./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.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/bitvector/s3_clnt_3.BV.c.cil-1a.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 c14635b48a1cad23828e85d86c9c53e48c3a7731 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:21:21,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:21:21,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:21:21,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:21:21,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:21:21,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:21:21,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:21:21,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:21:21,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:21:21,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:21:21,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:21:21,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:21:21,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:21:21,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:21:21,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:21:21,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:21:21,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:21:21,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:21:21,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:21:21,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:21:21,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:21:21,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:21:21,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:21:21,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:21:21,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:21:21,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:21:21,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:21:21,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:21:21,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:21:21,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:21:21,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:21:21,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:21:21,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:21:21,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:21:21,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:21:21,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:21:21,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:21:21,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:21:21,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:21:21,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:21:21,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:21:21,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:21:21,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:21:21,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:21:21,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:21:21,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:21:21,400 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:21:21,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:21:21,400 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:21:21,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:21:21,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:21:21,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:21:21,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:21:21,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:21:21,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:21:21,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:21:21,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:21:21,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:21:21,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:21:21,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:21:21,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:21:21,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:21:21,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:21:21,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:21,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:21:21,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:21:21,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:21:21,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:21:21,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:21:21,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:21:21,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:21:21,407 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 -> c14635b48a1cad23828e85d86c9c53e48c3a7731 [2020-10-19 22:21:21,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:21:21,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:21:21,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:21:21,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:21:21,619 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:21:21,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-10-19 22:21:21,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7588e999/ca81a64baf2640f7878a5a99d30f4894/FLAG9925b2623 [2020-10-19 22:21:22,219 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:21:22,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2020-10-19 22:21:22,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7588e999/ca81a64baf2640f7878a5a99d30f4894/FLAG9925b2623 [2020-10-19 22:21:22,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7588e999/ca81a64baf2640f7878a5a99d30f4894 [2020-10-19 22:21:22,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:21:22,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:21:22,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:22,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:21:22,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:21:22,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618dcad7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22, skipping insertion in model container [2020-10-19 22:21:22,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:21:22,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:21:22,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:22,834 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:21:22,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:22,902 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:21:22,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22 WrapperNode [2020-10-19 22:21:22,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:22,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:22,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:21:22,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:21:22,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:22,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:21:22,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:21:22,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:21:22,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:22,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:23,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... [2020-10-19 22:21:23,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:21:23,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:21:23,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:21:23,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:21:23,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:23,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:21:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:21:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:21:23,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:21:23,304 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:21:23,739 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-10-19 22:21:23,739 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-10-19 22:21:23,750 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:21:23,750 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:21:23,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:23 BoogieIcfgContainer [2020-10-19 22:21:23,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:21:23,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:21:23,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:21:23,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:21:23,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:21:22" (1/3) ... [2020-10-19 22:21:23,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3d3d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:23, skipping insertion in model container [2020-10-19 22:21:23,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:22" (2/3) ... [2020-10-19 22:21:23,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3d3d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:23, skipping insertion in model container [2020-10-19 22:21:23,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:23" (3/3) ... [2020-10-19 22:21:23,762 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2020-10-19 22:21:23,773 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:21:23,781 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:21:23,794 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:21:23,820 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:21:23,821 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:21:23,821 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:21:23,821 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:21:23,822 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:21:23,822 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:21:23,822 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:21:23,822 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:21:23,841 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-10-19 22:21:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-19 22:21:23,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:23,850 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] [2020-10-19 22:21:23,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash 259999105, now seen corresponding path program 1 times [2020-10-19 22:21:23,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:23,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513808767] [2020-10-19 22:21:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:24,055 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 22:21:24,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513808767] [2020-10-19 22:21:24,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:24,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:24,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965500677] [2020-10-19 22:21:24,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:24,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:24,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:24,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:24,080 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-10-19 22:21:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:24,274 INFO L93 Difference]: Finished difference Result 248 states and 424 transitions. [2020-10-19 22:21:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:24,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-19 22:21:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:24,289 INFO L225 Difference]: With dead ends: 248 [2020-10-19 22:21:24,289 INFO L226 Difference]: Without dead ends: 113 [2020-10-19 22:21:24,293 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 22:21:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-19 22:21:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-19 22:21:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-19 22:21:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 171 transitions. [2020-10-19 22:21:24,354 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 171 transitions. Word has length 25 [2020-10-19 22:21:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:24,355 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 171 transitions. [2020-10-19 22:21:24,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 171 transitions. [2020-10-19 22:21:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-19 22:21:24,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:24,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:24,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:21:24,358 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:24,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:24,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1138040513, now seen corresponding path program 1 times [2020-10-19 22:21:24,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:24,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278375041] [2020-10-19 22:21:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:24,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278375041] [2020-10-19 22:21:24,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:24,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:24,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063775116] [2020-10-19 22:21:24,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:24,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:24,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:24,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:24,492 INFO L87 Difference]: Start difference. First operand 113 states and 171 transitions. Second operand 3 states. [2020-10-19 22:21:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:24,678 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-10-19 22:21:24,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:24,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-19 22:21:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:24,681 INFO L225 Difference]: With dead ends: 233 [2020-10-19 22:21:24,681 INFO L226 Difference]: Without dead ends: 131 [2020-10-19 22:21:24,682 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 22:21:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-19 22:21:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2020-10-19 22:21:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-19 22:21:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 191 transitions. [2020-10-19 22:21:24,694 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 191 transitions. Word has length 37 [2020-10-19 22:21:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:24,695 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 191 transitions. [2020-10-19 22:21:24,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:24,695 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 191 transitions. [2020-10-19 22:21:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-19 22:21:24,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:24,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:24,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:21:24,698 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:24,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:24,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1126420040, now seen corresponding path program 1 times [2020-10-19 22:21:24,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:24,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766373596] [2020-10-19 22:21:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:24,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766373596] [2020-10-19 22:21:24,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:24,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:24,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224930198] [2020-10-19 22:21:24,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:24,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:24,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:24,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:24,807 INFO L87 Difference]: Start difference. First operand 128 states and 191 transitions. Second operand 3 states. [2020-10-19 22:21:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:24,828 INFO L93 Difference]: Finished difference Result 271 states and 400 transitions. [2020-10-19 22:21:24,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:24,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-19 22:21:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:24,830 INFO L225 Difference]: With dead ends: 271 [2020-10-19 22:21:24,830 INFO L226 Difference]: Without dead ends: 154 [2020-10-19 22:21:24,831 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 22:21:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-19 22:21:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-19 22:21:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-19 22:21:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2020-10-19 22:21:24,842 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 51 [2020-10-19 22:21:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:24,843 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2020-10-19 22:21:24,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2020-10-19 22:21:24,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-19 22:21:24,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:24,845 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:24,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:21:24,845 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:24,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:24,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1260433546, now seen corresponding path program 1 times [2020-10-19 22:21:24,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:24,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36527872] [2020-10-19 22:21:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:24,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36527872] [2020-10-19 22:21:24,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:24,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:24,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488372034] [2020-10-19 22:21:24,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:24,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:24,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:24,920 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand 3 states. [2020-10-19 22:21:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,067 INFO L93 Difference]: Finished difference Result 292 states and 435 transitions. [2020-10-19 22:21:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-19 22:21:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,069 INFO L225 Difference]: With dead ends: 292 [2020-10-19 22:21:25,069 INFO L226 Difference]: Without dead ends: 175 [2020-10-19 22:21:25,070 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 22:21:25,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-19 22:21:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 171. [2020-10-19 22:21:25,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-19 22:21:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2020-10-19 22:21:25,082 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 51 [2020-10-19 22:21:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,083 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2020-10-19 22:21:25,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,083 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2020-10-19 22:21:25,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:21:25,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:21:25,086 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,087 INFO L82 PathProgramCache]: Analyzing trace with hash -457628469, now seen corresponding path program 1 times [2020-10-19 22:21:25,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:25,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646673024] [2020-10-19 22:21:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:25,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646673024] [2020-10-19 22:21:25,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:25,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339205486] [2020-10-19 22:21:25,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:25,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,218 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 3 states. [2020-10-19 22:21:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,253 INFO L93 Difference]: Finished difference Result 436 states and 638 transitions. [2020-10-19 22:21:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:21:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,256 INFO L225 Difference]: With dead ends: 436 [2020-10-19 22:21:25,256 INFO L226 Difference]: Without dead ends: 302 [2020-10-19 22:21:25,257 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 22:21:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-19 22:21:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2020-10-19 22:21:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-19 22:21:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 435 transitions. [2020-10-19 22:21:25,296 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 435 transitions. Word has length 68 [2020-10-19 22:21:25,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,296 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 435 transitions. [2020-10-19 22:21:25,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 435 transitions. [2020-10-19 22:21:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-19 22:21:25,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,299 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:21:25,299 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,300 INFO L82 PathProgramCache]: Analyzing trace with hash 562572643, now seen corresponding path program 1 times [2020-10-19 22:21:25,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:25,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972627426] [2020-10-19 22:21:25,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:25,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972627426] [2020-10-19 22:21:25,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:25,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872292463] [2020-10-19 22:21:25,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:25,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,354 INFO L87 Difference]: Start difference. First operand 302 states and 435 transitions. Second operand 3 states. [2020-10-19 22:21:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,381 INFO L93 Difference]: Finished difference Result 588 states and 849 transitions. [2020-10-19 22:21:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-10-19 22:21:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,384 INFO L225 Difference]: With dead ends: 588 [2020-10-19 22:21:25,385 INFO L226 Difference]: Without dead ends: 323 [2020-10-19 22:21:25,386 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 22:21:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-19 22:21:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-10-19 22:21:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-10-19 22:21:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 462 transitions. [2020-10-19 22:21:25,397 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 462 transitions. Word has length 69 [2020-10-19 22:21:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,398 INFO L481 AbstractCegarLoop]: Abstraction has 323 states and 462 transitions. [2020-10-19 22:21:25,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,398 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 462 transitions. [2020-10-19 22:21:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-19 22:21:25,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,400 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:21:25,400 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,401 INFO L82 PathProgramCache]: Analyzing trace with hash 777921003, now seen corresponding path program 1 times [2020-10-19 22:21:25,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:25,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187989027] [2020-10-19 22:21:25,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:21:25,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187989027] [2020-10-19 22:21:25,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:25,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942665848] [2020-10-19 22:21:25,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:25,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,474 INFO L87 Difference]: Start difference. First operand 323 states and 462 transitions. Second operand 3 states. [2020-10-19 22:21:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,636 INFO L93 Difference]: Finished difference Result 657 states and 958 transitions. [2020-10-19 22:21:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-10-19 22:21:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,639 INFO L225 Difference]: With dead ends: 657 [2020-10-19 22:21:25,639 INFO L226 Difference]: Without dead ends: 371 [2020-10-19 22:21:25,640 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 22:21:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-10-19 22:21:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 365. [2020-10-19 22:21:25,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2020-10-19 22:21:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2020-10-19 22:21:25,652 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 514 transitions. Word has length 86 [2020-10-19 22:21:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,652 INFO L481 AbstractCegarLoop]: Abstraction has 365 states and 514 transitions. [2020-10-19 22:21:25,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 514 transitions. [2020-10-19 22:21:25,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:21:25,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,654 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:21:25,654 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,655 INFO L82 PathProgramCache]: Analyzing trace with hash -97425693, now seen corresponding path program 1 times [2020-10-19 22:21:25,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:25,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51743004] [2020-10-19 22:21:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:21:25,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51743004] [2020-10-19 22:21:25,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:25,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572132977] [2020-10-19 22:21:25,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:25,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,729 INFO L87 Difference]: Start difference. First operand 365 states and 514 transitions. Second operand 3 states. [2020-10-19 22:21:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,771 INFO L93 Difference]: Finished difference Result 520 states and 737 transitions. [2020-10-19 22:21:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:21:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,776 INFO L225 Difference]: With dead ends: 520 [2020-10-19 22:21:25,776 INFO L226 Difference]: Without dead ends: 518 [2020-10-19 22:21:25,776 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 22:21:25,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-10-19 22:21:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-10-19 22:21:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-19 22:21:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 735 transitions. [2020-10-19 22:21:25,802 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 735 transitions. Word has length 106 [2020-10-19 22:21:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,802 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 735 transitions. [2020-10-19 22:21:25,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,803 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 735 transitions. [2020-10-19 22:21:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-19 22:21:25,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,805 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:21:25,805 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,806 INFO L82 PathProgramCache]: Analyzing trace with hash -833396868, now seen corresponding path program 1 times [2020-10-19 22:21:25,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:25,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037024479] [2020-10-19 22:21:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,861 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:21:25,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037024479] [2020-10-19 22:21:25,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:25,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524396672] [2020-10-19 22:21:25,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:25,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,865 INFO L87 Difference]: Start difference. First operand 518 states and 735 transitions. Second operand 3 states. [2020-10-19 22:21:26,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:26,063 INFO L93 Difference]: Finished difference Result 1149 states and 1685 transitions. [2020-10-19 22:21:26,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:26,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-10-19 22:21:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:26,068 INFO L225 Difference]: With dead ends: 1149 [2020-10-19 22:21:26,068 INFO L226 Difference]: Without dead ends: 665 [2020-10-19 22:21:26,069 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 22:21:26,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-10-19 22:21:26,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 641. [2020-10-19 22:21:26,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-10-19 22:21:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 933 transitions. [2020-10-19 22:21:26,087 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 933 transitions. Word has length 124 [2020-10-19 22:21:26,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:26,088 INFO L481 AbstractCegarLoop]: Abstraction has 641 states and 933 transitions. [2020-10-19 22:21:26,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:26,088 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 933 transitions. [2020-10-19 22:21:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-19 22:21:26,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:26,091 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 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] [2020-10-19 22:21:26,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:21:26,091 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:26,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1117892099, now seen corresponding path program 1 times [2020-10-19 22:21:26,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:26,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620775260] [2020-10-19 22:21:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-19 22:21:26,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620775260] [2020-10-19 22:21:26,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:26,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:26,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201544072] [2020-10-19 22:21:26,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:26,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:26,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:26,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,295 INFO L87 Difference]: Start difference. First operand 641 states and 933 transitions. Second operand 3 states. [2020-10-19 22:21:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:26,551 INFO L93 Difference]: Finished difference Result 1523 states and 2284 transitions. [2020-10-19 22:21:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:26,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-10-19 22:21:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:26,559 INFO L225 Difference]: With dead ends: 1523 [2020-10-19 22:21:26,559 INFO L226 Difference]: Without dead ends: 868 [2020-10-19 22:21:26,560 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 22:21:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-10-19 22:21:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 830. [2020-10-19 22:21:26,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2020-10-19 22:21:26,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1185 transitions. [2020-10-19 22:21:26,594 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1185 transitions. Word has length 150 [2020-10-19 22:21:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:26,595 INFO L481 AbstractCegarLoop]: Abstraction has 830 states and 1185 transitions. [2020-10-19 22:21:26,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1185 transitions. [2020-10-19 22:21:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-19 22:21:26,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:26,600 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:26,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:21:26,600 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:26,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:26,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1900103119, now seen corresponding path program 1 times [2020-10-19 22:21:26,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:26,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404560693] [2020-10-19 22:21:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:26,714 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2020-10-19 22:21:26,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404560693] [2020-10-19 22:21:26,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:26,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:26,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845842374] [2020-10-19 22:21:26,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:26,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:26,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:26,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,718 INFO L87 Difference]: Start difference. First operand 830 states and 1185 transitions. Second operand 3 states. [2020-10-19 22:21:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:26,981 INFO L93 Difference]: Finished difference Result 1779 states and 2561 transitions. [2020-10-19 22:21:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:26,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-19 22:21:26,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:26,989 INFO L225 Difference]: With dead ends: 1779 [2020-10-19 22:21:26,989 INFO L226 Difference]: Without dead ends: 941 [2020-10-19 22:21:26,991 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 22:21:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 941 states. [2020-10-19 22:21:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 941 to 905. [2020-10-19 22:21:27,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-10-19 22:21:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1281 transitions. [2020-10-19 22:21:27,028 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1281 transitions. Word has length 171 [2020-10-19 22:21:27,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:27,029 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 1281 transitions. [2020-10-19 22:21:27,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1281 transitions. [2020-10-19 22:21:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-19 22:21:27,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:27,032 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:27,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:21:27,032 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:27,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:27,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1650023748, now seen corresponding path program 1 times [2020-10-19 22:21:27,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:27,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081175710] [2020-10-19 22:21:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-19 22:21:27,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081175710] [2020-10-19 22:21:27,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:27,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:27,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170340997] [2020-10-19 22:21:27,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:27,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:27,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:27,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:27,135 INFO L87 Difference]: Start difference. First operand 905 states and 1281 transitions. Second operand 3 states. [2020-10-19 22:21:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:27,329 INFO L93 Difference]: Finished difference Result 1929 states and 2750 transitions. [2020-10-19 22:21:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:27,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-10-19 22:21:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:27,334 INFO L225 Difference]: With dead ends: 1929 [2020-10-19 22:21:27,335 INFO L226 Difference]: Without dead ends: 1022 [2020-10-19 22:21:27,336 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 22:21:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-10-19 22:21:27,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 989. [2020-10-19 22:21:27,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2020-10-19 22:21:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1392 transitions. [2020-10-19 22:21:27,362 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1392 transitions. Word has length 195 [2020-10-19 22:21:27,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:27,362 INFO L481 AbstractCegarLoop]: Abstraction has 989 states and 1392 transitions. [2020-10-19 22:21:27,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1392 transitions. [2020-10-19 22:21:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-19 22:21:27,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:27,366 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:27,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:21:27,366 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:27,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1428789822, now seen corresponding path program 1 times [2020-10-19 22:21:27,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:27,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900606176] [2020-10-19 22:21:27,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2020-10-19 22:21:27,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900606176] [2020-10-19 22:21:27,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:27,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:27,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286788552] [2020-10-19 22:21:27,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:27,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:27,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:27,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:27,447 INFO L87 Difference]: Start difference. First operand 989 states and 1392 transitions. Second operand 3 states. [2020-10-19 22:21:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:27,675 INFO L93 Difference]: Finished difference Result 2097 states and 2975 transitions. [2020-10-19 22:21:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:27,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-10-19 22:21:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:27,684 INFO L225 Difference]: With dead ends: 2097 [2020-10-19 22:21:27,684 INFO L226 Difference]: Without dead ends: 1118 [2020-10-19 22:21:27,686 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 22:21:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-19 22:21:27,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1082. [2020-10-19 22:21:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-10-19 22:21:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1524 transitions. [2020-10-19 22:21:27,725 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1524 transitions. Word has length 195 [2020-10-19 22:21:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:27,726 INFO L481 AbstractCegarLoop]: Abstraction has 1082 states and 1524 transitions. [2020-10-19 22:21:27,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1524 transitions. [2020-10-19 22:21:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-19 22:21:27,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:27,731 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:27,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:21:27,732 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:27,732 INFO L82 PathProgramCache]: Analyzing trace with hash -390571940, now seen corresponding path program 1 times [2020-10-19 22:21:27,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:27,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637097314] [2020-10-19 22:21:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 22:21:27,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637097314] [2020-10-19 22:21:27,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:27,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:27,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067760275] [2020-10-19 22:21:27,909 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:27,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:27,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:27,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:27,910 INFO L87 Difference]: Start difference. First operand 1082 states and 1524 transitions. Second operand 3 states. [2020-10-19 22:21:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:27,997 INFO L93 Difference]: Finished difference Result 3169 states and 4471 transitions. [2020-10-19 22:21:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:27,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-10-19 22:21:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:28,013 INFO L225 Difference]: With dead ends: 3169 [2020-10-19 22:21:28,013 INFO L226 Difference]: Without dead ends: 2124 [2020-10-19 22:21:28,016 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 22:21:28,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2020-10-19 22:21:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 2122. [2020-10-19 22:21:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2020-10-19 22:21:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2992 transitions. [2020-10-19 22:21:28,091 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2992 transitions. Word has length 225 [2020-10-19 22:21:28,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:28,092 INFO L481 AbstractCegarLoop]: Abstraction has 2122 states and 2992 transitions. [2020-10-19 22:21:28,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:28,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2992 transitions. [2020-10-19 22:21:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-19 22:21:28,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:28,101 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:28,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:21:28,102 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:28,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:28,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1606725666, now seen corresponding path program 1 times [2020-10-19 22:21:28,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:28,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412844137] [2020-10-19 22:21:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2020-10-19 22:21:28,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412844137] [2020-10-19 22:21:28,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:28,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:28,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046904417] [2020-10-19 22:21:28,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:28,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:28,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:28,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:28,242 INFO L87 Difference]: Start difference. First operand 2122 states and 2992 transitions. Second operand 3 states. [2020-10-19 22:21:28,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:28,536 INFO L93 Difference]: Finished difference Result 4513 states and 6403 transitions. [2020-10-19 22:21:28,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:28,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-10-19 22:21:28,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:28,551 INFO L225 Difference]: With dead ends: 4513 [2020-10-19 22:21:28,551 INFO L226 Difference]: Without dead ends: 2398 [2020-10-19 22:21:28,556 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 22:21:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2020-10-19 22:21:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2332. [2020-10-19 22:21:28,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2332 states. [2020-10-19 22:21:28,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 3304 transitions. [2020-10-19 22:21:28,693 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 3304 transitions. Word has length 225 [2020-10-19 22:21:28,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:28,694 INFO L481 AbstractCegarLoop]: Abstraction has 2332 states and 3304 transitions. [2020-10-19 22:21:28,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 3304 transitions. [2020-10-19 22:21:28,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-19 22:21:28,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:28,703 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:28,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:21:28,704 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:28,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:28,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1762482343, now seen corresponding path program 1 times [2020-10-19 22:21:28,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:28,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922470300] [2020-10-19 22:21:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2020-10-19 22:21:28,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922470300] [2020-10-19 22:21:28,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:28,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:28,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166341490] [2020-10-19 22:21:28,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:28,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:28,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:28,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:28,904 INFO L87 Difference]: Start difference. First operand 2332 states and 3304 transitions. Second operand 3 states. [2020-10-19 22:21:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:29,119 INFO L93 Difference]: Finished difference Result 4693 states and 6637 transitions. [2020-10-19 22:21:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:29,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2020-10-19 22:21:29,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:29,131 INFO L225 Difference]: With dead ends: 4693 [2020-10-19 22:21:29,131 INFO L226 Difference]: Without dead ends: 2380 [2020-10-19 22:21:29,134 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 22:21:29,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2020-10-19 22:21:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2314. [2020-10-19 22:21:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2020-10-19 22:21:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3250 transitions. [2020-10-19 22:21:29,196 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3250 transitions. Word has length 260 [2020-10-19 22:21:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:29,197 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 3250 transitions. [2020-10-19 22:21:29,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3250 transitions. [2020-10-19 22:21:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-19 22:21:29,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:29,203 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:29,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 22:21:29,204 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:29,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:29,204 INFO L82 PathProgramCache]: Analyzing trace with hash 357446499, now seen corresponding path program 1 times [2020-10-19 22:21:29,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:29,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176032888] [2020-10-19 22:21:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-10-19 22:21:29,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176032888] [2020-10-19 22:21:29,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:29,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:29,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757903810] [2020-10-19 22:21:29,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:29,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:29,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:29,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:29,478 INFO L87 Difference]: Start difference. First operand 2314 states and 3250 transitions. Second operand 3 states. [2020-10-19 22:21:29,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:29,571 INFO L93 Difference]: Finished difference Result 6879 states and 9664 transitions. [2020-10-19 22:21:29,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:29,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-10-19 22:21:29,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:29,598 INFO L225 Difference]: With dead ends: 6879 [2020-10-19 22:21:29,599 INFO L226 Difference]: Without dead ends: 4602 [2020-10-19 22:21:29,603 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 22:21:29,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2020-10-19 22:21:29,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4600. [2020-10-19 22:21:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-10-19 22:21:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6444 transitions. [2020-10-19 22:21:29,762 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6444 transitions. Word has length 270 [2020-10-19 22:21:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:29,763 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6444 transitions. [2020-10-19 22:21:29,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6444 transitions. [2020-10-19 22:21:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-19 22:21:29,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:29,790 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:29,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 22:21:29,791 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:29,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:29,792 INFO L82 PathProgramCache]: Analyzing trace with hash 259987815, now seen corresponding path program 1 times [2020-10-19 22:21:29,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:29,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112608623] [2020-10-19 22:21:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:29,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112608623] [2020-10-19 22:21:29,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:29,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:29,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218071804] [2020-10-19 22:21:29,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:29,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:29,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:29,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:29,923 INFO L87 Difference]: Start difference. First operand 4600 states and 6444 transitions. Second operand 3 states. [2020-10-19 22:21:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:30,262 INFO L93 Difference]: Finished difference Result 9242 states and 12935 transitions. [2020-10-19 22:21:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:30,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-10-19 22:21:30,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:30,286 INFO L225 Difference]: With dead ends: 9242 [2020-10-19 22:21:30,286 INFO L226 Difference]: Without dead ends: 4708 [2020-10-19 22:21:30,292 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 22:21:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4708 states. [2020-10-19 22:21:30,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4708 to 4600. [2020-10-19 22:21:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2020-10-19 22:21:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6336 transitions. [2020-10-19 22:21:30,423 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6336 transitions. Word has length 270 [2020-10-19 22:21:30,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:30,423 INFO L481 AbstractCegarLoop]: Abstraction has 4600 states and 6336 transitions. [2020-10-19 22:21:30,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6336 transitions. [2020-10-19 22:21:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-19 22:21:30,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:30,434 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:30,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 22:21:30,434 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:30,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1955386571, now seen corresponding path program 1 times [2020-10-19 22:21:30,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:30,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654609979] [2020-10-19 22:21:30,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-19 22:21:30,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654609979] [2020-10-19 22:21:30,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:30,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:30,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835993931] [2020-10-19 22:21:30,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:30,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:30,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:30,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:30,569 INFO L87 Difference]: Start difference. First operand 4600 states and 6336 transitions. Second operand 3 states. [2020-10-19 22:21:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:31,085 INFO L93 Difference]: Finished difference Result 9728 states and 13289 transitions. [2020-10-19 22:21:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:31,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2020-10-19 22:21:31,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:31,114 INFO L225 Difference]: With dead ends: 9728 [2020-10-19 22:21:31,114 INFO L226 Difference]: Without dead ends: 5194 [2020-10-19 22:21:31,120 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 22:21:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2020-10-19 22:21:31,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 4774. [2020-10-19 22:21:31,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4774 states. [2020-10-19 22:21:31,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 6570 transitions. [2020-10-19 22:21:31,329 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 6570 transitions. Word has length 297 [2020-10-19 22:21:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:31,330 INFO L481 AbstractCegarLoop]: Abstraction has 4774 states and 6570 transitions. [2020-10-19 22:21:31,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:31,330 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 6570 transitions. [2020-10-19 22:21:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-19 22:21:31,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:31,351 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:31,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 22:21:31,351 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:31,352 INFO L82 PathProgramCache]: Analyzing trace with hash -950226577, now seen corresponding path program 1 times [2020-10-19 22:21:31,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:31,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107489006] [2020-10-19 22:21:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-19 22:21:31,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107489006] [2020-10-19 22:21:31,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:31,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:31,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507074640] [2020-10-19 22:21:31,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:31,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:31,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:31,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:31,542 INFO L87 Difference]: Start difference. First operand 4774 states and 6570 transitions. Second operand 3 states. [2020-10-19 22:21:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:31,762 INFO L93 Difference]: Finished difference Result 9806 states and 13379 transitions. [2020-10-19 22:21:31,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:31,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-10-19 22:21:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:31,777 INFO L225 Difference]: With dead ends: 9806 [2020-10-19 22:21:31,778 INFO L226 Difference]: Without dead ends: 4594 [2020-10-19 22:21:31,785 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 22:21:31,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2020-10-19 22:21:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4576. [2020-10-19 22:21:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4576 states. [2020-10-19 22:21:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 6276 transitions. [2020-10-19 22:21:31,935 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 6276 transitions. Word has length 298 [2020-10-19 22:21:31,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:31,936 INFO L481 AbstractCegarLoop]: Abstraction has 4576 states and 6276 transitions. [2020-10-19 22:21:31,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 6276 transitions. [2020-10-19 22:21:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-19 22:21:31,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:31,946 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:31,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 22:21:31,947 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:31,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 977282003, now seen corresponding path program 1 times [2020-10-19 22:21:31,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:31,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131323756] [2020-10-19 22:21:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:32,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131323756] [2020-10-19 22:21:32,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659663359] [2020-10-19 22:21:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:32,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:32,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2020-10-19 22:21:32,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:21:32,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:21:32,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732778172] [2020-10-19 22:21:32,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:32,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:32,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:32,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:21:32,572 INFO L87 Difference]: Start difference. First operand 4576 states and 6276 transitions. Second operand 3 states. [2020-10-19 22:21:32,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:32,645 INFO L93 Difference]: Finished difference Result 6867 states and 9400 transitions. [2020-10-19 22:21:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:32,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-10-19 22:21:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:32,655 INFO L225 Difference]: With dead ends: 6867 [2020-10-19 22:21:32,656 INFO L226 Difference]: Without dead ends: 4578 [2020-10-19 22:21:32,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:21:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4578 states. [2020-10-19 22:21:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4578 to 4564. [2020-10-19 22:21:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2020-10-19 22:21:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6240 transitions. [2020-10-19 22:21:32,795 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6240 transitions. Word has length 308 [2020-10-19 22:21:32,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:32,796 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 6240 transitions. [2020-10-19 22:21:32,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:32,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6240 transitions. [2020-10-19 22:21:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-10-19 22:21:32,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:32,811 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:33,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-19 22:21:33,025 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:33,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:33,026 INFO L82 PathProgramCache]: Analyzing trace with hash -828156331, now seen corresponding path program 1 times [2020-10-19 22:21:33,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:33,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490707492] [2020-10-19 22:21:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:33,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490707492] [2020-10-19 22:21:33,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510951670] [2020-10-19 22:21:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:33,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:33,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:33,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:33,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:21:33,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772775505] [2020-10-19 22:21:33,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:33,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:33,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:33,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:33,422 INFO L87 Difference]: Start difference. First operand 4564 states and 6240 transitions. Second operand 4 states. [2020-10-19 22:21:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:34,022 INFO L93 Difference]: Finished difference Result 8076 states and 11149 transitions. [2020-10-19 22:21:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:21:34,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-10-19 22:21:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:34,040 INFO L225 Difference]: With dead ends: 8076 [2020-10-19 22:21:34,040 INFO L226 Difference]: Without dead ends: 5679 [2020-10-19 22:21:34,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:21:34,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2020-10-19 22:21:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 4758. [2020-10-19 22:21:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4758 states. [2020-10-19 22:21:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4758 states to 4758 states and 6530 transitions. [2020-10-19 22:21:34,235 INFO L78 Accepts]: Start accepts. Automaton has 4758 states and 6530 transitions. Word has length 308 [2020-10-19 22:21:34,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:34,236 INFO L481 AbstractCegarLoop]: Abstraction has 4758 states and 6530 transitions. [2020-10-19 22:21:34,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:34,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4758 states and 6530 transitions. [2020-10-19 22:21:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-19 22:21:34,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:34,254 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:34,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:34,469 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:34,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:34,471 INFO L82 PathProgramCache]: Analyzing trace with hash 105807153, now seen corresponding path program 1 times [2020-10-19 22:21:34,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:34,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366199841] [2020-10-19 22:21:34,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:34,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366199841] [2020-10-19 22:21:34,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970166561] [2020-10-19 22:21:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:34,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:34,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 472 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2020-10-19 22:21:35,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:35,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:21:35,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768095079] [2020-10-19 22:21:35,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:35,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:35,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:35,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:35,166 INFO L87 Difference]: Start difference. First operand 4758 states and 6530 transitions. Second operand 4 states. [2020-10-19 22:21:35,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:35,523 INFO L93 Difference]: Finished difference Result 6043 states and 8330 transitions. [2020-10-19 22:21:35,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:35,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2020-10-19 22:21:35,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:35,533 INFO L225 Difference]: With dead ends: 6043 [2020-10-19 22:21:35,533 INFO L226 Difference]: Without dead ends: 2460 [2020-10-19 22:21:35,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:21:35,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2460 states. [2020-10-19 22:21:35,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2460 to 2460. [2020-10-19 22:21:35,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2460 states. [2020-10-19 22:21:35,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3389 transitions. [2020-10-19 22:21:35,643 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3389 transitions. Word has length 309 [2020-10-19 22:21:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:35,643 INFO L481 AbstractCegarLoop]: Abstraction has 2460 states and 3389 transitions. [2020-10-19 22:21:35,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3389 transitions. [2020-10-19 22:21:35,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-19 22:21:35,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:35,658 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:21:35,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-19 22:21:35,871 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:35,875 INFO L82 PathProgramCache]: Analyzing trace with hash 2136036892, now seen corresponding path program 1 times [2020-10-19 22:21:35,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:35,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879570376] [2020-10-19 22:21:35,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-19 22:21:36,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879570376] [2020-10-19 22:21:36,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505269857] [2020-10-19 22:21:36,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:36,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:36,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 649 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2020-10-19 22:21:36,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:36,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:21:36,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981466827] [2020-10-19 22:21:36,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:36,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:36,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:36,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:36,579 INFO L87 Difference]: Start difference. First operand 2460 states and 3389 transitions. Second operand 4 states. [2020-10-19 22:21:37,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:37,008 INFO L93 Difference]: Finished difference Result 3515 states and 4790 transitions. [2020-10-19 22:21:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:37,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2020-10-19 22:21:37,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:37,010 INFO L225 Difference]: With dead ends: 3515 [2020-10-19 22:21:37,010 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:21:37,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:21:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:21:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:21:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:21:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:21:37,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 334 [2020-10-19 22:21:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:37,018 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:21:37,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:21:37,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:21:37,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:21:37,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:21:37,630 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 61 [2020-10-19 22:21:37,916 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 23 [2020-10-19 22:21:38,189 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 10 [2020-10-19 22:21:38,731 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2020-10-19 22:21:38,777 INFO L274 CegarLoopResult]: For program point L465(lines 465 471) no Hoare annotation was computed. [2020-10-19 22:21:38,777 INFO L277 CegarLoopResult]: At program point L201(lines 200 541) the Hoare annotation is: true [2020-10-19 22:21:38,778 INFO L270 CegarLoopResult]: At program point L135(lines 131 564) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:21:38,778 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 22:21:38,778 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:21:38,778 INFO L274 CegarLoopResult]: For program point L235(lines 235 240) no Hoare annotation was computed. [2020-10-19 22:21:38,778 INFO L277 CegarLoopResult]: At program point L632(lines 624 634) the Hoare annotation is: true [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L302(lines 302 306) no Hoare annotation was computed. [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L170(lines 170 551) no Hoare annotation was computed. [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L137(lines 137 562) no Hoare annotation was computed. [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L104(lines 104 573) no Hoare annotation was computed. [2020-10-19 22:21:38,779 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-10-19 22:21:38,780 INFO L274 CegarLoopResult]: For program point L435-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,780 INFO L277 CegarLoopResult]: At program point L204(lines 203 540) the Hoare annotation is: true [2020-10-19 22:21:38,781 INFO L270 CegarLoopResult]: At program point L171(lines 167 552) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) [2020-10-19 22:21:38,781 INFO L270 CegarLoopResult]: At program point L105(lines 104 573) the Hoare annotation is: (let ((.cse0 (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0))) [2020-10-19 22:21:38,782 INFO L274 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-10-19 22:21:38,782 INFO L274 CegarLoopResult]: For program point L404(lines 404 409) no Hoare annotation was computed. [2020-10-19 22:21:38,782 INFO L274 CegarLoopResult]: For program point L404-2(lines 404 409) no Hoare annotation was computed. [2020-10-19 22:21:38,782 INFO L274 CegarLoopResult]: For program point L173(lines 173 550) no Hoare annotation was computed. [2020-10-19 22:21:38,784 INFO L274 CegarLoopResult]: For program point L140(lines 140 561) no Hoare annotation was computed. [2020-10-19 22:21:38,784 INFO L274 CegarLoopResult]: For program point L107(lines 107 572) no Hoare annotation was computed. [2020-10-19 22:21:38,785 INFO L270 CegarLoopResult]: At program point L141(lines 137 562) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:21:38,786 INFO L270 CegarLoopResult]: At program point L538(lines 101 604) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse5 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse2 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (<= ULTIMATE.start_ssl3_connect_~s__state~0 3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse0 (not .cse5) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse1 .cse2 .cse4 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0) .cse5) (and .cse2 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)))) [2020-10-19 22:21:38,786 INFO L274 CegarLoopResult]: For program point L76(lines 76 84) no Hoare annotation was computed. [2020-10-19 22:21:38,786 INFO L277 CegarLoopResult]: At program point L605(lines 100 606) the Hoare annotation is: true [2020-10-19 22:21:38,786 INFO L274 CegarLoopResult]: For program point L176(lines 176 549) no Hoare annotation was computed. [2020-10-19 22:21:38,787 INFO L274 CegarLoopResult]: For program point L143(lines 143 560) no Hoare annotation was computed. [2020-10-19 22:21:38,787 INFO L274 CegarLoopResult]: For program point L110(lines 110 571) no Hoare annotation was computed. [2020-10-19 22:21:38,787 INFO L274 CegarLoopResult]: For program point L375(lines 375 379) no Hoare annotation was computed. [2020-10-19 22:21:38,787 INFO L274 CegarLoopResult]: For program point L375-2(lines 375 379) no Hoare annotation was computed. [2020-10-19 22:21:38,788 INFO L270 CegarLoopResult]: At program point L210(lines 107 572) the Hoare annotation is: (or (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0))) [2020-10-19 22:21:38,788 INFO L270 CegarLoopResult]: At program point L177(lines 173 550) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512)) [2020-10-19 22:21:38,788 INFO L274 CegarLoopResult]: For program point L574(lines 574 602) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L79-2(lines 76 84) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L575(lines 575 599) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L509-1(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L344(lines 344 349) no Hoare annotation was computed. [2020-10-19 22:21:38,789 INFO L274 CegarLoopResult]: For program point L278(lines 278 282) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 325) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L179(lines 179 548) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L146(lines 146 559) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L113(lines 113 570) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L609(lines 609 613) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L576(lines 576 585) no Hoare annotation was computed. [2020-10-19 22:21:38,790 INFO L274 CegarLoopResult]: For program point L609-2(lines 609 613) no Hoare annotation was computed. [2020-10-19 22:21:38,791 INFO L274 CegarLoopResult]: For program point L576-2(lines 575 597) no Hoare annotation was computed. [2020-10-19 22:21:38,791 INFO L270 CegarLoopResult]: At program point L147(lines 143 560) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448)) [2020-10-19 22:21:38,791 INFO L274 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-10-19 22:21:38,791 INFO L274 CegarLoopResult]: For program point L446(lines 446 451) no Hoare annotation was computed. [2020-10-19 22:21:38,792 INFO L274 CegarLoopResult]: For program point L215(lines 215 219) no Hoare annotation was computed. [2020-10-19 22:21:38,792 INFO L274 CegarLoopResult]: For program point L182(lines 182 547) no Hoare annotation was computed. [2020-10-19 22:21:38,792 INFO L274 CegarLoopResult]: For program point L149(lines 149 558) no Hoare annotation was computed. [2020-10-19 22:21:38,792 INFO L274 CegarLoopResult]: For program point L215-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,793 INFO L274 CegarLoopResult]: For program point L116(lines 116 569) no Hoare annotation was computed. [2020-10-19 22:21:38,793 INFO L274 CegarLoopResult]: For program point L480(lines 480 484) no Hoare annotation was computed. [2020-10-19 22:21:38,793 INFO L274 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-10-19 22:21:38,793 INFO L274 CegarLoopResult]: For program point L315-2(lines 313 325) no Hoare annotation was computed. [2020-10-19 22:21:38,794 INFO L270 CegarLoopResult]: At program point L183(lines 179 548) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528) (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) [2020-10-19 22:21:38,794 INFO L274 CegarLoopResult]: For program point L514-1(lines 514 518) no Hoare annotation was computed. [2020-10-19 22:21:38,794 INFO L274 CegarLoopResult]: For program point L415(lines 415 419) no Hoare annotation was computed. [2020-10-19 22:21:38,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:21:38,795 INFO L274 CegarLoopResult]: For program point L251(lines 251 256) no Hoare annotation was computed. [2020-10-19 22:21:38,795 INFO L274 CegarLoopResult]: For program point L185(lines 185 546) no Hoare annotation was computed. [2020-10-19 22:21:38,795 INFO L274 CegarLoopResult]: For program point L152(lines 152 557) no Hoare annotation was computed. [2020-10-19 22:21:38,796 INFO L274 CegarLoopResult]: For program point L119(lines 119 568) no Hoare annotation was computed. [2020-10-19 22:21:38,796 INFO L274 CegarLoopResult]: For program point L86(lines 86 94) no Hoare annotation was computed. [2020-10-19 22:21:38,796 INFO L274 CegarLoopResult]: For program point L86-1(lines 68 622) no Hoare annotation was computed. [2020-10-19 22:21:38,796 INFO L270 CegarLoopResult]: At program point L153(lines 149 558) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464)) [2020-10-19 22:21:38,797 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-10-19 22:21:38,797 INFO L274 CegarLoopResult]: For program point L485(lines 485 489) no Hoare annotation was computed. [2020-10-19 22:21:38,797 INFO L274 CegarLoopResult]: For program point L485-2(lines 485 489) no Hoare annotation was computed. [2020-10-19 22:21:38,798 INFO L274 CegarLoopResult]: For program point L287(lines 287 295) no Hoare annotation was computed. [2020-10-19 22:21:38,798 INFO L274 CegarLoopResult]: For program point L188(lines 188 545) no Hoare annotation was computed. [2020-10-19 22:21:38,798 INFO L274 CegarLoopResult]: For program point L155(lines 155 556) no Hoare annotation was computed. [2020-10-19 22:21:38,798 INFO L274 CegarLoopResult]: For program point L122(lines 122 567) no Hoare annotation was computed. [2020-10-19 22:21:38,799 INFO L274 CegarLoopResult]: For program point L387(lines 387 391) no Hoare annotation was computed. [2020-10-19 22:21:38,799 INFO L274 CegarLoopResult]: For program point L354(lines 354 358) no Hoare annotation was computed. [2020-10-19 22:21:38,799 INFO L270 CegarLoopResult]: At program point L189(lines 185 546) the Hoare annotation is: (let ((.cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4))) (or (and (not (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) .cse0 .cse1) (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560) .cse0 .cse1))) [2020-10-19 22:21:38,800 INFO L270 CegarLoopResult]: At program point L123(lines 119 568) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) .cse0 .cse1))) [2020-10-19 22:21:38,800 INFO L270 CegarLoopResult]: At program point L355(lines 68 622) the Hoare annotation is: false [2020-10-19 22:21:38,800 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:21:38,800 INFO L277 CegarLoopResult]: At program point L620(lines 68 622) the Hoare annotation is: true [2020-10-19 22:21:38,801 INFO L274 CegarLoopResult]: For program point L587(lines 587 593) no Hoare annotation was computed. [2020-10-19 22:21:38,801 INFO L274 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-10-19 22:21:38,802 INFO L274 CegarLoopResult]: For program point L521-2(lines 521 525) no Hoare annotation was computed. [2020-10-19 22:21:38,802 INFO L274 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-10-19 22:21:38,802 INFO L274 CegarLoopResult]: For program point L290-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,803 INFO L274 CegarLoopResult]: For program point L191(lines 191 544) no Hoare annotation was computed. [2020-10-19 22:21:38,803 INFO L274 CegarLoopResult]: For program point L158(lines 158 555) no Hoare annotation was computed. [2020-10-19 22:21:38,803 INFO L274 CegarLoopResult]: For program point L125(lines 125 566) no Hoare annotation was computed. [2020-10-19 22:21:38,803 INFO L277 CegarLoopResult]: At program point L621(lines 10 623) the Hoare annotation is: true [2020-10-19 22:21:38,804 INFO L274 CegarLoopResult]: For program point L456(lines 456 460) no Hoare annotation was computed. [2020-10-19 22:21:38,804 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:21:38,804 INFO L274 CegarLoopResult]: For program point L359(lines 359 363) no Hoare annotation was computed. [2020-10-19 22:21:38,804 INFO L274 CegarLoopResult]: For program point L227(lines 227 244) no Hoare annotation was computed. [2020-10-19 22:21:38,804 INFO L274 CegarLoopResult]: For program point L194(lines 194 543) no Hoare annotation was computed. [2020-10-19 22:21:38,805 INFO L274 CegarLoopResult]: For program point L161(lines 161 554) no Hoare annotation was computed. [2020-10-19 22:21:38,805 INFO L274 CegarLoopResult]: For program point L227-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,805 INFO L274 CegarLoopResult]: For program point L128(lines 128 565) no Hoare annotation was computed. [2020-10-19 22:21:38,805 INFO L270 CegarLoopResult]: At program point L195(lines 191 544) the Hoare annotation is: (or (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) [2020-10-19 22:21:38,806 INFO L270 CegarLoopResult]: At program point L129(lines 125 566) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) .cse1) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1))) [2020-10-19 22:21:38,806 INFO L274 CegarLoopResult]: For program point L493-1(lines 493 505) no Hoare annotation was computed. [2020-10-19 22:21:38,806 INFO L274 CegarLoopResult]: For program point L427(lines 427 431) no Hoare annotation was computed. [2020-10-19 22:21:38,806 INFO L274 CegarLoopResult]: For program point L229(lines 229 234) no Hoare annotation was computed. [2020-10-19 22:21:38,806 INFO L274 CegarLoopResult]: For program point L197(lines 197 542) no Hoare annotation was computed. [2020-10-19 22:21:38,806 INFO L274 CegarLoopResult]: For program point L164(lines 164 553) no Hoare annotation was computed. [2020-10-19 22:21:38,807 INFO L274 CegarLoopResult]: For program point L131(lines 131 564) no Hoare annotation was computed. [2020-10-19 22:21:38,807 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:21:38,807 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:21:38,807 INFO L274 CegarLoopResult]: For program point L528(lines 528 532) no Hoare annotation was computed. [2020-10-19 22:21:38,807 INFO L270 CegarLoopResult]: At program point L198(lines 197 542) the Hoare annotation is: (let ((.cse3 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse1 .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse3) (and .cse0 (not .cse3) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2))) [2020-10-19 22:21:38,808 INFO L270 CegarLoopResult]: At program point L165(lines 155 556) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480)) [2020-10-19 22:21:38,808 INFO L274 CegarLoopResult]: For program point L496(lines 496 501) no Hoare annotation was computed. [2020-10-19 22:21:38,808 INFO L274 CegarLoopResult]: For program point L463(lines 463 474) no Hoare annotation was computed. [2020-10-19 22:21:38,808 INFO L274 CegarLoopResult]: For program point L463-1(lines 463 474) no Hoare annotation was computed. [2020-10-19 22:21:38,808 INFO L274 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L265-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L398(lines 398 402) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L332(lines 332 336) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L332-2(lines 205 537) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L200(lines 200 541) no Hoare annotation was computed. [2020-10-19 22:21:38,809 INFO L274 CegarLoopResult]: For program point L167(lines 167 552) no Hoare annotation was computed. [2020-10-19 22:21:38,810 INFO L274 CegarLoopResult]: For program point L134(lines 134 563) no Hoare annotation was computed. [2020-10-19 22:21:38,810 INFO L274 CegarLoopResult]: For program point L101-1(lines 68 622) no Hoare annotation was computed. [2020-10-19 22:21:38,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:21:38 BoogieIcfgContainer [2020-10-19 22:21:38,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:21:38,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:21:38,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:21:38,863 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:21:38,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:23" (3/4) ... [2020-10-19 22:21:38,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:21:38,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-19 22:21:38,910 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:21:38,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:21:38,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:21:39,119 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:21:39,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:21:39,123 INFO L168 Benchmark]: Toolchain (without parser) took 16619.51 ms. Allocated memory was 43.5 MB in the beginning and 296.7 MB in the end (delta: 253.2 MB). Free memory was 25.1 MB in the beginning and 97.2 MB in the end (delta: -72.1 MB). Peak memory consumption was 181.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,124 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 33.0 MB. Free memory was 11.9 MB in the beginning and 11.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.07 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 44.0 MB. Free memory was 21.7 MB in the beginning and 18.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,126 INFO L168 Benchmark]: Boogie Preprocessor took 39.97 ms. Allocated memory is still 44.0 MB. Free memory was 18.9 MB in the beginning and 16.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,127 INFO L168 Benchmark]: RCFGBuilder took 746.27 ms. Allocated memory was 44.0 MB in the beginning and 48.2 MB in the end (delta: 4.2 MB). Free memory was 16.5 MB in the beginning and 28.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,127 INFO L168 Benchmark]: TraceAbstraction took 15108.37 ms. Allocated memory was 48.2 MB in the beginning and 296.7 MB in the end (delta: 248.5 MB). Free memory was 28.2 MB in the beginning and 110.0 MB in the end (delta: -81.7 MB). Peak memory consumption was 232.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,128 INFO L168 Benchmark]: Witness Printer took 256.73 ms. Allocated memory is still 296.7 MB. Free memory was 110.0 MB in the beginning and 97.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:39,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 33.0 MB. Free memory was 11.9 MB in the beginning and 11.9 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 395.07 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 44.0 MB. Free memory was 21.7 MB in the beginning and 18.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.97 ms. Allocated memory is still 44.0 MB. Free memory was 18.9 MB in the beginning and 16.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 746.27 ms. Allocated memory was 44.0 MB in the beginning and 48.2 MB in the end (delta: 4.2 MB). Free memory was 16.5 MB in the beginning and 28.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 15108.37 ms. Allocated memory was 48.2 MB in the beginning and 296.7 MB in the end (delta: 248.5 MB). Free memory was 28.2 MB in the beginning and 110.0 MB in the end (delta: -81.7 MB). Peak memory consumption was 232.5 MB. Max. memory is 14.3 GB. * Witness Printer took 256.73 ms. Allocated memory is still 296.7 MB. Free memory was 110.0 MB in the beginning and 97.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4480 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) || ((blastFlag == 0 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || ((s__state <= 4352 && blastFlag == 2) && 4352 <= s__state) - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (blastFlag == 2 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: blastFlag == 2 || (s__state <= 4352 && blastFlag == 0) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((!(s__hit == 0) && 4432 <= s__state) && blastFlag <= 4) || ((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4448 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: (blastFlag == 2 && 12292 == s__state) || (blastFlag == 0 && 12292 == s__state) - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: ((s__state <= 4432 && blastFlag == 1) && 4352 <= s__state) || ((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__hit == 0) || (blastFlag == 2 && 4560 <= s__state) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((blastFlag == 2 || (((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || s__state <= 3) || ((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4)) || (blastFlag == 1 && s__state == 4384)) || ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag <= 4) && 4352 <= s__state)) || (((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && blastFlag <= 4) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (blastFlag <= 4 && s__state == 4416)) || (blastFlag == 0 && s__state == 4368) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (4432 <= s__state && blastFlag <= 4) && s__state <= 4464 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.4s, OverallIterations: 24, TraceHistogramMax: 15, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4609 SDtfs, 1688 SDslu, 2649 SDs, 0 SdLazy, 2114 SolverSat, 533 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1337 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 24 MinimizatonAttempts, 1797 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 211 NumberOfFragments, 332 HoareAnnotationTreeSize, 23 FomulaSimplifications, 36166 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 23 FomulaSimplificationsInter, 5216 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 5691 NumberOfCodeBlocks, 5691 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 5663 ConstructedInterpolants, 0 QuantifiedInterpolants, 2088301 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2495 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 17050/17120 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 correct! Received shutdown request...