./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/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 2d1ca9044da6bfd8ea8e8fb421260ee2f744733ad29714ab0a4cdf49955938a8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:04:04,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:04:04,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:04:04,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:04:04,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:04:04,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:04:04,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:04:04,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:04:04,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:04:04,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:04:04,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:04:04,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:04:04,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:04:04,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:04:04,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:04:04,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:04:04,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:04:04,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:04:04,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:04:04,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:04:04,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:04:04,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:04:04,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:04:04,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:04:04,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:04:04,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:04:04,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:04:04,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:04:04,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:04:04,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:04:04,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:04:04,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:04:04,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:04:04,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:04:04,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:04:04,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:04:04,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:04:04,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:04:04,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:04:04,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:04:04,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:04:04,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:04:04,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:04:04,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:04:04,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:04:04,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:04:04,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:04:04,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:04:04,730 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:04:04,730 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:04:04,730 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:04:04,731 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:04:04,732 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:04:04,732 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:04:04,733 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:04:04,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:04:04,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:04:04,734 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:04:04,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:04:04,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:04:04,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:04:04,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:04:04,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:04:04,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:04:04,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:04:04,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:04:04,736 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:04:04,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:04:04,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:04:04,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:04:04,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:04:04,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:04:04,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:04:04,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:04:04,742 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:04:04,743 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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d1ca9044da6bfd8ea8e8fb421260ee2f744733ad29714ab0a4cdf49955938a8 [2021-10-28 23:04:05,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:04:05,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:04:05,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:04:05,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:04:05,172 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:04:05,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2021-10-28 23:04:05,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/data/22f85a3bb/d817c14ffee04d6aa978cee3c056037a/FLAG1d801ba6c [2021-10-28 23:04:06,050 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:04:06,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c [2021-10-28 23:04:06,079 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/data/22f85a3bb/d817c14ffee04d6aa978cee3c056037a/FLAG1d801ba6c [2021-10-28 23:04:06,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/data/22f85a3bb/d817c14ffee04d6aa978cee3c056037a [2021-10-28 23:04:06,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:04:06,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:04:06,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:06,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:04:06,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:04:06,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:06" (1/1) ... [2021-10-28 23:04:06,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a84b7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:06, skipping insertion in model container [2021-10-28 23:04:06,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:04:06" (1/1) ... [2021-10-28 23:04:06,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:04:06,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:04:06,775 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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c[13833,13846] [2021-10-28 23:04:06,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:06,830 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:04:06,924 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_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/sv-benchmarks/c/product-lines/minepump_spec5_product16.cil.c[13833,13846] [2021-10-28 23:04:06,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:04:07,006 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:04:07,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07 WrapperNode [2021-10-28 23:04:07,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:04:07,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:04:07,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:04:07,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:04:07,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:04:07,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:04:07,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:04:07,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:04:07,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:04:07,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:04:07,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:04:07,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:04:07,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (1/1) ... [2021-10-28 23:04:07,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:04:07,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:04:07,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:04:07,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:04:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:04:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:04:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:04:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:04:08,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:04:08,441 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-28 23:04:08,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:08 BoogieIcfgContainer [2021-10-28 23:04:08,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:04:08,446 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:04:08,446 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:04:08,450 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:04:08,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:04:08,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:04:06" (1/3) ... [2021-10-28 23:04:08,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@366eb35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:04:08, skipping insertion in model container [2021-10-28 23:04:08,455 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:04:08,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:04:07" (2/3) ... [2021-10-28 23:04:08,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@366eb35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:04:08, skipping insertion in model container [2021-10-28 23:04:08,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:04:08,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:08" (3/3) ... [2021-10-28 23:04:08,458 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product16.cil.c [2021-10-28 23:04:08,532 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:04:08,532 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:04:08,532 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:04:08,533 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:04:08,533 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:04:08,533 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:04:08,533 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:04:08,533 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:04:08,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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 23:04:08,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:04:08,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:04:08,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:04:08,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:08,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:08,613 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:04:08,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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 23:04:08,633 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:04:08,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:04:08,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:04:08,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:08,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:08,641 INFO L791 eck$LassoCheckResult]: Stem: 65#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 47#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 76#L595true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 63#L603true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 57#L559true assume 0 != main_~tmp~4; 48#L531true ~switchedOnBeforeTS~0 := 0; 45#L425true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 13#L446-1true [2021-10-28 23:04:08,643 INFO L793 eck$LassoCheckResult]: Loop: 13#L446-1true assume !false; 12#L811true assume test_~splverifierCounter~0 < 4; 16#L812true test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 31#L820true assume !(0 != test_~tmp~7); 70#L820-1true test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 37#L830true assume !(0 != test_~tmp___0~1); 71#L830-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 40#L840true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L848-1true havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 42#L736true __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 33#L435true assume !(0 != ~pumpRunning~0); 29#L634true assume !(0 != ~systemActive~0); 55#L641true havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 10#L944true __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 44#L446true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 13#L446-1true [2021-10-28 23:04:08,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:08,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:04:08,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:08,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844841071] [2021-10-28 23:04:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:08,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,029 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:09,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash 674918198, now seen corresponding path program 1 times [2021-10-28 23:04:09,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:09,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212415899] [2021-10-28 23:04:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:09,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:09,409 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 23:04:09,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:04:09,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212415899] [2021-10-28 23:04:09,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212415899] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:09,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:09,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:04:09,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725950849] [2021-10-28 23:04:09,419 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:04:09,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:04:09,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:04:09,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:04:09,455 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 23:04:09,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:09,588 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2021-10-28 23:04:09,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:04:09,592 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2021-10-28 23:04:09,597 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-10-28 23:04:09,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2021-10-28 23:04:09,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2021-10-28 23:04:09,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2021-10-28 23:04:09,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2021-10-28 23:04:09,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:04:09,609 INFO L681 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2021-10-28 23:04:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2021-10-28 23:04:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2021-10-28 23:04:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.4122137404580153) internal successors, (185), 130 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:04:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2021-10-28 23:04:09,653 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-10-28 23:04:09,653 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-10-28 23:04:09,653 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:04:09,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2021-10-28 23:04:09,656 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-10-28 23:04:09,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:04:09,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:04:09,658 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:09,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:09,658 INFO L791 eck$LassoCheckResult]: Stem: 316#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 297#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 298#L595 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 314#L603 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 308#L559 assume 0 != main_~tmp~4; 299#L531 ~switchedOnBeforeTS~0 := 0; 295#L425 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 296#L446-1 [2021-10-28 23:04:09,659 INFO L793 eck$LassoCheckResult]: Loop: 296#L446-1 assume !false; 347#L811 assume test_~splverifierCounter~0 < 4; 346#L812 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 345#L820 assume !(0 != test_~tmp~7); 318#L820-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 282#L830 assume !(0 != test_~tmp___0~1); 284#L830-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 289#L840 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 285#L848-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 286#L736 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 292#L435 assume !(0 != ~pumpRunning~0); 274#L634 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 275#L666 assume !(0 != ~pumpRunning~0); 351#L641 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 350#L944 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 349#L446 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 296#L446-1 [2021-10-28 23:04:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:04:09,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:09,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352230930] [2021-10-28 23:04:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:09,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,726 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,807 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash -572900797, now seen corresponding path program 1 times [2021-10-28 23:04:09,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:09,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030813344] [2021-10-28 23:04:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:09,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:09,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:09,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:09,827 INFO L85 PathProgramCache]: Analyzing trace with hash -747661431, now seen corresponding path program 1 times [2021-10-28 23:04:09,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:09,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891146937] [2021-10-28 23:04:09,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:09,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:09,913 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 23:04:09,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:04:09,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891146937] [2021-10-28 23:04:09,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891146937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:09,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:09,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:04:09,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786532076] [2021-10-28 23:04:10,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:04:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:04:10,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:04:10,146 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23:04:10,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:10,289 INFO L93 Difference]: Finished difference Result 356 states and 495 transitions. [2021-10-28 23:04:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:04:10,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 356 states and 495 transitions. [2021-10-28 23:04:10,296 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2021-10-28 23:04:10,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 356 states to 356 states and 495 transitions. [2021-10-28 23:04:10,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2021-10-28 23:04:10,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2021-10-28 23:04:10,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 495 transitions. [2021-10-28 23:04:10,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:04:10,306 INFO L681 BuchiCegarLoop]: Abstraction has 356 states and 495 transitions. [2021-10-28 23:04:10,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 495 transitions. [2021-10-28 23:04:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 255. [2021-10-28 23:04:10,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 255 states have (on average 1.3686274509803922) internal successors, (349), 254 states have internal predecessors, (349), 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 23:04:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 349 transitions. [2021-10-28 23:04:10,327 INFO L704 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2021-10-28 23:04:10,327 INFO L587 BuchiCegarLoop]: Abstraction has 255 states and 349 transitions. [2021-10-28 23:04:10,328 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:04:10,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 255 states and 349 transitions. [2021-10-28 23:04:10,371 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 178 [2021-10-28 23:04:10,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:04:10,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:04:10,373 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:10,373 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 23:04:10,374 INFO L791 eck$LassoCheckResult]: Stem: 813#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 801#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 802#L595 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 812#L603 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 809#L559 assume 0 != main_~tmp~4; 803#L531 ~switchedOnBeforeTS~0 := 0; 797#L425 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 798#L446-1 [2021-10-28 23:04:10,374 INFO L793 eck$LassoCheckResult]: Loop: 798#L446-1 assume !false; 964#L811 assume test_~splverifierCounter~0 < 4; 963#L812 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 961#L820 assume !(0 != test_~tmp~7); 958#L820-1 test_~tmp___0~1 := test_#t~nondet67;havoc test_#t~nondet67; 953#L830 assume !(0 != test_~tmp___0~1); 950#L830-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 948#L840 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 947#L848-1 havoc __utac_acc__Specification5_spec__2_#t~ret42;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 984#L736 __utac_acc__Specification5_spec__2_#t~ret42 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret42;havoc __utac_acc__Specification5_spec__2_#t~ret42; 982#L435 assume !(0 != ~pumpRunning~0); 981#L634 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 979#L666 assume !(0 != ~pumpRunning~0); 806#L641 havoc __utac_acc__Specification5_spec__3_#t~ret43, __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 747#L944 __utac_acc__Specification5_spec__3_#t~ret43 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret43;havoc __utac_acc__Specification5_spec__3_#t~ret43; 748#L446 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 796#L736-1 __utac_acc__Specification5_spec__3_#t~ret44 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 966#L450 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 798#L446-1 [2021-10-28 23:04:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:10,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:04:10,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:10,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157927894] [2021-10-28 23:04:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:10,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,466 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash -801866082, now seen corresponding path program 1 times [2021-10-28 23:04:10,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:10,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259473208] [2021-10-28 23:04:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:10,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,618 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:04:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:10,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1243110812, now seen corresponding path program 1 times [2021-10-28 23:04:10,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:04:10,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345375097] [2021-10-28 23:04:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:10,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:04:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,685 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:04:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:04:10,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:05:26,856 WARN L207 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:06:31,748 WARN L207 SmtUtils]: Spent 32.85 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:06:31,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:06:31 BoogieIcfgContainer [2021-10-28 23:06:31,882 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:06:31,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:06:31,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:06:31,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:06:31,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:04:08" (3/4) ... [2021-10-28 23:06:31,887 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:06:31,943 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:06:31,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:06:31,944 INFO L168 Benchmark]: Toolchain (without parser) took 145641.63 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 78.5 MB in the beginning and 68.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 50.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,945 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:06:31,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.84 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 81.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.43 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 78.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,951 INFO L168 Benchmark]: Boogie Preprocessor took 76.60 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,951 INFO L168 Benchmark]: RCFGBuilder took 1270.92 ms. Allocated memory is still 113.2 MB. Free memory was 76.5 MB in the beginning and 74.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,952 INFO L168 Benchmark]: BuchiAutomizer took 143436.85 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 74.2 MB in the beginning and 70.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,952 INFO L168 Benchmark]: Witness Printer took 60.22 ms. Allocated memory is still 153.1 MB. Free memory was 70.7 MB in the beginning and 68.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:06:31,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 702.84 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 81.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.43 ms. Allocated memory is still 113.2 MB. Free memory was 81.6 MB in the beginning and 78.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.60 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1270.92 ms. Allocated memory is still 113.2 MB. Free memory was 76.5 MB in the beginning and 74.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143436.85 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 74.2 MB in the beginning and 70.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 83.5 MB. Max. memory is 16.1 GB. * Witness Printer took 60.22 ms. Allocated memory is still 153.1 MB. Free memory was 70.7 MB in the beginning and 68.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 255 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 142.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 255 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 404 SDslu, 387 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 810]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23eaf639=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a63108f=0, NULL=27662, NULL=0, NULL=1, retValue_acc=0, NULL=27657, NULL=0, NULL=27660, NULL=27667, NULL=8193, methaneLevelCritical=0, NULL=27668, tmp=1, NULL=0, tmp=0, tmp___1=0, NULL=27670, NULL=0, NULL=0, NULL=8200, NULL=27669, NULL=27666, cleanupTimeShifts=4, NULL=27656, switchedOnBeforeTS=0, NULL=8195, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5231a588=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30d57971=0, \result=0, NULL=27663, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a3aae70=0, NULL=0, NULL=0, NULL=0, NULL=8197, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=8198, \result=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57f5025c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a05df3a=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e01daa9=0, NULL=0, NULL=0, NULL=27664, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bdc1fba=0, retValue_acc=1, NULL=27661, NULL=0, NULL=0, NULL=0, NULL=8196, NULL=8191, NULL=0, retValue_acc=1, NULL=8192, tmp___2=59, NULL=0, NULL=27672, tmp___0=0, NULL=8194, splverifierCounter=0, NULL=0, NULL=0, NULL=8190, NULL=27671, NULL=27658, head=0, NULL=0, NULL=0, tmp=0, NULL=8199, NULL=0, NULL=0, retValue_acc=0, NULL=27659, NULL=27665} - 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; [L419] int switchedOnBeforeTS ; [L468] int cleanupTimeShifts = 4; [L624] int pumpRunning = 0; [L625] int systemActive = 1; [L869] int waterLevel = 1; [L870] int methaneLevelCritical = 0; [L550] int retValue_acc ; [L551] int tmp ; [L599] int retValue_acc ; [L602] retValue_acc = 1 [L603] return (retValue_acc); [L557] tmp = valid_product() [L559] COND TRUE \read(tmp) [L424] switchedOnBeforeTS = 0 [L801] int splverifierCounter ; [L802] int tmp ; [L803] int tmp___0 ; [L804] int tmp___1 ; [L805] int tmp___2 ; [L808] splverifierCounter = 0 Loop: [L810] COND TRUE 1 [L812] COND TRUE splverifierCounter < 4 [L818] tmp = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp)) [L828] tmp___0 = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp___0)) [L838] tmp___2 = __VERIFIER_nondet_int() [L840] COND TRUE \read(tmp___2) [L795] systemActive = 1 [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L433] switchedOnBeforeTS = isPumpRunning() [L634] COND FALSE !(\read(pumpRunning)) [L641] COND TRUE \read(systemActive) [L663] int tmp ; [L666] COND FALSE !(\read(pumpRunning)) [L439] int tmp ; [L440] int tmp___0 ; [L940] int retValue_acc ; [L943] retValue_acc = waterLevel [L944] return (retValue_acc); [L444] tmp = getWaterLevel() [L446] COND TRUE tmp != 2 [L732] int retValue_acc ; [L735] retValue_acc = pumpRunning [L736] return (retValue_acc); [L448] tmp___0 = isPumpRunning() [L450] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:06:32,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb1d29b8-72a3-4334-88a2-8641c60dd1ca/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...