./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer --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-a4ecdab [2020-11-29 18:58:50,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:58:50,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:58:50,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:58:50,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:58:50,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:58:50,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:58:50,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:58:50,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:58:50,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:58:50,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:58:50,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:58:50,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:58:50,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:58:50,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:58:50,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:58:50,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:58:50,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:58:50,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:58:50,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:58:50,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:58:50,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:58:50,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:58:50,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:58:50,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:58:50,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:58:50,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:58:50,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:58:50,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:58:50,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:58:50,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:58:50,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:58:50,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:58:50,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:58:50,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:58:50,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:58:50,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:58:50,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:58:50,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:58:50,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:58:50,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:58:50,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:58:50,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:58:50,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:58:50,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:58:50,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:58:50,270 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:58:50,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:58:50,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:58:50,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:58:50,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:58:50,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:58:50,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:58:50,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:58:50,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:58:50,273 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:58:50,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:58:50,274 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:58:50,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:58:50,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:58:50,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:58:50,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:58:50,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:58:50,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:58:50,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:58:50,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:58:50,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:58:50,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:58:50,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:58:50,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:58:50,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:58:50,279 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-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f34e156823368e08bfaeac3b7f4488efc17d7ca6 [2020-11-29 18:58:50,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:58:50,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:58:50,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:58:50,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:58:50,657 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:58:50,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-29 18:58:50,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/data/61607faf6/47fea992d3304d59a12f4884b2d2fe01/FLAG2c9189a22 [2020-11-29 18:58:51,425 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:58:51,426 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-11-29 18:58:51,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/data/61607faf6/47fea992d3304d59a12f4884b2d2fe01/FLAG2c9189a22 [2020-11-29 18:58:51,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/data/61607faf6/47fea992d3304d59a12f4884b2d2fe01 [2020-11-29 18:58:51,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:58:51,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:58:51,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:58:51,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:58:51,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:58:51,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:58:51" (1/1) ... [2020-11-29 18:58:51,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30786def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:51, skipping insertion in model container [2020-11-29 18:58:51,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:58:51" (1/1) ... [2020-11-29 18:58:51,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:58:51,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:58:52,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:58:52,158 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:58:52,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:58:52,398 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:58:52,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52 WrapperNode [2020-11-29 18:58:52,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:58:52,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:58:52,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:58:52,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:58:52,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:58:52,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:58:52,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:58:52,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:58:52,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... [2020-11-29 18:58:52,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:58:52,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:58:52,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:58:52,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:58:52,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:58:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:58:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:58:52,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:58:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:58:53,950 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:58:53,951 INFO L298 CfgBuilder]: Removed 200 assume(true) statements. [2020-11-29 18:58:53,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:53 BoogieIcfgContainer [2020-11-29 18:58:53,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:58:53,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:58:53,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:58:53,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:58:53,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:58:51" (1/3) ... [2020-11-29 18:58:53,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0e7b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:58:53, skipping insertion in model container [2020-11-29 18:58:53,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:58:52" (2/3) ... [2020-11-29 18:58:53,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0e7b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:58:53, skipping insertion in model container [2020-11-29 18:58:53,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:53" (3/3) ... [2020-11-29 18:58:53,966 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-11-29 18:58:53,979 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:58:53,985 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 18:58:54,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 18:58:54,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:58:54,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:58:54,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:58:54,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:58:54,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:58:54,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:58:54,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:58:54,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:58:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-11-29 18:58:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 18:58:54,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:54,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:58:54,064 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:54,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1844641052, now seen corresponding path program 1 times [2020-11-29 18:58:54,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:54,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993304725] [2020-11-29 18:58:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:54,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993304725] [2020-11-29 18:58:54,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:54,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:58:54,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856984406] [2020-11-29 18:58:54,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:58:54,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:54,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:58:54,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:58:54,485 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-11-29 18:58:54,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:54,547 INFO L93 Difference]: Finished difference Result 267 states and 398 transitions. [2020-11-29 18:58:54,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:58:54,549 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 18:58:54,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:54,563 INFO L225 Difference]: With dead ends: 267 [2020-11-29 18:58:54,563 INFO L226 Difference]: Without dead ends: 131 [2020-11-29 18:58:54,568 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 [2020-11-29 18:58:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-29 18:58:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-29 18:58:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-29 18:58:54,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-11-29 18:58:54,633 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-11-29 18:58:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:54,634 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-11-29 18:58:54,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:58:54,635 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-11-29 18:58:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:58:54,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:54,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:58:54,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:58:54,637 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:54,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:54,638 INFO L82 PathProgramCache]: Analyzing trace with hash -867808078, now seen corresponding path program 1 times [2020-11-29 18:58:54,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:54,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793047459] [2020-11-29 18:58:54,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:54,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793047459] [2020-11-29 18:58:54,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:54,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:58:54,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638466775] [2020-11-29 18:58:54,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:58:54,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:54,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:58:54,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:58:54,829 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-11-29 18:58:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:54,855 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-11-29 18:58:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:58:54,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 18:58:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:54,857 INFO L225 Difference]: With dead ends: 131 [2020-11-29 18:58:54,857 INFO L226 Difference]: Without dead ends: 53 [2020-11-29 18:58:54,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:58:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-29 18:58:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-29 18:58:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-29 18:58:54,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-11-29 18:58:54,868 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-11-29 18:58:54,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:54,869 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-11-29 18:58:54,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:58:54,869 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-11-29 18:58:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 18:58:54,870 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:54,870 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] [2020-11-29 18:58:54,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:58:54,871 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:54,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:54,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2020-11-29 18:58:54,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:54,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824363665] [2020-11-29 18:58:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:54,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824363665] [2020-11-29 18:58:54,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:54,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:58:54,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921142682] [2020-11-29 18:58:54,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:58:54,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:54,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:58:54,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:58:54,997 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-11-29 18:58:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:55,047 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-11-29 18:58:55,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:58:55,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 18:58:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:55,050 INFO L225 Difference]: With dead ends: 100 [2020-11-29 18:58:55,052 INFO L226 Difference]: Without dead ends: 53 [2020-11-29 18:58:55,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:58:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-29 18:58:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-11-29 18:58:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-29 18:58:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-11-29 18:58:55,072 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-11-29 18:58:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:55,073 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-11-29 18:58:55,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:58:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-11-29 18:58:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 18:58:55,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:55,075 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] [2020-11-29 18:58:55,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:58:55,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:55,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:55,079 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2020-11-29 18:58:55,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:55,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871837762] [2020-11-29 18:58:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:55,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871837762] [2020-11-29 18:58:55,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:55,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:58:55,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119603103] [2020-11-29 18:58:55,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:58:55,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:55,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:58:55,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:58:55,164 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-11-29 18:58:55,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:55,247 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-11-29 18:58:55,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:58:55,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-29 18:58:55,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:55,249 INFO L225 Difference]: With dead ends: 121 [2020-11-29 18:58:55,249 INFO L226 Difference]: Without dead ends: 74 [2020-11-29 18:58:55,250 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 [2020-11-29 18:58:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-29 18:58:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-11-29 18:58:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-29 18:58:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-11-29 18:58:55,261 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-11-29 18:58:55,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:55,261 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-11-29 18:58:55,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:58:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-11-29 18:58:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 18:58:55,262 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:55,263 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] [2020-11-29 18:58:55,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:58:55,263 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:55,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:55,264 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2020-11-29 18:58:55,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:55,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366191452] [2020-11-29 18:58:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:55,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366191452] [2020-11-29 18:58:55,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:55,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:58:55,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711803132] [2020-11-29 18:58:55,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:55,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:55,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:55,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:55,429 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-11-29 18:58:55,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:55,605 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-11-29 18:58:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:58:55,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-29 18:58:55,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:55,608 INFO L225 Difference]: With dead ends: 253 [2020-11-29 18:58:55,608 INFO L226 Difference]: Without dead ends: 187 [2020-11-29 18:58:55,609 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 [2020-11-29 18:58:55,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-29 18:58:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-11-29 18:58:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 18:58:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-11-29 18:58:55,645 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-11-29 18:58:55,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:55,646 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-11-29 18:58:55,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-11-29 18:58:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:58:55,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:55,652 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] [2020-11-29 18:58:55,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:58:55,653 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:55,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:55,654 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2020-11-29 18:58:55,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:55,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507389769] [2020-11-29 18:58:55,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:55,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507389769] [2020-11-29 18:58:55,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:55,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:58:55,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962343493] [2020-11-29 18:58:55,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:58:55,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:55,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:58:55,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:58:55,773 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-11-29 18:58:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:55,922 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-11-29 18:58:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:58:55,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 18:58:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:55,924 INFO L225 Difference]: With dead ends: 238 [2020-11-29 18:58:55,924 INFO L226 Difference]: Without dead ends: 172 [2020-11-29 18:58:55,925 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 [2020-11-29 18:58:55,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-29 18:58:55,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-11-29 18:58:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-29 18:58:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-11-29 18:58:55,974 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-11-29 18:58:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:55,978 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-11-29 18:58:55,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:58:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-11-29 18:58:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:58:55,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:55,983 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] [2020-11-29 18:58:55,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:58:55,983 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:55,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:55,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2020-11-29 18:58:55,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:55,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001630185] [2020-11-29 18:58:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:56,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001630185] [2020-11-29 18:58:56,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:56,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:58:56,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48609110] [2020-11-29 18:58:56,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:58:56,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:56,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:58:56,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:58:56,080 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-11-29 18:58:56,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:56,160 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-11-29 18:58:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:58:56,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-29 18:58:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:56,164 INFO L225 Difference]: With dead ends: 473 [2020-11-29 18:58:56,164 INFO L226 Difference]: Without dead ends: 352 [2020-11-29 18:58:56,165 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 [2020-11-29 18:58:56,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-11-29 18:58:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-11-29 18:58:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-29 18:58:56,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-11-29 18:58:56,185 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-11-29 18:58:56,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:56,185 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-11-29 18:58:56,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:58:56,186 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-11-29 18:58:56,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 18:58:56,187 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:56,187 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] [2020-11-29 18:58:56,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:58:56,188 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:56,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:56,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2020-11-29 18:58:56,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:56,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776169507] [2020-11-29 18:58:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:56,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:56,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776169507] [2020-11-29 18:58:56,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:56,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:56,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111374595] [2020-11-29 18:58:56,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:56,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:56,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:56,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:56,270 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 5 states. [2020-11-29 18:58:56,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:56,392 INFO L93 Difference]: Finished difference Result 512 states and 712 transitions. [2020-11-29 18:58:56,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:58:56,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-29 18:58:56,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:56,396 INFO L225 Difference]: With dead ends: 512 [2020-11-29 18:58:56,396 INFO L226 Difference]: Without dead ends: 349 [2020-11-29 18:58:56,397 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 [2020-11-29 18:58:56,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-29 18:58:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 178. [2020-11-29 18:58:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-29 18:58:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-11-29 18:58:56,420 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-11-29 18:58:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:56,420 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-11-29 18:58:56,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-11-29 18:58:56,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 18:58:56,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:56,422 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] [2020-11-29 18:58:56,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:58:56,423 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:56,423 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2020-11-29 18:58:56,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:56,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107091825] [2020-11-29 18:58:56,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:56,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107091825] [2020-11-29 18:58:56,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:56,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:56,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362487184] [2020-11-29 18:58:56,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:58:56,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:56,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:58:56,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:58:56,507 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-11-29 18:58:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:56,727 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-11-29 18:58:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:58:56,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-29 18:58:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:56,734 INFO L225 Difference]: With dead ends: 912 [2020-11-29 18:58:56,734 INFO L226 Difference]: Without dead ends: 740 [2020-11-29 18:58:56,735 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 [2020-11-29 18:58:56,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-11-29 18:58:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-11-29 18:58:56,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-29 18:58:56,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-11-29 18:58:56,785 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-11-29 18:58:56,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:56,787 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-11-29 18:58:56,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:58:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-11-29 18:58:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 18:58:56,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:56,793 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] [2020-11-29 18:58:56,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:58:56,795 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:56,796 INFO L82 PathProgramCache]: Analyzing trace with hash -514446840, now seen corresponding path program 1 times [2020-11-29 18:58:56,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:56,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564075501] [2020-11-29 18:58:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:56,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564075501] [2020-11-29 18:58:56,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:56,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:56,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287751452] [2020-11-29 18:58:56,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:56,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:56,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:56,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:56,928 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-11-29 18:58:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:57,158 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-11-29 18:58:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:58:57,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-29 18:58:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:57,167 INFO L225 Difference]: With dead ends: 752 [2020-11-29 18:58:57,167 INFO L226 Difference]: Without dead ends: 510 [2020-11-29 18:58:57,168 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 [2020-11-29 18:58:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-11-29 18:58:57,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-11-29 18:58:57,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-29 18:58:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-11-29 18:58:57,212 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-11-29 18:58:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:57,213 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-11-29 18:58:57,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-11-29 18:58:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-29 18:58:57,214 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:57,214 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] [2020-11-29 18:58:57,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:58:57,215 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:57,216 INFO L82 PathProgramCache]: Analyzing trace with hash -12835069, now seen corresponding path program 1 times [2020-11-29 18:58:57,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:57,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574708373] [2020-11-29 18:58:57,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:57,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:58:57,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574708373] [2020-11-29 18:58:57,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:57,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:57,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328864648] [2020-11-29 18:58:57,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:57,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:57,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:57,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:57,287 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-11-29 18:58:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:57,429 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-11-29 18:58:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:58:57,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-11-29 18:58:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:57,434 INFO L225 Difference]: With dead ends: 753 [2020-11-29 18:58:57,435 INFO L226 Difference]: Without dead ends: 427 [2020-11-29 18:58:57,436 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 [2020-11-29 18:58:57,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-11-29 18:58:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-11-29 18:58:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-11-29 18:58:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-11-29 18:58:57,485 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-11-29 18:58:57,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:57,486 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-11-29 18:58:57,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:57,486 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-11-29 18:58:57,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-11-29 18:58:57,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:57,488 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] [2020-11-29 18:58:57,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:58:57,489 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:57,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash -85221627, now seen corresponding path program 1 times [2020-11-29 18:58:57,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:57,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492142854] [2020-11-29 18:58:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 18:58:57,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492142854] [2020-11-29 18:58:57,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:57,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:58:57,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421015075] [2020-11-29 18:58:57,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:58:57,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:57,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:58:57,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:58:57,566 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-11-29 18:58:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:57,653 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-11-29 18:58:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:58:57,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-11-29 18:58:57,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:57,657 INFO L225 Difference]: With dead ends: 676 [2020-11-29 18:58:57,658 INFO L226 Difference]: Without dead ends: 350 [2020-11-29 18:58:57,659 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 [2020-11-29 18:58:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-29 18:58:57,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-11-29 18:58:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 18:58:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-11-29 18:58:57,694 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-11-29 18:58:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:57,695 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-11-29 18:58:57,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:58:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-11-29 18:58:57,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 18:58:57,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:57,697 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] [2020-11-29 18:58:57,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:58:57,697 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:57,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:57,698 INFO L82 PathProgramCache]: Analyzing trace with hash -650520375, now seen corresponding path program 1 times [2020-11-29 18:58:57,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:57,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069113952] [2020-11-29 18:58:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 18:58:57,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069113952] [2020-11-29 18:58:57,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:57,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:57,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21819298] [2020-11-29 18:58:57,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:57,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:57,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:57,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:57,780 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-11-29 18:58:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:57,917 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-11-29 18:58:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:58:57,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-29 18:58:57,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:57,926 INFO L225 Difference]: With dead ends: 878 [2020-11-29 18:58:57,926 INFO L226 Difference]: Without dead ends: 666 [2020-11-29 18:58:57,927 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 [2020-11-29 18:58:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-11-29 18:58:57,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-11-29 18:58:57,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-29 18:58:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-11-29 18:58:57,973 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-11-29 18:58:57,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:57,975 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-11-29 18:58:57,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-11-29 18:58:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 18:58:57,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:57,977 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] [2020-11-29 18:58:57,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 18:58:57,977 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1043547385, now seen corresponding path program 1 times [2020-11-29 18:58:57,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:57,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643607646] [2020-11-29 18:58:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 18:58:58,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643607646] [2020-11-29 18:58:58,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:58,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:58,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092074908] [2020-11-29 18:58:58,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:58,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:58,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:58,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:58,093 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-11-29 18:58:58,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:58,350 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-11-29 18:58:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:58:58,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-11-29 18:58:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:58,355 INFO L225 Difference]: With dead ends: 708 [2020-11-29 18:58:58,355 INFO L226 Difference]: Without dead ends: 706 [2020-11-29 18:58:58,357 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 [2020-11-29 18:58:58,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-11-29 18:58:58,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-11-29 18:58:58,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-29 18:58:58,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-11-29 18:58:58,404 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-11-29 18:58:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:58,405 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-11-29 18:58:58,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-11-29 18:58:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 18:58:58,406 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:58,406 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] [2020-11-29 18:58:58,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 18:58:58,407 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:58,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:58,408 INFO L82 PathProgramCache]: Analyzing trace with hash 614015185, now seen corresponding path program 1 times [2020-11-29 18:58:58,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:58,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855029544] [2020-11-29 18:58:58,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:58,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855029544] [2020-11-29 18:58:58,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001111921] [2020-11-29 18:58:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:58:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:58,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:58:58,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:58:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:58:58,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:58:58,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-11-29 18:58:58,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881950986] [2020-11-29 18:58:58,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 18:58:58,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:58,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:58:58,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:58:58,817 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-11-29 18:58:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:59,245 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-11-29 18:58:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 18:58:59,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-29 18:58:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:59,250 INFO L225 Difference]: With dead ends: 855 [2020-11-29 18:58:59,251 INFO L226 Difference]: Without dead ends: 637 [2020-11-29 18:58:59,254 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 [2020-11-29 18:58:59,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-11-29 18:58:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-11-29 18:58:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-11-29 18:58:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-11-29 18:58:59,333 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-11-29 18:58:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:59,334 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-11-29 18:58:59,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 18:58:59,334 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-11-29 18:58:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-29 18:58:59,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:59,336 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] [2020-11-29 18:58:59,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 18:58:59,561 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:59,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:59,562 INFO L82 PathProgramCache]: Analyzing trace with hash -18124376, now seen corresponding path program 2 times [2020-11-29 18:58:59,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:58:59,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826303560] [2020-11-29 18:58:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:58:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:59,872 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-29 18:58:59,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826303560] [2020-11-29 18:58:59,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:59,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 18:58:59,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465221963] [2020-11-29 18:58:59,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:59,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:58:59,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:59,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:59,875 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-11-29 18:59:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:59:00,581 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-11-29 18:59:00,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:59:00,582 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-29 18:59:00,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:59:00,588 INFO L225 Difference]: With dead ends: 1180 [2020-11-29 18:59:00,588 INFO L226 Difference]: Without dead ends: 846 [2020-11-29 18:59:00,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:59:00,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-11-29 18:59:00,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-11-29 18:59:00,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-11-29 18:59:00,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-11-29 18:59:00,715 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-11-29 18:59:00,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:59:00,716 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-11-29 18:59:00,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:59:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-11-29 18:59:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-11-29 18:59:00,725 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:59:00,725 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] [2020-11-29 18:59:00,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 18:59:00,725 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:59:00,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:59:00,726 INFO L82 PathProgramCache]: Analyzing trace with hash 256635238, now seen corresponding path program 1 times [2020-11-29 18:59:00,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:59:00,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410173122] [2020-11-29 18:59:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:59:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:59:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-29 18:59:00,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410173122] [2020-11-29 18:59:00,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393707420] [2020-11-29 18:59:00,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:59:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:59:01,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:59:01,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:59:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 18:59:01,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:59:01,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-11-29 18:59:01,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949035458] [2020-11-29 18:59:01,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:59:01,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:59:01,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:59:01,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:59:01,127 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-11-29 18:59:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:59:01,312 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-11-29 18:59:01,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:59:01,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-11-29 18:59:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:59:01,313 INFO L225 Difference]: With dead ends: 934 [2020-11-29 18:59:01,313 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:59:01,315 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 [2020-11-29 18:59:01,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:59:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:59:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:59:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:59:01,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-11-29 18:59:01,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:59:01,316 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:59:01,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:59:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:59:01,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:59:01,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-11-29 18:59:01,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:59:02,831 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 284 DAG size of output: 253 [2020-11-29 18:59:03,177 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 143 [2020-11-29 18:59:03,913 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 222 [2020-11-29 18:59:04,730 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 234 [2020-11-29 18:59:05,785 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-11-29 18:59:06,051 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 140 [2020-11-29 18:59:06,871 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-11-29 18:59:07,119 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2020-11-29 18:59:07,382 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2020-11-29 18:59:10,353 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 247 DAG size of output: 29 [2020-11-29 18:59:10,668 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 22 [2020-11-29 18:59:11,370 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 23 [2020-11-29 18:59:11,667 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-11-29 18:59:13,055 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 220 DAG size of output: 29 [2020-11-29 18:59:14,883 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 232 DAG size of output: 22 [2020-11-29 18:59:16,973 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-11-29 18:59:17,665 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2020-11-29 18:59:19,725 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-11-29 18:59:20,583 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 40 [2020-11-29 18:59:21,193 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 31 [2020-11-29 18:59:21,410 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 16 [2020-11-29 18:59:21,671 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 24 [2020-11-29 18:59:21,675 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,675 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,675 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L930(lines 929 976) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L798(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-11-29 18:59:21,676 INFO L274 CegarLoopResult]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,677 INFO L274 CegarLoopResult]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,677 INFO L274 CegarLoopResult]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,677 INFO L274 CegarLoopResult]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2020-11-29 18:59:21,677 INFO L274 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-11-29 18:59:21,678 INFO L270 CegarLoopResult]: At program point L832(lines 827 835) the Hoare annotation is: false [2020-11-29 18:59:21,678 INFO L270 CegarLoopResult]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2020-11-29 18:59:21,678 INFO L270 CegarLoopResult]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2020-11-29 18:59:21,678 INFO L270 CegarLoopResult]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2020-11-29 18:59:21,679 INFO L274 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-11-29 18:59:21,679 INFO L274 CegarLoopResult]: For program point L536(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,679 INFO L274 CegarLoopResult]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,679 INFO L274 CegarLoopResult]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,679 INFO L274 CegarLoopResult]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,680 INFO L274 CegarLoopResult]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,680 INFO L274 CegarLoopResult]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2020-11-29 18:59:21,680 INFO L274 CegarLoopResult]: For program point L900(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,680 INFO L274 CegarLoopResult]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,680 INFO L274 CegarLoopResult]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L735(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,681 INFO L274 CegarLoopResult]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,682 INFO L274 CegarLoopResult]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2020-11-29 18:59:21,682 INFO L274 CegarLoopResult]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,682 INFO L274 CegarLoopResult]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2020-11-29 18:59:21,682 INFO L274 CegarLoopResult]: For program point L471(lines 471 475) no Hoare annotation was computed. [2020-11-29 18:59:21,682 INFO L274 CegarLoopResult]: For program point L967(lines 967 971) no Hoare annotation was computed. [2020-11-29 18:59:21,683 INFO L270 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))) [2020-11-29 18:59:21,683 INFO L270 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)))) [2020-11-29 18:59:21,683 INFO L274 CegarLoopResult]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2020-11-29 18:59:21,683 INFO L270 CegarLoopResult]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2020-11-29 18:59:21,684 INFO L270 CegarLoopResult]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2020-11-29 18:59:21,684 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,684 INFO L274 CegarLoopResult]: For program point L572(lines 572 576) no Hoare annotation was computed. [2020-11-29 18:59:21,684 INFO L274 CegarLoopResult]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2020-11-29 18:59:21,684 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-11-29 18:59:21,685 INFO L274 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-11-29 18:59:21,685 INFO L274 CegarLoopResult]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-11-29 18:59:21,685 INFO L274 CegarLoopResult]: For program point L739(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,685 INFO L274 CegarLoopResult]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,685 INFO L274 CegarLoopResult]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,686 INFO L274 CegarLoopResult]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,686 INFO L274 CegarLoopResult]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,686 INFO L274 CegarLoopResult]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2020-11-29 18:59:21,686 INFO L270 CegarLoopResult]: At program point L541(lines 532 545) the Hoare annotation is: false [2020-11-29 18:59:21,687 INFO L270 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))) [2020-11-29 18:59:21,687 INFO L270 CegarLoopResult]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2020-11-29 18:59:21,687 INFO L270 CegarLoopResult]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2020-11-29 18:59:21,687 INFO L270 CegarLoopResult]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2020-11-29 18:59:21,687 INFO L270 CegarLoopResult]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2020-11-29 18:59:21,688 INFO L274 CegarLoopResult]: For program point L939(lines 939 945) no Hoare annotation was computed. [2020-11-29 18:59:21,688 INFO L270 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))) [2020-11-29 18:59:21,688 INFO L270 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)) [2020-11-29 18:59:21,688 INFO L270 CegarLoopResult]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2020-11-29 18:59:21,689 INFO L270 CegarLoopResult]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2020-11-29 18:59:21,689 INFO L270 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)))) [2020-11-29 18:59:21,689 INFO L270 CegarLoopResult]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2020-11-29 18:59:21,689 INFO L274 CegarLoopResult]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L270 CegarLoopResult]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2020-11-29 18:59:21,690 INFO L277 CegarLoopResult]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2020-11-29 18:59:21,690 INFO L270 CegarLoopResult]: At program point L977(lines 928 978) the Hoare annotation is: false [2020-11-29 18:59:21,690 INFO L270 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)) [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point L483(lines 483 487) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point L881(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,690 INFO L274 CegarLoopResult]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,691 INFO L274 CegarLoopResult]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,691 INFO L270 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)) [2020-11-29 18:59:21,691 INFO L274 CegarLoopResult]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,691 INFO L274 CegarLoopResult]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,691 INFO L270 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)) [2020-11-29 18:59:21,692 INFO L270 CegarLoopResult]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2020-11-29 18:59:21,692 INFO L274 CegarLoopResult]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,692 INFO L270 CegarLoopResult]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2020-11-29 18:59:21,692 INFO L274 CegarLoopResult]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,692 INFO L274 CegarLoopResult]: For program point L419(lines 419 432) no Hoare annotation was computed. [2020-11-29 18:59:21,692 INFO L274 CegarLoopResult]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,693 INFO L270 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)))) [2020-11-29 18:59:21,693 INFO L274 CegarLoopResult]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,693 INFO L274 CegarLoopResult]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2020-11-29 18:59:21,693 INFO L270 CegarLoopResult]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2020-11-29 18:59:21,694 INFO L274 CegarLoopResult]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2020-11-29 18:59:21,694 INFO L274 CegarLoopResult]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2020-11-29 18:59:21,694 INFO L270 CegarLoopResult]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2020-11-29 18:59:21,694 INFO L274 CegarLoopResult]: For program point L949(lines 949 955) no Hoare annotation was computed. [2020-11-29 18:59:21,694 INFO L270 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))) [2020-11-29 18:59:21,695 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:59:21,695 INFO L277 CegarLoopResult]: At program point L653(lines 634 656) the Hoare annotation is: true [2020-11-29 18:59:21,695 INFO L274 CegarLoopResult]: For program point L423(lines 423 429) no Hoare annotation was computed. [2020-11-29 18:59:21,695 INFO L274 CegarLoopResult]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2020-11-29 18:59:21,695 INFO L274 CegarLoopResult]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2020-11-29 18:59:21,695 INFO L270 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)) [2020-11-29 18:59:21,696 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:59:21,696 INFO L270 CegarLoopResult]: At program point L887(lines 872 890) the Hoare annotation is: false [2020-11-29 18:59:21,696 INFO L270 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)))) [2020-11-29 18:59:21,696 INFO L270 CegarLoopResult]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2020-11-29 18:59:21,696 INFO L270 CegarLoopResult]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2020-11-29 18:59:21,696 INFO L270 CegarLoopResult]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2020-11-29 18:59:21,697 INFO L270 CegarLoopResult]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2020-11-29 18:59:21,697 INFO L274 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-11-29 18:59:21,697 INFO L274 CegarLoopResult]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2020-11-29 18:59:21,697 INFO L274 CegarLoopResult]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2020-11-29 18:59:21,697 INFO L270 CegarLoopResult]: At program point L823(lines 816 826) the Hoare annotation is: false [2020-11-29 18:59:21,698 INFO L270 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)) [2020-11-29 18:59:21,698 INFO L270 CegarLoopResult]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2020-11-29 18:59:21,698 INFO L270 CegarLoopResult]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2020-11-29 18:59:21,698 INFO L270 CegarLoopResult]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2020-11-29 18:59:21,698 INFO L270 CegarLoopResult]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2020-11-29 18:59:21,699 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:59:21,699 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 18:59:21,699 INFO L270 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|)))) [2020-11-29 18:59:21,699 INFO L270 CegarLoopResult]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2020-11-29 18:59:21,700 INFO L270 CegarLoopResult]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2020-11-29 18:59:21,700 INFO L270 CegarLoopResult]: At program point L496(lines 491 499) the Hoare annotation is: false [2020-11-29 18:59:21,700 INFO L270 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)) [2020-11-29 18:59:21,700 INFO L270 CegarLoopResult]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2020-11-29 18:59:21,700 INFO L270 CegarLoopResult]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2020-11-29 18:59:21,701 INFO L270 CegarLoopResult]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2020-11-29 18:59:21,701 INFO L270 CegarLoopResult]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2020-11-29 18:59:21,701 INFO L274 CegarLoopResult]: For program point L959(lines 959 972) no Hoare annotation was computed. [2020-11-29 18:59:21,701 INFO L274 CegarLoopResult]: For program point L761(lines 761 778) no Hoare annotation was computed. [2020-11-29 18:59:21,702 INFO L274 CegarLoopResult]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2020-11-29 18:59:21,702 INFO L274 CegarLoopResult]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2020-11-29 18:59:21,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:59:21 BoogieIcfgContainer [2020-11-29 18:59:21,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:59:21,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:59:21,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:59:21,752 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:59:21,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:58:53" (3/4) ... [2020-11-29 18:59:21,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:59:21,795 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-29 18:59:21,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-29 18:59:21,802 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 18:59:21,803 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 18:59:21,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 18:59:21,807 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:59:21,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:59:21,843 WARN L221 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) [2020-11-29 18:59:21,845 WARN L221 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) [2020-11-29 18:59:21,848 WARN L221 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) [2020-11-29 18:59:21,851 WARN L221 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) [2020-11-29 18:59:21,852 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-11-29 18:59:21,858 WARN L221 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) [2020-11-29 18:59:21,864 WARN L221 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 [2020-11-29 18:59:21,865 WARN L221 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) [2020-11-29 18:59:21,869 WARN L221 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 [2020-11-29 18:59:21,871 WARN L221 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 [2020-11-29 18:59:21,960 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bd66d5f7-7fab-4372-81f2-59035e425ed4/bin/uautomizer/witness.graphml [2020-11-29 18:59:21,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:59:21,961 INFO L168 Benchmark]: Toolchain (without parser) took 30288.29 ms. Allocated memory was 79.7 MB in the beginning and 346.0 MB in the end (delta: 266.3 MB). Free memory was 45.3 MB in the beginning and 273.4 MB in the end (delta: -228.1 MB). Peak memory consumption was 37.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,962 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:59:21,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.29 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 45.1 MB in the beginning and 64.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.21 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 60.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,963 INFO L168 Benchmark]: Boogie Preprocessor took 60.16 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 57.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,964 INFO L168 Benchmark]: RCFGBuilder took 1349.99 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 71.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,964 INFO L168 Benchmark]: TraceAbstraction took 27793.24 ms. Allocated memory was 98.6 MB in the beginning and 346.0 MB in the end (delta: 247.5 MB). Free memory was 70.9 MB in the beginning and 286.0 MB in the end (delta: -215.1 MB). Peak memory consumption was 212.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,965 INFO L168 Benchmark]: Witness Printer took 209.71 ms. Allocated memory is still 346.0 MB. Free memory was 286.0 MB in the beginning and 273.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:59:21,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.29 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 45.1 MB in the beginning and 64.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.21 ms. Allocated memory is still 98.6 MB. Free memory was 64.4 MB in the beginning and 60.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.16 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 57.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1349.99 ms. Allocated memory is still 98.6 MB. Free memory was 57.3 MB in the beginning and 71.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27793.24 ms. Allocated memory was 98.6 MB in the beginning and 346.0 MB in the end (delta: 247.5 MB). Free memory was 70.9 MB in the beginning and 286.0 MB in the end (delta: -215.1 MB). Peak memory consumption was 212.3 MB. Max. memory is 16.1 GB. * Witness Printer took 209.71 ms. Allocated memory is still 346.0 MB. Free memory was 286.0 MB in the beginning and 273.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 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, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 20.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1946 SDtfs, 2841 SDslu, 3298 SDs, 0 SdLazy, 463 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s 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, 5.9s HoareSimplificationTime, 55 FomulaSimplificationsInter, 4158415 FormulaSimplificationTreeSizeReductionInter, 14.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 61794 SizeOfPredicates, 8 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...