./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.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_2.cil-2.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 f7047f55ac2887c2060382be67f6b237af9da492 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:24:21,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:24:21,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:24:21,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:24:21,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:24:21,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:24:21,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:24:21,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:24:21,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:24:21,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:24:21,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:24:21,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:24:21,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:24:21,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:24:21,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:24:21,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:24:21,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:24:21,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:24:21,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:24:21,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:24:21,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:24:21,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:24:21,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:24:21,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:24:21,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:24:21,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:24:21,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:24:21,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:24:21,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:24:21,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:24:21,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:24:21,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:24:21,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:24:21,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:24:21,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:24:21,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:24:21,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:24:21,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:24:21,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:24:21,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:24:21,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:24:21,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:24:21,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:24:21,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:24:21,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:24:21,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:24:21,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:24:21,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:24:21,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:24:21,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:24:21,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:24:21,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:24:21,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:24:21,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:24:21,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:24:21,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:24:21,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:24:21,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:24:21,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:24:21,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:24:21,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:24:21,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:24:21,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:24:21,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:24:21,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:24:21,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:24:21,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:24:21,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:24:21,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:24:21,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:24:21,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:24:21,818 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 -> f7047f55ac2887c2060382be67f6b237af9da492 [2020-10-19 22:24:22,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:24:22,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:24:22,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:24:22,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:24:22,041 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:24:22,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-10-19 22:24:22,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742e1cbdd/64b07bbfc6e845f98c0aeaf119e6e6bd/FLAGb26309da4 [2020-10-19 22:24:22,631 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:24:22,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_2.cil-2.c [2020-10-19 22:24:22,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742e1cbdd/64b07bbfc6e845f98c0aeaf119e6e6bd/FLAGb26309da4 [2020-10-19 22:24:22,984 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/742e1cbdd/64b07bbfc6e845f98c0aeaf119e6e6bd [2020-10-19 22:24:22,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:24:22,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:24:22,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:22,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:24:22,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:24:22,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:22" (1/1) ... [2020-10-19 22:24:23,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1851278c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23, skipping insertion in model container [2020-10-19 22:24:23,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:22" (1/1) ... [2020-10-19 22:24:23,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:24:23,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:24:23,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:23,350 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:24:23,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:23,443 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:24:23,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23 WrapperNode [2020-10-19 22:24:23,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:23,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:23,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:24:23,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:24:23,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:23,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:24:23,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:24:23,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:24:23,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (1/1) ... [2020-10-19 22:24:23,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:24:23,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:24:23,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:24:23,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:24:23,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (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 22:24:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:24:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:24:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:24:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:24:23,767 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:24:24,396 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-19 22:24:24,396 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-19 22:24:24,417 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:24:24,417 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:24:24,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:24 BoogieIcfgContainer [2020-10-19 22:24:24,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:24:24,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:24:24,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:24:24,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:24:24,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:24:22" (1/3) ... [2020-10-19 22:24:24,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac8a8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:24, skipping insertion in model container [2020-10-19 22:24:24,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:23" (2/3) ... [2020-10-19 22:24:24,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac8a8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:24, skipping insertion in model container [2020-10-19 22:24:24,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:24" (3/3) ... [2020-10-19 22:24:24,432 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_2.cil-2.c [2020-10-19 22:24:24,444 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:24:24,452 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:24:24,466 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:24:24,496 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:24:24,497 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:24:24,497 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:24:24,498 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:24:24,498 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:24:24,498 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:24:24,498 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:24:24,498 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:24:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-10-19 22:24:24,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-19 22:24:24,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:24,538 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] [2020-10-19 22:24:24,539 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:24,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1632005994, now seen corresponding path program 1 times [2020-10-19 22:24:24,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:24,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309176406] [2020-10-19 22:24:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:24,857 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 22:24:24,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309176406] [2020-10-19 22:24:24,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:24,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:24,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806339436] [2020-10-19 22:24:24,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:24,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:24,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:24,882 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 3 states. [2020-10-19 22:24:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:25,191 INFO L93 Difference]: Finished difference Result 329 states and 565 transitions. [2020-10-19 22:24:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:25,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-10-19 22:24:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:25,205 INFO L225 Difference]: With dead ends: 329 [2020-10-19 22:24:25,205 INFO L226 Difference]: Without dead ends: 175 [2020-10-19 22:24:25,209 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 22:24:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-19 22:24:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2020-10-19 22:24:25,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-19 22:24:25,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 275 transitions. [2020-10-19 22:24:25,260 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 275 transitions. Word has length 44 [2020-10-19 22:24:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:25,261 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 275 transitions. [2020-10-19 22:24:25,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 275 transitions. [2020-10-19 22:24:25,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-19 22:24:25,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:25,264 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 22:24:25,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:24:25,264 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:25,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:25,265 INFO L82 PathProgramCache]: Analyzing trace with hash -954576436, now seen corresponding path program 1 times [2020-10-19 22:24:25,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:25,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340568166] [2020-10-19 22:24:25,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:25,348 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 22:24:25,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340568166] [2020-10-19 22:24:25,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:25,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:25,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089692698] [2020-10-19 22:24:25,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:25,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:25,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:25,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:25,363 INFO L87 Difference]: Start difference. First operand 170 states and 275 transitions. Second operand 3 states. [2020-10-19 22:24:25,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:25,579 INFO L93 Difference]: Finished difference Result 380 states and 624 transitions. [2020-10-19 22:24:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:25,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-10-19 22:24:25,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:25,583 INFO L225 Difference]: With dead ends: 380 [2020-10-19 22:24:25,583 INFO L226 Difference]: Without dead ends: 216 [2020-10-19 22:24:25,584 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 22:24:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-10-19 22:24:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2020-10-19 22:24:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-19 22:24:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 352 transitions. [2020-10-19 22:24:25,603 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 352 transitions. Word has length 45 [2020-10-19 22:24:25,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:25,604 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 352 transitions. [2020-10-19 22:24:25,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 352 transitions. [2020-10-19 22:24:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-19 22:24:25,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:25,609 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] [2020-10-19 22:24:25,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:24:25,609 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:25,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:25,610 INFO L82 PathProgramCache]: Analyzing trace with hash 2071968837, now seen corresponding path program 1 times [2020-10-19 22:24:25,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:25,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413533063] [2020-10-19 22:24:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:25,736 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 22:24:25,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413533063] [2020-10-19 22:24:25,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:25,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:25,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523178742] [2020-10-19 22:24:25,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:25,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:25,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:25,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:25,738 INFO L87 Difference]: Start difference. First operand 211 states and 352 transitions. Second operand 3 states. [2020-10-19 22:24:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:25,926 INFO L93 Difference]: Finished difference Result 445 states and 750 transitions. [2020-10-19 22:24:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:25,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-19 22:24:25,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:25,929 INFO L225 Difference]: With dead ends: 445 [2020-10-19 22:24:25,929 INFO L226 Difference]: Without dead ends: 242 [2020-10-19 22:24:25,930 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 22:24:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-19 22:24:25,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-19 22:24:25,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-19 22:24:25,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 408 transitions. [2020-10-19 22:24:25,947 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 408 transitions. Word has length 72 [2020-10-19 22:24:25,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:25,948 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 408 transitions. [2020-10-19 22:24:25,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:25,948 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 408 transitions. [2020-10-19 22:24:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-19 22:24:25,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:25,952 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] [2020-10-19 22:24:25,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:24:25,952 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:25,953 INFO L82 PathProgramCache]: Analyzing trace with hash -947039589, now seen corresponding path program 1 times [2020-10-19 22:24:25,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:25,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809061689] [2020-10-19 22:24:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:26,011 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 22:24:26,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809061689] [2020-10-19 22:24:26,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:26,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:26,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727504867] [2020-10-19 22:24:26,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:26,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:26,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:26,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:26,013 INFO L87 Difference]: Start difference. First operand 242 states and 408 transitions. Second operand 3 states. [2020-10-19 22:24:26,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:26,165 INFO L93 Difference]: Finished difference Result 493 states and 832 transitions. [2020-10-19 22:24:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:26,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-19 22:24:26,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:26,168 INFO L225 Difference]: With dead ends: 493 [2020-10-19 22:24:26,168 INFO L226 Difference]: Without dead ends: 259 [2020-10-19 22:24:26,169 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 22:24:26,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-19 22:24:26,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2020-10-19 22:24:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-19 22:24:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 431 transitions. [2020-10-19 22:24:26,183 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 431 transitions. Word has length 84 [2020-10-19 22:24:26,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:26,183 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 431 transitions. [2020-10-19 22:24:26,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 431 transitions. [2020-10-19 22:24:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-19 22:24:26,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:26,187 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] [2020-10-19 22:24:26,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:24:26,187 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:26,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:26,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1168944985, now seen corresponding path program 1 times [2020-10-19 22:24:26,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:26,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273455950] [2020-10-19 22:24:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:26,269 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 22:24:26,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273455950] [2020-10-19 22:24:26,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:26,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:26,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594622545] [2020-10-19 22:24:26,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:26,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:26,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:26,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:26,271 INFO L87 Difference]: Start difference. First operand 257 states and 431 transitions. Second operand 3 states. [2020-10-19 22:24:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:26,460 INFO L93 Difference]: Finished difference Result 552 states and 931 transitions. [2020-10-19 22:24:26,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:26,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-19 22:24:26,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:26,462 INFO L225 Difference]: With dead ends: 552 [2020-10-19 22:24:26,462 INFO L226 Difference]: Without dead ends: 303 [2020-10-19 22:24:26,463 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 22:24:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-19 22:24:26,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-19 22:24:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 22:24:26,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 505 transitions. [2020-10-19 22:24:26,476 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 505 transitions. Word has length 84 [2020-10-19 22:24:26,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:26,477 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 505 transitions. [2020-10-19 22:24:26,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:26,477 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 505 transitions. [2020-10-19 22:24:26,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 22:24:26,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:26,480 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] [2020-10-19 22:24:26,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:24:26,480 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:26,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2129818626, now seen corresponding path program 1 times [2020-10-19 22:24:26,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:26,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964050978] [2020-10-19 22:24:26,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:26,546 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 22:24:26,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964050978] [2020-10-19 22:24:26,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:26,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:26,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820611218] [2020-10-19 22:24:26,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:26,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:26,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:26,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:26,549 INFO L87 Difference]: Start difference. First operand 299 states and 505 transitions. Second operand 3 states. [2020-10-19 22:24:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:26,672 INFO L93 Difference]: Finished difference Result 592 states and 1000 transitions. [2020-10-19 22:24:26,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:26,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-19 22:24:26,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:26,674 INFO L225 Difference]: With dead ends: 592 [2020-10-19 22:24:26,675 INFO L226 Difference]: Without dead ends: 301 [2020-10-19 22:24:26,675 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 22:24:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-19 22:24:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 299. [2020-10-19 22:24:26,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-19 22:24:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 501 transitions. [2020-10-19 22:24:26,686 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 501 transitions. Word has length 85 [2020-10-19 22:24:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:26,686 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 501 transitions. [2020-10-19 22:24:26,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 501 transitions. [2020-10-19 22:24:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 22:24:26,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:26,688 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] [2020-10-19 22:24:26,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:24:26,688 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash -122958423, now seen corresponding path program 1 times [2020-10-19 22:24:26,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:26,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91945519] [2020-10-19 22:24:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:26,762 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 22:24:26,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91945519] [2020-10-19 22:24:26,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:26,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:26,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445871617] [2020-10-19 22:24:26,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:26,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:26,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:26,766 INFO L87 Difference]: Start difference. First operand 299 states and 501 transitions. Second operand 3 states. [2020-10-19 22:24:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:26,951 INFO L93 Difference]: Finished difference Result 594 states and 995 transitions. [2020-10-19 22:24:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:26,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-19 22:24:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:26,954 INFO L225 Difference]: With dead ends: 594 [2020-10-19 22:24:26,954 INFO L226 Difference]: Without dead ends: 301 [2020-10-19 22:24:26,955 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 22:24:26,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-10-19 22:24:26,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 297. [2020-10-19 22:24:26,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-19 22:24:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 496 transitions. [2020-10-19 22:24:26,966 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 496 transitions. Word has length 85 [2020-10-19 22:24:26,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:26,966 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 496 transitions. [2020-10-19 22:24:26,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:26,967 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 496 transitions. [2020-10-19 22:24:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-19 22:24:26,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:26,968 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] [2020-10-19 22:24:26,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:24:26,969 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:26,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:26,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1553184093, now seen corresponding path program 1 times [2020-10-19 22:24:26,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:26,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296733578] [2020-10-19 22:24:26,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:27,004 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 22:24:27,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296733578] [2020-10-19 22:24:27,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:27,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:27,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607205583] [2020-10-19 22:24:27,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:27,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:27,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:27,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:27,007 INFO L87 Difference]: Start difference. First operand 297 states and 496 transitions. Second operand 3 states. [2020-10-19 22:24:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:27,127 INFO L93 Difference]: Finished difference Result 595 states and 992 transitions. [2020-10-19 22:24:27,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:27,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-10-19 22:24:27,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:27,129 INFO L225 Difference]: With dead ends: 595 [2020-10-19 22:24:27,129 INFO L226 Difference]: Without dead ends: 306 [2020-10-19 22:24:27,130 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 22:24:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-19 22:24:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2020-10-19 22:24:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-10-19 22:24:27,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 502 transitions. [2020-10-19 22:24:27,141 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 502 transitions. Word has length 97 [2020-10-19 22:24:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:27,141 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 502 transitions. [2020-10-19 22:24:27,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 502 transitions. [2020-10-19 22:24:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-19 22:24:27,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:27,143 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] [2020-10-19 22:24:27,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:24:27,144 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:27,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:27,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2083521026, now seen corresponding path program 1 times [2020-10-19 22:24:27,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:27,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539524086] [2020-10-19 22:24:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:27,191 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 22:24:27,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539524086] [2020-10-19 22:24:27,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:27,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:27,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591176246] [2020-10-19 22:24:27,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:27,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:27,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:27,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:27,198 INFO L87 Difference]: Start difference. First operand 306 states and 502 transitions. Second operand 3 states. [2020-10-19 22:24:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:27,368 INFO L93 Difference]: Finished difference Result 635 states and 1045 transitions. [2020-10-19 22:24:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:27,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-10-19 22:24:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:27,372 INFO L225 Difference]: With dead ends: 635 [2020-10-19 22:24:27,372 INFO L226 Difference]: Without dead ends: 337 [2020-10-19 22:24:27,373 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 22:24:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-19 22:24:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-10-19 22:24:27,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-19 22:24:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 549 transitions. [2020-10-19 22:24:27,386 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 549 transitions. Word has length 98 [2020-10-19 22:24:27,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:27,386 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 549 transitions. [2020-10-19 22:24:27,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 549 transitions. [2020-10-19 22:24:27,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-19 22:24:27,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:27,388 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] [2020-10-19 22:24:27,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:24:27,388 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:27,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:27,389 INFO L82 PathProgramCache]: Analyzing trace with hash -102460539, now seen corresponding path program 1 times [2020-10-19 22:24:27,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:27,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013350491] [2020-10-19 22:24:27,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:27,461 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 22:24:27,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013350491] [2020-10-19 22:24:27,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:27,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:27,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327464054] [2020-10-19 22:24:27,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:27,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:27,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:27,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:27,468 INFO L87 Difference]: Start difference. First operand 335 states and 549 transitions. Second operand 3 states. [2020-10-19 22:24:27,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:27,670 INFO L93 Difference]: Finished difference Result 664 states and 1088 transitions. [2020-10-19 22:24:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:27,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-10-19 22:24:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:27,674 INFO L225 Difference]: With dead ends: 664 [2020-10-19 22:24:27,674 INFO L226 Difference]: Without dead ends: 337 [2020-10-19 22:24:27,675 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 22:24:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-10-19 22:24:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-10-19 22:24:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-19 22:24:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 545 transitions. [2020-10-19 22:24:27,693 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 545 transitions. Word has length 99 [2020-10-19 22:24:27,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:27,695 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 545 transitions. [2020-10-19 22:24:27,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 545 transitions. [2020-10-19 22:24:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-19 22:24:27,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:27,698 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] [2020-10-19 22:24:27,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:24:27,698 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:27,699 INFO L82 PathProgramCache]: Analyzing trace with hash -651386898, now seen corresponding path program 1 times [2020-10-19 22:24:27,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:27,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505214628] [2020-10-19 22:24:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:27,775 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 22:24:27,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505214628] [2020-10-19 22:24:27,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:27,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:27,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229039671] [2020-10-19 22:24:27,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:27,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:27,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:27,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:27,778 INFO L87 Difference]: Start difference. First operand 335 states and 545 transitions. Second operand 3 states. [2020-10-19 22:24:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:27,978 INFO L93 Difference]: Finished difference Result 697 states and 1138 transitions. [2020-10-19 22:24:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:27,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 100 [2020-10-19 22:24:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:27,982 INFO L225 Difference]: With dead ends: 697 [2020-10-19 22:24:27,982 INFO L226 Difference]: Without dead ends: 370 [2020-10-19 22:24:27,983 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 22:24:27,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-19 22:24:28,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2020-10-19 22:24:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-19 22:24:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 587 transitions. [2020-10-19 22:24:28,003 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 587 transitions. Word has length 100 [2020-10-19 22:24:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:28,004 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 587 transitions. [2020-10-19 22:24:28,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:28,004 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 587 transitions. [2020-10-19 22:24:28,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-19 22:24:28,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:28,007 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] [2020-10-19 22:24:28,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:24:28,007 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:28,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:28,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1258189035, now seen corresponding path program 1 times [2020-10-19 22:24:28,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:28,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415736880] [2020-10-19 22:24:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:28,075 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 22:24:28,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415736880] [2020-10-19 22:24:28,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:28,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:28,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620677740] [2020-10-19 22:24:28,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:28,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:28,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:28,078 INFO L87 Difference]: Start difference. First operand 362 states and 587 transitions. Second operand 3 states. [2020-10-19 22:24:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:28,275 INFO L93 Difference]: Finished difference Result 724 states and 1175 transitions. [2020-10-19 22:24:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:28,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-10-19 22:24:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:28,278 INFO L225 Difference]: With dead ends: 724 [2020-10-19 22:24:28,278 INFO L226 Difference]: Without dead ends: 370 [2020-10-19 22:24:28,279 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 22:24:28,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-19 22:24:28,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2020-10-19 22:24:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-19 22:24:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 582 transitions. [2020-10-19 22:24:28,293 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 582 transitions. Word has length 101 [2020-10-19 22:24:28,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:28,293 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 582 transitions. [2020-10-19 22:24:28,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:28,294 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 582 transitions. [2020-10-19 22:24:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:24:28,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:28,295 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] [2020-10-19 22:24:28,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:24:28,296 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:28,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:28,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1027805126, now seen corresponding path program 1 times [2020-10-19 22:24:28,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:28,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228455675] [2020-10-19 22:24:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:28,356 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 22:24:28,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228455675] [2020-10-19 22:24:28,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:28,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:28,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528969089] [2020-10-19 22:24:28,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:28,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:28,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:28,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:28,358 INFO L87 Difference]: Start difference. First operand 362 states and 582 transitions. Second operand 3 states. [2020-10-19 22:24:28,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:28,503 INFO L93 Difference]: Finished difference Result 742 states and 1195 transitions. [2020-10-19 22:24:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:28,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 22:24:28,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:28,506 INFO L225 Difference]: With dead ends: 742 [2020-10-19 22:24:28,506 INFO L226 Difference]: Without dead ends: 388 [2020-10-19 22:24:28,507 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 22:24:28,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-19 22:24:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2020-10-19 22:24:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-19 22:24:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 611 transitions. [2020-10-19 22:24:28,524 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 611 transitions. Word has length 105 [2020-10-19 22:24:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:28,524 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 611 transitions. [2020-10-19 22:24:28,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 611 transitions. [2020-10-19 22:24:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:24:28,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:28,526 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] [2020-10-19 22:24:28,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:24:28,526 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:28,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1570072403, now seen corresponding path program 1 times [2020-10-19 22:24:28,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:28,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493431796] [2020-10-19 22:24:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:28,586 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 22:24:28,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493431796] [2020-10-19 22:24:28,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:28,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:28,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600561490] [2020-10-19 22:24:28,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:28,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:28,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:28,588 INFO L87 Difference]: Start difference. First operand 383 states and 611 transitions. Second operand 3 states. [2020-10-19 22:24:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:28,740 INFO L93 Difference]: Finished difference Result 763 states and 1218 transitions. [2020-10-19 22:24:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:28,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:24:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:28,745 INFO L225 Difference]: With dead ends: 763 [2020-10-19 22:24:28,745 INFO L226 Difference]: Without dead ends: 388 [2020-10-19 22:24:28,747 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 22:24:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-10-19 22:24:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 383. [2020-10-19 22:24:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2020-10-19 22:24:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 605 transitions. [2020-10-19 22:24:28,770 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 605 transitions. Word has length 106 [2020-10-19 22:24:28,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:28,770 INFO L481 AbstractCegarLoop]: Abstraction has 383 states and 605 transitions. [2020-10-19 22:24:28,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 605 transitions. [2020-10-19 22:24:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-19 22:24:28,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:28,773 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] [2020-10-19 22:24:28,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:24:28,774 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:28,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:28,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1383340250, now seen corresponding path program 1 times [2020-10-19 22:24:28,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:28,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056537938] [2020-10-19 22:24:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:28,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:28,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:29,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:24:29,016 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:24:29,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:24:29,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:29 BoogieIcfgContainer [2020-10-19 22:24:29,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:29,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:29,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:29,164 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:29,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:24" (3/4) ... [2020-10-19 22:24:29,168 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:24:29,397 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:29,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:29,400 INFO L168 Benchmark]: Toolchain (without parser) took 6410.16 ms. Allocated memory was 42.5 MB in the beginning and 88.6 MB in the end (delta: 46.1 MB). Free memory was 19.8 MB in the beginning and 25.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,401 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 31.5 MB. Free memory was 7.9 MB in the beginning and 7.8 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.00 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 19.0 MB in the beginning and 12.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.01 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 12.7 MB in the beginning and 25.7 MB in the end (delta: -13.0 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,403 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 23.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,405 INFO L168 Benchmark]: RCFGBuilder took 864.77 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 23.2 MB in the beginning and 22.4 MB in the end (delta: 797.2 kB). Peak memory consumption was 16.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,406 INFO L168 Benchmark]: TraceAbstraction took 4740.22 ms. Allocated memory was 47.2 MB in the beginning and 88.6 MB in the end (delta: 41.4 MB). Free memory was 22.0 MB in the beginning and 42.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,406 INFO L168 Benchmark]: Witness Printer took 233.20 ms. Allocated memory is still 88.6 MB. Free memory was 42.4 MB in the beginning and 25.9 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:29,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 31.5 MB. Free memory was 7.9 MB in the beginning and 7.8 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 450.00 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 19.0 MB in the beginning and 12.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 74.01 ms. Allocated memory was 43.0 MB in the beginning and 44.0 MB in the end (delta: 1.0 MB). Free memory was 12.7 MB in the beginning and 25.7 MB in the end (delta: -13.0 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.5 MB in the beginning and 23.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 864.77 ms. Allocated memory was 44.0 MB in the beginning and 47.2 MB in the end (delta: 3.1 MB). Free memory was 23.2 MB in the beginning and 22.4 MB in the end (delta: 797.2 kB). Peak memory consumption was 16.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4740.22 ms. Allocated memory was 47.2 MB in the beginning and 88.6 MB in the end (delta: 41.4 MB). Free memory was 22.0 MB in the beginning and 42.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. * Witness Printer took 233.20 ms. Allocated memory is still 88.6 MB. Free memory was 42.4 MB in the beginning and 25.9 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 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: [L614] int s ; [L615] int tmp ; [L619] 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 ; [L44] unsigned long l ; [L45] unsigned long Time ; [L46] unsigned long tmp ; [L47] int cb ; [L48] long num1 = __VERIFIER_nondet_long() ; [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 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 ; [L61] long tmp___8 = __VERIFIER_nondet_long() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int tmp___10 = __VERIFIER_nondet_int() ; [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] tmp = __VERIFIER_nondet_int() [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 + 12288) [L96] COND FALSE !(s__cert == 0) [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND TRUE s__state == 8464 [L273] s__shutdown = 0 [L274] ret = __VERIFIER_nondet_int() [L275] COND TRUE blastFlag == 0 [L276] blastFlag = 1 [L278] COND FALSE !(ret <= 0) [L281] got_new_session = 1 [L282] s__state = 8496 [L283] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND TRUE s__state == 8496 [L287] ret = __VERIFIER_nondet_int() [L288] COND TRUE blastFlag == 1 [L289] blastFlag = 2 [L295] COND FALSE !(ret <= 0) [L298] COND TRUE \read(s__hit) [L299] s__state = 8656 [L303] s__init_num = 0 [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND TRUE s__state == 8656 [L492] s__session__cipher = s__s3__tmp__new_cipher [L493] COND FALSE !(! tmp___9) [L497] ret = __VERIFIER_nondet_int() [L498] COND TRUE blastFlag == 2 [L499] blastFlag = 3 [L501] COND FALSE !(ret <= 0) [L504] s__state = 8672 [L505] s__init_num = 0 [L506] COND FALSE !(! tmp___10) [L581] COND FALSE !(! s__s3__tmp__reuse_message) [L598] skip = 0 [L100] COND TRUE 1 [L102] state = s__state [L103] COND FALSE !(s__state == 12292) [L106] COND FALSE !(s__state == 16384) [L109] COND FALSE !(s__state == 8192) [L112] COND FALSE !(s__state == 24576) [L115] COND FALSE !(s__state == 8195) [L118] COND FALSE !(s__state == 8480) [L121] COND FALSE !(s__state == 8481) [L124] COND FALSE !(s__state == 8482) [L127] COND FALSE !(s__state == 8464) [L130] COND FALSE !(s__state == 8465) [L133] COND FALSE !(s__state == 8466) [L136] COND FALSE !(s__state == 8496) [L139] COND FALSE !(s__state == 8497) [L142] COND FALSE !(s__state == 8512) [L145] COND FALSE !(s__state == 8513) [L148] COND FALSE !(s__state == 8528) [L151] COND FALSE !(s__state == 8529) [L154] COND FALSE !(s__state == 8544) [L157] COND FALSE !(s__state == 8545) [L160] COND FALSE !(s__state == 8560) [L163] COND FALSE !(s__state == 8561) [L166] COND FALSE !(s__state == 8448) [L169] COND FALSE !(s__state == 8576) [L172] COND FALSE !(s__state == 8577) [L175] COND FALSE !(s__state == 8592) [L178] COND FALSE !(s__state == 8593) [L181] COND FALSE !(s__state == 8608) [L184] COND FALSE !(s__state == 8609) [L187] COND FALSE !(s__state == 8640) [L190] COND FALSE !(s__state == 8641) [L193] COND FALSE !(s__state == 8656) [L196] COND FALSE !(s__state == 8657) [L199] COND TRUE s__state == 8672 [L513] ret = __VERIFIER_nondet_int() [L514] COND TRUE blastFlag == 3 [L3] __assert_fail("0", "s3_srvr_2.cil-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1835 SDtfs, 2038 SDslu, 248 SDs, 0 SdLazy, 1321 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 52 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1326 NumberOfCodeBlocks, 1326 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1191 ConstructedInterpolants, 0 QuantifiedInterpolants, 191664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 636/636 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...