./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f34e156823368e08bfaeac3b7f4488efc17d7ca6 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:28:15,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:15,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:15,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:15,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:15,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:15,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:15,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:15,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:15,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:15,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:15,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:15,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:15,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:15,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:15,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:15,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:15,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:15,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:15,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:15,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:15,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:15,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:15,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:15,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:15,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:15,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:15,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:15,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:15,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:15,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:15,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:15,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:15,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:15,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:15,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:15,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:15,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:15,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:15,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:15,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:15,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:28:15,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:15,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:15,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:15,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:15,317 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:15,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:15,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:15,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:15,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:15,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:15,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:15,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:15,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:15,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:15,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:15,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:15,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:15,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:15,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:15,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:15,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:15,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:15,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:15,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:15,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:15,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:28:15,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:15,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:15,332 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2021-10-11 00:28:15,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:15,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:15,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:15,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:15,644 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:15,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-10-11 00:28:15,735 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/data/5c5e2a510/e201222603dc4583803890c97eef28a6/FLAGc5f0f7e07 [2021-10-11 00:28:16,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:16,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-10-11 00:28:16,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/data/5c5e2a510/e201222603dc4583803890c97eef28a6/FLAGc5f0f7e07 [2021-10-11 00:28:16,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/data/5c5e2a510/e201222603dc4583803890c97eef28a6 [2021-10-11 00:28:16,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:16,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:16,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:16,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:16,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:16,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:16" (1/1) ... [2021-10-11 00:28:16,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538f53b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:16, skipping insertion in model container [2021-10-11 00:28:16,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:16" (1/1) ... [2021-10-11 00:28:16,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:16,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:17,122 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2021-10-11 00:28:17,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:17,208 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:17,274 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2021-10-11 00:28:17,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:17,365 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:17,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17 WrapperNode [2021-10-11 00:28:17,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:17,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:17,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:17,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:17,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:17,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:17,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:17,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:17,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... [2021-10-11 00:28:17,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:17,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:17,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:17,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:17,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:17,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:17,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:17,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:17,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:19,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:19,176 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-10-11 00:28:19,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:19 BoogieIcfgContainer [2021-10-11 00:28:19,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:19,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:19,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:19,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:16" (1/3) ... [2021-10-11 00:28:19,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab0d5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:19, skipping insertion in model container [2021-10-11 00:28:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:17" (2/3) ... [2021-10-11 00:28:19,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab0d5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:19, skipping insertion in model container [2021-10-11 00:28:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:19" (3/3) ... [2021-10-11 00:28:19,187 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2021-10-11 00:28:19,203 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:19,207 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 00:28:19,227 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 00:28:19,258 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:19,258 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:19,258 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:19,259 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:19,259 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:19,259 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:19,259 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:19,259 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2021-10-11 00:28:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:28:19,287 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:19,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:19,289 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:19,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:19,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1138467236, now seen corresponding path program 1 times [2021-10-11 00:28:19,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:19,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717101972] [2021-10-11 00:28:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:19,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717101972] [2021-10-11 00:28:19,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:19,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:19,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176086087] [2021-10-11 00:28:19,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:19,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:19,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:19,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:19,646 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2021-10-11 00:28:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:19,716 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-10-11 00:28:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:19,718 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 00:28:19,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:19,750 INFO L225 Difference]: With dead ends: 264 [2021-10-11 00:28:19,750 INFO L226 Difference]: Without dead ends: 131 [2021-10-11 00:28:19,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:19,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-11 00:28:19,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-11 00:28:19,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-10-11 00:28:19,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-10-11 00:28:19,835 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-10-11 00:28:19,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:19,836 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-10-11 00:28:19,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-10-11 00:28:19,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:28:19,839 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:19,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:19,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:19,840 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:19,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:19,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1722273200, now seen corresponding path program 1 times [2021-10-11 00:28:19,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:19,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761407573] [2021-10-11 00:28:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:20,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761407573] [2021-10-11 00:28:20,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:20,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:20,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545729331] [2021-10-11 00:28:20,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:20,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:20,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:20,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,040 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2021-10-11 00:28:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:20,066 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-10-11 00:28:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:20,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 00:28:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:20,068 INFO L225 Difference]: With dead ends: 131 [2021-10-11 00:28:20,070 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 00:28:20,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 00:28:20,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 00:28:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 00:28:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-10-11 00:28:20,080 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-10-11 00:28:20,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:20,081 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-10-11 00:28:20,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-10-11 00:28:20,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 00:28:20,083 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:20,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:20,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:28:20,085 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:20,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:20,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2021-10-11 00:28:20,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:20,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163105369] [2021-10-11 00:28:20,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:20,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163105369] [2021-10-11 00:28:20,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:20,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:20,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388012976] [2021-10-11 00:28:20,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:20,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:20,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:20,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,170 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2021-10-11 00:28:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:20,197 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-10-11 00:28:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:20,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 00:28:20,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:20,199 INFO L225 Difference]: With dead ends: 100 [2021-10-11 00:28:20,199 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 00:28:20,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 00:28:20,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 00:28:20,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 00:28:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-10-11 00:28:20,205 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-10-11 00:28:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:20,205 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-10-11 00:28:20,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-10-11 00:28:20,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 00:28:20,207 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:20,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:20,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:28:20,207 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2021-10-11 00:28:20,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:20,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512338195] [2021-10-11 00:28:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:20,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:20,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512338195] [2021-10-11 00:28:20,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:20,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:20,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966107587] [2021-10-11 00:28:20,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:28:20,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:20,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:28:20,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,315 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2021-10-11 00:28:20,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:20,369 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-10-11 00:28:20,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:28:20,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 00:28:20,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:20,371 INFO L225 Difference]: With dead ends: 121 [2021-10-11 00:28:20,371 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 00:28:20,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:28:20,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 00:28:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-10-11 00:28:20,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 00:28:20,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-10-11 00:28:20,384 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-10-11 00:28:20,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:20,384 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-10-11 00:28:20,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:28:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-10-11 00:28:20,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 00:28:20,386 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:20,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:20,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:28:20,387 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:20,388 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2021-10-11 00:28:20,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:20,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392553087] [2021-10-11 00:28:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:20,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392553087] [2021-10-11 00:28:20,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:20,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:20,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294751795] [2021-10-11 00:28:20,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:20,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:20,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:20,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:20,545 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2021-10-11 00:28:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:20,685 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2021-10-11 00:28:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:28:20,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 00:28:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:20,689 INFO L225 Difference]: With dead ends: 253 [2021-10-11 00:28:20,689 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 00:28:20,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:28:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 00:28:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-10-11 00:28:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2021-10-11 00:28:20,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2021-10-11 00:28:20,716 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2021-10-11 00:28:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:20,717 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2021-10-11 00:28:20,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2021-10-11 00:28:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:20,727 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:20,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:20,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 00:28:20,728 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:20,728 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2021-10-11 00:28:20,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:20,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788174390] [2021-10-11 00:28:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:20,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788174390] [2021-10-11 00:28:20,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:20,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:20,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515575319] [2021-10-11 00:28:20,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:28:20,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:20,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:28:20,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:20,829 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2021-10-11 00:28:20,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:20,972 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2021-10-11 00:28:20,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:28:20,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 00:28:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:20,975 INFO L225 Difference]: With dead ends: 238 [2021-10-11 00:28:20,975 INFO L226 Difference]: Without dead ends: 172 [2021-10-11 00:28:20,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-11 00:28:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-10-11 00:28:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-10-11 00:28:20,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2021-10-11 00:28:20,994 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2021-10-11 00:28:20,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:20,994 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2021-10-11 00:28:20,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:28:20,995 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2021-10-11 00:28:20,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:20,996 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:20,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:20,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 00:28:20,997 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:20,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2021-10-11 00:28:20,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:20,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364388526] [2021-10-11 00:28:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:21,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364388526] [2021-10-11 00:28:21,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:21,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:21,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595077390] [2021-10-11 00:28:21,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:28:21,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:21,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:28:21,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:21,077 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2021-10-11 00:28:21,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:21,185 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2021-10-11 00:28:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:21,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 00:28:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:21,191 INFO L225 Difference]: With dead ends: 473 [2021-10-11 00:28:21,191 INFO L226 Difference]: Without dead ends: 352 [2021-10-11 00:28:21,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:21,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-10-11 00:28:21,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2021-10-11 00:28:21,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-10-11 00:28:21,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2021-10-11 00:28:21,251 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2021-10-11 00:28:21,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:21,252 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2021-10-11 00:28:21,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:28:21,252 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2021-10-11 00:28:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 00:28:21,253 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:21,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:21,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 00:28:21,254 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:21,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:21,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2021-10-11 00:28:21,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:21,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263602821] [2021-10-11 00:28:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:21,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263602821] [2021-10-11 00:28:21,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:21,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:21,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712811374] [2021-10-11 00:28:21,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:21,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:21,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:21,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:21,320 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 5 states. [2021-10-11 00:28:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:21,443 INFO L93 Difference]: Finished difference Result 512 states and 712 transitions. [2021-10-11 00:28:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:21,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 00:28:21,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:21,452 INFO L225 Difference]: With dead ends: 512 [2021-10-11 00:28:21,453 INFO L226 Difference]: Without dead ends: 349 [2021-10-11 00:28:21,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:28:21,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-10-11 00:28:21,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 178. [2021-10-11 00:28:21,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-10-11 00:28:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2021-10-11 00:28:21,490 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2021-10-11 00:28:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:21,492 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2021-10-11 00:28:21,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2021-10-11 00:28:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:28:21,499 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:21,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:21,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 00:28:21,501 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:21,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:21,502 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2021-10-11 00:28:21,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:21,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890157709] [2021-10-11 00:28:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:21,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890157709] [2021-10-11 00:28:21,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:21,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:21,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758180960] [2021-10-11 00:28:21,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:28:21,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:21,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:28:21,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:28:21,617 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2021-10-11 00:28:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:21,854 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2021-10-11 00:28:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:28:21,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-10-11 00:28:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:21,861 INFO L225 Difference]: With dead ends: 912 [2021-10-11 00:28:21,862 INFO L226 Difference]: Without dead ends: 740 [2021-10-11 00:28:21,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:28:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2021-10-11 00:28:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2021-10-11 00:28:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2021-10-11 00:28:21,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2021-10-11 00:28:21,935 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2021-10-11 00:28:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:21,937 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2021-10-11 00:28:21,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:28:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2021-10-11 00:28:21,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 00:28:21,940 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:21,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:21,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 00:28:21,941 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:21,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:21,942 INFO L82 PathProgramCache]: Analyzing trace with hash -514446840, now seen corresponding path program 1 times [2021-10-11 00:28:21,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:21,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815184587] [2021-10-11 00:28:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:22,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:22,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815184587] [2021-10-11 00:28:22,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:22,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:22,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612035708] [2021-10-11 00:28:22,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:22,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:22,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:22,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:22,055 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2021-10-11 00:28:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:22,266 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2021-10-11 00:28:22,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:28:22,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2021-10-11 00:28:22,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:22,273 INFO L225 Difference]: With dead ends: 752 [2021-10-11 00:28:22,273 INFO L226 Difference]: Without dead ends: 510 [2021-10-11 00:28:22,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:28:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-10-11 00:28:22,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2021-10-11 00:28:22,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-10-11 00:28:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2021-10-11 00:28:22,336 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2021-10-11 00:28:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:22,336 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2021-10-11 00:28:22,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:22,336 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2021-10-11 00:28:22,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-11 00:28:22,337 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:22,337 INFO L422 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] [2021-10-11 00:28:22,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 00:28:22,338 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:22,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:22,338 INFO L82 PathProgramCache]: Analyzing trace with hash 121178437, now seen corresponding path program 1 times [2021-10-11 00:28:22,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:22,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849416493] [2021-10-11 00:28:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:28:22,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849416493] [2021-10-11 00:28:22,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:22,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:22,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348456534] [2021-10-11 00:28:22,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:22,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:22,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:22,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:22,421 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2021-10-11 00:28:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:22,531 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2021-10-11 00:28:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:22,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2021-10-11 00:28:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:22,536 INFO L225 Difference]: With dead ends: 753 [2021-10-11 00:28:22,536 INFO L226 Difference]: Without dead ends: 427 [2021-10-11 00:28:22,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:28:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-11 00:28:22,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2021-10-11 00:28:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2021-10-11 00:28:22,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2021-10-11 00:28:22,579 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2021-10-11 00:28:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:22,580 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2021-10-11 00:28:22,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2021-10-11 00:28:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-11 00:28:22,582 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:22,582 INFO L422 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] [2021-10-11 00:28:22,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 00:28:22,583 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 48791879, now seen corresponding path program 1 times [2021-10-11 00:28:22,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:22,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992616404] [2021-10-11 00:28:22,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 00:28:22,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992616404] [2021-10-11 00:28:22,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:22,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:22,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411448786] [2021-10-11 00:28:22,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:28:22,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:22,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:28:22,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:22,670 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2021-10-11 00:28:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:22,750 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2021-10-11 00:28:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:28:22,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2021-10-11 00:28:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:22,754 INFO L225 Difference]: With dead ends: 676 [2021-10-11 00:28:22,754 INFO L226 Difference]: Without dead ends: 350 [2021-10-11 00:28:22,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-10-11 00:28:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2021-10-11 00:28:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 00:28:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2021-10-11 00:28:22,787 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2021-10-11 00:28:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:22,788 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2021-10-11 00:28:22,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:28:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2021-10-11 00:28:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 00:28:22,789 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:22,789 INFO L422 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] [2021-10-11 00:28:22,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 00:28:22,789 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:22,790 INFO L82 PathProgramCache]: Analyzing trace with hash -516506869, now seen corresponding path program 1 times [2021-10-11 00:28:22,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:22,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730758974] [2021-10-11 00:28:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:22,895 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:28:22,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730758974] [2021-10-11 00:28:22,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:22,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:22,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57145450] [2021-10-11 00:28:22,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:22,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:22,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:22,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:22,898 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2021-10-11 00:28:22,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:22,999 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2021-10-11 00:28:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:28:23,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-10-11 00:28:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:23,005 INFO L225 Difference]: With dead ends: 878 [2021-10-11 00:28:23,005 INFO L226 Difference]: Without dead ends: 666 [2021-10-11 00:28:23,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:28:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-11 00:28:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2021-10-11 00:28:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-10-11 00:28:23,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2021-10-11 00:28:23,045 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2021-10-11 00:28:23,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:23,046 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2021-10-11 00:28:23,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2021-10-11 00:28:23,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 00:28:23,048 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:23,048 INFO L422 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] [2021-10-11 00:28:23,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 00:28:23,048 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:23,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:23,049 INFO L82 PathProgramCache]: Analyzing trace with hash -909533879, now seen corresponding path program 1 times [2021-10-11 00:28:23,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:23,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908364612] [2021-10-11 00:28:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:28:23,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908364612] [2021-10-11 00:28:23,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:23,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:23,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650699456] [2021-10-11 00:28:23,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:23,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:23,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:23,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:23,104 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2021-10-11 00:28:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:23,288 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2021-10-11 00:28:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:28:23,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2021-10-11 00:28:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:23,292 INFO L225 Difference]: With dead ends: 708 [2021-10-11 00:28:23,293 INFO L226 Difference]: Without dead ends: 706 [2021-10-11 00:28:23,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:28:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-11 00:28:23,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2021-10-11 00:28:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2021-10-11 00:28:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2021-10-11 00:28:23,332 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2021-10-11 00:28:23,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:23,333 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2021-10-11 00:28:23,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2021-10-11 00:28:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-11 00:28:23,334 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:23,334 INFO L422 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] [2021-10-11 00:28:23,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 00:28:23,334 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:23,335 INFO L82 PathProgramCache]: Analyzing trace with hash 473466575, now seen corresponding path program 1 times [2021-10-11 00:28:23,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:23,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257014206] [2021-10-11 00:28:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:23,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257014206] [2021-10-11 00:28:23,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121746567] [2021-10-11 00:28:23,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:28:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:23,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:28:23,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:23,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:28:23,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-11 00:28:23,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705569980] [2021-10-11 00:28:23,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:28:23,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:23,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:28:23,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:28:23,713 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2021-10-11 00:28:24,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:24,103 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2021-10-11 00:28:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 00:28:24,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2021-10-11 00:28:24,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:24,108 INFO L225 Difference]: With dead ends: 855 [2021-10-11 00:28:24,108 INFO L226 Difference]: Without dead ends: 637 [2021-10-11 00:28:24,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:28:24,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-10-11 00:28:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2021-10-11 00:28:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2021-10-11 00:28:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2021-10-11 00:28:24,179 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2021-10-11 00:28:24,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:24,180 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2021-10-11 00:28:24,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:28:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2021-10-11 00:28:24,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-11 00:28:24,181 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:24,182 INFO L422 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] [2021-10-11 00:28:24,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-11 00:28:24,397 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:24,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:24,398 INFO L82 PathProgramCache]: Analyzing trace with hash -2086945688, now seen corresponding path program 2 times [2021-10-11 00:28:24,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:24,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390782023] [2021-10-11 00:28:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 00:28:24,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390782023] [2021-10-11 00:28:24,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:24,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:24,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239060007] [2021-10-11 00:28:24,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:24,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:24,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:24,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:24,530 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2021-10-11 00:28:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:25,193 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2021-10-11 00:28:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 00:28:25,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2021-10-11 00:28:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:25,198 INFO L225 Difference]: With dead ends: 1180 [2021-10-11 00:28:25,198 INFO L226 Difference]: Without dead ends: 846 [2021-10-11 00:28:25,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 00:28:25,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2021-10-11 00:28:25,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2021-10-11 00:28:25,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2021-10-11 00:28:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2021-10-11 00:28:25,293 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2021-10-11 00:28:25,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:25,293 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2021-10-11 00:28:25,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2021-10-11 00:28:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-10-11 00:28:25,300 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:25,301 INFO L422 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] [2021-10-11 00:28:25,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 00:28:25,301 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:25,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:25,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1812186074, now seen corresponding path program 1 times [2021-10-11 00:28:25,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:25,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60764944] [2021-10-11 00:28:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-11 00:28:25,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60764944] [2021-10-11 00:28:25,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982245625] [2021-10-11 00:28:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:28:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:25,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 00:28:25,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:25,648 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 00:28:25,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:28:25,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-10-11 00:28:25,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100849886] [2021-10-11 00:28:25,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:25,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:25,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:25,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:28:25,651 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2021-10-11 00:28:25,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:25,760 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2021-10-11 00:28:25,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:25,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2021-10-11 00:28:25,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:25,761 INFO L225 Difference]: With dead ends: 934 [2021-10-11 00:28:25,761 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:28:25,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-11 00:28:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:28:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:28:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:28:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:28:25,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-10-11 00:28:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:25,764 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:28:25,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:28:25,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:28:25,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-11 00:28:25,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:28:27,266 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 284 DAG size of output: 253 [2021-10-11 00:28:27,805 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 143 [2021-10-11 00:28:27,934 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2021-10-11 00:28:28,581 WARN L197 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 222 [2021-10-11 00:28:29,352 WARN L197 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 234 [2021-10-11 00:28:30,237 WARN L197 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2021-10-11 00:28:30,491 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 140 [2021-10-11 00:28:31,128 WARN L197 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2021-10-11 00:28:31,381 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2021-10-11 00:28:31,552 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2021-10-11 00:28:33,893 WARN L197 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 247 DAG size of output: 29 [2021-10-11 00:28:34,252 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 22 [2021-10-11 00:28:34,900 WARN L197 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 23 [2021-10-11 00:28:35,144 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2021-10-11 00:28:36,396 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 220 DAG size of output: 29 [2021-10-11 00:28:37,835 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 232 DAG size of output: 22 [2021-10-11 00:28:39,632 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2021-10-11 00:28:40,083 WARN L197 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2021-10-11 00:28:41,814 WARN L197 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2021-10-11 00:28:42,537 WARN L197 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 40 [2021-10-11 00:28:42,677 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 1 [2021-10-11 00:28:43,188 WARN L197 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 31 [2021-10-11 00:28:43,361 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 16 [2021-10-11 00:28:43,602 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 24 [2021-10-11 00:28:43,605 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,605 INFO L262 CegarLoopResult]: For program point L930(lines 929 976) no Hoare annotation was computed. [2021-10-11 00:28:43,605 INFO L262 CegarLoopResult]: For program point L798(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,606 INFO L262 CegarLoopResult]: For program point L765(lines 765 773) no Hoare annotation was computed. [2021-10-11 00:28:43,606 INFO L262 CegarLoopResult]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,606 INFO L262 CegarLoopResult]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2021-10-11 00:28:43,606 INFO L262 CegarLoopResult]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2021-10-11 00:28:43,607 INFO L262 CegarLoopResult]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,607 INFO L262 CegarLoopResult]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,607 INFO L262 CegarLoopResult]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,607 INFO L262 CegarLoopResult]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2021-10-11 00:28:43,607 INFO L262 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2021-10-11 00:28:43,608 INFO L258 CegarLoopResult]: At program point L832(lines 827 835) the Hoare annotation is: false [2021-10-11 00:28:43,608 INFO L258 CegarLoopResult]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2021-10-11 00:28:43,608 INFO L258 CegarLoopResult]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2021-10-11 00:28:43,608 INFO L258 CegarLoopResult]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2021-10-11 00:28:43,608 INFO L262 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2021-10-11 00:28:43,608 INFO L262 CegarLoopResult]: For program point L536(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,608 INFO L262 CegarLoopResult]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,608 INFO L262 CegarLoopResult]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L900(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,609 INFO L262 CegarLoopResult]: For program point L735(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2021-10-11 00:28:43,610 INFO L262 CegarLoopResult]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,611 INFO L262 CegarLoopResult]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2021-10-11 00:28:43,611 INFO L262 CegarLoopResult]: For program point L471(lines 471 475) no Hoare annotation was computed. [2021-10-11 00:28:43,611 INFO L262 CegarLoopResult]: For program point L967(lines 967 971) no Hoare annotation was computed. [2021-10-11 00:28:43,611 INFO L258 CegarLoopResult]: At program point L967-2(lines 703 709) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2021-10-11 00:28:43,611 INFO L258 CegarLoopResult]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse2 (<= 1 ~waterLevel~0)))) [2021-10-11 00:28:43,612 INFO L262 CegarLoopResult]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2021-10-11 00:28:43,612 INFO L258 CegarLoopResult]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2021-10-11 00:28:43,612 INFO L258 CegarLoopResult]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2021-10-11 00:28:43,612 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,612 INFO L262 CegarLoopResult]: For program point L572(lines 572 576) no Hoare annotation was computed. [2021-10-11 00:28:43,612 INFO L262 CegarLoopResult]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2021-10-11 00:28:43,612 INFO L262 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L441-2(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L739(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,613 INFO L262 CegarLoopResult]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,614 INFO L262 CegarLoopResult]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,614 INFO L262 CegarLoopResult]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2021-10-11 00:28:43,614 INFO L258 CegarLoopResult]: At program point L541(lines 532 545) the Hoare annotation is: false [2021-10-11 00:28:43,614 INFO L258 CegarLoopResult]: At program point L541-1(lines 532 545) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-10-11 00:28:43,614 INFO L258 CegarLoopResult]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2021-10-11 00:28:43,614 INFO L258 CegarLoopResult]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2021-10-11 00:28:43,615 INFO L258 CegarLoopResult]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2021-10-11 00:28:43,615 INFO L258 CegarLoopResult]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2021-10-11 00:28:43,615 INFO L262 CegarLoopResult]: For program point L939(lines 939 945) no Hoare annotation was computed. [2021-10-11 00:28:43,615 INFO L258 CegarLoopResult]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse4 .cse2))) [2021-10-11 00:28:43,615 INFO L258 CegarLoopResult]: At program point L906(lines 891 909) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2021-10-11 00:28:43,616 INFO L258 CegarLoopResult]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2021-10-11 00:28:43,616 INFO L258 CegarLoopResult]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2021-10-11 00:28:43,616 INFO L258 CegarLoopResult]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2021-10-11 00:28:43,616 INFO L258 CegarLoopResult]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2021-10-11 00:28:43,616 INFO L262 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2021-10-11 00:28:43,616 INFO L258 CegarLoopResult]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2021-10-11 00:28:43,617 INFO L265 CegarLoopResult]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2021-10-11 00:28:43,617 INFO L258 CegarLoopResult]: At program point L977(lines 928 978) the Hoare annotation is: false [2021-10-11 00:28:43,617 INFO L258 CegarLoopResult]: At program point L680(lines 1 984) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:28:43,617 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:28:43,617 INFO L262 CegarLoopResult]: For program point L483(lines 483 487) no Hoare annotation was computed. [2021-10-11 00:28:43,617 INFO L262 CegarLoopResult]: For program point L881(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L258 CegarLoopResult]: At program point L617(lines 613 619) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,618 INFO L262 CegarLoopResult]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,619 INFO L258 CegarLoopResult]: At program point L551(lines 546 554) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2021-10-11 00:28:43,619 INFO L258 CegarLoopResult]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2021-10-11 00:28:43,619 INFO L262 CegarLoopResult]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,619 INFO L258 CegarLoopResult]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2021-10-11 00:28:43,619 INFO L262 CegarLoopResult]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,619 INFO L262 CegarLoopResult]: For program point L419(lines 419 432) no Hoare annotation was computed. [2021-10-11 00:28:43,619 INFO L262 CegarLoopResult]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,620 INFO L258 CegarLoopResult]: At program point L419-1(lines 1 984) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2021-10-11 00:28:43,620 INFO L262 CegarLoopResult]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,620 INFO L262 CegarLoopResult]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2021-10-11 00:28:43,620 INFO L258 CegarLoopResult]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2021-10-11 00:28:43,620 INFO L262 CegarLoopResult]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2021-10-11 00:28:43,621 INFO L262 CegarLoopResult]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2021-10-11 00:28:43,621 INFO L258 CegarLoopResult]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2021-10-11 00:28:43,621 INFO L262 CegarLoopResult]: For program point L949(lines 949 955) no Hoare annotation was computed. [2021-10-11 00:28:43,621 INFO L258 CegarLoopResult]: At program point L949-1(lines 949 955) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2021-10-11 00:28:43,621 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:28:43,621 INFO L265 CegarLoopResult]: At program point L653(lines 634 656) the Hoare annotation is: true [2021-10-11 00:28:43,622 INFO L262 CegarLoopResult]: For program point L423(lines 423 429) no Hoare annotation was computed. [2021-10-11 00:28:43,622 INFO L262 CegarLoopResult]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2021-10-11 00:28:43,622 INFO L262 CegarLoopResult]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2021-10-11 00:28:43,622 INFO L258 CegarLoopResult]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2021-10-11 00:28:43,622 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:28:43,622 INFO L258 CegarLoopResult]: At program point L887(lines 872 890) the Hoare annotation is: false [2021-10-11 00:28:43,623 INFO L258 CegarLoopResult]: At program point L887-1(lines 872 890) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2021-10-11 00:28:43,623 INFO L258 CegarLoopResult]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2021-10-11 00:28:43,623 INFO L258 CegarLoopResult]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2021-10-11 00:28:43,623 INFO L258 CegarLoopResult]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2021-10-11 00:28:43,623 INFO L258 CegarLoopResult]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2021-10-11 00:28:43,623 INFO L262 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2021-10-11 00:28:43,623 INFO L262 CegarLoopResult]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2021-10-11 00:28:43,624 INFO L262 CegarLoopResult]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2021-10-11 00:28:43,624 INFO L258 CegarLoopResult]: At program point L823(lines 816 826) the Hoare annotation is: false [2021-10-11 00:28:43,624 INFO L258 CegarLoopResult]: At program point L823-1(lines 816 826) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2021-10-11 00:28:43,624 INFO L258 CegarLoopResult]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2021-10-11 00:28:43,624 INFO L258 CegarLoopResult]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2021-10-11 00:28:43,625 INFO L258 CegarLoopResult]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2021-10-11 00:28:43,625 INFO L258 CegarLoopResult]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2021-10-11 00:28:43,625 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:28:43,625 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2021-10-11 00:28:43,625 INFO L258 CegarLoopResult]: At program point L528(lines 523 531) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-11 00:28:43,626 INFO L258 CegarLoopResult]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2021-10-11 00:28:43,626 INFO L258 CegarLoopResult]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2021-10-11 00:28:43,626 INFO L258 CegarLoopResult]: At program point L496(lines 491 499) the Hoare annotation is: false [2021-10-11 00:28:43,626 INFO L258 CegarLoopResult]: At program point L496-1(lines 491 499) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2021-10-11 00:28:43,626 INFO L258 CegarLoopResult]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2021-10-11 00:28:43,627 INFO L258 CegarLoopResult]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2021-10-11 00:28:43,627 INFO L258 CegarLoopResult]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2021-10-11 00:28:43,627 INFO L258 CegarLoopResult]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2021-10-11 00:28:43,627 INFO L262 CegarLoopResult]: For program point L959(lines 959 972) no Hoare annotation was computed. [2021-10-11 00:28:43,627 INFO L262 CegarLoopResult]: For program point L761(lines 761 778) no Hoare annotation was computed. [2021-10-11 00:28:43,627 INFO L262 CegarLoopResult]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2021-10-11 00:28:43,627 INFO L262 CegarLoopResult]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2021-10-11 00:28:43,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:43 BoogieIcfgContainer [2021-10-11 00:28:43,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:43,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:43,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:43,658 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:43,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:19" (3/4) ... [2021-10-11 00:28:43,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:28:43,693 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-11 00:28:43,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-11 00:28:43,697 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 00:28:43,698 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 00:28:43,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:28:43,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:28:43,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:28:43,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) [2021-10-11 00:28:43,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2021-10-11 00:28:43,735 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2021-10-11 00:28:43,737 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2021-10-11 00:28:43,738 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2021-10-11 00:28:43,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2021-10-11 00:28:43,747 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel [2021-10-11 00:28:43,747 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) [2021-10-11 00:28:43,751 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2021-10-11 00:28:43,751 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2021-10-11 00:28:43,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e00206d-86eb-4f58-bd3d-ab1548ef02c3/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:43,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:43,849 INFO L168 Benchmark]: Toolchain (without parser) took 27162.55 ms. Allocated memory was 104.9 MB in the beginning and 356.5 MB in the end (delta: 251.7 MB). Free memory was 60.9 MB in the beginning and 238.6 MB in the end (delta: -177.7 MB). Peak memory consumption was 74.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,849 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 104.9 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:43,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.60 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 68.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.97 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 64.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,850 INFO L168 Benchmark]: Boogie Preprocessor took 57.34 ms. Allocated memory is still 104.9 MB. Free memory was 64.2 MB in the beginning and 61.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,851 INFO L168 Benchmark]: RCFGBuilder took 1615.59 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 61.4 MB in the beginning and 53.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,851 INFO L168 Benchmark]: TraceAbstraction took 24477.68 ms. Allocated memory was 125.8 MB in the beginning and 356.5 MB in the end (delta: 230.7 MB). Free memory was 52.8 MB in the beginning and 251.3 MB in the end (delta: -198.5 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,852 INFO L168 Benchmark]: Witness Printer took 189.98 ms. Allocated memory is still 356.5 MB. Free memory was 251.3 MB in the beginning and 239.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:43,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 104.9 MB. Free memory is still 78.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 660.60 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 68.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 135.97 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 64.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.34 ms. Allocated memory is still 104.9 MB. Free memory was 64.2 MB in the beginning and 61.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1615.59 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 61.4 MB in the beginning and 53.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24477.68 ms. Allocated memory was 125.8 MB in the beginning and 356.5 MB in the end (delta: 230.7 MB). Free memory was 52.8 MB in the beginning and 251.3 MB in the end (delta: -198.5 MB). Peak memory consumption was 176.4 MB. Max. memory is 16.1 GB. * Witness Printer took 189.98 ms. Allocated memory is still 356.5 MB. Free memory was 251.3 MB in the beginning and 239.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1946 SDtfs, 2841 SDslu, 3298 SDs, 0 SdLazy, 463 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 2583 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 215 NumberOfFragments, 601 HoareAnnotationTreeSize, 55 FomulaSimplifications, 20504852 FormulaSimplificationTreeSizeReduction, 5.6s HoareSimplificationTime, 55 FomulaSimplificationsInter, 4158415 FormulaSimplificationTreeSizeReductionInter, 11.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 61794 SizeOfPredicates, 6 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 223/231 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...