./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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_product57.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 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 16:16:38,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 16:16:38,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 16:16:38,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 16:16:38,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 16:16:38,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 16:16:38,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 16:16:38,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 16:16:38,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 16:16:38,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 16:16:38,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 16:16:38,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 16:16:38,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 16:16:38,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 16:16:38,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 16:16:38,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 16:16:38,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 16:16:38,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 16:16:38,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 16:16:38,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 16:16:38,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 16:16:38,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 16:16:38,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 16:16:38,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 16:16:38,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 16:16:38,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 16:16:38,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 16:16:38,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 16:16:38,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 16:16:38,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 16:16:38,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 16:16:38,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 16:16:38,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 16:16:38,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 16:16:38,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 16:16:38,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 16:16:38,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 16:16:38,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 16:16:38,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 16:16:38,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 16:16:38,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 16:16:38,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 16:16:38,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 16:16:38,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 16:16:38,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 16:16:38,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 16:16:38,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 16:16:38,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 16:16:38,518 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 16:16:38,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 16:16:38,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 16:16:38,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 16:16:38,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 16:16:38,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 16:16:38,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 16:16:38,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 16:16:38,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 16:16:38,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 16:16:38,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 16:16:38,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 16:16:38,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 16:16:38,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 16:16:38,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 16:16:38,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 16:16:38,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:38,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 16:16:38,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 16:16:38,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 16:16:38,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 16:16:38,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 16:16:38,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 16:16:38,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 16:16:38,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 [2021-08-29 16:16:38,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 16:16:38,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 16:16:38,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 16:16:38,877 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 16:16:38,878 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 16:16:38,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-08-29 16:16:38,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e8c312/4e435a41be454da9b00b4b59ba463990/FLAG50f9d9e49 [2021-08-29 16:16:39,394 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 16:16:39,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-08-29 16:16:39,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e8c312/4e435a41be454da9b00b4b59ba463990/FLAG50f9d9e49 [2021-08-29 16:16:39,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/868e8c312/4e435a41be454da9b00b4b59ba463990 [2021-08-29 16:16:39,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 16:16:39,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 16:16:39,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:39,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 16:16:39,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 16:16:39,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:39" (1/1) ... [2021-08-29 16:16:39,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32db5189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:39, skipping insertion in model container [2021-08-29 16:16:39,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:16:39" (1/1) ... [2021-08-29 16:16:39,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 16:16:39,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 16:16:40,216 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_product57.cil.c[18367,18380] [2021-08-29 16:16:40,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:40,226 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 16:16:40,302 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_product57.cil.c[18367,18380] [2021-08-29 16:16:40,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 16:16:40,323 INFO L208 MainTranslator]: Completed translation [2021-08-29 16:16:40,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40 WrapperNode [2021-08-29 16:16:40,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 16:16:40,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:40,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 16:16:40,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 16:16:40,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 16:16:40,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 16:16:40,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 16:16:40,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 16:16:40,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 16:16:40,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 16:16:40,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 16:16:40,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 16:16:40,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (1/1) ... [2021-08-29 16:16:40,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 16:16:40,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:40,504 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) [2021-08-29 16:16:40,506 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 [2021-08-29 16:16:40,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 16:16:40,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 16:16:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 16:16:40,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 16:16:41,170 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 16:16:41,170 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-08-29 16:16:41,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:41 BoogieIcfgContainer [2021-08-29 16:16:41,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 16:16:41,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 16:16:41,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 16:16:41,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 16:16:41,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:16:39" (1/3) ... [2021-08-29 16:16:41,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8deb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:41, skipping insertion in model container [2021-08-29 16:16:41,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:16:40" (2/3) ... [2021-08-29 16:16:41,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8deb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:16:41, skipping insertion in model container [2021-08-29 16:16:41,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:41" (3/3) ... [2021-08-29 16:16:41,179 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-08-29 16:16:41,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 16:16:41,183 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-29 16:16:41,222 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 16:16:41,228 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 [2021-08-29 16:16:41,228 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 16:16:41,243 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) [2021-08-29 16:16:41,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 16:16:41,248 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:41,249 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:41,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:41,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:41,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2021-08-29 16:16:41,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:41,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062266710] [2021-08-29 16:16:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:41,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:41,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:41,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062266710] [2021-08-29 16:16:41,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062266710] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:41,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:41,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:41,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406073539] [2021-08-29 16:16:41,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 16:16:41,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 16:16:41,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:41,562 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) [2021-08-29 16:16:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:41,819 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-08-29 16:16:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 16:16:41,822 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 [2021-08-29 16:16:41,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:41,832 INFO L225 Difference]: With dead ends: 264 [2021-08-29 16:16:41,833 INFO L226 Difference]: Without dead ends: 131 [2021-08-29 16:16:41,837 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 16:16:41,842 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.73ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:41,844 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 194 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 222.73ms Time] [2021-08-29 16:16:41,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-29 16:16:41,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-08-29 16:16:41,894 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) [2021-08-29 16:16:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-08-29 16:16:41,902 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-08-29 16:16:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:41,904 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-08-29 16:16:41,904 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) [2021-08-29 16:16:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-08-29 16:16:41,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-29 16:16:41,905 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:41,905 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 16:16:41,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 16:16:41,906 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:41,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:41,909 INFO L82 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2021-08-29 16:16:41,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:41,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094078494] [2021-08-29 16:16:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:41,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:42,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:42,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:42,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094078494] [2021-08-29 16:16:42,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094078494] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:42,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:42,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:16:42,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702238238] [2021-08-29 16:16:42,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:42,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:42,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:42,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:42,044 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) [2021-08-29 16:16:42,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:42,194 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-08-29 16:16:42,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:42,196 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 [2021-08-29 16:16:42,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:42,196 INFO L225 Difference]: With dead ends: 131 [2021-08-29 16:16:42,196 INFO L226 Difference]: Without dead ends: 53 [2021-08-29 16:16:42,197 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.82ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:42,198 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 69 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 99.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 138.38ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:42,199 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 0 Invalid, 81 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 138.38ms Time] [2021-08-29 16:16:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-29 16:16:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-29 16:16:42,218 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) [2021-08-29 16:16:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-08-29 16:16:42,219 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-08-29 16:16:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:42,220 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-08-29 16:16:42,220 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) [2021-08-29 16:16:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-08-29 16:16:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-29 16:16:42,221 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:42,222 INFO L513 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] [2021-08-29 16:16:42,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 16:16:42,222 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:42,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:42,223 INFO L82 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2021-08-29 16:16:42,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:42,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382375907] [2021-08-29 16:16:42,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:42,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:42,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:42,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:42,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382375907] [2021-08-29 16:16:42,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382375907] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:42,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:42,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:42,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445320767] [2021-08-29 16:16:42,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:16:42,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:42,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:16:42,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:42,303 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2021-08-29 16:16:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:42,459 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-08-29 16:16:42,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:16:42,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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 [2021-08-29 16:16:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:42,461 INFO L225 Difference]: With dead ends: 100 [2021-08-29 16:16:42,461 INFO L226 Difference]: Without dead ends: 53 [2021-08-29 16:16:42,462 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.48ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:42,463 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 217 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.22ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:42,463 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 0 Invalid, 81 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 133.22ms Time] [2021-08-29 16:16:42,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-08-29 16:16:42,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-08-29 16:16:42,468 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) [2021-08-29 16:16:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-08-29 16:16:42,468 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-08-29 16:16:42,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:42,469 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-08-29 16:16:42,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 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) [2021-08-29 16:16:42,469 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-08-29 16:16:42,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-29 16:16:42,470 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:42,470 INFO L513 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] [2021-08-29 16:16:42,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 16:16:42,470 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:42,471 INFO L82 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2021-08-29 16:16:42,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:42,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088359918] [2021-08-29 16:16:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:42,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:42,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:42,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:42,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088359918] [2021-08-29 16:16:42,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088359918] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:42,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:42,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 16:16:42,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11175002] [2021-08-29 16:16:42,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 16:16:42,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 16:16:42,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:42,540 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) [2021-08-29 16:16:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:42,673 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-08-29 16:16:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 16:16:42,674 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 [2021-08-29 16:16:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:42,674 INFO L225 Difference]: With dead ends: 121 [2021-08-29 16:16:42,674 INFO L226 Difference]: Without dead ends: 74 [2021-08-29 16:16:42,675 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 16:16:42,676 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 42 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 122.16ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:42,676 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 0 Invalid, 119 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 122.16ms Time] [2021-08-29 16:16:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-08-29 16:16:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-08-29 16:16:42,684 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) [2021-08-29 16:16:42,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-08-29 16:16:42,685 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-08-29 16:16:42,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:42,685 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-08-29 16:16:42,685 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) [2021-08-29 16:16:42,686 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-08-29 16:16:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-29 16:16:42,686 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:42,686 INFO L513 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] [2021-08-29 16:16:42,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 16:16:42,687 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:42,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:42,687 INFO L82 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2021-08-29 16:16:42,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:42,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86521790] [2021-08-29 16:16:42,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:42,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:42,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:42,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86521790] [2021-08-29 16:16:42,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86521790] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:42,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:42,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:16:42,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384139754] [2021-08-29 16:16:42,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:42,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:42,753 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) [2021-08-29 16:16:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:43,084 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2021-08-29 16:16:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:16:43,084 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 [2021-08-29 16:16:43,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:43,085 INFO L225 Difference]: With dead ends: 253 [2021-08-29 16:16:43,086 INFO L226 Difference]: Without dead ends: 187 [2021-08-29 16:16:43,086 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.85ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:43,087 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 190 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 223.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.63ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 290.38ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:43,087 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 0 Invalid, 365 Unknown, 0 Unchecked, 2.63ms Time], IncrementalHoareTripleChecker [7 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 290.38ms Time] [2021-08-29 16:16:43,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-08-29 16:16:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-08-29 16:16:43,098 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) [2021-08-29 16:16:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2021-08-29 16:16:43,098 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2021-08-29 16:16:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:43,099 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2021-08-29 16:16:43,099 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) [2021-08-29 16:16:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2021-08-29 16:16:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 16:16:43,100 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:43,100 INFO L513 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] [2021-08-29 16:16:43,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 16:16:43,101 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:43,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2021-08-29 16:16:43,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:43,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907583677] [2021-08-29 16:16:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:43,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:43,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:43,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907583677] [2021-08-29 16:16:43,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907583677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:43,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:43,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 16:16:43,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523930394] [2021-08-29 16:16:43,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 16:16:43,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 16:16:43,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 16:16:43,143 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) [2021-08-29 16:16:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:43,371 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2021-08-29 16:16:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 16:16:43,372 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 [2021-08-29 16:16:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:43,373 INFO L225 Difference]: With dead ends: 238 [2021-08-29 16:16:43,373 INFO L226 Difference]: Without dead ends: 172 [2021-08-29 16:16:43,374 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.45ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 16:16:43,374 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 75 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 216.17ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:43,375 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 0 Invalid, 255 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 216.17ms Time] [2021-08-29 16:16:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-29 16:16:43,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-08-29 16:16:43,396 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) [2021-08-29 16:16:43,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-08-29 16:16:43,396 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2021-08-29 16:16:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:43,397 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-08-29 16:16:43,397 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) [2021-08-29 16:16:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2021-08-29 16:16:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 16:16:43,400 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:43,400 INFO L513 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] [2021-08-29 16:16:43,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 16:16:43,401 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:43,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1134458392, now seen corresponding path program 1 times [2021-08-29 16:16:43,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:43,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410374184] [2021-08-29 16:16:43,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:43,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:43,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:43,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:43,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410374184] [2021-08-29 16:16:43,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410374184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:43,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:43,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 16:16:43,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904445443] [2021-08-29 16:16:43,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 16:16:43,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:43,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 16:16:43,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 16:16:43,459 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) [2021-08-29 16:16:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:43,757 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2021-08-29 16:16:43,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:16:43,758 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 [2021-08-29 16:16:43,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:43,759 INFO L225 Difference]: With dead ends: 473 [2021-08-29 16:16:43,760 INFO L226 Difference]: Without dead ends: 352 [2021-08-29 16:16:43,760 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:43,761 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 131 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 213.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.46ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 269.83ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:43,761 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 0 Invalid, 377 Unknown, 0 Unchecked, 1.46ms Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 269.83ms Time] [2021-08-29 16:16:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-08-29 16:16:43,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2021-08-29 16:16:43,775 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) [2021-08-29 16:16:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2021-08-29 16:16:43,776 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2021-08-29 16:16:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:43,776 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2021-08-29 16:16:43,776 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) [2021-08-29 16:16:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2021-08-29 16:16:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-29 16:16:43,777 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:43,777 INFO L513 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] [2021-08-29 16:16:43,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 16:16:43,778 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:43,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:43,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1527485402, now seen corresponding path program 1 times [2021-08-29 16:16:43,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:43,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210994246] [2021-08-29 16:16:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:43,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:43,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:43,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210994246] [2021-08-29 16:16:43,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210994246] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:43,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:43,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 16:16:43,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568084487] [2021-08-29 16:16:43,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 16:16:43,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:43,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 16:16:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-29 16:16:43,832 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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) [2021-08-29 16:16:44,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:44,271 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2021-08-29 16:16:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-29 16:16:44,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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 [2021-08-29 16:16:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:44,274 INFO L225 Difference]: With dead ends: 592 [2021-08-29 16:16:44,274 INFO L226 Difference]: Without dead ends: 429 [2021-08-29 16:16:44,275 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 55.30ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-29 16:16:44,275 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 437 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.71ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 357.08ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:44,276 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 0 Invalid, 456 Unknown, 0 Unchecked, 2.71ms Time], IncrementalHoareTripleChecker [6 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 357.08ms Time] [2021-08-29 16:16:44,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-08-29 16:16:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2021-08-29 16:16:44,296 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) [2021-08-29 16:16:44,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2021-08-29 16:16:44,296 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2021-08-29 16:16:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:44,298 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2021-08-29 16:16:44,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 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) [2021-08-29 16:16:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2021-08-29 16:16:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-29 16:16:44,300 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:44,300 INFO L513 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] [2021-08-29 16:16:44,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 16:16:44,300 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:44,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:44,301 INFO L82 PathProgramCache]: Analyzing trace with hash -987336539, now seen corresponding path program 1 times [2021-08-29 16:16:44,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:44,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029078526] [2021-08-29 16:16:44,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:44,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:44,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:44,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029078526] [2021-08-29 16:16:44,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029078526] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:44,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:44,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:44,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178894826] [2021-08-29 16:16:44,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:16:44,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:44,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:16:44,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:44,372 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) 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) [2021-08-29 16:16:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:44,905 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2021-08-29 16:16:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 16:16:44,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) 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 [2021-08-29 16:16:44,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:44,908 INFO L225 Difference]: With dead ends: 912 [2021-08-29 16:16:44,908 INFO L226 Difference]: Without dead ends: 740 [2021-08-29 16:16:44,909 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 36.97ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-29 16:16:44,909 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 470 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.65ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 438.29ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:44,909 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 0 Invalid, 639 Unknown, 0 Unchecked, 3.65ms Time], IncrementalHoareTripleChecker [14 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 438.29ms Time] [2021-08-29 16:16:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-08-29 16:16:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2021-08-29 16:16:44,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.3204747774480712) internal successors, (445), 337 states have internal predecessors, (445), 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) [2021-08-29 16:16:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2021-08-29 16:16:44,938 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2021-08-29 16:16:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:44,938 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2021-08-29 16:16:44,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) 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) [2021-08-29 16:16:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2021-08-29 16:16:44,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-29 16:16:44,939 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:44,939 INFO L513 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] [2021-08-29 16:16:44,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 16:16:44,939 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:44,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:44,940 INFO L82 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2021-08-29 16:16:44,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:44,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783262982] [2021-08-29 16:16:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:44,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:44,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:44,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:44,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783262982] [2021-08-29 16:16:44,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783262982] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:44,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:44,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:44,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178370298] [2021-08-29 16:16:44,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:44,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:44,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:44,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:44,983 INFO L87 Difference]: Start difference. First operand 338 states and 445 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) [2021-08-29 16:16:45,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:45,360 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2021-08-29 16:16:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:16:45,361 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 [2021-08-29 16:16:45,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:45,363 INFO L225 Difference]: With dead ends: 752 [2021-08-29 16:16:45,363 INFO L226 Difference]: Without dead ends: 510 [2021-08-29 16:16:45,364 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.51ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 16:16:45,364 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 210 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 241.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.83ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 313.25ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:45,364 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 0 Invalid, 463 Unknown, 0 Unchecked, 1.83ms Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 313.25ms Time] [2021-08-29 16:16:45,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-08-29 16:16:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2021-08-29 16:16:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.3081570996978853) internal successors, (433), 331 states have internal predecessors, (433), 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) [2021-08-29 16:16:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2021-08-29 16:16:45,390 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2021-08-29 16:16:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:45,390 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2021-08-29 16:16:45,390 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) [2021-08-29 16:16:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2021-08-29 16:16:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-29 16:16:45,391 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:45,392 INFO L513 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] [2021-08-29 16:16:45,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 16:16:45,392 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:45,393 INFO L82 PathProgramCache]: Analyzing trace with hash -771750108, now seen corresponding path program 1 times [2021-08-29 16:16:45,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:45,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807504853] [2021-08-29 16:16:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:45,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 16:16:45,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:45,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807504853] [2021-08-29 16:16:45,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807504853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:45,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:45,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:45,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633633139] [2021-08-29 16:16:45,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:45,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:45,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:45,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:45,444 INFO L87 Difference]: Start difference. First operand 332 states and 433 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) [2021-08-29 16:16:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:45,718 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2021-08-29 16:16:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:16:45,719 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 [2021-08-29 16:16:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:45,721 INFO L225 Difference]: With dead ends: 753 [2021-08-29 16:16:45,721 INFO L226 Difference]: Without dead ends: 427 [2021-08-29 16:16:45,722 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.10ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 16:16:45,722 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 168.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.39ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:45,723 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [4 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 225.39ms Time] [2021-08-29 16:16:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-08-29 16:16:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2021-08-29 16:16:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.2900302114803626) internal successors, (427), 331 states have internal predecessors, (427), 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) [2021-08-29 16:16:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2021-08-29 16:16:45,750 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2021-08-29 16:16:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:45,751 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2021-08-29 16:16:45,751 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) [2021-08-29 16:16:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2021-08-29 16:16:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-29 16:16:45,752 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:45,752 INFO L513 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] [2021-08-29 16:16:45,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 16:16:45,752 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:45,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:45,753 INFO L82 PathProgramCache]: Analyzing trace with hash -844136666, now seen corresponding path program 1 times [2021-08-29 16:16:45,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:45,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772808773] [2021-08-29 16:16:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:45,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:45,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-29 16:16:45,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:45,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772808773] [2021-08-29 16:16:45,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772808773] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:45,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:45,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 16:16:45,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994504488] [2021-08-29 16:16:45,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:16:45,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:45,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:16:45,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:45,801 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-08-29 16:16:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:46,072 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2021-08-29 16:16:46,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:16:46,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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 [2021-08-29 16:16:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:46,079 INFO L225 Difference]: With dead ends: 676 [2021-08-29 16:16:46,079 INFO L226 Difference]: Without dead ends: 350 [2021-08-29 16:16:46,079 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.89ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 16:16:46,080 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 229 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.54ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.77ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:46,080 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 0 Invalid, 250 Unknown, 0 Unchecked, 1.54ms Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 220.77ms Time] [2021-08-29 16:16:46,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-08-29 16:16:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2021-08-29 16:16:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.2867924528301886) internal successors, (341), 265 states have internal predecessors, (341), 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) [2021-08-29 16:16:46,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2021-08-29 16:16:46,114 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2021-08-29 16:16:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:46,114 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2021-08-29 16:16:46,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 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) [2021-08-29 16:16:46,114 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2021-08-29 16:16:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-29 16:16:46,116 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:46,116 INFO L513 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] [2021-08-29 16:16:46,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 16:16:46,116 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:46,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:46,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1409435414, now seen corresponding path program 1 times [2021-08-29 16:16:46,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:46,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863790437] [2021-08-29 16:16:46,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:46,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-29 16:16:46,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:46,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863790437] [2021-08-29 16:16:46,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863790437] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:46,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:46,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:46,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028000070] [2021-08-29 16:16:46,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:46,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:46,178 INFO L87 Difference]: Start difference. First operand 266 states and 341 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) [2021-08-29 16:16:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:46,560 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2021-08-29 16:16:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 16:16:46,561 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 [2021-08-29 16:16:46,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:46,563 INFO L225 Difference]: With dead ends: 878 [2021-08-29 16:16:46,563 INFO L226 Difference]: Without dead ends: 666 [2021-08-29 16:16:46,564 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.77ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 16:16:46,564 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 272 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.97ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 315.05ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:46,564 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 0 Invalid, 429 Unknown, 0 Unchecked, 1.97ms Time], IncrementalHoareTripleChecker [1 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 315.05ms Time] [2021-08-29 16:16:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-08-29 16:16:46,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2021-08-29 16:16:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.2804428044280443) internal successors, (347), 271 states have internal predecessors, (347), 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) [2021-08-29 16:16:46,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2021-08-29 16:16:46,589 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2021-08-29 16:16:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:46,589 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2021-08-29 16:16:46,589 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) [2021-08-29 16:16:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2021-08-29 16:16:46,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-29 16:16:46,590 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:46,590 INFO L513 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] [2021-08-29 16:16:46,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 16:16:46,591 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:46,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1802462424, now seen corresponding path program 1 times [2021-08-29 16:16:46,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:46,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714094839] [2021-08-29 16:16:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:46,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-29 16:16:46,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:46,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714094839] [2021-08-29 16:16:46,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714094839] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:46,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:46,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:46,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142870311] [2021-08-29 16:16:46,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:46,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:46,642 INFO L87 Difference]: Start difference. First operand 272 states and 347 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) [2021-08-29 16:16:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:47,094 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2021-08-29 16:16:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 16:16:47,094 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 [2021-08-29 16:16:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:47,097 INFO L225 Difference]: With dead ends: 708 [2021-08-29 16:16:47,097 INFO L226 Difference]: Without dead ends: 706 [2021-08-29 16:16:47,097 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.83ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-29 16:16:47,098 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 275 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 280.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 371.91ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:47,098 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 0 Invalid, 552 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [5 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 371.91ms Time] [2021-08-29 16:16:47,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-08-29 16:16:47,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2021-08-29 16:16:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.2730627306273063) internal successors, (345), 271 states have internal predecessors, (345), 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) [2021-08-29 16:16:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2021-08-29 16:16:47,136 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2021-08-29 16:16:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:47,136 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2021-08-29 16:16:47,136 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) [2021-08-29 16:16:47,136 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2021-08-29 16:16:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-29 16:16:47,137 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:47,137 INFO L513 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] [2021-08-29 16:16:47,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 16:16:47,137 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:47,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2021-08-29 16:16:47,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:47,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99675958] [2021-08-29 16:16:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:47,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:47,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:47,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99675958] [2021-08-29 16:16:47,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99675958] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 16:16:47,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095302182] [2021-08-29 16:16:47,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:47,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 16:16:47,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 16:16:47,198 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) [2021-08-29 16:16:47,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 16:16:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:47,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-29 16:16:47,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 16:16:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:47,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 16:16:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 16:16:47,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095302182] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 16:16:47,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 16:16:47,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2021-08-29 16:16:47,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882678207] [2021-08-29 16:16:47,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 16:16:47,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 16:16:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:47,676 INFO L87 Difference]: Start difference. First operand 272 states and 345 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) [2021-08-29 16:16:48,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:48,180 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2021-08-29 16:16:48,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 16:16:48,181 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 [2021-08-29 16:16:48,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:48,183 INFO L225 Difference]: With dead ends: 855 [2021-08-29 16:16:48,183 INFO L226 Difference]: Without dead ends: 637 [2021-08-29 16:16:48,185 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 47.38ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-08-29 16:16:48,186 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 275 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 287.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 394.91ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:48,186 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 0 Invalid, 520 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [17 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 394.91ms Time] [2021-08-29 16:16:48,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-08-29 16:16:48,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2021-08-29 16:16:48,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.2857142857142858) internal successors, (495), 385 states have internal predecessors, (495), 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) [2021-08-29 16:16:48,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2021-08-29 16:16:48,220 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2021-08-29 16:16:48,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:48,220 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2021-08-29 16:16:48,220 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) [2021-08-29 16:16:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2021-08-29 16:16:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-29 16:16:48,221 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:48,221 INFO L513 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] [2021-08-29 16:16:48,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 16:16:48,436 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,SelfDestructingSolverStorable14 [2021-08-29 16:16:48,436 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:48,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1916895271, now seen corresponding path program 2 times [2021-08-29 16:16:48,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:48,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39236957] [2021-08-29 16:16:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:48,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-29 16:16:48,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:48,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39236957] [2021-08-29 16:16:48,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39236957] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:48,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:48,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 16:16:48,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123513180] [2021-08-29 16:16:48,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 16:16:48,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:48,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 16:16:48,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 16:16:48,526 INFO L87 Difference]: Start difference. First operand 386 states and 495 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) [2021-08-29 16:16:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:48,871 INFO L93 Difference]: Finished difference Result 1132 states and 1477 transitions. [2021-08-29 16:16:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 16:16:48,871 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 [2021-08-29 16:16:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:48,875 INFO L225 Difference]: With dead ends: 1132 [2021-08-29 16:16:48,876 INFO L226 Difference]: Without dead ends: 798 [2021-08-29 16:16:48,876 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.51ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-29 16:16:48,877 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 183 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 199.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 259.09ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:48,877 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 0 Invalid, 327 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [5 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 259.09ms Time] [2021-08-29 16:16:48,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2021-08-29 16:16:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 532. [2021-08-29 16:16:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 531 states have (on average 1.2787193973634652) internal successors, (679), 531 states have internal predecessors, (679), 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) [2021-08-29 16:16:48,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2021-08-29 16:16:48,925 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2021-08-29 16:16:48,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:48,925 INFO L470 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2021-08-29 16:16:48,925 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) [2021-08-29 16:16:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2021-08-29 16:16:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-29 16:16:48,926 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 16:16:48,926 INFO L513 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] [2021-08-29 16:16:48,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 16:16:48,927 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 16:16:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 16:16:48,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2103312411, now seen corresponding path program 1 times [2021-08-29 16:16:48,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 16:16:48,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243643439] [2021-08-29 16:16:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 16:16:48,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 16:16:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 16:16:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-29 16:16:48,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 16:16:48,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243643439] [2021-08-29 16:16:48,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243643439] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 16:16:48,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 16:16:48,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-29 16:16:48,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477748279] [2021-08-29 16:16:48,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 16:16:48,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 16:16:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 16:16:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-29 16:16:48,979 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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) [2021-08-29 16:16:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 16:16:49,347 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2021-08-29 16:16:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 16:16:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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 [2021-08-29 16:16:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 16:16:49,347 INFO L225 Difference]: With dead ends: 934 [2021-08-29 16:16:49,348 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 16:16:49,349 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.73ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-29 16:16:49,349 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 264 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 290.68ms IncrementalHoareTripleChecker+Time [2021-08-29 16:16:49,350 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 0 Invalid, 330 Unknown, 0 Unchecked, 1.90ms Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 290.68ms Time] [2021-08-29 16:16:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 16:16:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 16:16:49,350 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) [2021-08-29 16:16:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 16:16:49,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-08-29 16:16:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 16:16:49,351 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 16:16:49,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 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) [2021-08-29 16:16:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 16:16:49,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 16:16:49,354 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 16:16:49,354 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-08-29 16:16:49,354 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-08-29 16:16:49,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 16:16:49,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 16:16:49,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:49,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:50,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:51,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 16:16:57,498 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,498 INFO L854 garLoopResultBuilder]: At program point L564(lines 560 566) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) [2021-08-29 16:16:57,498 INFO L854 garLoopResultBuilder]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-08-29 16:16:57,499 INFO L854 garLoopResultBuilder]: At program point L102(lines 55 103) the Hoare annotation is: false [2021-08-29 16:16:57,499 INFO L854 garLoopResultBuilder]: At program point L135-1(lines 135 141) the Hoare annotation is: false [2021-08-29 16:16:57,499 INFO L854 garLoopResultBuilder]: At program point L135-2(lines 135 141) the Hoare annotation is: false [2021-08-29 16:16:57,499 INFO L854 garLoopResultBuilder]: At program point L500(lines 495 503) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) [2021-08-29 16:16:57,499 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-08-29 16:16:57,499 INFO L858 garLoopResultBuilder]: For program point L370-3(lines 370 374) no Hoare annotation was computed. [2021-08-29 16:16:57,499 INFO L858 garLoopResultBuilder]: For program point L370-6(lines 370 374) no Hoare annotation was computed. [2021-08-29 16:16:57,499 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-2(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-3(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-5(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-6(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-8(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-9(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,500 INFO L858 garLoopResultBuilder]: For program point L306-11(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L858 garLoopResultBuilder]: For program point L306-12(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L858 garLoopResultBuilder]: For program point L306-14(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L858 garLoopResultBuilder]: For program point L306-15(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L858 garLoopResultBuilder]: For program point L306-17(lines 306 310) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L854 garLoopResultBuilder]: At program point L439(lines 434 442) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~7 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse1 .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) .cse3 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-08-29 16:16:57,501 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,501 INFO L854 garLoopResultBuilder]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2021-08-29 16:16:57,502 INFO L854 garLoopResultBuilder]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2021-08-29 16:16:57,502 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 82) no Hoare annotation was computed. [2021-08-29 16:16:57,502 INFO L854 garLoopResultBuilder]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) .cse4 (= ~waterLevel~0 1)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse3 .cse4 .cse5))) [2021-08-29 16:16:57,502 INFO L854 garLoopResultBuilder]: At program point L407(lines 402 410) the Hoare annotation is: false [2021-08-29 16:16:57,502 INFO L854 garLoopResultBuilder]: At program point L407-1(lines 402 410) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))) [2021-08-29 16:16:57,502 INFO L854 garLoopResultBuilder]: At program point L407-2(lines 402 410) the Hoare annotation is: false [2021-08-29 16:16:57,503 INFO L854 garLoopResultBuilder]: At program point L407-3(lines 402 410) the Hoare annotation is: false [2021-08-29 16:16:57,503 INFO L854 garLoopResultBuilder]: At program point L407-4(lines 402 410) the Hoare annotation is: false [2021-08-29 16:16:57,503 INFO L854 garLoopResultBuilder]: At program point L407-5(lines 402 410) the Hoare annotation is: false [2021-08-29 16:16:57,503 INFO L858 garLoopResultBuilder]: For program point L971(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,503 INFO L858 garLoopResultBuilder]: For program point L971-1(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,503 INFO L858 garLoopResultBuilder]: For program point L971-2(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,503 INFO L854 garLoopResultBuilder]: At program point L312(lines 297 315) the Hoare annotation is: false [2021-08-29 16:16:57,503 INFO L854 garLoopResultBuilder]: At program point L312-1(lines 297 315) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse6 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0)) (.cse0 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0))) (or (and (not .cse0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) .cse4 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) (not .cse5) .cse6 (<= 1 ~waterLevel~0)) (and .cse1 .cse3 (<= 2 ~waterLevel~0) (not .cse4) (= ULTIMATE.start_main_~tmp~7 1) .cse6 (not .cse2) (= |ULTIMATE.start_valid_product_#res| 1) .cse5 .cse0))) [2021-08-29 16:16:57,504 INFO L854 garLoopResultBuilder]: At program point L312-2(lines 297 315) the Hoare annotation is: false [2021-08-29 16:16:57,504 INFO L854 garLoopResultBuilder]: At program point L312-3(lines 297 315) the Hoare annotation is: false [2021-08-29 16:16:57,504 INFO L854 garLoopResultBuilder]: At program point L312-4(lines 297 315) the Hoare annotation is: false [2021-08-29 16:16:57,504 INFO L854 garLoopResultBuilder]: At program point L312-5(lines 297 315) the Hoare annotation is: false [2021-08-29 16:16:57,504 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 359) no Hoare annotation was computed. [2021-08-29 16:16:57,504 INFO L854 garLoopResultBuilder]: At program point L346-1(lines 1 974) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0) .cse4 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) .cse4 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))))) [2021-08-29 16:16:57,505 INFO L858 garLoopResultBuilder]: For program point L346-2(lines 346 359) no Hoare annotation was computed. [2021-08-29 16:16:57,505 INFO L854 garLoopResultBuilder]: At program point L346-3(lines 1 974) the Hoare annotation is: false [2021-08-29 16:16:57,505 INFO L858 garLoopResultBuilder]: For program point L346-4(lines 346 359) no Hoare annotation was computed. [2021-08-29 16:16:57,505 INFO L854 garLoopResultBuilder]: At program point L346-5(lines 1 974) the Hoare annotation is: false [2021-08-29 16:16:57,505 INFO L854 garLoopResultBuilder]: At program point L248(lines 241 251) the Hoare annotation is: false [2021-08-29 16:16:57,505 INFO L854 garLoopResultBuilder]: At program point L248-1(lines 241 251) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0))) [2021-08-29 16:16:57,505 INFO L854 garLoopResultBuilder]: At program point L248-2(lines 241 251) the Hoare annotation is: false [2021-08-29 16:16:57,506 INFO L854 garLoopResultBuilder]: At program point L248-3(lines 241 251) the Hoare annotation is: false [2021-08-29 16:16:57,506 INFO L854 garLoopResultBuilder]: At program point L248-4(lines 241 251) the Hoare annotation is: false [2021-08-29 16:16:57,506 INFO L854 garLoopResultBuilder]: At program point L248-5(lines 241 251) the Hoare annotation is: false [2021-08-29 16:16:57,506 INFO L858 garLoopResultBuilder]: For program point L447(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,506 INFO L858 garLoopResultBuilder]: For program point L447-1(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,506 INFO L858 garLoopResultBuilder]: For program point L447-2(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,506 INFO L858 garLoopResultBuilder]: For program point L447-3(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,506 INFO L858 garLoopResultBuilder]: For program point L447-4(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L447-5(lines 447 453) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 386) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L350-2(lines 350 356) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L350-4(lines 350 356) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 97) no Hoare annotation was computed. [2021-08-29 16:16:57,507 INFO L854 garLoopResultBuilder]: At program point L516-2(lines 516 530) the Hoare annotation is: false [2021-08-29 16:16:57,508 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 203) no Hoare annotation was computed. [2021-08-29 16:16:57,508 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 186 203) no Hoare annotation was computed. [2021-08-29 16:16:57,508 INFO L858 garLoopResultBuilder]: For program point L186-2(lines 186 203) no Hoare annotation was computed. [2021-08-29 16:16:57,508 INFO L858 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2021-08-29 16:16:57,508 INFO L854 garLoopResultBuilder]: At program point L452(lines 443 456) the Hoare annotation is: false [2021-08-29 16:16:57,508 INFO L854 garLoopResultBuilder]: At program point L452-1(lines 443 456) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse2 (= |ULTIMATE.start_valid_product_#res| 1)))) [2021-08-29 16:16:57,508 INFO L854 garLoopResultBuilder]: At program point L452-2(lines 443 456) the Hoare annotation is: false [2021-08-29 16:16:57,508 INFO L854 garLoopResultBuilder]: At program point L452-3(lines 443 456) the Hoare annotation is: false [2021-08-29 16:16:57,509 INFO L854 garLoopResultBuilder]: At program point L452-4(lines 443 456) the Hoare annotation is: false [2021-08-29 16:16:57,509 INFO L854 garLoopResultBuilder]: At program point L452-5(lines 443 456) the Hoare annotation is: false [2021-08-29 16:16:57,509 INFO L858 garLoopResultBuilder]: For program point L57(lines 56 101) no Hoare annotation was computed. [2021-08-29 16:16:57,509 INFO L858 garLoopResultBuilder]: For program point L520(lines 520 524) no Hoare annotation was computed. [2021-08-29 16:16:57,509 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 128 134) no Hoare annotation was computed. [2021-08-29 16:16:57,509 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 16:16:57,509 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 198) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L223-2(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 190 198) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L190-2(lines 190 198) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L223-4(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 62) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L223-6(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,510 INFO L858 garLoopResultBuilder]: For program point L223-8(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,511 INFO L858 garLoopResultBuilder]: For program point L223-10(lines 223 229) no Hoare annotation was computed. [2021-08-29 16:16:57,511 INFO L858 garLoopResultBuilder]: For program point L587(lines 587 594) no Hoare annotation was computed. [2021-08-29 16:16:57,511 INFO L861 garLoopResultBuilder]: At program point L587-1(lines 587 594) the Hoare annotation is: true [2021-08-29 16:16:57,511 INFO L854 garLoopResultBuilder]: At program point L257(lines 252 260) the Hoare annotation is: false [2021-08-29 16:16:57,511 INFO L854 garLoopResultBuilder]: At program point L257-1(lines 252 260) the Hoare annotation is: false [2021-08-29 16:16:57,511 INFO L854 garLoopResultBuilder]: At program point L257-2(lines 252 260) the Hoare annotation is: false [2021-08-29 16:16:57,511 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 96) no Hoare annotation was computed. [2021-08-29 16:16:57,511 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 128 134) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L325-3(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L325-5(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L325-6(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,512 INFO L858 garLoopResultBuilder]: For program point L160-2(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point L160-3(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point L325-8(lines 325 329) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point L160-4(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point L160-5(lines 160 177) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L854 garLoopResultBuilder]: At program point L128(lines 127 146) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse4 .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| 1) (= ~waterLevel~0 1)) (and .cse0 .cse4 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) .cse3))) [2021-08-29 16:16:57,513 INFO L858 garLoopResultBuilder]: For program point L128-1(lines 128 134) no Hoare annotation was computed. [2021-08-29 16:16:57,513 INFO L854 garLoopResultBuilder]: At program point L128-2(lines 127 146) the Hoare annotation is: false [2021-08-29 16:16:57,514 INFO L854 garLoopResultBuilder]: At program point L128-3(lines 127 146) the Hoare annotation is: false [2021-08-29 16:16:57,514 INFO L854 garLoopResultBuilder]: At program point L492(lines 1 974) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-29 16:16:57,514 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 398) no Hoare annotation was computed. [2021-08-29 16:16:57,514 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,514 INFO L858 garLoopResultBuilder]: For program point L164-1(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,514 INFO L858 garLoopResultBuilder]: For program point L164-2(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,514 INFO L858 garLoopResultBuilder]: For program point L164-3(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,515 INFO L858 garLoopResultBuilder]: For program point L164-4(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,515 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 16:16:57,515 INFO L858 garLoopResultBuilder]: For program point L164-5(lines 164 172) no Hoare annotation was computed. [2021-08-29 16:16:57,515 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2021-08-29 16:16:57,515 INFO L854 garLoopResultBuilder]: At program point L462(lines 457 465) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_activatePump_~tmp~3 0) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-08-29 16:16:57,515 INFO L854 garLoopResultBuilder]: At program point L462-1(lines 457 465) the Hoare annotation is: false [2021-08-29 16:16:57,515 INFO L854 garLoopResultBuilder]: At program point L462-2(lines 457 465) the Hoare annotation is: false [2021-08-29 16:16:57,516 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 72) no Hoare annotation was computed. [2021-08-29 16:16:57,516 INFO L854 garLoopResultBuilder]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse7 (<= 1 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse6 (= ULTIMATE.start_main_~tmp~7 ~systemActive~0)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse6 .cse4 .cse7 .cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse1 (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse7) (and .cse0 (= ULTIMATE.start_activatePump_~tmp~3 0) .cse2 .cse6 .cse4 .cse5))) [2021-08-29 16:16:57,516 INFO L854 garLoopResultBuilder]: At program point L331(lines 316 334) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (= ULTIMATE.start_main_~tmp~7 1) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0)) [2021-08-29 16:16:57,516 INFO L854 garLoopResultBuilder]: At program point L331-1(lines 316 334) the Hoare annotation is: false [2021-08-29 16:16:57,516 INFO L854 garLoopResultBuilder]: At program point L331-2(lines 316 334) the Hoare annotation is: false [2021-08-29 16:16:57,516 INFO L861 garLoopResultBuilder]: At program point L596(lines 577 599) the Hoare annotation is: true [2021-08-29 16:16:57,520 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 16:16:57,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:16:57 BoogieIcfgContainer [2021-08-29 16:16:57,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 16:16:57,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 16:16:57,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 16:16:57,542 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 16:16:57,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:16:41" (3/4) ... [2021-08-29 16:16:57,545 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 16:16:57,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-29 16:16:57,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-29 16:16:57,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 16:16:57,563 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-29 16:16:57,564 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 16:16:57,565 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:57,565 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 16:16:57,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == 1) && waterLevel == 1 [2021-08-29 16:16:57,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1 [2021-08-29 16:16:57,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result) || ((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || ((((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && 2 <= tmp) && !(tmp == 0)) [2021-08-29 16:16:57,584 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 1) && 1 == systemActive) && \result == 1) || (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-08-29 16:16:57,585 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && waterLevel == 1)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-08-29 16:16:57,585 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && \result == systemActive) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) [2021-08-29 16:16:57,586 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) || ((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0)) [2021-08-29 16:16:57,586 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(tmp == 0)) [2021-08-29 16:16:57,587 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && \result == systemActive) && \result == 0) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel [2021-08-29 16:16:57,587 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) [2021-08-29 16:16:57,588 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0 && \result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && tmp == 0 [2021-08-29 16:16:57,588 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == systemActive) && \result == 0) && tmp == systemActive) && !(tmp == 0)) && 1 == systemActive) && 1 <= waterLevel) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) [2021-08-29 16:16:57,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) [2021-08-29 16:16:57,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) [2021-08-29 16:16:57,638 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 16:16:57,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 16:16:57,638 INFO L158 Benchmark]: Toolchain (without parser) took 17729.24ms. Allocated memory was 54.5MB in the beginning and 264.2MB in the end (delta: 209.7MB). Free memory was 30.7MB in the beginning and 222.8MB in the end (delta: -192.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,639 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 16:16:57,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.07ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 42.5MB in the end (delta: -11.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.13ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 38.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,640 INFO L158 Benchmark]: Boogie Preprocessor took 69.22ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 35.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,640 INFO L158 Benchmark]: RCFGBuilder took 710.36ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 31.9MB in the end (delta: 3.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,640 INFO L158 Benchmark]: TraceAbstraction took 16367.41ms. Allocated memory was 67.1MB in the beginning and 264.2MB in the end (delta: 197.1MB). Free memory was 31.3MB in the beginning and 234.4MB in the end (delta: -203.1MB). Peak memory consumption was 145.6MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,641 INFO L158 Benchmark]: Witness Printer took 96.49ms. Allocated memory is still 264.2MB. Free memory was 234.4MB in the beginning and 222.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 16:16:57,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 37.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.07ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 42.5MB in the end (delta: -11.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.13ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 38.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.22ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 35.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.36ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 31.9MB in the end (delta: 3.5MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16367.41ms. Allocated memory was 67.1MB in the beginning and 264.2MB in the end (delta: 197.1MB). Free memory was 31.3MB in the beginning and 234.4MB in the end (delta: -203.1MB). Peak memory consumption was 145.6MB. Max. memory is 16.1GB. * Witness Printer took 96.49ms. Allocated memory is still 264.2MB. Free memory was 234.4MB in the beginning and 222.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 971]: 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: 16299.78ms, OverallIterations: 17, TraceHistogramMax: 3, EmptinessCheckTime: 25.49ms, AutomataDifference: 5643.54ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 8142.56ms, InitialAbstractionConstructionTime: 10.69ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3434 SdHoareTripleChecker+Valid, 4579.27ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3434 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3480.43ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3238 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5679 IncrementalHoareTripleChecker+Invalid, 5762 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 0 mSDtfsCounter, 5679 mSolverCounterSat, 30.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 379.72ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 399.83ms AutomataMinimizationTime, 17 MinimizatonAttempts, 2615 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 196 NumberOfFragments, 739 HoareAnnotationTreeSize, 54 FomulaSimplifications, 27978733 FormulaSimplificationTreeSizeReduction, 2547.09ms HoareSimplificationTime, 54 FomulaSimplificationsInter, 9047681 FormulaSimplificationTreeSizeReductionInter, 5575.32ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 79.92ms SsaConstructionTime, 383.19ms SatisfiabilityAnalysisTime, 1114.62ms InterpolantComputationTime, 746 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 782 ConstructedInterpolants, 0 QuantifiedInterpolants, 1327 SizeOfPredicates, 3 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 187/196 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: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && \result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && tmp == 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && \result == systemActive) && \result == 0) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result) || ((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || ((((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && 2 <= tmp) && !(tmp == 0)) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == systemActive) && \result == 0) && tmp == systemActive) && !(tmp == 0)) && 1 == systemActive) && 1 <= waterLevel) || (((((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: ((((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) || ((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && tmp == 0) && \result == 0) && !(tmp == 0)) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && tmp == 1) && 1 == systemActive) && waterLevel == 1)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == 1) && waterLevel == 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && \result == systemActive) && tmp == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) || (((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == 1) && waterLevel == 1)) || (((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((((((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && !(\result == 0)) && tmp == 1) && 1 == systemActive) && !(tmp___0 == 0)) && \result == 1) && 2 <= \result) && tmp == 0) && \result == 0) && !(tmp == 0)) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 1) && 1 == systemActive) && \result == 1) || (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == systemActive) && 1 == systemActive) && 1 <= waterLevel) && \result == 1) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && pumpRunning == 0) && \result == systemActive) && methaneLevelCritical == 0) && tmp == 1) && 1 == systemActive) && 1 <= waterLevel)) || (((((splverifierCounter == 0 && tmp == 0) && 2 <= waterLevel) && tmp == systemActive) && 1 == systemActive) && \result == 1) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-29 16:16:57,695 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...