./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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 ../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3bbefcee290f98530e25ab3f5cc4cda5aa0150b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-19 22:24:07,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:24:07,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:24:07,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:24:07,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:24:07,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:24:07,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:24:07,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:24:07,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:24:07,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:24:07,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:24:07,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:24:07,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:24:07,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:24:07,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:24:07,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:24:07,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:24:07,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:24:07,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:24:07,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:24:07,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:24:07,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:24:07,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:24:07,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:24:07,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:24:07,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:24:07,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:24:07,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:24:07,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:24:07,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:24:07,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:24:07,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:24:07,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:24:07,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:24:07,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:24:07,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:24:07,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:24:07,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:24:07,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:24:07,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:24:07,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:24:07,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:24:07,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:24:07,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:24:07,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:24:07,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:24:07,470 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:24:07,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:24:07,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:24:07,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:24:07,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:24:07,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:24:07,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:24:07,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:24:07,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:24:07,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:24:07,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:24:07,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:24:07,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:24:07,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:24:07,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:24:07,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:24:07,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:24:07,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:24:07,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:24:07,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:24:07,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3bbefcee290f98530e25ab3f5cc4cda5aa0150b [2020-10-19 22:24:07,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:24:07,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:24:07,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:24:07,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:24:07,715 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:24:07,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-10-19 22:24:07,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f326a89/234c9a27f791430e8c56a466dd128070/FLAGcc28ddea0 [2020-10-19 22:24:08,294 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:24:08,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1.cil-1.c [2020-10-19 22:24:08,308 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f326a89/234c9a27f791430e8c56a466dd128070/FLAGcc28ddea0 [2020-10-19 22:24:08,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00f326a89/234c9a27f791430e8c56a466dd128070 [2020-10-19 22:24:08,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:24:08,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:24:08,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:08,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:24:08,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:24:08,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:08" (1/1) ... [2020-10-19 22:24:08,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10b23277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:08, skipping insertion in model container [2020-10-19 22:24:08,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:08" (1/1) ... [2020-10-19 22:24:08,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:24:08,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:24:08,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:08,991 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:24:09,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:09,070 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:24:09,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09 WrapperNode [2020-10-19 22:24:09,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:09,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:09,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:24:09,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:24:09,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:09,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:24:09,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:24:09,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:24:09,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (1/1) ... [2020-10-19 22:24:09,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:24:09,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:24:09,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:24:09,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:24:09,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (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 [2020-10-19 22:24:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:24:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:24:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:24:09,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:24:09,406 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:24:10,044 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-19 22:24:10,044 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-19 22:24:10,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:24:10,064 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:24:10,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:10 BoogieIcfgContainer [2020-10-19 22:24:10,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:24:10,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:24:10,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:24:10,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:24:10,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:24:08" (1/3) ... [2020-10-19 22:24:10,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132836b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:10, skipping insertion in model container [2020-10-19 22:24:10,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:09" (2/3) ... [2020-10-19 22:24:10,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132836b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:10, skipping insertion in model container [2020-10-19 22:24:10,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:10" (3/3) ... [2020-10-19 22:24:10,078 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil-1.c [2020-10-19 22:24:10,090 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:24:10,100 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:24:10,121 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:24:10,142 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:24:10,142 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:24:10,143 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:24:10,143 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:24:10,143 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:24:10,143 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:24:10,143 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:24:10,144 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:24:10,162 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-19 22:24:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 22:24:10,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:10,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:10,172 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:10,177 INFO L82 PathProgramCache]: Analyzing trace with hash -947483198, now seen corresponding path program 1 times [2020-10-19 22:24:10,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:10,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619499382] [2020-10-19 22:24:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:10,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619499382] [2020-10-19 22:24:10,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:10,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:10,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598709674] [2020-10-19 22:24:10,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:10,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:10,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:10,498 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-10-19 22:24:10,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:10,828 INFO L93 Difference]: Finished difference Result 334 states and 571 transitions. [2020-10-19 22:24:10,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:10,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-10-19 22:24:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:10,845 INFO L225 Difference]: With dead ends: 334 [2020-10-19 22:24:10,845 INFO L226 Difference]: Without dead ends: 178 [2020-10-19 22:24:10,848 INFO L677 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 [2020-10-19 22:24:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-19 22:24:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2020-10-19 22:24:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-19 22:24:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 278 transitions. [2020-10-19 22:24:10,903 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 278 transitions. Word has length 45 [2020-10-19 22:24:10,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:10,904 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 278 transitions. [2020-10-19 22:24:10,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 278 transitions. [2020-10-19 22:24:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-19 22:24:10,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:10,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:10,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:24:10,908 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:10,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:10,909 INFO L82 PathProgramCache]: Analyzing trace with hash 472840096, now seen corresponding path program 1 times [2020-10-19 22:24:10,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:10,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561006766] [2020-10-19 22:24:10,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:11,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:11,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561006766] [2020-10-19 22:24:11,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:11,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:11,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410037233] [2020-10-19 22:24:11,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:11,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:11,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:11,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:11,049 INFO L87 Difference]: Start difference. First operand 172 states and 278 transitions. Second operand 3 states. [2020-10-19 22:24:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:11,292 INFO L93 Difference]: Finished difference Result 385 states and 632 transitions. [2020-10-19 22:24:11,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:11,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-19 22:24:11,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:11,295 INFO L225 Difference]: With dead ends: 385 [2020-10-19 22:24:11,295 INFO L226 Difference]: Without dead ends: 219 [2020-10-19 22:24:11,297 INFO L677 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 [2020-10-19 22:24:11,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-19 22:24:11,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2020-10-19 22:24:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-19 22:24:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 355 transitions. [2020-10-19 22:24:11,315 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 355 transitions. Word has length 46 [2020-10-19 22:24:11,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:11,316 INFO L481 AbstractCegarLoop]: Abstraction has 213 states and 355 transitions. [2020-10-19 22:24:11,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 355 transitions. [2020-10-19 22:24:11,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-19 22:24:11,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:11,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:11,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:24:11,324 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:11,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:11,325 INFO L82 PathProgramCache]: Analyzing trace with hash 488183924, now seen corresponding path program 1 times [2020-10-19 22:24:11,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:11,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307297498] [2020-10-19 22:24:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:11,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307297498] [2020-10-19 22:24:11,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:11,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:11,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264911565] [2020-10-19 22:24:11,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:11,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:11,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:11,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:11,471 INFO L87 Difference]: Start difference. First operand 213 states and 355 transitions. Second operand 3 states. [2020-10-19 22:24:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:11,688 INFO L93 Difference]: Finished difference Result 449 states and 756 transitions. [2020-10-19 22:24:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:11,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-10-19 22:24:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:11,694 INFO L225 Difference]: With dead ends: 449 [2020-10-19 22:24:11,695 INFO L226 Difference]: Without dead ends: 244 [2020-10-19 22:24:11,699 INFO L677 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 [2020-10-19 22:24:11,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-19 22:24:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-10-19 22:24:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-19 22:24:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 411 transitions. [2020-10-19 22:24:11,734 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 411 transitions. Word has length 74 [2020-10-19 22:24:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:11,737 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 411 transitions. [2020-10-19 22:24:11,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:11,738 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 411 transitions. [2020-10-19 22:24:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 22:24:11,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:11,742 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:11,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:24:11,743 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:11,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1651483739, now seen corresponding path program 1 times [2020-10-19 22:24:11,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:11,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696909301] [2020-10-19 22:24:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:11,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696909301] [2020-10-19 22:24:11,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:11,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:11,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057176124] [2020-10-19 22:24:11,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:11,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:11,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:11,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:11,811 INFO L87 Difference]: Start difference. First operand 244 states and 411 transitions. Second operand 3 states. [2020-10-19 22:24:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:12,022 INFO L93 Difference]: Finished difference Result 526 states and 892 transitions. [2020-10-19 22:24:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:12,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-19 22:24:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:12,025 INFO L225 Difference]: With dead ends: 526 [2020-10-19 22:24:12,026 INFO L226 Difference]: Without dead ends: 290 [2020-10-19 22:24:12,027 INFO L677 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 [2020-10-19 22:24:12,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-10-19 22:24:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2020-10-19 22:24:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-10-19 22:24:12,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 486 transitions. [2020-10-19 22:24:12,045 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 486 transitions. Word has length 85 [2020-10-19 22:24:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:12,045 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 486 transitions. [2020-10-19 22:24:12,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 486 transitions. [2020-10-19 22:24:12,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-19 22:24:12,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:12,059 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:12,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:24:12,060 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1358393014, now seen corresponding path program 1 times [2020-10-19 22:24:12,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:12,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155535998] [2020-10-19 22:24:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:12,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155535998] [2020-10-19 22:24:12,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:12,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:12,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081507465] [2020-10-19 22:24:12,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:12,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:12,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:12,123 INFO L87 Difference]: Start difference. First operand 286 states and 486 transitions. Second operand 3 states. [2020-10-19 22:24:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:12,273 INFO L93 Difference]: Finished difference Result 581 states and 988 transitions. [2020-10-19 22:24:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:12,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-10-19 22:24:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:12,276 INFO L225 Difference]: With dead ends: 581 [2020-10-19 22:24:12,276 INFO L226 Difference]: Without dead ends: 303 [2020-10-19 22:24:12,277 INFO L677 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 [2020-10-19 22:24:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-19 22:24:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2020-10-19 22:24:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-10-19 22:24:12,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 508 transitions. [2020-10-19 22:24:12,289 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 508 transitions. Word has length 86 [2020-10-19 22:24:12,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:12,290 INFO L481 AbstractCegarLoop]: Abstraction has 301 states and 508 transitions. [2020-10-19 22:24:12,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:12,290 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 508 transitions. [2020-10-19 22:24:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-19 22:24:12,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:12,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:12,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:24:12,292 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:12,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:12,292 INFO L82 PathProgramCache]: Analyzing trace with hash 709328611, now seen corresponding path program 1 times [2020-10-19 22:24:12,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:12,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853896666] [2020-10-19 22:24:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:12,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853896666] [2020-10-19 22:24:12,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:12,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:12,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938317511] [2020-10-19 22:24:12,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:12,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:12,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:12,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:12,344 INFO L87 Difference]: Start difference. First operand 301 states and 508 transitions. Second operand 3 states. [2020-10-19 22:24:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:12,543 INFO L93 Difference]: Finished difference Result 598 states and 1009 transitions. [2020-10-19 22:24:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:12,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-10-19 22:24:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:12,546 INFO L225 Difference]: With dead ends: 598 [2020-10-19 22:24:12,546 INFO L226 Difference]: Without dead ends: 303 [2020-10-19 22:24:12,547 INFO L677 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 [2020-10-19 22:24:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-19 22:24:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-19 22:24:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 22:24:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 503 transitions. [2020-10-19 22:24:12,558 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 503 transitions. Word has length 86 [2020-10-19 22:24:12,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:12,559 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 503 transitions. [2020-10-19 22:24:12,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 503 transitions. [2020-10-19 22:24:12,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-19 22:24:12,560 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:12,560 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:12,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:24:12,561 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:12,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:12,561 INFO L82 PathProgramCache]: Analyzing trace with hash 564851953, now seen corresponding path program 1 times [2020-10-19 22:24:12,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:12,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102695277] [2020-10-19 22:24:12,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:12,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102695277] [2020-10-19 22:24:12,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:12,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:12,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39846016] [2020-10-19 22:24:12,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:12,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:12,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:12,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:12,613 INFO L87 Difference]: Start difference. First operand 299 states and 503 transitions. Second operand 3 states. [2020-10-19 22:24:12,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:12,748 INFO L93 Difference]: Finished difference Result 592 states and 996 transitions. [2020-10-19 22:24:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:12,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-10-19 22:24:12,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:12,751 INFO L225 Difference]: With dead ends: 592 [2020-10-19 22:24:12,751 INFO L226 Difference]: Without dead ends: 301 [2020-10-19 22:24:12,752 INFO L677 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 [2020-10-19 22:24:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-19 22:24:12,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2020-10-19 22:24:12,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 22:24:12,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 499 transitions. [2020-10-19 22:24:12,765 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 499 transitions. Word has length 87 [2020-10-19 22:24:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:12,765 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 499 transitions. [2020-10-19 22:24:12,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 499 transitions. [2020-10-19 22:24:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-19 22:24:12,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:12,767 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:12,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:24:12,768 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash 19025617, now seen corresponding path program 1 times [2020-10-19 22:24:12,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:12,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235704242] [2020-10-19 22:24:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-10-19 22:24:12,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235704242] [2020-10-19 22:24:12,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:12,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:12,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900683005] [2020-10-19 22:24:12,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:12,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:12,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:12,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:12,814 INFO L87 Difference]: Start difference. First operand 299 states and 499 transitions. Second operand 3 states. [2020-10-19 22:24:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:12,960 INFO L93 Difference]: Finished difference Result 599 states and 998 transitions. [2020-10-19 22:24:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:12,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-10-19 22:24:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:12,963 INFO L225 Difference]: With dead ends: 599 [2020-10-19 22:24:12,963 INFO L226 Difference]: Without dead ends: 308 [2020-10-19 22:24:12,964 INFO L677 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 [2020-10-19 22:24:12,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-19 22:24:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2020-10-19 22:24:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-10-19 22:24:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 505 transitions. [2020-10-19 22:24:12,982 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 505 transitions. Word has length 100 [2020-10-19 22:24:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:12,983 INFO L481 AbstractCegarLoop]: Abstraction has 308 states and 505 transitions. [2020-10-19 22:24:12,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 505 transitions. [2020-10-19 22:24:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-19 22:24:12,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:12,985 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:24:12,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:24:12,985 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:12,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1778247501, now seen corresponding path program 1 times [2020-10-19 22:24:12,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:12,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004618923] [2020-10-19 22:24:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:13,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004618923] [2020-10-19 22:24:13,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:13,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:13,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779489399] [2020-10-19 22:24:13,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:13,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:13,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:13,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:13,085 INFO L87 Difference]: Start difference. First operand 308 states and 505 transitions. Second operand 3 states. [2020-10-19 22:24:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:13,246 INFO L93 Difference]: Finished difference Result 639 states and 1051 transitions. [2020-10-19 22:24:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:13,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-10-19 22:24:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:13,250 INFO L225 Difference]: With dead ends: 639 [2020-10-19 22:24:13,250 INFO L226 Difference]: Without dead ends: 339 [2020-10-19 22:24:13,251 INFO L677 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 [2020-10-19 22:24:13,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-19 22:24:13,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-10-19 22:24:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-19 22:24:13,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 552 transitions. [2020-10-19 22:24:13,264 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 552 transitions. Word has length 100 [2020-10-19 22:24:13,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:13,265 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 552 transitions. [2020-10-19 22:24:13,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:13,265 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 552 transitions. [2020-10-19 22:24:13,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-19 22:24:13,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:13,269 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:24:13,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:24:13,270 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:13,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1388103916, now seen corresponding path program 1 times [2020-10-19 22:24:13,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:13,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381849368] [2020-10-19 22:24:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:13,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381849368] [2020-10-19 22:24:13,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:13,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:13,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101863496] [2020-10-19 22:24:13,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:13,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:13,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:13,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:13,339 INFO L87 Difference]: Start difference. First operand 337 states and 552 transitions. Second operand 3 states. [2020-10-19 22:24:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:13,507 INFO L93 Difference]: Finished difference Result 668 states and 1094 transitions. [2020-10-19 22:24:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:13,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-10-19 22:24:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:13,510 INFO L225 Difference]: With dead ends: 668 [2020-10-19 22:24:13,510 INFO L226 Difference]: Without dead ends: 339 [2020-10-19 22:24:13,511 INFO L677 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 [2020-10-19 22:24:13,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-10-19 22:24:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 337. [2020-10-19 22:24:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-10-19 22:24:13,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 548 transitions. [2020-10-19 22:24:13,528 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 548 transitions. Word has length 101 [2020-10-19 22:24:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:13,530 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 548 transitions. [2020-10-19 22:24:13,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 548 transitions. [2020-10-19 22:24:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-19 22:24:13,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:13,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:13,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:24:13,532 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash -916073731, now seen corresponding path program 1 times [2020-10-19 22:24:13,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:13,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155481738] [2020-10-19 22:24:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:13,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155481738] [2020-10-19 22:24:13,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:13,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:13,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165601637] [2020-10-19 22:24:13,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:13,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:13,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:13,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:13,616 INFO L87 Difference]: Start difference. First operand 337 states and 548 transitions. Second operand 3 states. [2020-10-19 22:24:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:13,777 INFO L93 Difference]: Finished difference Result 701 states and 1144 transitions. [2020-10-19 22:24:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:13,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-10-19 22:24:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:13,780 INFO L225 Difference]: With dead ends: 701 [2020-10-19 22:24:13,780 INFO L226 Difference]: Without dead ends: 372 [2020-10-19 22:24:13,782 INFO L677 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 [2020-10-19 22:24:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-19 22:24:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-10-19 22:24:13,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-19 22:24:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 590 transitions. [2020-10-19 22:24:13,797 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 590 transitions. Word has length 102 [2020-10-19 22:24:13,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:13,797 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 590 transitions. [2020-10-19 22:24:13,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:13,798 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 590 transitions. [2020-10-19 22:24:13,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 22:24:13,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:13,800 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:13,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:24:13,800 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:13,801 INFO L82 PathProgramCache]: Analyzing trace with hash 62624868, now seen corresponding path program 1 times [2020-10-19 22:24:13,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:13,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362630962] [2020-10-19 22:24:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:13,848 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-19 22:24:13,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362630962] [2020-10-19 22:24:13,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:13,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:13,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587329646] [2020-10-19 22:24:13,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:13,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:13,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:13,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:13,851 INFO L87 Difference]: Start difference. First operand 364 states and 590 transitions. Second operand 3 states. [2020-10-19 22:24:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:14,056 INFO L93 Difference]: Finished difference Result 728 states and 1181 transitions. [2020-10-19 22:24:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:14,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-19 22:24:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:14,060 INFO L225 Difference]: With dead ends: 728 [2020-10-19 22:24:14,061 INFO L226 Difference]: Without dead ends: 372 [2020-10-19 22:24:14,062 INFO L677 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 [2020-10-19 22:24:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2020-10-19 22:24:14,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 364. [2020-10-19 22:24:14,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-10-19 22:24:14,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 585 transitions. [2020-10-19 22:24:14,085 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 585 transitions. Word has length 103 [2020-10-19 22:24:14,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:14,086 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 585 transitions. [2020-10-19 22:24:14,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 585 transitions. [2020-10-19 22:24:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:24:14,089 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:14,089 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:14,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:24:14,090 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1773852357, now seen corresponding path program 1 times [2020-10-19 22:24:14,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:14,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599219522] [2020-10-19 22:24:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-19 22:24:14,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599219522] [2020-10-19 22:24:14,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:14,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:14,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652067936] [2020-10-19 22:24:14,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:14,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:14,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:14,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:14,161 INFO L87 Difference]: Start difference. First operand 364 states and 585 transitions. Second operand 3 states. [2020-10-19 22:24:14,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:14,319 INFO L93 Difference]: Finished difference Result 745 states and 1199 transitions. [2020-10-19 22:24:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:14,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:24:14,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:14,322 INFO L225 Difference]: With dead ends: 745 [2020-10-19 22:24:14,322 INFO L226 Difference]: Without dead ends: 389 [2020-10-19 22:24:14,323 INFO L677 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 [2020-10-19 22:24:14,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-19 22:24:14,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-10-19 22:24:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-19 22:24:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 614 transitions. [2020-10-19 22:24:14,339 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 614 transitions. Word has length 106 [2020-10-19 22:24:14,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:14,339 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 614 transitions. [2020-10-19 22:24:14,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 614 transitions. [2020-10-19 22:24:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:24:14,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:14,341 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:14,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:24:14,342 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:14,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:14,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1450939714, now seen corresponding path program 1 times [2020-10-19 22:24:14,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:14,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23066856] [2020-10-19 22:24:14,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-19 22:24:14,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23066856] [2020-10-19 22:24:14,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:14,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:14,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131358445] [2020-10-19 22:24:14,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:14,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:14,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:14,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:14,383 INFO L87 Difference]: Start difference. First operand 385 states and 614 transitions. Second operand 3 states. [2020-10-19 22:24:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:14,553 INFO L93 Difference]: Finished difference Result 766 states and 1222 transitions. [2020-10-19 22:24:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:14,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:24:14,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:14,557 INFO L225 Difference]: With dead ends: 766 [2020-10-19 22:24:14,557 INFO L226 Difference]: Without dead ends: 389 [2020-10-19 22:24:14,558 INFO L677 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 [2020-10-19 22:24:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-19 22:24:14,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-10-19 22:24:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-19 22:24:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 608 transitions. [2020-10-19 22:24:14,582 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 608 transitions. Word has length 107 [2020-10-19 22:24:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:14,583 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 608 transitions. [2020-10-19 22:24:14,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 608 transitions. [2020-10-19 22:24:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-19 22:24:14,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:14,587 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:14,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:24:14,587 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:14,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1044207465, now seen corresponding path program 1 times [2020-10-19 22:24:14,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:14,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691196813] [2020-10-19 22:24:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 22:24:14,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691196813] [2020-10-19 22:24:14,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:14,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:14,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303351332] [2020-10-19 22:24:14,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:14,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:14,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:14,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:14,674 INFO L87 Difference]: Start difference. First operand 385 states and 608 transitions. Second operand 3 states. [2020-10-19 22:24:14,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:14,754 INFO L93 Difference]: Finished difference Result 1093 states and 1730 transitions. [2020-10-19 22:24:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:14,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-10-19 22:24:14,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:14,759 INFO L225 Difference]: With dead ends: 1093 [2020-10-19 22:24:14,759 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 22:24:14,760 INFO L677 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 [2020-10-19 22:24:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 22:24:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-19 22:24:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-19 22:24:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1128 transitions. [2020-10-19 22:24:14,802 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1128 transitions. Word has length 122 [2020-10-19 22:24:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:14,803 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1128 transitions. [2020-10-19 22:24:14,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1128 transitions. [2020-10-19 22:24:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-19 22:24:14,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:14,808 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:24:14,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:24:14,808 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:14,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:14,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1005180377, now seen corresponding path program 1 times [2020-10-19 22:24:14,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:14,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246255063] [2020-10-19 22:24:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:14,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:14,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:14,978 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:24:14,978 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:24:14,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 22:24:15,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:15 BoogieIcfgContainer [2020-10-19 22:24:15,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:15,124 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:15,124 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:15,125 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:15,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:10" (3/4) ... [2020-10-19 22:24:15,132 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:24:15,367 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:15,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:15,371 INFO L168 Benchmark]: Toolchain (without parser) took 6792.85 ms. Allocated memory was 34.1 MB in the beginning and 93.8 MB in the end (delta: 59.8 MB). Free memory was 6.9 MB in the beginning and 50.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,372 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.4 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.65 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.8 MB in the beginning and 20.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.40 ms. Allocated memory is still 43.5 MB. Free memory was 20.9 MB in the beginning and 17.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,376 INFO L168 Benchmark]: Boogie Preprocessor took 43.58 ms. Allocated memory is still 43.5 MB. Free memory was 17.8 MB in the beginning and 15.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,376 INFO L168 Benchmark]: RCFGBuilder took 884.26 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 15.4 MB in the beginning and 11.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,377 INFO L168 Benchmark]: TraceAbstraction took 5052.22 ms. Allocated memory was 47.7 MB in the beginning and 93.8 MB in the end (delta: 46.1 MB). Free memory was 11.5 MB in the beginning and 67.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 52.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,377 INFO L168 Benchmark]: Witness Printer took 243.66 ms. Allocated memory is still 93.8 MB. Free memory was 67.2 MB in the beginning and 50.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:15,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 34.1 MB. Free memory was 12.4 MB in the beginning and 12.4 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 478.65 ms. Allocated memory was 36.2 MB in the beginning and 43.5 MB in the end (delta: 7.3 MB). Free memory was 18.8 MB in the beginning and 20.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 68.40 ms. Allocated memory is still 43.5 MB. Free memory was 20.9 MB in the beginning and 17.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.58 ms. Allocated memory is still 43.5 MB. Free memory was 17.8 MB in the beginning and 15.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 884.26 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 15.4 MB in the beginning and 11.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5052.22 ms. Allocated memory was 47.7 MB in the beginning and 93.8 MB in the end (delta: 46.1 MB). Free memory was 11.5 MB in the beginning and 67.2 MB in the end (delta: -55.7 MB). Peak memory consumption was 52.4 MB. Max. memory is 14.3 GB. * Witness Printer took 243.66 ms. Allocated memory is still 93.8 MB. Free memory was 67.2 MB in the beginning and 50.5 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L618] int s ; [L619] int tmp ; [L623] s = 8464 [L13] int s__info_callback = __VERIFIER_nondet_int() ; [L14] int s__in_handshake = __VERIFIER_nondet_int() ; [L15] int s__state ; [L16] int s__new_session ; [L17] int s__server ; [L18] int s__version = __VERIFIER_nondet_int() ; [L19] int s__type ; [L20] int s__init_num ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__cert = __VERIFIER_nondet_int() ; [L27] int s__options = __VERIFIER_nondet_int() ; [L28] int s__verify_mode = __VERIFIER_nondet_int() ; [L29] int s__session__peer = __VERIFIER_nondet_int() ; [L30] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L31] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L33] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L34] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__cert_request ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__use_rsa_tmp ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int buf = __VERIFIER_nondet_int() ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp = __VERIFIER_nondet_long() ; [L47] int cb ; [L48] long num1 ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int got_new_session ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 ; [L57] int tmp___4 ; [L58] int tmp___5 ; [L59] int tmp___6 ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 ; [L63] int tmp___10 ; [L64] int blastFlag ; [L65] int __cil_tmp55 ; [L66] unsigned long __cil_tmp56 ; [L67] unsigned long __cil_tmp57 ; [L68] unsigned long __cil_tmp58 ; [L69] unsigned long __cil_tmp59 ; [L70] int __cil_tmp60 ; [L71] unsigned long __cil_tmp61 ; [L75] s__state = initial_state [L76] blastFlag = 0 [L77] Time = tmp [L78] cb = 0 [L79] ret = -1 [L80] skip = 0 [L81] got_new_session = 0 [L82] COND TRUE s__info_callback != 0 [L83] cb = s__info_callback [L89] s__in_handshake ++ [L90] COND FALSE !(tmp___1 + 12288) [L95] COND FALSE !(s__cert == 0) [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND TRUE \read(s__hit) [L292] s__state = 8656 [L296] s__init_num = 0 [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND TRUE s__state == 8656 [L490] s__session__cipher = s__s3__tmp__new_cipher [L491] tmp___9 = __VERIFIER_nondet_int() [L492] COND FALSE !(! tmp___9) [L496] ret = __VERIFIER_nondet_int() [L497] COND TRUE blastFlag == 2 [L498] blastFlag = 3 [L500] COND FALSE !(ret <= 0) [L503] s__state = 8672 [L504] s__init_num = 0 [L505] tmp___10 = __VERIFIER_nondet_int() [L506] COND FALSE !(! tmp___10) [L585] COND FALSE !(! s__s3__tmp__reuse_message) [L602] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 8192) [L111] COND FALSE !(s__state == 24576) [L114] COND FALSE !(s__state == 8195) [L117] COND FALSE !(s__state == 8480) [L120] COND FALSE !(s__state == 8481) [L123] COND FALSE !(s__state == 8482) [L126] COND FALSE !(s__state == 8464) [L129] COND FALSE !(s__state == 8465) [L132] COND FALSE !(s__state == 8466) [L135] COND FALSE !(s__state == 8496) [L138] COND FALSE !(s__state == 8497) [L141] COND FALSE !(s__state == 8512) [L144] COND FALSE !(s__state == 8513) [L147] COND FALSE !(s__state == 8528) [L150] COND FALSE !(s__state == 8529) [L153] COND FALSE !(s__state == 8544) [L156] COND FALSE !(s__state == 8545) [L159] COND FALSE !(s__state == 8560) [L162] COND FALSE !(s__state == 8561) [L165] COND FALSE !(s__state == 8448) [L168] COND FALSE !(s__state == 8576) [L171] COND FALSE !(s__state == 8577) [L174] COND FALSE !(s__state == 8592) [L177] COND FALSE !(s__state == 8593) [L180] COND FALSE !(s__state == 8608) [L183] COND FALSE !(s__state == 8609) [L186] COND FALSE !(s__state == 8640) [L189] COND FALSE !(s__state == 8641) [L192] COND FALSE !(s__state == 8656) [L195] COND FALSE !(s__state == 8657) [L198] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND FALSE !(blastFlag == 4) [L517] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_1.cil-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 16, TraceHistogramMax: 4, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2225 SDtfs, 2216 SDslu, 435 SDs, 0 SdLazy, 1340 SolverSat, 604 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=716occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 52 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1472 NumberOfCodeBlocks, 1472 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1335 ConstructedInterpolants, 0 QuantifiedInterpolants, 221866 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 736/736 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...