11 21:15:46,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2019-01-11 21:15:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-01-11 21:15:46,701 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:46,702 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:46,702 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2019-01-11 21:15:46,703 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:46,703 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:46,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:46,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:46,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 21:15:46,855 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:46,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:46,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:46,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:46,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:46,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:46,859 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2019-01-11 21:15:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:47,209 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2019-01-11 21:15:47,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:47,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-01-11 21:15:47,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:47,212 INFO L225 Difference]: With dead ends: 292 [2019-01-11 21:15:47,213 INFO L226 Difference]: Without dead ends: 175 [2019-01-11 21:15:47,214 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-01-11 21:15:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2019-01-11 21:15:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-01-11 21:15:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2019-01-11 21:15:47,231 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2019-01-11 21:15:47,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:47,232 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2019-01-11 21:15:47,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:47,232 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2019-01-11 21:15:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-01-11 21:15:47,239 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:47,240 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:47,241 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:47,241 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2019-01-11 21:15:47,242 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:47,242 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:47,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:47,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-01-11 21:15:47,556 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 21:15:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (6)] Exception during sending of exit command (exit): Broken pipe [2019-01-11 21:15:47,850 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-11 21:15:47,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-01-11 21:15:47,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-11 21:15:47,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-11 21:15:47,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-11 21:15:47,852 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 6 states. [2019-01-11 21:15:49,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:49,258 INFO L93 Difference]: Finished difference Result 566 states and 848 transitions. [2019-01-11 21:15:49,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-11 21:15:49,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2019-01-11 21:15:49,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:49,269 INFO L225 Difference]: With dead ends: 566 [2019-01-11 21:15:49,269 INFO L226 Difference]: Without dead ends: 431 [2019-01-11 21:15:49,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-01-11 21:15:49,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-01-11 21:15:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 419. [2019-01-11 21:15:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2019-01-11 21:15:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 607 transitions. [2019-01-11 21:15:49,336 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 607 transitions. Word has length 68 [2019-01-11 21:15:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:49,336 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 607 transitions. [2019-01-11 21:15:49,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-11 21:15:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 607 transitions. [2019-01-11 21:15:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-01-11 21:15:49,340 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:49,340 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:49,340 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:49,341 INFO L82 PathProgramCache]: Analyzing trace with hash 2031900493, now seen corresponding path program 1 times [2019-01-11 21:15:49,342 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:49,342 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:49,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:49,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-01-11 21:15:49,433 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:49,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:49,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:49,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:49,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:49,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:49,445 INFO L87 Difference]: Start difference. First operand 419 states and 607 transitions. Second operand 3 states. [2019-01-11 21:15:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:49,502 INFO L93 Difference]: Finished difference Result 927 states and 1364 transitions. [2019-01-11 21:15:49,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:49,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-01-11 21:15:49,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:49,508 INFO L225 Difference]: With dead ends: 927 [2019-01-11 21:15:49,508 INFO L226 Difference]: Without dead ends: 574 [2019-01-11 21:15:49,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:49,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-01-11 21:15:49,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 572. [2019-01-11 21:15:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-01-11 21:15:49,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 835 transitions. [2019-01-11 21:15:49,536 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 835 transitions. Word has length 68 [2019-01-11 21:15:49,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:49,537 INFO L480 AbstractCegarLoop]: Abstraction has 572 states and 835 transitions. [2019-01-11 21:15:49,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:49,537 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 835 transitions. [2019-01-11 21:15:49,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-01-11 21:15:49,540 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:49,540 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:49,540 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:49,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:49,540 INFO L82 PathProgramCache]: Analyzing trace with hash -875025075, now seen corresponding path program 1 times [2019-01-11 21:15:49,541 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:49,541 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:49,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:49,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-01-11 21:15:49,668 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:49,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:49,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:49,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:49,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:49,678 INFO L87 Difference]: Start difference. First operand 572 states and 835 transitions. Second operand 3 states. [2019-01-11 21:15:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:49,834 INFO L93 Difference]: Finished difference Result 576 states and 837 transitions. [2019-01-11 21:15:49,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:49,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-01-11 21:15:49,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:49,840 INFO L225 Difference]: With dead ends: 576 [2019-01-11 21:15:49,840 INFO L226 Difference]: Without dead ends: 419 [2019-01-11 21:15:49,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-01-11 21:15:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 417. [2019-01-11 21:15:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-01-11 21:15:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 598 transitions. [2019-01-11 21:15:49,885 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 598 transitions. Word has length 68 [2019-01-11 21:15:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:49,887 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 598 transitions. [2019-01-11 21:15:49,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 598 transitions. [2019-01-11 21:15:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-01-11 21:15:49,891 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:49,892 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:49,892 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:49,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1614503887, now seen corresponding path program 1 times [2019-01-11 21:15:49,895 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:49,895 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:49,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:50,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:50,621 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 21:15:50,621 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 21:15:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 21:15:51,044 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-11 21:15:51,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-01-11 21:15:51,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-11 21:15:51,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-11 21:15:51,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-11 21:15:51,047 INFO L87 Difference]: Start difference. First operand 417 states and 598 transitions. Second operand 11 states. [2019-01-11 21:15:51,671 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-01-11 21:15:52,081 WARN L181 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-11 21:15:54,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:54,877 INFO L93 Difference]: Finished difference Result 855 states and 1264 transitions. [2019-01-11 21:15:54,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-11 21:15:54,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2019-01-11 21:15:54,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:54,884 INFO L225 Difference]: With dead ends: 855 [2019-01-11 21:15:54,884 INFO L226 Difference]: Without dead ends: 699 [2019-01-11 21:15:54,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2019-01-11 21:15:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2019-01-11 21:15:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 476. [2019-01-11 21:15:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-01-11 21:15:54,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 667 transitions. [2019-01-11 21:15:54,908 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 667 transitions. Word has length 68 [2019-01-11 21:15:54,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:54,908 INFO L480 AbstractCegarLoop]: Abstraction has 476 states and 667 transitions. [2019-01-11 21:15:54,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-11 21:15:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 667 transitions. [2019-01-11 21:15:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-01-11 21:15:54,911 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:54,911 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:54,911 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:54,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1844660206, now seen corresponding path program 1 times [2019-01-11 21:15:54,913 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:54,913 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:54,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:55,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-01-11 21:15:55,088 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-11 21:15:55,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:55,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:55,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:55,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:55,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:55,095 INFO L87 Difference]: Start difference. First operand 476 states and 667 transitions. Second operand 3 states. [2019-01-11 21:15:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:55,646 INFO L93 Difference]: Finished difference Result 934 states and 1333 transitions. [2019-01-11 21:15:55,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:55,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-01-11 21:15:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:55,653 INFO L225 Difference]: With dead ends: 934 [2019-01-11 21:15:55,653 INFO L226 Difference]: Without dead ends: 524 [2019-01-11 21:15:55,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2019-01-11 21:15:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 518. [2019-01-11 21:15:55,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2019-01-11 21:15:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 719 transitions. [2019-01-11 21:15:55,675 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 719 transitions. Word has length 85 [2019-01-11 21:15:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:55,675 INFO L480 AbstractCegarLoop]: Abstraction has 518 states and 719 transitions. [2019-01-11 21:15:55,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 719 transitions. [2019-01-11 21:15:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-01-11 21:15:55,678 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:55,678 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:55,679 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:55,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:55,680 INFO L82 PathProgramCache]: Analyzing trace with hash 2022672797, now seen corresponding path program 1 times [2019-01-11 21:15:55,680 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:55,680 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:55,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:15:55,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:15:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-01-11 21:15:55,836 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (11)] Exception during sending of exit command (exit): Broken pipe [2019-01-11 21:15:55,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:15:55,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:15:55,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 21:15:55,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 21:15:55,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:55,844 INFO L87 Difference]: Start difference. First operand 518 states and 719 transitions. Second operand 3 states. [2019-01-11 21:15:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:15:56,039 INFO L93 Difference]: Finished difference Result 1418 states and 1983 transitions. [2019-01-11 21:15:56,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 21:15:56,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2019-01-11 21:15:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:15:56,045 INFO L225 Difference]: With dead ends: 1418 [2019-01-11 21:15:56,045 INFO L226 Difference]: Without dead ends: 966 [2019-01-11 21:15:56,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 21:15:56,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2019-01-11 21:15:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 962. [2019-01-11 21:15:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2019-01-11 21:15:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1334 transitions. [2019-01-11 21:15:56,088 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1334 transitions. Word has length 104 [2019-01-11 21:15:56,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:15:56,088 INFO L480 AbstractCegarLoop]: Abstraction has 962 states and 1334 transitions. [2019-01-11 21:15:56,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 21:15:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1334 transitions. [2019-01-11 21:15:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-01-11 21:15:56,091 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:15:56,092 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-11 21:15:56,092 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:15:56,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:15:56,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1888659291, now seen corresponding path program 1 times [2019-01-11 21:15:56,093 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2019-01-11 21:15:56,093 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-01-11 21:15:56,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:15:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-11 21:15:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-11 21:15:56,559 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-11 21:15:56,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 09:15:56 BoogieIcfgContainer [2019-01-11 21:15:56,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-11 21:15:56,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-11 21:15:56,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-11 21:15:56,661 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-11 21:15:56,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:15:45" (3/4) ... [2019-01-11 21:15:56,663 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-11 21:15:56,792 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-11 21:15:56,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-11 21:15:56,794 INFO L168 Benchmark]: Toolchain (without parser) took 13448.05 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 274.7 MB). Free memory was 954.0 MB in the beginning and 1.2 GB in the end (delta: -292.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:15:56,794 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:15:56,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.29 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,795 INFO L168 Benchmark]: Boogie Preprocessor took 44.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,796 INFO L168 Benchmark]: RCFGBuilder took 1100.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,796 INFO L168 Benchmark]: TraceAbstraction took 11584.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.0 MB). Peak memory consumption was 339.5 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,796 INFO L168 Benchmark]: Witness Printer took 131.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-01-11 21:15:56,801 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 447.29 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 133.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1100.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11584.08 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 131.6 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.0 MB). Peak memory consumption was 339.5 MB. Max. memory is 11.5 GB. * Witness Printer took 131.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 613]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L622] int __retres1 ; [L8] int s__info_callback = __VERIFIER_nondet_int(); [L9] int s__in_handshake = __VERIFIER_nondet_int(); [L10] int s__state ; [L11] int s__new_session ; [L12] int s__server ; [L13] int s__version = __VERIFIER_nondet_int(); [L14] int s__type ; [L15] int s__init_num ; [L16] int s__bbio = __VERIFIER_nondet_int(); [L17] int s__wbio = __VERIFIER_nondet_int(); [L18] int s__hit = __VERIFIER_nondet_int(); [L19] int s__rwstate ; [L20] int s__init_buf___0 ; [L21] int s__debug = __VERIFIER_nondet_int(); [L22] int s__shutdown ; [L23] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L24] int s__ctx__stats__sess_connect_renegotiate ; [L25] int s__ctx__stats__sess_connect ; [L26] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int(); [L27] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int(); [L28] int s__s3__change_cipher_spec ; [L29] int s__s3__flags ; [L30] int s__s3__delay_buf_pop_ret ; [L31] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L32] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__next_state___0 ; [L37] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L38] int s__session__cipher ; [L39] int s__session__compress_meth ; [L40] int buf ; [L41] unsigned long tmp ; [L42] unsigned long l ; [L43] int num1 ; [L44] int cb ; [L45] int ret ; [L46] int new_state ; [L47] int state ; [L48] int skip ; [L49] int tmp___0 ; [L50] int tmp___1 = __VERIFIER_nondet_int(); [L51] int tmp___2 = __VERIFIER_nondet_int(); [L52] int tmp___3 = __VERIFIER_nondet_int(); [L53] int tmp___4 = __VERIFIER_nondet_int(); [L54] int tmp___5 = __VERIFIER_nondet_int(); [L55] int tmp___6 = __VERIFIER_nondet_int(); [L56] int tmp___7 = __VERIFIER_nondet_int(); [L57] int tmp___8 = __VERIFIER_nondet_int(); [L58] int tmp___9 = __VERIFIER_nondet_int(); [L59] int blastFlag ; [L60] int ag_X ; [L61] int ag_Y ; [L62] int ag_Z ; [L63] int __retres60 ; [L66] s__state = 12292 [L67] blastFlag = 0 [L68] tmp = __VERIFIER_nondet_int() [L69] cb = 0 [L70] ret = -1 [L71] skip = 0 [L72] tmp___0 = 0 [L73] COND TRUE s__info_callback != 0 [L74] cb = s__info_callback [L82] s__in_handshake = s__in_handshake + 1 [L83] COND FALSE !(tmp___1 + 12288) [L92] COND FALSE !(\read(s__hit)) [L95] ag_Z = 48 [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L204] s__new_session = 1 [L205] s__state = 4096 [L206] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L211] s__server = 0 [L212] COND TRUE cb != 0 [L217] COND FALSE !(s__version + 65280 != 768) [L223] s__type = 4096 [L224] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L242] COND FALSE !(! tmp___4) [L248] COND FALSE !(! tmp___5) [L254] s__state = 4368 [L255] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L256] s__init_num = 0 [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L260] s__shutdown = 0 [L261] ret = __VERIFIER_nondet_int() [L262] COND TRUE blastFlag == 0 [L263] blastFlag = 1 [L267] COND FALSE !(ret <= 0) [L272] s__state = 4384 [L273] ag_X = s__state - 32 [L274] s__init_num = 0 [L275] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L293] COND FALSE !(ret <= 0) [L298] s__state = ag_X [L299] COND FALSE !(\read(s__hit)) [L302] s__state = s__state | ag_Z [L304] s__init_num = 0 [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L308] COND TRUE (unsigned long )s__s3__tmp__new_cipher__algorithms + 256UL [L309] skip = 1 [L323] s__state = 4416 [L324] s__init_num = 0 [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L328] ret = __VERIFIER_nondet_int() [L329] COND FALSE !(blastFlag == 3) [L334] COND FALSE !(ret <= 0) [L339] s__state = 4432 [L340] s__init_num = 0 [L341] COND FALSE !(! tmp___6) [L571] COND FALSE !(! s__s3__tmp__reuse_message) [L600] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L350] ret = __VERIFIER_nondet_int() [L351] COND TRUE blastFlag <= 5 [L613] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. UNSAFE Result, 11.5s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1877 SDtfs, 1713 SDslu, 2500 SDs, 0 SdLazy, 1590 SolverSat, 235 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 759 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=962occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 256 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 749 ConstructedInterpolants, 59 QuantifiedInterpolants, 169298 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1093 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 395/496 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...