./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:55:11,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:55:11,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:55:11,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:55:11,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:55:11,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:55:11,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:55:11,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:55:11,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:55:11,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:55:11,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:55:11,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:55:11,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:55:11,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:55:11,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:55:11,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:55:11,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:55:11,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:55:11,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:55:11,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:55:11,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:55:11,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:55:11,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:55:11,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:55:11,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:55:11,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:55:11,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:55:11,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:55:11,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:55:11,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:55:11,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:55:11,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:55:11,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:55:11,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:55:11,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:55:11,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:55:11,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:55:11,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:55:11,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:55:11,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:55:11,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:55:11,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:55:11,234 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:55:11,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:55:11,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:55:11,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:55:11,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:55:11,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:55:11,237 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:55:11,237 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:55:11,237 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:55:11,237 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:55:11,238 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:55:11,239 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:55:11,239 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:55:11,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:55:11,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:55:11,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:55:11,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:55:11,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:55:11,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:55:11,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:55:11,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:55:11,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:55:11,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:55:11,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:55:11,241 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:55:11,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:55:11,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:55:11,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:55:11,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:55:11,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:55:11,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:55:11,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:55:11,245 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:55:11,245 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2021-10-28 22:55:11,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:55:11,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:55:11,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:55:11,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:55:11,551 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:55:11,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2021-10-28 22:55:11,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/data/638ea9bd3/9c2a1c57e1ac4d46b4be13e35915252b/FLAGe074c9882 [2021-10-28 22:55:12,280 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:55:12,281 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2021-10-28 22:55:12,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/data/638ea9bd3/9c2a1c57e1ac4d46b4be13e35915252b/FLAGe074c9882 [2021-10-28 22:55:12,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/data/638ea9bd3/9c2a1c57e1ac4d46b4be13e35915252b [2021-10-28 22:55:12,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:55:12,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:55:12,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:55:12,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:55:12,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:55:12,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:55:12" (1/1) ... [2021-10-28 22:55:12,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f4e017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:12, skipping insertion in model container [2021-10-28 22:55:12,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:55:12" (1/1) ... [2021-10-28 22:55:12,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:55:12,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:55:12,952 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2021-10-28 22:55:12,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:55:12,982 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:55:13,122 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2021-10-28 22:55:13,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:55:13,157 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:55:13,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13 WrapperNode [2021-10-28 22:55:13,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:55:13,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:55:13,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:55:13,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:55:13,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:55:13,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:55:13,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:55:13,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:55:13,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:55:13,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:55:13,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:55:13,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:55:13,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (1/1) ... [2021-10-28 22:55:13,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:55:13,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:55:13,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:55:13,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:55:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:55:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:55:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:55:13,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:55:14,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:55:14,696 INFO L299 CfgBuilder]: Removed 290 assume(true) statements. [2021-10-28 22:55:14,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:14 BoogieIcfgContainer [2021-10-28 22:55:14,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:55:14,700 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:55:14,700 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:55:14,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:55:14,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:55:14,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:55:12" (1/3) ... [2021-10-28 22:55:14,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17e9b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:55:14, skipping insertion in model container [2021-10-28 22:55:14,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:55:14,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:55:13" (2/3) ... [2021-10-28 22:55:14,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17e9b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:55:14, skipping insertion in model container [2021-10-28 22:55:14,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:55:14,706 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:14" (3/3) ... [2021-10-28 22:55:14,708 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2021-10-28 22:55:14,763 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:55:14,763 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:55:14,764 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:55:14,764 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:55:14,764 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:55:14,764 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:55:14,764 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:55:14,764 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:55:14,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 195 states, 194 states have (on average 1.5309278350515463) internal successors, (297), 194 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:14,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2021-10-28 22:55:14,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:55:14,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:55:14,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:14,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:14,835 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:55:14,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 195 states, 194 states have (on average 1.5309278350515463) internal successors, (297), 194 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:14,846 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2021-10-28 22:55:14,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:55:14,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:55:14,848 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:14,848 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:14,853 INFO L791 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 116#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 172#L679true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 30#L687true main_#t~ret72 := valid_product_#res;main_~tmp~10 := main_#t~ret72;havoc main_#t~ret72; 16#L894true assume 0 != main_~tmp~10; 47#L870true ~switchedOnBeforeTS~0 := 0; 6#L768true havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 127#L789-1true [2021-10-28 22:55:14,853 INFO L793 eck$LassoCheckResult]: Loop: 127#L789-1true assume !false; 179#L706true assume test_~splverifierCounter~0 < 4; 148#L707true test_~tmp~8 := test_#t~nondet65;havoc test_#t~nondet65; 10#L715true assume !(0 != test_~tmp~8); 156#L715-1true test_~tmp___0~2 := test_#t~nondet66;havoc test_#t~nondet66; 7#L725true assume !(0 != test_~tmp___0~2); 146#L725-1true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 193#L735true assume 0 != test_~tmp___2~0; 147#L741-2true havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 98#L575true __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 99#L778true assume !(0 != ~pumpRunning~0); 162#L438true assume !(0 != ~systemActive~0); 23#L445true havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 135#L992true __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 37#L789true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 127#L789-1true [2021-10-28 22:55:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 22:55:14,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:14,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317510870] [2021-10-28 22:55:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:14,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:15,104 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:15,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:15,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:15,325 INFO L85 PathProgramCache]: Analyzing trace with hash 99399404, now seen corresponding path program 1 times [2021-10-28 22:55:15,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:15,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287874102] [2021-10-28 22:55:15,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:15,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:15,368 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:15,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2033424614, now seen corresponding path program 1 times [2021-10-28 22:55:15,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:15,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591971699] [2021-10-28 22:55:15,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:15,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:55:15,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:55:15,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:55:15,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591971699] [2021-10-28 22:55:15,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591971699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:55:15,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:55:15,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:55:15,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830500380] [2021-10-28 22:55:15,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:55:15,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:55:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:55:15,747 INFO L87 Difference]: Start difference. First operand has 195 states, 194 states have (on average 1.5309278350515463) internal successors, (297), 194 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:55:15,917 INFO L93 Difference]: Finished difference Result 195 states and 286 transitions. [2021-10-28 22:55:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:55:15,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 286 transitions. [2021-10-28 22:55:15,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-10-28 22:55:15,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 188 states and 279 transitions. [2021-10-28 22:55:15,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2021-10-28 22:55:15,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2021-10-28 22:55:15,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 279 transitions. [2021-10-28 22:55:15,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:55:15,937 INFO L681 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2021-10-28 22:55:15,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 279 transitions. [2021-10-28 22:55:15,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-10-28 22:55:15,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 1.4840425531914894) internal successors, (279), 187 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 279 transitions. [2021-10-28 22:55:15,975 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2021-10-28 22:55:15,975 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 279 transitions. [2021-10-28 22:55:15,976 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:55:15,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 279 transitions. [2021-10-28 22:55:15,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-10-28 22:55:15,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:55:15,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:55:15,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:15,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:15,980 INFO L791 eck$LassoCheckResult]: Stem: 592#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 494#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 495#L679 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 519#L687 main_#t~ret72 := valid_product_#res;main_~tmp~10 := main_#t~ret72;havoc main_#t~ret72; 473#L894 assume 0 != main_~tmp~10; 474#L870 ~switchedOnBeforeTS~0 := 0; 429#L768 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 430#L789-1 [2021-10-28 22:55:15,981 INFO L793 eck$LassoCheckResult]: Loop: 430#L789-1 assume !false; 522#L706 assume test_~splverifierCounter~0 < 4; 555#L707 test_~tmp~8 := test_#t~nondet65;havoc test_#t~nondet65; 444#L715 assume !(0 != test_~tmp~8); 446#L715-1 test_~tmp___0~2 := test_#t~nondet66;havoc test_#t~nondet66; 433#L725 assume !(0 != test_~tmp___0~2); 435#L725-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 551#L735 assume 0 != test_~tmp___2~0; 552#L741-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 449#L575 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 450#L778 assume !(0 != ~pumpRunning~0); 451#L438 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 576#L522 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 516#L496-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 518#L470-3 assume !(0 == ~pumpRunning~0); 456#L445 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 493#L992 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 536#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 430#L789-1 [2021-10-28 22:55:15,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:15,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 22:55:15,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:15,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466802385] [2021-10-28 22:55:15,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:15,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,028 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:16,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,086 INFO L85 PathProgramCache]: Analyzing trace with hash -416203938, now seen corresponding path program 1 times [2021-10-28 22:55:16,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098362393] [2021-10-28 22:55:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:55:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:55:16,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:55:16,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098362393] [2021-10-28 22:55:16,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098362393] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:55:16,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:55:16,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:55:16,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624984305] [2021-10-28 22:55:16,106 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:55:16,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:55:16,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 22:55:16,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 22:55:16,108 INFO L87 Difference]: Start difference. First operand 188 states and 279 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:16,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:55:16,238 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions. [2021-10-28 22:55:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 22:55:16,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 201 states and 278 transitions. [2021-10-28 22:55:16,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2021-10-28 22:55:16,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 201 states to 201 states and 278 transitions. [2021-10-28 22:55:16,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 201 [2021-10-28 22:55:16,246 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2021-10-28 22:55:16,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 278 transitions. [2021-10-28 22:55:16,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:55:16,248 INFO L681 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2021-10-28 22:55:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 278 transitions. [2021-10-28 22:55:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-10-28 22:55:16,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.3830845771144278) internal successors, (278), 200 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2021-10-28 22:55:16,261 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2021-10-28 22:55:16,261 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 278 transitions. [2021-10-28 22:55:16,261 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:55:16,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 278 transitions. [2021-10-28 22:55:16,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2021-10-28 22:55:16,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:55:16,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:55:16,265 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:16,265 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:16,265 INFO L791 eck$LassoCheckResult]: Stem: 958#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 869#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 870#L679 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 889#L687 main_#t~ret72 := valid_product_#res;main_~tmp~10 := main_#t~ret72;havoc main_#t~ret72; 859#L894 assume 0 != main_~tmp~10; 860#L870 ~switchedOnBeforeTS~0 := 0; 818#L768 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 819#L789-1 [2021-10-28 22:55:16,265 INFO L793 eck$LassoCheckResult]: Loop: 819#L789-1 assume !false; 890#L706 assume test_~splverifierCounter~0 < 4; 920#L707 test_~tmp~8 := test_#t~nondet65;havoc test_#t~nondet65; 835#L715 assume !(0 != test_~tmp~8); 837#L715-1 test_~tmp___0~2 := test_#t~nondet66;havoc test_#t~nondet66; 825#L725 assume !(0 != test_~tmp___0~2); 827#L725-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 918#L735 assume 0 != test_~tmp___2~0; 919#L741-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 840#L575 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 841#L778 assume !(0 != ~pumpRunning~0); 842#L438 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 937#L522 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 887#L496-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 888#L470-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret62, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 900#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 901#L1005-3 isHighWaterLevel_#t~ret62 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret62;havoc isHighWaterLevel_#t~ret62; 935#L624-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 904#L624-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 905#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret42 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret42;havoc processEnvironment__wrappee__highWaterSensor_#t~ret42; 940#L474-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 847#L445 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 868#L992 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 907#L789 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9); 819#L789-1 [2021-10-28 22:55:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 22:55:16,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860619726] [2021-10-28 22:55:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,306 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:16,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1258364778, now seen corresponding path program 1 times [2021-10-28 22:55:16,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836581101] [2021-10-28 22:55:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:55:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:55:16,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:55:16,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836581101] [2021-10-28 22:55:16,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836581101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:55:16,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:55:16,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:55:16,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505270370] [2021-10-28 22:55:16,390 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 22:55:16,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:55:16,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:55:16,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:55:16,391 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. cyclomatic complexity: 79 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:55:16,590 INFO L93 Difference]: Finished difference Result 577 states and 781 transitions. [2021-10-28 22:55:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:55:16,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 577 states and 781 transitions. [2021-10-28 22:55:16,597 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 367 [2021-10-28 22:55:16,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 577 states to 577 states and 781 transitions. [2021-10-28 22:55:16,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 577 [2021-10-28 22:55:16,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 577 [2021-10-28 22:55:16,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 577 states and 781 transitions. [2021-10-28 22:55:16,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:55:16,609 INFO L681 BuchiCegarLoop]: Abstraction has 577 states and 781 transitions. [2021-10-28 22:55:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states and 781 transitions. [2021-10-28 22:55:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 395. [2021-10-28 22:55:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 395 states have (on average 1.3468354430379748) internal successors, (532), 394 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:55:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 532 transitions. [2021-10-28 22:55:16,633 INFO L704 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2021-10-28 22:55:16,633 INFO L587 BuchiCegarLoop]: Abstraction has 395 states and 532 transitions. [2021-10-28 22:55:16,633 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 22:55:16,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 395 states and 532 transitions. [2021-10-28 22:55:16,637 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 276 [2021-10-28 22:55:16,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:55:16,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:55:16,638 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:55:16,638 INFO L843 BuchiCegarLoop]: Counterexample loop 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] [2021-10-28 22:55:16,638 INFO L791 eck$LassoCheckResult]: Stem: 1762#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(13);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(77, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(101, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(116, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(104, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string78.base, #t~string78.offset, 1);call write~init~int(82, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(73, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(84, #t~string78.base, 3 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 4 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(75, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 2 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 1 + #t~string82.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1663#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 1664#L679 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1682#L687 main_#t~ret72 := valid_product_#res;main_~tmp~10 := main_#t~ret72;havoc main_#t~ret72; 1653#L894 assume 0 != main_~tmp~10; 1654#L870 ~switchedOnBeforeTS~0 := 0; 1615#L768 havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1616#L789-1 [2021-10-28 22:55:16,639 INFO L793 eck$LassoCheckResult]: Loop: 1616#L789-1 assume !false; 1683#L706 assume test_~splverifierCounter~0 < 4; 1714#L707 test_~tmp~8 := test_#t~nondet65;havoc test_#t~nondet65; 1633#L715 assume !(0 != test_~tmp~8); 1635#L715-1 test_~tmp___0~2 := test_#t~nondet66;havoc test_#t~nondet66; 1730#L725 assume !(0 != test_~tmp___0~2); 1986#L725-1 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 1985#L735 assume 0 != test_~tmp___2~0; 1983#L741-2 havoc __utac_acc__Specification5_spec__2_#t~ret69;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1982#L575 __utac_acc__Specification5_spec__2_#t~ret69 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret69;havoc __utac_acc__Specification5_spec__2_#t~ret69; 1980#L778 assume !(0 != ~pumpRunning~0); 1953#L438 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1749#L522 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret43, processEnvironment__wrappee__lowWaterSensor_~tmp~4;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~4; 1680#L496-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret42, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1681#L470-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret62, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1693#L1000-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1694#L1005-3 isHighWaterLevel_#t~ret62 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret62;havoc isHighWaterLevel_#t~ret62; 1733#L624-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~0 := 0; 1697#L624-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1698#L630-3 processEnvironment__wrappee__highWaterSensor_#t~ret42 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret42;havoc processEnvironment__wrappee__highWaterSensor_#t~ret42; 1739#L474-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1641#L445 havoc __utac_acc__Specification5_spec__3_#t~ret70, __utac_acc__Specification5_spec__3_#t~ret71, __utac_acc__Specification5_spec__3_~tmp~9, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~9;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1662#L992 __utac_acc__Specification5_spec__3_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~9 := __utac_acc__Specification5_spec__3_#t~ret70;havoc __utac_acc__Specification5_spec__3_#t~ret70; 1700#L789 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 1658#L575-1 __utac_acc__Specification5_spec__3_#t~ret71 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret71;havoc __utac_acc__Specification5_spec__3_#t~ret71; 1659#L793 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1616#L789-1 [2021-10-28 22:55:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-28 22:55:16,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528361853] [2021-10-28 22:55:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,670 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1892234555, now seen corresponding path program 1 times [2021-10-28 22:55:16,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116949730] [2021-10-28 22:55:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,774 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:55:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:55:16,801 INFO L85 PathProgramCache]: Analyzing trace with hash 436521099, now seen corresponding path program 1 times [2021-10-28 22:55:16,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:55:16,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689252990] [2021-10-28 22:55:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:55:16,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:55:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,856 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:55:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:55:16,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:56:12,961 WARN L207 SmtUtils]: Spent 55.68 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 22:57:13,435 WARN L207 SmtUtils]: Spent 28.66 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 22:57:13,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:57:13 BoogieIcfgContainer [2021-10-28 22:57:13,603 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:57:13,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:57:13,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:57:13,605 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:57:13,605 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:55:14" (3/4) ... [2021-10-28 22:57:13,608 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 22:57:13,658 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:57:13,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:57:13,660 INFO L168 Benchmark]: Toolchain (without parser) took 121096.42 ms. Allocated memory was 90.2 MB in the beginning and 165.7 MB in the end (delta: 75.5 MB). Free memory was 54.8 MB in the beginning and 102.5 MB in the end (delta: -47.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,660 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 90.2 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:57:13,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.33 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 54.7 MB in the beginning and 97.2 MB in the end (delta: -42.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.18 ms. Allocated memory is still 132.1 MB. Free memory was 97.2 MB in the beginning and 92.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,662 INFO L168 Benchmark]: Boogie Preprocessor took 66.86 ms. Allocated memory is still 132.1 MB. Free memory was 92.5 MB in the beginning and 89.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,662 INFO L168 Benchmark]: RCFGBuilder took 1328.57 ms. Allocated memory is still 132.1 MB. Free memory was 88.8 MB in the beginning and 82.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,663 INFO L168 Benchmark]: BuchiAutomizer took 118904.05 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 81.9 MB in the beginning and 105.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 86.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,663 INFO L168 Benchmark]: Witness Printer took 54.55 ms. Allocated memory is still 165.7 MB. Free memory was 105.7 MB in the beginning and 102.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:57:13,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 90.2 MB. Free memory is still 42.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.33 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 54.7 MB in the beginning and 97.2 MB in the end (delta: -42.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.18 ms. Allocated memory is still 132.1 MB. Free memory was 97.2 MB in the beginning and 92.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.86 ms. Allocated memory is still 132.1 MB. Free memory was 92.5 MB in the beginning and 89.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1328.57 ms. Allocated memory is still 132.1 MB. Free memory was 88.8 MB in the beginning and 82.6 MB in the end (delta: 6.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118904.05 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 81.9 MB in the beginning and 105.7 MB in the end (delta: -23.8 MB). Peak memory consumption was 86.2 MB. Max. memory is 16.1 GB. * Witness Printer took 54.55 ms. Allocated memory is still 165.7 MB. Free memory was 105.7 MB in the beginning and 102.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 395 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 118.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 118.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 182 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 395 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 845 SDtfs, 1995 SDslu, 843 SDs, 0 SdLazy, 169 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 705]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8160} State at position 1 is {retValue_acc=1, NULL=0, NULL=8176, NULL=8160, methaneLevelCritical=0, NULL=8171, NULL=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=8174, NULL=0, NULL=8173, NULL=8177, cleanupTimeShifts=4, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@510b8c15=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@237d9f9d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@219fc118=0, NULL=8182, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20a9ab19=0, NULL=8164, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=8165, NULL=0, NULL=0, tmp___0=0, NULL=8161, NULL=8185, tmp=1, NULL=8188, NULL=8167, head=0, NULL=0, NULL=0, tmp=0, NULL=8184, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ec6fc34=0, NULL=0, NULL=8181, retValue_acc=0, NULL=8175, NULL=0, tmp=1, tmp___0=0, NULL=8168, tmp=0, NULL=0, NULL=8179, tmp=0, NULL=8170, switchedOnBeforeTS=0, NULL=8187, \result=0, NULL=8169, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50d4953c=0, NULL=8162, \result=0, NULL=8183, NULL=0, NULL=0, NULL=0, NULL=8178, NULL=8166, \result=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b833d58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65676655=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@422b4e49=55, NULL=0, NULL=8172, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1282e7b5=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2740d404=0, NULL=8180, retValue_acc=1, tmp___2=55, splverifierCounter=0, NULL=0, NULL=0, NULL=8186, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a917949=0, NULL=8163, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L762] int switchedOnBeforeTS ; [L811] int cleanupTimeShifts = 4; [L917] int waterLevel = 1; [L918] int methaneLevelCritical = 0; [L885] int retValue_acc ; [L886] int tmp ; [L683] int retValue_acc ; [L686] retValue_acc = 1 [L687] return (retValue_acc); [L892] tmp = valid_product() [L894] COND TRUE \read(tmp) [L767] switchedOnBeforeTS = 0 [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 Loop: [L705] COND TRUE 1 [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L776] switchedOnBeforeTS = isPumpRunning() [L438] COND FALSE !(\read(pumpRunning)) [L445] COND TRUE \read(systemActive) [L519] int tmp ; [L522] COND FALSE !(\read(pumpRunning)) [L493] int tmp ; [L496] COND FALSE !(\read(pumpRunning)) [L467] int tmp ; [L470] COND TRUE ! pumpRunning [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L997] int retValue_acc ; [L1000] COND TRUE waterLevel < 2 [L1001] retValue_acc = 1 [L1002] return (retValue_acc); [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L472] tmp = isHighWaterLevel() [L474] COND FALSE !(\read(tmp)) [L782] int tmp ; [L783] int tmp___0 ; [L988] int retValue_acc ; [L991] retValue_acc = waterLevel [L992] return (retValue_acc); [L787] tmp = getWaterLevel() [L789] COND TRUE tmp != 2 [L571] int retValue_acc ; [L574] retValue_acc = pumpRunning [L575] return (retValue_acc); [L791] tmp___0 = isPumpRunning() [L793] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:57:13,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6db8f37d-53ca-46c0-92d3-309c980d4ecf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...