./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 2e94e6aa 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 0.1.24-2e94e6a [2018-12-30 16:00:21,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-30 16:00:21,226 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-30 16:00:21,239 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-30 16:00:21,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-30 16:00:21,241 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-30 16:00:21,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-30 16:00:21,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-30 16:00:21,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-30 16:00:21,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-30 16:00:21,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-30 16:00:21,248 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-30 16:00:21,249 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-30 16:00:21,251 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-30 16:00:21,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-30 16:00:21,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-30 16:00:21,254 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-30 16:00:21,256 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-30 16:00:21,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-30 16:00:21,260 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-30 16:00:21,261 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-30 16:00:21,263 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-30 16:00:21,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-30 16:00:21,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-30 16:00:21,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-30 16:00:21,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-30 16:00:21,269 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-30 16:00:21,270 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-30 16:00:21,271 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-30 16:00:21,273 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-30 16:00:21,273 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-30 16:00:21,274 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-30 16:00:21,274 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-30 16:00:21,274 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-30 16:00:21,276 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-30 16:00:21,277 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-30 16:00:21,277 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-30 16:00:21,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-30 16:00:21,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-30 16:00:21,296 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-30 16:00:21,296 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-30 16:00:21,296 INFO L133 SettingsManager]: * Use SBE=true [2018-12-30 16:00:21,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-30 16:00:21,297 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-30 16:00:21,298 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-30 16:00:21,299 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-30 16:00:21,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-30 16:00:21,299 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-30 16:00:21,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-30 16:00:21,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-30 16:00:21,299 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-30 16:00:21,301 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-30 16:00:21,301 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-30 16:00:21,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-30 16:00:21,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-30 16:00:21,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-30 16:00:21,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-30 16:00:21,303 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-30 16:00:21,303 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-30 16:00:21,303 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-30 16:00:21,303 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 [2018-12-30 16:00:21,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-30 16:00:21,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-30 16:00:21,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-30 16:00:21,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-30 16:00:21,381 INFO L276 PluginConnector]: CDTParser initialized [2018-12-30 16:00:21,384 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:21,453 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b012bfb/6c10b865ef3c4b028951e9e337d36ea6/FLAG7a8ec8b81 [2018-12-30 16:00:21,959 INFO L307 CDTParser]: Found 1 translation units. [2018-12-30 16:00:21,960 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:21,978 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b012bfb/6c10b865ef3c4b028951e9e337d36ea6/FLAG7a8ec8b81 [2018-12-30 16:00:22,244 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79b012bfb/6c10b865ef3c4b028951e9e337d36ea6 [2018-12-30 16:00:22,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-30 16:00:22,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-30 16:00:22,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-30 16:00:22,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-30 16:00:22,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-30 16:00:22,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44732c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22, skipping insertion in model container [2018-12-30 16:00:22,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-30 16:00:22,334 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-30 16:00:22,693 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:00:22,698 INFO L191 MainTranslator]: Completed pre-run [2018-12-30 16:00:22,776 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:00:22,791 INFO L195 MainTranslator]: Completed translation [2018-12-30 16:00:22,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22 WrapperNode [2018-12-30 16:00:22,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-30 16:00:22,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-30 16:00:22,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-30 16:00:22,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-30 16:00:22,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-30 16:00:22,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-30 16:00:22,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-30 16:00:22,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-30 16:00:22,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:22,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:23,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:23,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (1/1) ... [2018-12-30 16:00:23,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-30 16:00:23,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-30 16:00:23,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-30 16:00:23,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-30 16:00:23,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (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 [2018-12-30 16:00:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-30 16:00:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-30 16:00:23,322 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-12-30 16:00:23,328 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-30 16:00:24,215 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-30 16:00:24,215 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-30 16:00:24,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:24 BoogieIcfgContainer [2018-12-30 16:00:24,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-30 16:00:24,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-30 16:00:24,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-30 16:00:24,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-30 16:00:24,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.12 04:00:22" (1/3) ... [2018-12-30 16:00:24,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599cb56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:00:24, skipping insertion in model container [2018-12-30 16:00:24,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:22" (2/3) ... [2018-12-30 16:00:24,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599cb56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:00:24, skipping insertion in model container [2018-12-30 16:00:24,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:24" (3/3) ... [2018-12-30 16:00:24,225 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:24,236 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-30 16:00:24,246 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-30 16:00:24,265 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-30 16:00:24,302 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-30 16:00:24,303 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-30 16:00:24,304 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-30 16:00:24,304 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-30 16:00:24,304 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-30 16:00:24,304 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-30 16:00:24,304 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-30 16:00:24,304 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-30 16:00:24,305 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-30 16:00:24,326 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-12-30 16:00:24,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-30 16:00:24,336 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:24,337 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] [2018-12-30 16:00:24,339 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:24,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:24,347 INFO L82 PathProgramCache]: Analyzing trace with hash 511659491, now seen corresponding path program 1 times [2018-12-30 16:00:24,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 16:00:24,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 16:00:24,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:24,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:24,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 16:00:24,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:24,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-30 16:00:24,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:24,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:24,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:24,626 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-12-30 16:00:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:24,957 INFO L93 Difference]: Finished difference Result 246 states and 422 transitions. [2018-12-30 16:00:24,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:24,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-30 16:00:24,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:24,973 INFO L225 Difference]: With dead ends: 246 [2018-12-30 16:00:24,973 INFO L226 Difference]: Without dead ends: 112 [2018-12-30 16:00:24,977 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 [2018-12-30 16:00:24,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-12-30 16:00:25,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-12-30 16:00:25,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-12-30 16:00:25,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 170 transitions. [2018-12-30 16:00:25,036 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 170 transitions. Word has length 24 [2018-12-30 16:00:25,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:25,036 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 170 transitions. [2018-12-30 16:00:25,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 170 transitions. [2018-12-30 16:00:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-30 16:00:25,038 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:25,039 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] [2018-12-30 16:00:25,039 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:25,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1971493731, now seen corresponding path program 1 times [2018-12-30 16:00:25,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 16:00:25,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 16:00:25,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:25,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:25,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 16:00:25,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:25,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:25,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:25,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:25,198 INFO L87 Difference]: Start difference. First operand 112 states and 170 transitions. Second operand 3 states. [2018-12-30 16:00:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:25,938 INFO L93 Difference]: Finished difference Result 232 states and 355 transitions. [2018-12-30 16:00:25,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:25,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-12-30 16:00:25,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:25,943 INFO L225 Difference]: With dead ends: 232 [2018-12-30 16:00:25,943 INFO L226 Difference]: Without dead ends: 130 [2018-12-30 16:00:25,946 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 [2018-12-30 16:00:25,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-30 16:00:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2018-12-30 16:00:25,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-12-30 16:00:25,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2018-12-30 16:00:25,973 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 36 [2018-12-30 16:00:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:25,974 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 190 transitions. [2018-12-30 16:00:25,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:25,975 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 190 transitions. [2018-12-30 16:00:25,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-30 16:00:25,979 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:25,979 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] [2018-12-30 16:00:25,979 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:25,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:25,980 INFO L82 PathProgramCache]: Analyzing trace with hash 441356492, now seen corresponding path program 1 times [2018-12-30 16:00:25,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 16:00:25,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 16:00:25,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:25,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:25,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-30 16:00:26,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:26,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:26,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:26,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:26,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:26,131 INFO L87 Difference]: Start difference. First operand 127 states and 190 transitions. Second operand 3 states. [2018-12-30 16:00:26,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:26,406 INFO L93 Difference]: Finished difference Result 265 states and 401 transitions. [2018-12-30 16:00:26,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:26,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-12-30 16:00:26,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:26,410 INFO L225 Difference]: With dead ends: 265 [2018-12-30 16:00:26,410 INFO L226 Difference]: Without dead ends: 148 [2018-12-30 16:00:26,411 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 [2018-12-30 16:00:26,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-30 16:00:26,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2018-12-30 16:00:26,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-30 16:00:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 212 transitions. [2018-12-30 16:00:26,428 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 212 transitions. Word has length 50 [2018-12-30 16:00:26,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:26,428 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 212 transitions. [2018-12-30 16:00:26,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 212 transitions. [2018-12-30 16:00:26,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-30 16:00:26,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:26,434 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] [2018-12-30 16:00:26,434 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash -394489400, now seen corresponding path program 1 times [2018-12-30 16:00:26,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 16:00:26,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 16:00:26,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:26,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:26,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 16:00:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-30 16:00:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-30 16:00:26,586 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-30 16:00:26,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.12 04:00:26 BoogieIcfgContainer [2018-12-30 16:00:26,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-30 16:00:26,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-30 16:00:26,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-30 16:00:26,666 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-30 16:00:26,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:24" (3/4) ... [2018-12-30 16:00:26,672 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-30 16:00:26,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-30 16:00:26,673 INFO L168 Benchmark]: Toolchain (without parser) took 4424.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 952.7 MB in the beginning and 988.8 MB in the end (delta: -36.1 MB). Peak memory consumption was 125.9 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,675 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-12-30 16:00:26,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.28 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 146.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 936.5 MB in the beginning and 1.2 GB in the end (delta: -221.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,683 INFO L168 Benchmark]: Boogie Preprocessor took 67.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,685 INFO L168 Benchmark]: RCFGBuilder took 1208.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,687 INFO L168 Benchmark]: TraceAbstraction took 2448.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:26,689 INFO L168 Benchmark]: Witness Printer took 5.84 ms. Allocated memory is still 1.2 GB. Free memory is still 988.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 16:00:26,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 541.28 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 146.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 936.5 MB in the beginning and 1.2 GB in the end (delta: -221.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1208.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2448.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.84 ms. Allocated memory is still 1.2 GB. Free memory is still 988.8 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, 127 locations, 1 error locations. UNSAFE Result, 2.3s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 544 SDtfs, 37 SDslu, 265 SDs, 0 SdLazy, 283 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s 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, 0.2s 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 0.1.24-2e94e6a [2018-12-30 16:00:29,099 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-30 16:00:29,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-30 16:00:29,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-30 16:00:29,122 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-30 16:00:29,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-30 16:00:29,125 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-30 16:00:29,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-30 16:00:29,130 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-30 16:00:29,131 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-30 16:00:29,136 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-30 16:00:29,136 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-30 16:00:29,138 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-30 16:00:29,139 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-30 16:00:29,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-30 16:00:29,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-30 16:00:29,144 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-30 16:00:29,148 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-30 16:00:29,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-30 16:00:29,163 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-30 16:00:29,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-30 16:00:29,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-30 16:00:29,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-30 16:00:29,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-30 16:00:29,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-30 16:00:29,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-30 16:00:29,175 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-30 16:00:29,176 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-30 16:00:29,182 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-30 16:00:29,183 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-30 16:00:29,183 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-30 16:00:29,187 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-30 16:00:29,187 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-30 16:00:29,187 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-30 16:00:29,188 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-30 16:00:29,190 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-30 16:00:29,190 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-30 16:00:29,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-30 16:00:29,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-30 16:00:29,224 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-30 16:00:29,224 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-30 16:00:29,225 INFO L133 SettingsManager]: * Use SBE=true [2018-12-30 16:00:29,225 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-30 16:00:29,225 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-30 16:00:29,225 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-30 16:00:29,225 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-30 16:00:29,226 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-30 16:00:29,227 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-30 16:00:29,227 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-30 16:00:29,227 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-30 16:00:29,228 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-30 16:00:29,228 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-30 16:00:29,228 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-30 16:00:29,228 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-30 16:00:29,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-30 16:00:29,229 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-30 16:00:29,229 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-30 16:00:29,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-30 16:00:29,229 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-30 16:00:29,229 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-30 16:00:29,229 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-30 16:00:29,230 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-30 16:00:29,231 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 [2018-12-30 16:00:29,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-30 16:00:29,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-30 16:00:29,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-30 16:00:29,307 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-30 16:00:29,310 INFO L276 PluginConnector]: CDTParser initialized [2018-12-30 16:00:29,311 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:29,373 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f649935ca/9705250feb0941209fd3313ea5ed8960/FLAG9ca0cfbc3 [2018-12-30 16:00:29,910 INFO L307 CDTParser]: Found 1 translation units. [2018-12-30 16:00:29,911 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:29,927 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f649935ca/9705250feb0941209fd3313ea5ed8960/FLAG9ca0cfbc3 [2018-12-30 16:00:30,224 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f649935ca/9705250feb0941209fd3313ea5ed8960 [2018-12-30 16:00:30,229 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-30 16:00:30,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-30 16:00:30,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-30 16:00:30,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-30 16:00:30,237 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-30 16:00:30,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7e2a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30, skipping insertion in model container [2018-12-30 16:00:30,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-30 16:00:30,314 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-30 16:00:30,627 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:00:30,633 INFO L191 MainTranslator]: Completed pre-run [2018-12-30 16:00:30,705 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 16:00:30,721 INFO L195 MainTranslator]: Completed translation [2018-12-30 16:00:30,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30 WrapperNode [2018-12-30 16:00:30,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-30 16:00:30,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-30 16:00:30,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-30 16:00:30,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-30 16:00:30,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-30 16:00:30,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-30 16:00:30,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-30 16:00:30,881 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-30 16:00:30,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (1/1) ... [2018-12-30 16:00:30,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-30 16:00:30,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-30 16:00:30,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-30 16:00:30,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-30 16:00:30,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (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 [2018-12-30 16:00:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-30 16:00:31,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-30 16:00:31,152 WARN L650 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-12-30 16:00:31,152 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-30 16:00:32,212 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-30 16:00:32,213 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-30 16:00:32,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:32 BoogieIcfgContainer [2018-12-30 16:00:32,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-30 16:00:32,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-30 16:00:32,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-30 16:00:32,219 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-30 16:00:32,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.12 04:00:30" (1/3) ... [2018-12-30 16:00:32,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fed7bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:00:32, skipping insertion in model container [2018-12-30 16:00:32,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 04:00:30" (2/3) ... [2018-12-30 16:00:32,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fed7bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 04:00:32, skipping insertion in model container [2018-12-30 16:00:32,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:32" (3/3) ... [2018-12-30 16:00:32,222 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3_false-unreach-call_true-no-overflow.BV.c.cil.c [2018-12-30 16:00:32,234 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-30 16:00:32,242 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-30 16:00:32,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-30 16:00:32,294 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-30 16:00:32,295 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-30 16:00:32,295 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-30 16:00:32,296 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-30 16:00:32,296 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-30 16:00:32,296 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-30 16:00:32,296 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-30 16:00:32,296 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-30 16:00:32,296 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-30 16:00:32,316 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-12-30 16:00:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-30 16:00:32,324 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:32,325 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] [2018-12-30 16:00:32,328 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:32,334 INFO L82 PathProgramCache]: Analyzing trace with hash 511659491, now seen corresponding path program 1 times [2018-12-30 16:00:32,338 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:32,338 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 [2018-12-30 16:00:32,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:32,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:32,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 16:00:32,470 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4 --incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-12-30 16:00:32,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:32,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-30 16:00:32,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:32,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:32,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:32,497 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-12-30 16:00:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:33,272 INFO L93 Difference]: Finished difference Result 246 states and 422 transitions. [2018-12-30 16:00:33,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:33,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-30 16:00:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:33,289 INFO L225 Difference]: With dead ends: 246 [2018-12-30 16:00:33,289 INFO L226 Difference]: Without dead ends: 112 [2018-12-30 16:00:33,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-12-30 16:00:33,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-12-30 16:00:33,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-12-30 16:00:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 170 transitions. [2018-12-30 16:00:33,339 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 170 transitions. Word has length 24 [2018-12-30 16:00:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:33,339 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 170 transitions. [2018-12-30 16:00:33,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 170 transitions. [2018-12-30 16:00:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-30 16:00:33,341 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:33,342 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] [2018-12-30 16:00:33,342 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:33,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1971493731, now seen corresponding path program 1 times [2018-12-30 16:00:33,343 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:33,343 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 [2018-12-30 16:00:33,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:33,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 16:00:33,490 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:33,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:33,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:33,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:33,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:33,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:33,498 INFO L87 Difference]: Start difference. First operand 112 states and 170 transitions. Second operand 3 states. [2018-12-30 16:00:33,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:33,960 INFO L93 Difference]: Finished difference Result 232 states and 355 transitions. [2018-12-30 16:00:33,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:33,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-12-30 16:00:33,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:33,963 INFO L225 Difference]: With dead ends: 232 [2018-12-30 16:00:33,963 INFO L226 Difference]: Without dead ends: 130 [2018-12-30 16:00:33,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-12-30 16:00:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2018-12-30 16:00:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-12-30 16:00:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2018-12-30 16:00:33,977 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 36 [2018-12-30 16:00:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:33,978 INFO L480 AbstractCegarLoop]: Abstraction has 127 states and 190 transitions. [2018-12-30 16:00:33,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 190 transitions. [2018-12-30 16:00:33,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-12-30 16:00:33,980 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:33,980 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] [2018-12-30 16:00:33,980 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:33,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:33,981 INFO L82 PathProgramCache]: Analyzing trace with hash 441356492, now seen corresponding path program 1 times [2018-12-30 16:00:33,981 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:33,982 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 [2018-12-30 16:00:34,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:34,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-30 16:00:34,089 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:34,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:34,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:34,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:34,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:34,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:34,094 INFO L87 Difference]: Start difference. First operand 127 states and 190 transitions. Second operand 3 states. [2018-12-30 16:00:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:34,462 INFO L93 Difference]: Finished difference Result 265 states and 401 transitions. [2018-12-30 16:00:34,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:34,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-12-30 16:00:34,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:34,466 INFO L225 Difference]: With dead ends: 265 [2018-12-30 16:00:34,466 INFO L226 Difference]: Without dead ends: 148 [2018-12-30 16:00:34,467 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:34,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-30 16:00:34,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2018-12-30 16:00:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-30 16:00:34,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 212 transitions. [2018-12-30 16:00:34,486 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 212 transitions. Word has length 50 [2018-12-30 16:00:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:34,487 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 212 transitions. [2018-12-30 16:00:34,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 212 transitions. [2018-12-30 16:00:34,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-30 16:00:34,492 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:34,493 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] [2018-12-30 16:00:34,494 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:34,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash -394489400, now seen corresponding path program 1 times [2018-12-30 16:00:34,495 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:34,496 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 [2018-12-30 16:00:34,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:34,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-30 16:00:34,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-30 16:00:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-30 16:00:35,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-30 16:00:35,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-12-30 16:00:35,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-30 16:00:35,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-30 16:00:35,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-30 16:00:35,139 INFO L87 Difference]: Start difference. First operand 144 states and 212 transitions. Second operand 6 states. [2018-12-30 16:00:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:36,795 INFO L93 Difference]: Finished difference Result 513 states and 781 transitions. [2018-12-30 16:00:36,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-30 16:00:36,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-12-30 16:00:36,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:36,801 INFO L225 Difference]: With dead ends: 513 [2018-12-30 16:00:36,801 INFO L226 Difference]: Without dead ends: 378 [2018-12-30 16:00:36,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-30 16:00:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-12-30 16:00:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 366. [2018-12-30 16:00:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-12-30 16:00:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 540 transitions. [2018-12-30 16:00:36,832 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 540 transitions. Word has length 67 [2018-12-30 16:00:36,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:36,833 INFO L480 AbstractCegarLoop]: Abstraction has 366 states and 540 transitions. [2018-12-30 16:00:36,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-30 16:00:36,833 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 540 transitions. [2018-12-30 16:00:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-30 16:00:36,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:36,837 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] [2018-12-30 16:00:36,837 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:36,837 INFO L82 PathProgramCache]: Analyzing trace with hash 2095039562, now seen corresponding path program 1 times [2018-12-30 16:00:36,838 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:36,838 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 [2018-12-30 16:00:36,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:36,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-30 16:00:36,939 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:36,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:36,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:36,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:36,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:36,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:36,944 INFO L87 Difference]: Start difference. First operand 366 states and 540 transitions. Second operand 3 states. [2018-12-30 16:00:37,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:37,148 INFO L93 Difference]: Finished difference Result 874 states and 1297 transitions. [2018-12-30 16:00:37,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:37,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-12-30 16:00:37,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:37,153 INFO L225 Difference]: With dead ends: 874 [2018-12-30 16:00:37,153 INFO L226 Difference]: Without dead ends: 521 [2018-12-30 16:00:37,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2018-12-30 16:00:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2018-12-30 16:00:37,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2018-12-30 16:00:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 768 transitions. [2018-12-30 16:00:37,198 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 768 transitions. Word has length 67 [2018-12-30 16:00:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:37,198 INFO L480 AbstractCegarLoop]: Abstraction has 519 states and 768 transitions. [2018-12-30 16:00:37,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 768 transitions. [2018-12-30 16:00:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-30 16:00:37,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:37,206 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] [2018-12-30 16:00:37,206 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:37,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:37,206 INFO L82 PathProgramCache]: Analyzing trace with hash -811886006, now seen corresponding path program 1 times [2018-12-30 16:00:37,209 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:37,209 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 [2018-12-30 16:00:37,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:37,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:37,337 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-30 16:00:37,337 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:37,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:37,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:37,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:37,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:37,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:37,340 INFO L87 Difference]: Start difference. First operand 519 states and 768 transitions. Second operand 3 states. [2018-12-30 16:00:37,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:37,420 INFO L93 Difference]: Finished difference Result 523 states and 770 transitions. [2018-12-30 16:00:37,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:37,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-12-30 16:00:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:37,423 INFO L225 Difference]: With dead ends: 523 [2018-12-30 16:00:37,423 INFO L226 Difference]: Without dead ends: 366 [2018-12-30 16:00:37,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-12-30 16:00:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2018-12-30 16:00:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-12-30 16:00:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 531 transitions. [2018-12-30 16:00:37,438 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 531 transitions. Word has length 67 [2018-12-30 16:00:37,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:37,439 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 531 transitions. [2018-12-30 16:00:37,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:37,439 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 531 transitions. [2018-12-30 16:00:37,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-30 16:00:37,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:37,440 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] [2018-12-30 16:00:37,441 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:37,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:37,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1677642956, now seen corresponding path program 1 times [2018-12-30 16:00:37,441 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:37,441 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 [2018-12-30 16:00:37,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:37,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-30 16:00:37,712 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-30 16:00:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 12 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-30 16:00:37,943 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-30 16:00:37,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-12-30 16:00:37,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-30 16:00:37,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-30 16:00:37,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-30 16:00:37,946 INFO L87 Difference]: Start difference. First operand 364 states and 531 transitions. Second operand 11 states. [2018-12-30 16:00:40,148 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-12-30 16:00:40,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:40,220 INFO L93 Difference]: Finished difference Result 828 states and 1231 transitions. [2018-12-30 16:00:40,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-30 16:00:40,223 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 67 [2018-12-30 16:00:40,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:40,233 INFO L225 Difference]: With dead ends: 828 [2018-12-30 16:00:40,236 INFO L226 Difference]: Without dead ends: 672 [2018-12-30 16:00:40,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2018-12-30 16:00:40,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2018-12-30 16:00:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 423. [2018-12-30 16:00:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2018-12-30 16:00:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 600 transitions. [2018-12-30 16:00:40,270 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 600 transitions. Word has length 67 [2018-12-30 16:00:40,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:40,272 INFO L480 AbstractCegarLoop]: Abstraction has 423 states and 600 transitions. [2018-12-30 16:00:40,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-30 16:00:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 600 transitions. [2018-12-30 16:00:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-12-30 16:00:40,276 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:40,276 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] [2018-12-30 16:00:40,276 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash -602651212, now seen corresponding path program 1 times [2018-12-30 16:00:40,277 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:40,277 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 [2018-12-30 16:00:40,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:40,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-12-30 16:00:40,436 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:40,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:40,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:40,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:40,440 INFO L87 Difference]: Start difference. First operand 423 states and 600 transitions. Second operand 3 states. [2018-12-30 16:00:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:41,147 INFO L93 Difference]: Finished difference Result 881 states and 1266 transitions. [2018-12-30 16:00:41,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:41,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-12-30 16:00:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:41,153 INFO L225 Difference]: With dead ends: 881 [2018-12-30 16:00:41,153 INFO L226 Difference]: Without dead ends: 471 [2018-12-30 16:00:41,154 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2018-12-30 16:00:41,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 465. [2018-12-30 16:00:41,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2018-12-30 16:00:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 652 transitions. [2018-12-30 16:00:41,175 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 652 transitions. Word has length 84 [2018-12-30 16:00:41,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:41,176 INFO L480 AbstractCegarLoop]: Abstraction has 465 states and 652 transitions. [2018-12-30 16:00:41,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:41,176 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 652 transitions. [2018-12-30 16:00:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-30 16:00:41,178 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:41,178 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] [2018-12-30 16:00:41,179 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:41,179 INFO L82 PathProgramCache]: Analyzing trace with hash -801029670, now seen corresponding path program 1 times [2018-12-30 16:00:41,179 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:41,180 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 [2018-12-30 16:00:41,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 16:00:41,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 16:00:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-30 16:00:41,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-30 16:00:41,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 16:00:41,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-30 16:00:41,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-30 16:00:41,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-30 16:00:41,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:41,353 INFO L87 Difference]: Start difference. First operand 465 states and 652 transitions. Second operand 3 states. [2018-12-30 16:00:41,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 16:00:41,653 INFO L93 Difference]: Finished difference Result 1365 states and 1916 transitions. [2018-12-30 16:00:41,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-30 16:00:41,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2018-12-30 16:00:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 16:00:41,662 INFO L225 Difference]: With dead ends: 1365 [2018-12-30 16:00:41,663 INFO L226 Difference]: Without dead ends: 913 [2018-12-30 16:00:41,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-30 16:00:41,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2018-12-30 16:00:41,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 909. [2018-12-30 16:00:41,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-12-30 16:00:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1267 transitions. [2018-12-30 16:00:41,702 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1267 transitions. Word has length 103 [2018-12-30 16:00:41,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 16:00:41,702 INFO L480 AbstractCegarLoop]: Abstraction has 909 states and 1267 transitions. [2018-12-30 16:00:41,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-30 16:00:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1267 transitions. [2018-12-30 16:00:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-30 16:00:41,704 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 16:00:41,706 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] [2018-12-30 16:00:41,706 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 16:00:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 16:00:41,707 INFO L82 PathProgramCache]: Analyzing trace with hash -935043176, now seen corresponding path program 1 times [2018-12-30 16:00:41,707 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-30 16:00:41,707 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 [2018-12-30 16:00:41,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 16:00:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-30 16:00:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-30 16:00:42,265 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-30 16:00:42,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.12 04:00:42 BoogieIcfgContainer [2018-12-30 16:00:42,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-30 16:00:42,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-30 16:00:42,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-30 16:00:42,355 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-30 16:00:42,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 04:00:32" (3/4) ... [2018-12-30 16:00:42,360 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-30 16:00:42,495 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-30 16:00:42,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-30 16:00:42,500 INFO L168 Benchmark]: Toolchain (without parser) took 12270.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 952.7 MB in the beginning and 810.0 MB in the end (delta: 142.7 MB). Peak memory consumption was 329.8 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,501 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-30 16:00:42,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 936.5 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,502 INFO L168 Benchmark]: Boogie Preprocessor took 44.41 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,505 INFO L168 Benchmark]: RCFGBuilder took 1289.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,505 INFO L168 Benchmark]: TraceAbstraction took 10139.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 817.7 MB in the end (delta: 230.4 MB). Peak memory consumption was 309.1 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,505 INFO L168 Benchmark]: Witness Printer took 144.58 ms. Allocated memory is still 1.2 GB. Free memory was 817.7 MB in the beginning and 810.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-12-30 16:00:42,509 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 490.95 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 936.5 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 155.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 936.5 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.41 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1289.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10139.55 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 817.7 MB in the end (delta: 230.4 MB). Peak memory consumption was 309.1 MB. Max. memory is 11.5 GB. * Witness Printer took 144.58 ms. Allocated memory is still 1.2 GB. Free memory was 817.7 MB in the beginning and 810.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 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, 127 locations, 1 error locations. UNSAFE Result, 10.0s OverallTime, 10 OverallIterations, 6 TraceHistogramMax, 6.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1705 SDtfs, 1801 SDslu, 1959 SDs, 0 SdLazy, 1564 SolverSat, 236 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 698 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=909occurred in iteration=9, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 282 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 668 NumberOfCodeBlocks, 668 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 688 ConstructedInterpolants, 59 QuantifiedInterpolants, 161154 SizeOfPredicates, 6 NumberOfNonLiveVariables, 988 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 379/480 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...