./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_1.5.800.v20200727-1323.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/product-lines/minepump_spec4_product58.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f34e156823368e08bfaeac3b7f4488efc17d7ca6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:44:58,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:44:58,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:44:58,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:44:58,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:44:58,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:44:58,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:44:58,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:44:58,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:44:58,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:44:58,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:44:58,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:44:58,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:44:58,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:44:58,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:44:58,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:44:58,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:44:58,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:44:58,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:44:58,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:44:58,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:44:58,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:44:58,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:44:58,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:44:58,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:44:58,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:44:58,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:44:58,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:44:58,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:44:58,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:44:58,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:44:58,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:44:58,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:44:58,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:44:58,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:44:58,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:44:58,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:44:58,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:44:58,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:44:58,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:44:58,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:44:58,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:44:58,509 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:44:58,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:44:58,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:44:58,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:44:58,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:44:58,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:44:58,512 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:44:58,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:44:58,513 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:44:58,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:44:58,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:44:58,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:44:58,515 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:44:58,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:44:58,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:44:58,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:44:58,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:44:58,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:58,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:44:58,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:44:58,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:44:58,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:44:58,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:44:58,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:44:58,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:44:58,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2021-08-26 08:44:58,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:44:58,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:44:58,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:44:58,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:44:58,798 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:44:58,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-08-26 08:44:58,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65acb80c7/d0a652870ed6413aabf7e824a2312d5f/FLAG7e9cd7aad [2021-08-26 08:44:59,269 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:44:59,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-08-26 08:44:59,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65acb80c7/d0a652870ed6413aabf7e824a2312d5f/FLAG7e9cd7aad [2021-08-26 08:44:59,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65acb80c7/d0a652870ed6413aabf7e824a2312d5f [2021-08-26 08:44:59,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:44:59,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:44:59,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:59,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:44:59,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:44:59,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb1a17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59, skipping insertion in model container [2021-08-26 08:44:59,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:44:59,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:44:59,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2021-08-26 08:44:59,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:59,529 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:44:59,560 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2021-08-26 08:44:59,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:59,599 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:44:59,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59 WrapperNode [2021-08-26 08:44:59,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:59,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:59,601 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:44:59,601 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:44:59,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:59,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:44:59,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:44:59,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:44:59,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:44:59,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:44:59,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:44:59,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:44:59,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (1/1) ... [2021-08-26 08:44:59,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:59,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:59,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 08:44:59,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 08:44:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:44:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:44:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:44:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:45:00,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:45:00,632 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-08-26 08:45:00,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:00 BoogieIcfgContainer [2021-08-26 08:45:00,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:45:00,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:45:00,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:45:00,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:45:00,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:44:59" (1/3) ... [2021-08-26 08:45:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f3dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:45:00, skipping insertion in model container [2021-08-26 08:45:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:59" (2/3) ... [2021-08-26 08:45:00,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f3dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:45:00, skipping insertion in model container [2021-08-26 08:45:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:00" (3/3) ... [2021-08-26 08:45:00,644 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2021-08-26 08:45:00,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:45:00,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:45:00,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:45:00,706 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 08:45:00,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:45:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 08:45:00,737 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:00,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:00,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:00,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:00,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1138467236, now seen corresponding path program 1 times [2021-08-26 08:45:00,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:00,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493658313] [2021-08-26 08:45:00,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:00,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:00,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:00,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493658313] [2021-08-26 08:45:00,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493658313] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:00,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:00,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:45:00,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237154087] [2021-08-26 08:45:00,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:45:00,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:45:01,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:45:01,005 INFO L87 Difference]: Start difference. First operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,047 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-08-26 08:45:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:45:01,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-26 08:45:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,057 INFO L225 Difference]: With dead ends: 264 [2021-08-26 08:45:01,057 INFO L226 Difference]: Without dead ends: 131 [2021-08-26 08:45:01,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:45:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-26 08:45:01,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-26 08:45:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.4765625) internal successors, (189), 130 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-08-26 08:45:01,101 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-08-26 08:45:01,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,102 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-08-26 08:45:01,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-08-26 08:45:01,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 08:45:01,103 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,104 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:01,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:45:01,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1722273200, now seen corresponding path program 1 times [2021-08-26 08:45:01,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442509123] [2021-08-26 08:45:01,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442509123] [2021-08-26 08:45:01,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442509123] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:45:01,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265537562] [2021-08-26 08:45:01,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:45:01,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:45:01,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,216 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,232 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-08-26 08:45:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:45:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-26 08:45:01,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,235 INFO L225 Difference]: With dead ends: 131 [2021-08-26 08:45:01,235 INFO L226 Difference]: Without dead ends: 53 [2021-08-26 08:45:01,237 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-26 08:45:01,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-26 08:45:01,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 52 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-08-26 08:45:01,244 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-08-26 08:45:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,245 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-08-26 08:45:01,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-08-26 08:45:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 08:45:01,246 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,246 INFO L512 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] [2021-08-26 08:45:01,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:45:01,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2021-08-26 08:45:01,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808448798] [2021-08-26 08:45:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808448798] [2021-08-26 08:45:01,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808448798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:45:01,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487207791] [2021-08-26 08:45:01,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:45:01,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:45:01,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,329 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,351 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-08-26 08:45:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:45:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-26 08:45:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,356 INFO L225 Difference]: With dead ends: 100 [2021-08-26 08:45:01,356 INFO L226 Difference]: Without dead ends: 53 [2021-08-26 08:45:01,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-26 08:45:01,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-26 08:45:01,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-08-26 08:45:01,364 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-08-26 08:45:01,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,364 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-08-26 08:45:01,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,365 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-08-26 08:45:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:45:01,366 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,366 INFO L512 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] [2021-08-26 08:45:01,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:45:01,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,367 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2021-08-26 08:45:01,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593141976] [2021-08-26 08:45:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593141976] [2021-08-26 08:45:01,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593141976] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:45:01,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731659936] [2021-08-26 08:45:01,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:45:01,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:45:01,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,439 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,479 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-08-26 08:45:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:45:01,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 08:45:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,480 INFO L225 Difference]: With dead ends: 121 [2021-08-26 08:45:01,480 INFO L226 Difference]: Without dead ends: 74 [2021-08-26 08:45:01,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-08-26 08:45:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-08-26 08:45:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 71 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-08-26 08:45:01,487 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-08-26 08:45:01,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,487 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-08-26 08:45:01,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-08-26 08:45:01,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 08:45:01,488 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:01,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:45:01,489 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,490 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2021-08-26 08:45:01,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4157394] [2021-08-26 08:45:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4157394] [2021-08-26 08:45:01,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4157394] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:01,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399097079] [2021-08-26 08:45:01,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:01,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:01,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:01,557 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,632 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2021-08-26 08:45:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-26 08:45:01,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,633 INFO L225 Difference]: With dead ends: 253 [2021-08-26 08:45:01,633 INFO L226 Difference]: Without dead ends: 187 [2021-08-26 08:45:01,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:01,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-08-26 08:45:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-08-26 08:45:01,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3859649122807018) internal successors, (158), 114 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2021-08-26 08:45:01,640 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2021-08-26 08:45:01,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,641 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2021-08-26 08:45:01,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2021-08-26 08:45:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:45:01,642 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,642 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:01,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:45:01,642 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,643 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2021-08-26 08:45:01,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678806235] [2021-08-26 08:45:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678806235] [2021-08-26 08:45:01,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678806235] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:45:01,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860548474] [2021-08-26 08:45:01,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:01,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:01,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:01,682 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,751 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2021-08-26 08:45:01,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:45:01,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-26 08:45:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,752 INFO L225 Difference]: With dead ends: 238 [2021-08-26 08:45:01,753 INFO L226 Difference]: Without dead ends: 172 [2021-08-26 08:45:01,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:01,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-26 08:45:01,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-08-26 08:45:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.3869047619047619) internal successors, (233), 168 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-08-26 08:45:01,771 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2021-08-26 08:45:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,771 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-08-26 08:45:01,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2021-08-26 08:45:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:45:01,773 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,773 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:01,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 08:45:01,774 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2021-08-26 08:45:01,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900000311] [2021-08-26 08:45:01,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900000311] [2021-08-26 08:45:01,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900000311] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:01,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611998822] [2021-08-26 08:45:01,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:01,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:01,824 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:01,862 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2021-08-26 08:45:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:45:01,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-26 08:45:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:01,865 INFO L225 Difference]: With dead ends: 473 [2021-08-26 08:45:01,865 INFO L226 Difference]: Without dead ends: 352 [2021-08-26 08:45:01,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:01,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-08-26 08:45:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2021-08-26 08:45:01,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.375) internal successors, (231), 168 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2021-08-26 08:45:01,874 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2021-08-26 08:45:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:01,875 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2021-08-26 08:45:01,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:01,875 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2021-08-26 08:45:01,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:45:01,875 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:01,876 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:01,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 08:45:01,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:01,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2021-08-26 08:45:01,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:01,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928208763] [2021-08-26 08:45:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:01,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:01,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:01,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928208763] [2021-08-26 08:45:01,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928208763] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:01,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:01,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 08:45:01,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824966954] [2021-08-26 08:45:01,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:45:01,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:45:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:45:01,920 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,021 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2021-08-26 08:45:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 08:45:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-08-26 08:45:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,023 INFO L225 Difference]: With dead ends: 592 [2021-08-26 08:45:02,023 INFO L226 Difference]: Without dead ends: 429 [2021-08-26 08:45:02,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-26 08:45:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-08-26 08:45:02,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2021-08-26 08:45:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.344632768361582) internal successors, (238), 177 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2021-08-26 08:45:02,034 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2021-08-26 08:45:02,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,035 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2021-08-26 08:45:02,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,035 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2021-08-26 08:45:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:45:02,036 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,036 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:02,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 08:45:02,036 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2021-08-26 08:45:02,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553202767] [2021-08-26 08:45:02,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553202767] [2021-08-26 08:45:02,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553202767] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:02,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642993399] [2021-08-26 08:45:02,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,088 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,180 INFO L93 Difference]: Finished difference Result 392 states and 528 transitions. [2021-08-26 08:45:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:02,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 08:45:02,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,183 INFO L225 Difference]: With dead ends: 392 [2021-08-26 08:45:02,183 INFO L226 Difference]: Without dead ends: 265 [2021-08-26 08:45:02,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-08-26 08:45:02,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 174. [2021-08-26 08:45:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.329479768786127) internal successors, (230), 173 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 230 transitions. [2021-08-26 08:45:02,192 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 230 transitions. Word has length 34 [2021-08-26 08:45:02,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,192 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 230 transitions. [2021-08-26 08:45:02,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,193 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 230 transitions. [2021-08-26 08:45:02,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-26 08:45:02,193 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,194 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:45:02,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 08:45:02,194 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,194 INFO L82 PathProgramCache]: Analyzing trace with hash 121178437, now seen corresponding path program 1 times [2021-08-26 08:45:02,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5100474] [2021-08-26 08:45:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 08:45:02,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5100474] [2021-08-26 08:45:02,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5100474] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:02,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093213625] [2021-08-26 08:45:02,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,262 INFO L87 Difference]: Start difference. First operand 174 states and 230 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,302 INFO L93 Difference]: Finished difference Result 392 states and 520 transitions. [2021-08-26 08:45:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:45:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-08-26 08:45:02,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,303 INFO L225 Difference]: With dead ends: 392 [2021-08-26 08:45:02,303 INFO L226 Difference]: Without dead ends: 224 [2021-08-26 08:45:02,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:45:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-08-26 08:45:02,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 174. [2021-08-26 08:45:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.3121387283236994) internal successors, (227), 173 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 227 transitions. [2021-08-26 08:45:02,312 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 227 transitions. Word has length 53 [2021-08-26 08:45:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,313 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 227 transitions. [2021-08-26 08:45:02,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 227 transitions. [2021-08-26 08:45:02,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-26 08:45:02,313 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,314 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:45:02,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 08:45:02,314 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,314 INFO L82 PathProgramCache]: Analyzing trace with hash 48791879, now seen corresponding path program 1 times [2021-08-26 08:45:02,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811188877] [2021-08-26 08:45:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 08:45:02,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811188877] [2021-08-26 08:45:02,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811188877] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:02,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698359824] [2021-08-26 08:45:02,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:02,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:02,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:02,345 INFO L87 Difference]: Start difference. First operand 174 states and 227 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,377 INFO L93 Difference]: Finished difference Result 356 states and 469 transitions. [2021-08-26 08:45:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:45:02,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-08-26 08:45:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,378 INFO L225 Difference]: With dead ends: 356 [2021-08-26 08:45:02,378 INFO L226 Difference]: Without dead ends: 188 [2021-08-26 08:45:02,379 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-08-26 08:45:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 141. [2021-08-26 08:45:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3) internal successors, (182), 140 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 182 transitions. [2021-08-26 08:45:02,400 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 182 transitions. Word has length 53 [2021-08-26 08:45:02,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,400 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 182 transitions. [2021-08-26 08:45:02,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,400 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 182 transitions. [2021-08-26 08:45:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-26 08:45:02,400 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,401 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:45:02,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 08:45:02,401 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,401 INFO L82 PathProgramCache]: Analyzing trace with hash -516506869, now seen corresponding path program 1 times [2021-08-26 08:45:02,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072986844] [2021-08-26 08:45:02,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:45:02,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072986844] [2021-08-26 08:45:02,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072986844] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:02,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896679613] [2021-08-26 08:45:02,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,456 INFO L87 Difference]: Start difference. First operand 141 states and 182 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,498 INFO L93 Difference]: Finished difference Result 467 states and 615 transitions. [2021-08-26 08:45:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-26 08:45:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,500 INFO L225 Difference]: With dead ends: 467 [2021-08-26 08:45:02,501 INFO L226 Difference]: Without dead ends: 356 [2021-08-26 08:45:02,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:45:02,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-08-26 08:45:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2021-08-26 08:45:02,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.2937062937062938) internal successors, (185), 143 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 185 transitions. [2021-08-26 08:45:02,510 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 185 transitions. Word has length 54 [2021-08-26 08:45:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,511 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 185 transitions. [2021-08-26 08:45:02,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 185 transitions. [2021-08-26 08:45:02,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-26 08:45:02,512 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,512 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:45:02,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 08:45:02,513 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,513 INFO L82 PathProgramCache]: Analyzing trace with hash -909533879, now seen corresponding path program 1 times [2021-08-26 08:45:02,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672120914] [2021-08-26 08:45:02,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:45:02,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672120914] [2021-08-26 08:45:02,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672120914] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:02,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563821365] [2021-08-26 08:45:02,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,555 INFO L87 Difference]: Start difference. First operand 144 states and 185 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,665 INFO L93 Difference]: Finished difference Result 368 states and 476 transitions. [2021-08-26 08:45:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:45:02,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-26 08:45:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,666 INFO L225 Difference]: With dead ends: 368 [2021-08-26 08:45:02,667 INFO L226 Difference]: Without dead ends: 366 [2021-08-26 08:45:02,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 33.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:45:02,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-08-26 08:45:02,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2021-08-26 08:45:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.2867132867132867) internal successors, (184), 143 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 184 transitions. [2021-08-26 08:45:02,680 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 184 transitions. Word has length 54 [2021-08-26 08:45:02,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,681 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 184 transitions. [2021-08-26 08:45:02,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 184 transitions. [2021-08-26 08:45:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-26 08:45:02,681 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,682 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:45:02,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-26 08:45:02,682 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 473466575, now seen corresponding path program 1 times [2021-08-26 08:45:02,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785903952] [2021-08-26 08:45:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785903952] [2021-08-26 08:45:02,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785903952] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:45:02,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281036782] [2021-08-26 08:45:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:45:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:45:02,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 08:45:02,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 08:45:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 08:45:02,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 08:45:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:03,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281036782] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:45:03,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 08:45:03,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-26 08:45:03,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246686937] [2021-08-26 08:45:03,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:45:03,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:45:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:45:03,087 INFO L87 Difference]: Start difference. First operand 144 states and 184 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,231 INFO L93 Difference]: Finished difference Result 445 states and 581 transitions. [2021-08-26 08:45:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:45:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-26 08:45:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,233 INFO L225 Difference]: With dead ends: 445 [2021-08-26 08:45:03,233 INFO L226 Difference]: Without dead ends: 331 [2021-08-26 08:45:03,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 45.3ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-08-26 08:45:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-08-26 08:45:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 201. [2021-08-26 08:45:03,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.3) internal successors, (260), 200 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2021-08-26 08:45:03,247 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 55 [2021-08-26 08:45:03,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,247 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2021-08-26 08:45:03,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,247 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2021-08-26 08:45:03,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-26 08:45:03,248 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,248 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-08-26 08:45:03,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 08:45:03,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-26 08:45:03,472 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,472 INFO L82 PathProgramCache]: Analyzing trace with hash -2086945688, now seen corresponding path program 2 times [2021-08-26 08:45:03,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424685758] [2021-08-26 08:45:03,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:45:03,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424685758] [2021-08-26 08:45:03,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424685758] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:03,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254782098] [2021-08-26 08:45:03,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:03,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,626 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,855 INFO L93 Difference]: Finished difference Result 608 states and 801 transitions. [2021-08-26 08:45:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 08:45:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-08-26 08:45:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,857 INFO L225 Difference]: With dead ends: 608 [2021-08-26 08:45:03,857 INFO L226 Difference]: Without dead ends: 436 [2021-08-26 08:45:03,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 67.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2021-08-26 08:45:03,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 274. [2021-08-26 08:45:03,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 1.293040293040293) internal successors, (353), 273 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 353 transitions. [2021-08-26 08:45:03,881 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 353 transitions. Word has length 76 [2021-08-26 08:45:03,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,881 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 353 transitions. [2021-08-26 08:45:03,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 353 transitions. [2021-08-26 08:45:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-26 08:45:03,882 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,882 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-08-26 08:45:03,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-26 08:45:03,883 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1812186074, now seen corresponding path program 1 times [2021-08-26 08:45:03,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592702886] [2021-08-26 08:45:03,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,918 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-26 08:45:03,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592702886] [2021-08-26 08:45:03,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592702886] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:03,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491880336] [2021-08-26 08:45:03,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:03,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:03,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,920 INFO L87 Difference]: Start difference. First operand 274 states and 353 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,962 INFO L93 Difference]: Finished difference Result 483 states and 621 transitions. [2021-08-26 08:45:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:45:03,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-08-26 08:45:03,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,963 INFO L225 Difference]: With dead ends: 483 [2021-08-26 08:45:03,963 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 08:45:03,964 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:45:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 08:45:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 08:45:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 08:45:03,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-08-26 08:45:03,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,964 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 08:45:03,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 08:45:03,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 08:45:03,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:03,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:03,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:03,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-26 08:45:03,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 08:45:03,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,701 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,710 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:04,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:08,017 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L930(lines 929 976) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L798(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L765(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:08,018 INFO L857 garLoopResultBuilder]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,019 INFO L857 garLoopResultBuilder]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,019 INFO L857 garLoopResultBuilder]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,019 INFO L857 garLoopResultBuilder]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2021-08-26 08:45:08,019 INFO L857 garLoopResultBuilder]: For program point L931(lines 931 935) no Hoare annotation was computed. [2021-08-26 08:45:08,019 INFO L853 garLoopResultBuilder]: At program point L832(lines 827 835) the Hoare annotation is: false [2021-08-26 08:45:08,019 INFO L853 garLoopResultBuilder]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2021-08-26 08:45:08,019 INFO L853 garLoopResultBuilder]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2021-08-26 08:45:08,020 INFO L853 garLoopResultBuilder]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2021-08-26 08:45:08,020 INFO L857 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-08-26 08:45:08,020 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,020 INFO L857 garLoopResultBuilder]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,020 INFO L857 garLoopResultBuilder]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,020 INFO L857 garLoopResultBuilder]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,021 INFO L857 garLoopResultBuilder]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,021 INFO L857 garLoopResultBuilder]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2021-08-26 08:45:08,021 INFO L857 garLoopResultBuilder]: For program point L900(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,021 INFO L857 garLoopResultBuilder]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,021 INFO L857 garLoopResultBuilder]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L735(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,022 INFO L857 garLoopResultBuilder]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2021-08-26 08:45:08,023 INFO L857 garLoopResultBuilder]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,023 INFO L857 garLoopResultBuilder]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:08,023 INFO L857 garLoopResultBuilder]: For program point L471(lines 471 475) no Hoare annotation was computed. [2021-08-26 08:45:08,023 INFO L857 garLoopResultBuilder]: For program point L967(lines 967 971) no Hoare annotation was computed. [2021-08-26 08:45:08,023 INFO L853 garLoopResultBuilder]: At program point L967-2(lines 703 709) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-08-26 08:45:08,023 INFO L853 garLoopResultBuilder]: At program point L703(lines 702 721) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-08-26 08:45:08,024 INFO L857 garLoopResultBuilder]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2021-08-26 08:45:08,024 INFO L853 garLoopResultBuilder]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2021-08-26 08:45:08,024 INFO L853 garLoopResultBuilder]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2021-08-26 08:45:08,024 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,024 INFO L857 garLoopResultBuilder]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-08-26 08:45:08,024 INFO L857 garLoopResultBuilder]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2021-08-26 08:45:08,024 INFO L857 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L441-1(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L441-2(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L739(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,025 INFO L857 garLoopResultBuilder]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,026 INFO L857 garLoopResultBuilder]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541(lines 532 545) the Hoare annotation is: false [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541-1(lines 532 545) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)))) [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2021-08-26 08:45:08,026 INFO L853 garLoopResultBuilder]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2021-08-26 08:45:08,027 INFO L857 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2021-08-26 08:45:08,027 INFO L853 garLoopResultBuilder]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-08-26 08:45:08,027 INFO L853 garLoopResultBuilder]: At program point L906(lines 891 909) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (<= 1 ~waterLevel~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0)) [2021-08-26 08:45:08,027 INFO L853 garLoopResultBuilder]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2021-08-26 08:45:08,027 INFO L853 garLoopResultBuilder]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2021-08-26 08:45:08,027 INFO L853 garLoopResultBuilder]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse1 (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2021-08-26 08:45:08,028 INFO L853 garLoopResultBuilder]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2021-08-26 08:45:08,028 INFO L857 garLoopResultBuilder]: For program point L644(lines 644 651) no Hoare annotation was computed. [2021-08-26 08:45:08,028 INFO L853 garLoopResultBuilder]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2021-08-26 08:45:08,028 INFO L860 garLoopResultBuilder]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2021-08-26 08:45:08,028 INFO L853 garLoopResultBuilder]: At program point L977(lines 928 978) the Hoare annotation is: false [2021-08-26 08:45:08,028 INFO L853 garLoopResultBuilder]: At program point L680(lines 1 984) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:08,028 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L881(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L857 garLoopResultBuilder]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,029 INFO L853 garLoopResultBuilder]: At program point L617(lines 613 619) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:08,030 INFO L857 garLoopResultBuilder]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,030 INFO L857 garLoopResultBuilder]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,030 INFO L853 garLoopResultBuilder]: At program point L551(lines 546 554) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-08-26 08:45:08,030 INFO L853 garLoopResultBuilder]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2021-08-26 08:45:08,030 INFO L857 garLoopResultBuilder]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,030 INFO L853 garLoopResultBuilder]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2021-08-26 08:45:08,030 INFO L857 garLoopResultBuilder]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,031 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:08,031 INFO L857 garLoopResultBuilder]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,031 INFO L853 garLoopResultBuilder]: At program point L419-1(lines 1 984) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse2 (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)))) [2021-08-26 08:45:08,031 INFO L857 garLoopResultBuilder]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,031 INFO L857 garLoopResultBuilder]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:08,031 INFO L853 garLoopResultBuilder]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2021-08-26 08:45:08,031 INFO L857 garLoopResultBuilder]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2021-08-26 08:45:08,032 INFO L857 garLoopResultBuilder]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:08,032 INFO L853 garLoopResultBuilder]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2021-08-26 08:45:08,032 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 955) no Hoare annotation was computed. [2021-08-26 08:45:08,032 INFO L853 garLoopResultBuilder]: At program point L949-1(lines 949 955) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-08-26 08:45:08,032 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 08:45:08,032 INFO L860 garLoopResultBuilder]: At program point L653(lines 634 656) the Hoare annotation is: true [2021-08-26 08:45:08,032 INFO L857 garLoopResultBuilder]: For program point L423(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:08,033 INFO L857 garLoopResultBuilder]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:08,033 INFO L857 garLoopResultBuilder]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:08,033 INFO L853 garLoopResultBuilder]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:08,033 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 08:45:08,033 INFO L853 garLoopResultBuilder]: At program point L887(lines 872 890) the Hoare annotation is: false [2021-08-26 08:45:08,033 INFO L853 garLoopResultBuilder]: At program point L887-1(lines 872 890) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse4 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (or (and .cse0 .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse4 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 (<= 2 ~waterLevel~0) (not .cse3) .cse4 (not .cse1) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2021-08-26 08:45:08,033 INFO L853 garLoopResultBuilder]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2021-08-26 08:45:08,034 INFO L853 garLoopResultBuilder]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2021-08-26 08:45:08,034 INFO L853 garLoopResultBuilder]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2021-08-26 08:45:08,034 INFO L853 garLoopResultBuilder]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2021-08-26 08:45:08,034 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 463) no Hoare annotation was computed. [2021-08-26 08:45:08,034 INFO L857 garLoopResultBuilder]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2021-08-26 08:45:08,034 INFO L857 garLoopResultBuilder]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2021-08-26 08:45:08,034 INFO L853 garLoopResultBuilder]: At program point L823(lines 816 826) the Hoare annotation is: false [2021-08-26 08:45:08,035 INFO L853 garLoopResultBuilder]: At program point L823-1(lines 816 826) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= 1 ~systemActive~0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2021-08-26 08:45:08,035 INFO L853 garLoopResultBuilder]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2021-08-26 08:45:08,035 INFO L853 garLoopResultBuilder]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2021-08-26 08:45:08,035 INFO L853 garLoopResultBuilder]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2021-08-26 08:45:08,035 INFO L853 garLoopResultBuilder]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2021-08-26 08:45:08,035 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 08:45:08,035 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L528(lines 523 531) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse1 (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L496(lines 491 499) the Hoare annotation is: false [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L496-1(lines 491 499) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= 1 ~systemActive~0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 0)) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2021-08-26 08:45:08,036 INFO L853 garLoopResultBuilder]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2021-08-26 08:45:08,037 INFO L853 garLoopResultBuilder]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2021-08-26 08:45:08,037 INFO L853 garLoopResultBuilder]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2021-08-26 08:45:08,037 INFO L853 garLoopResultBuilder]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2021-08-26 08:45:08,037 INFO L857 garLoopResultBuilder]: For program point L959(lines 959 972) no Hoare annotation was computed. [2021-08-26 08:45:08,037 INFO L857 garLoopResultBuilder]: For program point L761(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:08,037 INFO L857 garLoopResultBuilder]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:08,037 INFO L857 garLoopResultBuilder]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:08,041 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:45:08,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:45:08 BoogieIcfgContainer [2021-08-26 08:45:08,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:45:08,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:45:08,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:45:08,070 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:45:08,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:00" (3/4) ... [2021-08-26 08:45:08,073 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 08:45:08,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-26 08:45:08,086 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-26 08:45:08,087 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 08:45:08,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 08:45:08,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 08:45:08,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:08,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:08,105 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) || (((((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && 2 <= \result) && \result == 0) && tmp == 0)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) [2021-08-26 08:45:08,106 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || (((((((splverifierCounter == 0 && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0) [2021-08-26 08:45:08,107 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) || ((((((((splverifierCounter == 0 && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && 2 <= \result) && \result == 0) && tmp == 0) [2021-08-26 08:45:08,107 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((splverifierCounter == 0 && \result == 0) && 1 == systemActive) && 1 <= waterLevel [2021-08-26 08:45:08,108 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0) [2021-08-26 08:45:08,108 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && splverifierCounter == 0) && \result == 0) && 1 == systemActive) && tmp___0 == 1) && 1 <= waterLevel) && tmp == 0 [2021-08-26 08:45:08,108 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 0) && tmp == 0) [2021-08-26 08:45:08,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0 [2021-08-26 08:45:08,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0 [2021-08-26 08:45:08,134 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:45:08,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:45:08,135 INFO L168 Benchmark]: Toolchain (without parser) took 8840.92 ms. Allocated memory was 50.3 MB in the beginning and 222.3 MB in the end (delta: 172.0 MB). Free memory was 26.9 MB in the beginning and 113.5 MB in the end (delta: -86.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,135 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:45:08,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.83 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 42.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.56 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 38.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,136 INFO L168 Benchmark]: Boogie Preprocessor took 64.22 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 35.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,136 INFO L168 Benchmark]: RCFGBuilder took 904.09 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 56.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,136 INFO L168 Benchmark]: TraceAbstraction took 7432.80 ms. Allocated memory was 86.0 MB in the beginning and 222.3 MB in the end (delta: 136.3 MB). Free memory was 56.4 MB in the beginning and 125.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 125.4 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,137 INFO L168 Benchmark]: Witness Printer took 63.98 ms. Allocated memory is still 222.3 MB. Free memory was 125.0 MB in the beginning and 113.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:08,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.83 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 42.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.56 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 38.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.22 ms. Allocated memory is still 67.1 MB. Free memory was 38.8 MB in the beginning and 35.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 904.09 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 35.7 MB in the beginning and 56.8 MB in the end (delta: -21.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7432.80 ms. Allocated memory was 86.0 MB in the beginning and 222.3 MB in the end (delta: 136.3 MB). Free memory was 56.4 MB in the beginning and 125.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 125.4 MB. Max. memory is 16.1 GB. * Witness Printer took 63.98 ms. Allocated memory is still 222.3 MB. Free memory was 125.0 MB in the beginning and 113.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7340.1ms, OverallIterations: 16, TraceHistogramMax: 3, EmptinessCheckTime: 21.4ms, AutomataDifference: 1220.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4048.9ms, InitialAbstractionConstructionTime: 19.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1873 SDtfs, 2501 SDslu, 2837 SDs, 0 SdLazy, 427 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 477.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 310.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=15, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 188.1ms AutomataMinimizationTime, 16 MinimizatonAttempts, 1425 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 139 NumberOfFragments, 491 HoareAnnotationTreeSize, 55 FomulaSimplifications, 5686361 FormulaSimplificationTreeSizeReduction, 986.3ms HoareSimplificationTime, 55 FomulaSimplificationsInter, 276674 FormulaSimplificationTreeSizeReductionInter, 3048.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 66.9ms SsaConstructionTime, 426.8ms SatisfiabilityAnalysisTime, 811.0ms InterpolantComputationTime, 712 NumberOfCodeBlocks, 712 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 1090 SizeOfPredicates, 3 NumberOfNonLiveVariables, 441 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 17 InterpolantComputations, 15 PerfectInterpolantSequences, 176/182 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || (((((((splverifierCounter == 0 && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) && \result == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: (splverifierCounter == 0 && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0 - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && tmp == 1) && \result == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 0) && tmp == 0) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && \result == 0) && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (((((\result == 1 && splverifierCounter == 0) && \result == 0) && 1 == systemActive) && tmp___0 == 1) && 1 <= waterLevel) && tmp == 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) || ((((((((splverifierCounter == 0 && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && 2 <= \result) && \result == 0) && tmp == 0) - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && \result == 0) && tmp == 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) || (((((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && !(\result == 0)) && 1 == systemActive) && !(tmp == 0)) && !(tmp___0 == 0)) && 2 <= \result) && \result == 0) && tmp == 0)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 08:45:08,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...