./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be --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 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-e943c26 [2021-10-21 19:21:19,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:21:19,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:21:19,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:21:19,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:21:19,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:21:19,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:21:19,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:21:19,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:21:19,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:21:19,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:21:19,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:21:19,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:21:19,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:21:19,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:21:19,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:21:19,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:21:19,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:21:19,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:21:19,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:21:19,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:21:19,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:21:19,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:21:19,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:21:19,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:21:19,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:21:19,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:21:19,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:21:19,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:21:19,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:21:19,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:21:19,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:21:19,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:21:19,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:21:19,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:21:19,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:21:19,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:21:19,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:21:19,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:21:19,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:21:19,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:21:19,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:21:19,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:21:19,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:21:19,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:21:19,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:21:19,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:21:19,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:21:19,914 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:21:19,914 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:21:19,914 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:21:19,915 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:21:19,915 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:21:19,916 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:21:19,916 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:21:19,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:21:19,917 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:21:19,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:21:19,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:21:19,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:21:19,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:21:19,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:21:19,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:21:19,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:21:19,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:21:19,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:21:19,920 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:21:19,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:21:19,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:21:19,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:21:19,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:21:19,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:21:19,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:21:19,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:21:19,924 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:21:19,924 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_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31801b0d0a8db366707af3e7371b9dc02f7c34625c63f4c3f856015d4449b4b2 [2021-10-21 19:21:20,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:21:20,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:21:20,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:21:20,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:21:20,221 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:21:20,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2021-10-21 19:21:20,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/data/b0eb2f64b/d9cd04d4fb31479b906910275c3bde9a/FLAG3f325d26e [2021-10-21 19:21:20,830 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:21:20,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c [2021-10-21 19:21:20,849 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/data/b0eb2f64b/d9cd04d4fb31479b906910275c3bde9a/FLAG3f325d26e [2021-10-21 19:21:21,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/data/b0eb2f64b/d9cd04d4fb31479b906910275c3bde9a [2021-10-21 19:21:21,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:21:21,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:21:21,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:21,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:21:21,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:21:21,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5267e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21, skipping insertion in model container [2021-10-21 19:21:21,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:21:21,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:21:21,502 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_c07e9c94-12c5-4d02-b2d8-5586522fc950/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2021-10-21 19:21:21,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:21,521 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:21:21,631 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_c07e9c94-12c5-4d02-b2d8-5586522fc950/sv-benchmarks/c/product-lines/minepump_spec5_product40.cil.c[17098,17111] [2021-10-21 19:21:21,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:21,658 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:21:21,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21 WrapperNode [2021-10-21 19:21:21,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:21,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:21,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:21:21,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:21:21,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:21,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:21:21,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:21:21,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:21:21,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:21:21,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:21:21,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:21:21,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:21:21,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (1/1) ... [2021-10-21 19:21:21,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:21:21,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:21:21,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:21:21,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:21:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:21:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:21:21,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:21:21,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:21:22,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:21:22,858 INFO L299 CfgBuilder]: Removed 176 assume(true) statements. [2021-10-21 19:21:22,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:22 BoogieIcfgContainer [2021-10-21 19:21:22,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:21:22,863 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:21:22,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:21:22,868 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:21:22,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:22,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:21:21" (1/3) ... [2021-10-21 19:21:22,871 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dbbc3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:21:22, skipping insertion in model container [2021-10-21 19:21:22,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:22,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:21" (2/3) ... [2021-10-21 19:21:22,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dbbc3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:21:22, skipping insertion in model container [2021-10-21 19:21:22,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:22,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:22" (3/3) ... [2021-10-21 19:21:22,873 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product40.cil.c [2021-10-21 19:21:22,924 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:21:22,924 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:21:22,924 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:21:22,924 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:21:22,924 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:21:22,924 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:21:22,924 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:21:22,924 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:21:22,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-21 19:21:22,987 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-21 19:21:22,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:22,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:22,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:22,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:22,996 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:21:22,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-21 19:21:23,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-21 19:21:23,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:23,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:23,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:23,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:23,026 INFO L791 eck$LassoCheckResult]: Stem: 107#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 112#L887true 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; 69#L895true main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 48#L842true assume 0 != main_~tmp~8; 68#L815true ~switchedOnBeforeTS~0 := 0; 87#L713true havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 31#L734-1true [2021-10-21 19:21:23,030 INFO L793 eck$LassoCheckResult]: Loop: 31#L734-1true assume !false; 16#L281true assume test_~splverifierCounter~0 < 4; 7#L282true test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 117#L290true assume !(0 != test_~tmp~3); 106#L290-1true test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 62#L300true assume !(0 != test_~tmp___0~1); 43#L300-1true test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 66#L310true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 60#L318-1true havoc __utac_acc__Specification5_spec__2_#t~ret66;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 73#L184true __utac_acc__Specification5_spec__2_#t~ret66 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret66;havoc __utac_acc__Specification5_spec__2_#t~ret66; 120#L723true assume !(0 != ~pumpRunning~0); 86#L73true assume !(0 != ~systemActive~0); 11#L80true havoc __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 100#L975true __utac_acc__Specification5_spec__3_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 83#L734true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 31#L734-1true [2021-10-21 19:21:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:21:23,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:23,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089394245] [2021-10-21 19:21:23,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:23,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:23,339 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:23,527 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:23,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:23,542 INFO L82 PathProgramCache]: Analyzing trace with hash 676826806, now seen corresponding path program 1 times [2021-10-21 19:21:23,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:23,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315152020] [2021-10-21 19:21:23,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:23,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:23,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:21:23,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315152020] [2021-10-21 19:21:23,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315152020] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:23,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:23,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:21:23,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249066595] [2021-10-21 19:21:23,634 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:21:23,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:21:23,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:21:23,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:21:23,659 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.5254237288135593) internal successors, (180), 118 states have internal predecessors, (180), 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) [2021-10-21 19:21:23,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:23,752 INFO L93 Difference]: Finished difference Result 231 states and 335 transitions. [2021-10-21 19:21:23,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:23,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 335 transitions. [2021-10-21 19:21:23,764 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 150 [2021-10-21 19:21:23,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 217 states and 320 transitions. [2021-10-21 19:21:23,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 217 [2021-10-21 19:21:23,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2021-10-21 19:21:23,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 217 states and 320 transitions. [2021-10-21 19:21:23,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:21:23,785 INFO L681 BuchiCegarLoop]: Abstraction has 217 states and 320 transitions. [2021-10-21 19:21:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states and 320 transitions. [2021-10-21 19:21:23,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2021-10-21 19:21:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.4744186046511627) internal successors, (317), 214 states have internal predecessors, (317), 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) [2021-10-21 19:21:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2021-10-21 19:21:23,852 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2021-10-21 19:21:23,852 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 317 transitions. [2021-10-21 19:21:23,852 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:21:23,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 317 transitions. [2021-10-21 19:21:23,855 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-10-21 19:21:23,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:23,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:23,856 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:23,856 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:23,857 INFO L791 eck$LassoCheckResult]: Stem: 484#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 415#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 416#L887 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; 452#L895 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 433#L842 assume 0 != main_~tmp~8; 434#L815 ~switchedOnBeforeTS~0 := 0; 451#L713 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 470#L734-1 [2021-10-21 19:21:23,857 INFO L793 eck$LassoCheckResult]: Loop: 470#L734-1 assume !false; 497#L281 assume test_~splverifierCounter~0 < 4; 498#L282 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 530#L290 assume !(0 != test_~tmp~3); 482#L290-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 446#L300 assume !(0 != test_~tmp___0~1); 426#L300-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 427#L310 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 449#L318-1 havoc __utac_acc__Specification5_spec__2_#t~ret66;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 520#L184 __utac_acc__Specification5_spec__2_#t~ret66 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret66;havoc __utac_acc__Specification5_spec__2_#t~ret66; 517#L723 assume !(0 != ~pumpRunning~0); 515#L73 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 510#L131 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 505#L105-1 assume !(0 == ~pumpRunning~0); 504#L80 havoc __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 503#L975 __utac_acc__Specification5_spec__3_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 499#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 470#L734-1 [2021-10-21 19:21:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:23,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:21:23,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:23,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033832802] [2021-10-21 19:21:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:23,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:23,907 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:23,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:23,968 INFO L82 PathProgramCache]: Analyzing trace with hash -549788339, now seen corresponding path program 1 times [2021-10-21 19:21:23,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:23,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11300722] [2021-10-21 19:21:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:23,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:23,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:21:23,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11300722] [2021-10-21 19:21:23,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11300722] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:23,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:23,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:21:23,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725628581] [2021-10-21 19:21:23,988 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:21:23,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:21:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:21:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:21:23,990 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:21:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:24,104 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2021-10-21 19:21:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:24,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 439 transitions. [2021-10-21 19:21:24,110 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2021-10-21 19:21:24,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 314 states and 439 transitions. [2021-10-21 19:21:24,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 314 [2021-10-21 19:21:24,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 314 [2021-10-21 19:21:24,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 439 transitions. [2021-10-21 19:21:24,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:21:24,125 INFO L681 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2021-10-21 19:21:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 439 transitions. [2021-10-21 19:21:24,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-10-21 19:21:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 314 states have (on average 1.3980891719745223) internal successors, (439), 313 states have internal predecessors, (439), 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) [2021-10-21 19:21:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 439 transitions. [2021-10-21 19:21:24,145 INFO L704 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2021-10-21 19:21:24,145 INFO L587 BuchiCegarLoop]: Abstraction has 314 states and 439 transitions. [2021-10-21 19:21:24,145 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:21:24,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 439 transitions. [2021-10-21 19:21:24,148 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2021-10-21 19:21:24,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:24,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:24,149 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:24,149 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] [2021-10-21 19:21:24,150 INFO L791 eck$LassoCheckResult]: Stem: 1057#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 961#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 962#L887 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; 1006#L895 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 981#L842 assume 0 != main_~tmp~8; 982#L815 ~switchedOnBeforeTS~0 := 0; 1005#L713 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1031#L734-1 [2021-10-21 19:21:24,150 INFO L793 eck$LassoCheckResult]: Loop: 1031#L734-1 assume !false; 1089#L281 assume test_~splverifierCounter~0 < 4; 1084#L282 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 1085#L290 assume !(0 != test_~tmp~3); 1079#L290-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 1080#L300 assume !(0 != test_~tmp___0~1); 1074#L300-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 1075#L310 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 996#L318-1 havoc __utac_acc__Specification5_spec__2_#t~ret66;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 997#L184 __utac_acc__Specification5_spec__2_#t~ret66 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret66;havoc __utac_acc__Specification5_spec__2_#t~ret66; 1009#L723 assume !(0 != ~pumpRunning~0); 1030#L73 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 967#L131 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 968#L105-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 992#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1127#L988-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1125#L233-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 963#L233-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 964#L239-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1059#L109-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 909#L80 havoc __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 910#L975 __utac_acc__Specification5_spec__3_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 1137#L734 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 1031#L734-1 [2021-10-21 19:21:24,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:21:24,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:24,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825202240] [2021-10-21 19:21:24,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1721068121, now seen corresponding path program 1 times [2021-10-21 19:21:24,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:24,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437955309] [2021-10-21 19:21:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:21:24,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:21:24,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437955309] [2021-10-21 19:21:24,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437955309] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:24,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:24,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:21:24,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660360550] [2021-10-21 19:21:24,273 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:21:24,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:21:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:21:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:21:24,275 INFO L87 Difference]: Start difference. First operand 314 states and 439 transitions. cyclomatic complexity: 128 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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) [2021-10-21 19:21:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:24,478 INFO L93 Difference]: Finished difference Result 862 states and 1177 transitions. [2021-10-21 19:21:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:21:24,479 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 862 states and 1177 transitions. [2021-10-21 19:21:24,491 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 575 [2021-10-21 19:21:24,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 862 states to 862 states and 1177 transitions. [2021-10-21 19:21:24,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 862 [2021-10-21 19:21:24,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 862 [2021-10-21 19:21:24,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 862 states and 1177 transitions. [2021-10-21 19:21:24,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:21:24,507 INFO L681 BuchiCegarLoop]: Abstraction has 862 states and 1177 transitions. [2021-10-21 19:21:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states and 1177 transitions. [2021-10-21 19:21:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 621. [2021-10-21 19:21:24,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 621 states have (on average 1.357487922705314) internal successors, (843), 620 states have internal predecessors, (843), 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) [2021-10-21 19:21:24,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 843 transitions. [2021-10-21 19:21:24,544 INFO L704 BuchiCegarLoop]: Abstraction has 621 states and 843 transitions. [2021-10-21 19:21:24,544 INFO L587 BuchiCegarLoop]: Abstraction has 621 states and 843 transitions. [2021-10-21 19:21:24,544 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:21:24,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 621 states and 843 transitions. [2021-10-21 19:21:24,546 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 446 [2021-10-21 19:21:24,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:24,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:24,548 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:24,548 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] [2021-10-21 19:21:24,548 INFO L791 eck$LassoCheckResult]: Stem: 2226#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2149#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~6, main_~tmp~8;havoc main_~retValue_acc~6;havoc main_~tmp~8; 2150#L887 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; 2185#L895 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 2165#L842 assume 0 != main_~tmp~8; 2166#L815 ~switchedOnBeforeTS~0 := 0; 2184#L713 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2090#L734-1 [2021-10-21 19:21:24,548 INFO L793 eck$LassoCheckResult]: Loop: 2090#L734-1 assume !false; 2113#L281 assume test_~splverifierCounter~0 < 4; 2093#L282 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 2094#L290 assume !(0 != test_~tmp~3); 2224#L290-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 2180#L300 assume !(0 != test_~tmp___0~1); 2157#L300-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 2158#L310 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2177#L318-1 havoc __utac_acc__Specification5_spec__2_#t~ret66;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2178#L184 __utac_acc__Specification5_spec__2_#t~ret66 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret66;havoc __utac_acc__Specification5_spec__2_#t~ret66; 2189#L723 assume !(0 != ~pumpRunning~0); 2232#L73 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2620#L131 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2473#L105-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 2206#L983-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 2207#L988-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 2459#L233-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 2458#L233-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2457#L239-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2228#L109-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2104#L80 havoc __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_#t~ret68, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 2105#L975 __utac_acc__Specification5_spec__3_#t~ret67 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 2198#L734 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2199#L184-1 __utac_acc__Specification5_spec__3_#t~ret68 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret68;havoc __utac_acc__Specification5_spec__3_#t~ret68; 2169#L738 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 2090#L734-1 [2021-10-21 19:21:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-21 19:21:24,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:24,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195588718] [2021-10-21 19:21:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,585 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,635 INFO L82 PathProgramCache]: Analyzing trace with hash 384043252, now seen corresponding path program 1 times [2021-10-21 19:21:24,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:24,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384160766] [2021-10-21 19:21:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:24,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:24,658 INFO L82 PathProgramCache]: Analyzing trace with hash 320617070, now seen corresponding path program 1 times [2021-10-21 19:21:24,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:24,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86524333] [2021-10-21 19:21:24,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:24,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,728 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:24,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:22:23,776 WARN L207 SmtUtils]: Spent 58.61 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:23:40,805 WARN L207 SmtUtils]: Spent 37.87 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:23:41,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:23:41 BoogieIcfgContainer [2021-10-21 19:23:41,103 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:23:41,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:23:41,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:23:41,105 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:23:41,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:22" (3/4) ... [2021-10-21 19:23:41,108 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:23:41,172 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:23:41,172 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:23:41,174 INFO L168 Benchmark]: Toolchain (without parser) took 140043.01 ms. Allocated memory was 92.3 MB in the beginning and 169.9 MB in the end (delta: 77.6 MB). Free memory was 61.5 MB in the beginning and 121.4 MB in the end (delta: -59.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,174 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:23:41,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.62 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 97.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.70 ms. Allocated memory is still 127.9 MB. Free memory was 96.6 MB in the beginning and 93.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,177 INFO L168 Benchmark]: Boogie Preprocessor took 52.07 ms. Allocated memory is still 127.9 MB. Free memory was 93.5 MB in the beginning and 90.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,177 INFO L168 Benchmark]: RCFGBuilder took 1046.39 ms. Allocated memory is still 127.9 MB. Free memory was 90.3 MB in the beginning and 91.2 MB in the end (delta: -900.0 kB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,178 INFO L168 Benchmark]: BuchiAutomizer took 138240.08 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 90.5 MB in the beginning and 124.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 99.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,179 INFO L168 Benchmark]: Witness Printer took 68.56 ms. Allocated memory is still 169.9 MB. Free memory was 124.5 MB in the beginning and 121.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:41,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.62 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 97.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.70 ms. Allocated memory is still 127.9 MB. Free memory was 96.6 MB in the beginning and 93.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.07 ms. Allocated memory is still 127.9 MB. Free memory was 93.5 MB in the beginning and 90.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1046.39 ms. Allocated memory is still 127.9 MB. Free memory was 90.3 MB in the beginning and 91.2 MB in the end (delta: -900.0 kB). Peak memory consumption was 35.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138240.08 ms. Allocated memory was 127.9 MB in the beginning and 169.9 MB in the end (delta: 41.9 MB). Free memory was 90.5 MB in the beginning and 124.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 99.9 MB. Max. memory is 16.1 GB. * Witness Printer took 68.56 ms. Allocated memory is still 169.9 MB. Free memory was 124.5 MB in the beginning and 121.4 MB in the end (delta: 3.2 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 5 locations. The remainder module has 621 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 137.3s. Construction of modules took 0.1s. 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 85.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 243 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 621 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 578 SDtfs, 816 SDslu, 765 SDs, 0 SdLazy, 130 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 195.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 280]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10231} State at position 1 is {NULL=0, NULL=0, retValue_acc=1, NULL=10231, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40977196=0, NULL=10243, methaneLevelCritical=0, NULL=10233, tmp=0, retValue_acc=0, tmp___1=0, NULL=10237, NULL=0, cleanupTimeShifts=4, NULL=10253, NULL=0, waterLevel=1, NULL=10240, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62770689=0, NULL=0, NULL=10239, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d2b815c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@226ecf28=66, NULL=10238, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@665ade7f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e423a7d=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ae24283=0, NULL=0, NULL=10234, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21cfd60f=0, NULL=0, tmp___0=0, NULL=10254, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2449f90b=0, NULL=10251, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11cdfc18=0, head=0, NULL=10252, NULL=10248, NULL=10258, NULL=0, retValue_acc=0, NULL=0, NULL=10245, NULL=10236, tmp=1, NULL=0, tmp___0=0, NULL=10235, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=10249, NULL=10256, \result=0, NULL=10241, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e3db8ec=0, NULL=0, NULL=10259, tmp___0=0, NULL=10257, \result=0, NULL=10255, NULL=10250, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=10246, tmp___2=66, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=10244, retValue_acc=0, NULL=10232, NULL=0, NULL=0, NULL=10260, NULL=10242} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L508] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L707] int switchedOnBeforeTS ; [L756] int cleanupTimeShifts = 4; [L900] int waterLevel = 1; [L901] int methaneLevelCritical = 0; [L833] int retValue_acc ; [L834] int tmp ; [L891] int retValue_acc ; [L894] retValue_acc = 1 [L895] return (retValue_acc); [L840] tmp = valid_product() [L842] COND TRUE \read(tmp) [L712] switchedOnBeforeTS = 0 [L271] int splverifierCounter ; [L272] int tmp ; [L273] int tmp___0 ; [L274] int tmp___1 ; [L275] int tmp___2 ; [L278] splverifierCounter = 0 Loop: [L280] COND TRUE 1 [L282] COND TRUE splverifierCounter < 4 [L288] tmp = __VERIFIER_nondet_int() [L290] COND FALSE !(\read(tmp)) [L298] tmp___0 = __VERIFIER_nondet_int() [L300] COND FALSE !(\read(tmp___0)) [L308] tmp___2 = __VERIFIER_nondet_int() [L310] COND TRUE \read(tmp___2) [L262] systemActive = 1 [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L721] switchedOnBeforeTS = isPumpRunning() [L73] COND FALSE !(\read(pumpRunning)) [L80] COND TRUE \read(systemActive) [L128] int tmp ; [L131] COND FALSE !(\read(pumpRunning)) [L102] int tmp ; [L105] COND TRUE ! pumpRunning [L225] int retValue_acc ; [L226] int tmp ; [L227] int tmp___0 ; [L980] int retValue_acc ; [L983] COND TRUE waterLevel < 2 [L984] retValue_acc = 1 [L985] return (retValue_acc); [L231] tmp = isHighWaterSensorDry() [L233] COND TRUE \read(tmp) [L234] tmp___0 = 0 [L238] retValue_acc = tmp___0 [L239] return (retValue_acc); [L107] tmp = isHighWaterLevel() [L109] COND FALSE !(\read(tmp)) [L727] int tmp ; [L728] int tmp___0 ; [L971] int retValue_acc ; [L974] retValue_acc = waterLevel [L975] return (retValue_acc); [L732] tmp = getWaterLevel() [L734] COND TRUE tmp != 2 [L180] int retValue_acc ; [L183] retValue_acc = pumpRunning [L184] return (retValue_acc); [L736] tmp___0 = isPumpRunning() [L738] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:23:41,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c07e9c94-12c5-4d02-b2d8-5586522fc950/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...