./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:08:49,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:08:49,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:08:49,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:08:49,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:08:49,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:08:49,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:08:49,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:08:49,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:08:49,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:08:49,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:08:49,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:08:49,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:08:49,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:08:49,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:08:49,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:08:49,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:08:49,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:08:49,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:08:49,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:08:49,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:08:49,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:08:49,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:08:49,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:08:49,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:08:49,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:08:49,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:08:49,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:08:49,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:08:49,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:08:49,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:08:49,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:08:49,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:08:49,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:08:49,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:08:49,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:08:49,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:08:49,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:08:49,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:08:49,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:08:49,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:08:49,873 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:08:49,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:08:49,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:08:49,900 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:08:49,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:08:49,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:08:49,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:08:49,903 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:08:49,903 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:08:49,904 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:08:49,904 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:08:49,904 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:08:49,905 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:08:49,905 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:08:49,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:08:49,906 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:08:49,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:08:49,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:08:49,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:08:49,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:08:49,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:08:49,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:08:49,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:08:49,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:08:49,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:08:49,908 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:08:49,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:08:49,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:08:49,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:08:49,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:08:49,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:08:49,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:08:49,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:08:49,911 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:08:49,912 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_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb82edc0720115a7daf634e8ab19e02bd974ec3bbe9487e9c9b9a9d3ab6ca10d [2021-10-28 23:08:50,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:08:50,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:08:50,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:08:50,218 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:08:50,218 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:08:50,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2021-10-28 23:08:50,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/data/f135b0f35/0fc355a455f24abfac780113d876ea4a/FLAG2d80daf97 [2021-10-28 23:08:50,926 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:08:50,927 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2021-10-28 23:08:50,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/data/f135b0f35/0fc355a455f24abfac780113d876ea4a/FLAG2d80daf97 [2021-10-28 23:08:51,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/data/f135b0f35/0fc355a455f24abfac780113d876ea4a [2021-10-28 23:08:51,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:08:51,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:08:51,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:08:51,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:08:51,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:08:51,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d15d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51, skipping insertion in model container [2021-10-28 23:08:51,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:08:51,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:08:51,584 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_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2021-10-28 23:08:51,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:08:51,692 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:08:51,739 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_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6627,6640] [2021-10-28 23:08:51,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:08:51,807 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:08:51,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51 WrapperNode [2021-10-28 23:08:51,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:08:51,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:08:51,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:08:51,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:08:51,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:08:51,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:08:51,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:08:51,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:08:51,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:08:51,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:08:51,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:08:51,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:08:51,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (1/1) ... [2021-10-28 23:08:51,959 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:08:51,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:08:51,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:08:51,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:08:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:08:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:08:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:08:52,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:08:52,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:08:52,866 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-28 23:08:52,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:52 BoogieIcfgContainer [2021-10-28 23:08:52,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:08:52,870 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:08:52,870 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:08:52,873 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:08:52,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:08:52,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:08:51" (1/3) ... [2021-10-28 23:08:52,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cb7de29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:08:52, skipping insertion in model container [2021-10-28 23:08:52,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:08:52,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:08:51" (2/3) ... [2021-10-28 23:08:52,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cb7de29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:08:52, skipping insertion in model container [2021-10-28 23:08:52,876 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:08:52,877 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:52" (3/3) ... [2021-10-28 23:08:52,878 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2021-10-28 23:08:52,927 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:08:52,927 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:08:52,927 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:08:52,927 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:08:52,928 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:08:52,928 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:08:52,928 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:08:52,928 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:08:52,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:52,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:08:52,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:08:52,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:08:52,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,981 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:08:52,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:52,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:08:52,988 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:08:52,988 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:08:52,989 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,989 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:52,995 INFO L791 eck$LassoCheckResult]: Stem: 62#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 42#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 16#L430true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 24#L438true main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 12#L394true assume 0 != main_~tmp~3; 43#L368true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 22#L921-1true [2021-10-28 23:08:52,995 INFO L793 eck$LassoCheckResult]: Loop: 22#L921-1true assume !false; 61#L67true assume test_~splverifierCounter~0 < 4; 67#L68true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 77#L76true assume !(0 != test_~tmp~0); 58#L76-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 4#L86true assume !(0 != test_~tmp___0~0); 6#L86-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 49#L96true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 75#L104-1true assume !(0 != ~pumpRunning~0); 50#L141true assume !(0 != ~systemActive~0); 30#L148true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~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; 32#L894true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 48#L921true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 22#L921-1true [2021-10-28 23:08:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:53,002 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:08:53,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:53,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332858550] [2021-10-28 23:08:53,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:53,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:53,234 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:53,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:53,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:53,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1671986804, now seen corresponding path program 1 times [2021-10-28 23:08:53,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:53,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220951402] [2021-10-28 23:08:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:53,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:53,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:08:53,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220951402] [2021-10-28 23:08:53,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220951402] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:53,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:53,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:08:53,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995039964] [2021-10-28 23:08:53,528 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:08:53,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:08:53,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:08:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:08:53,546 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 76 states have internal predecessors, (117), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:53,600 INFO L93 Difference]: Finished difference Result 148 states and 210 transitions. [2021-10-28 23:08:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:08:53,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 210 transitions. [2021-10-28 23:08:53,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-10-28 23:08:53,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 134 states and 195 transitions. [2021-10-28 23:08:53,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2021-10-28 23:08:53,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2021-10-28 23:08:53,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 195 transitions. [2021-10-28 23:08:53,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:08:53,618 INFO L681 BuchiCegarLoop]: Abstraction has 134 states and 195 transitions. [2021-10-28 23:08:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 195 transitions. [2021-10-28 23:08:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-28 23:08:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 132 states have (on average 1.4545454545454546) internal successors, (192), 131 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:53,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2021-10-28 23:08:53,655 INFO L704 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2021-10-28 23:08:53,656 INFO L587 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2021-10-28 23:08:53,656 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:08:53,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 192 transitions. [2021-10-28 23:08:53,659 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-10-28 23:08:53,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:08:53,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:08:53,660 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:08:53,660 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:53,660 INFO L791 eck$LassoCheckResult]: Stem: 314#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 291#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 256#L430 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 257#L438 main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 249#L394 assume 0 != main_~tmp~3; 250#L368 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 292#L921-1 [2021-10-28 23:08:53,660 INFO L793 eck$LassoCheckResult]: Loop: 292#L921-1 assume !false; 312#L67 assume test_~splverifierCounter~0 < 4; 313#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 317#L76 assume !(0 != test_~tmp~0); 309#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 234#L86 assume !(0 != test_~tmp___0~0); 235#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 239#L96 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 301#L104-1 assume !(0 != ~pumpRunning~0); 302#L141 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 303#L173 assume !(0 == ~pumpRunning~0); 334#L148 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~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; 279#L894 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 280#L921 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 292#L921-1 [2021-10-28 23:08:53,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:53,661 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:08:53,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:53,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201067230] [2021-10-28 23:08:53,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:53,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:53,723 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:53,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -323593893, now seen corresponding path program 1 times [2021-10-28 23:08:53,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:53,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522327435] [2021-10-28 23:08:53,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:53,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:53,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:08:53,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522327435] [2021-10-28 23:08:53,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522327435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:08:53,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:53,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:08:53,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187815393] [2021-10-28 23:08:53,884 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:08:53,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:08:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:08:53,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:08:53,891 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. cyclomatic complexity: 63 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:08:53,999 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2021-10-28 23:08:53,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:08:54,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 298 transitions. [2021-10-28 23:08:54,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-10-28 23:08:54,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 298 transitions. [2021-10-28 23:08:54,016 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2021-10-28 23:08:54,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2021-10-28 23:08:54,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 298 transitions. [2021-10-28 23:08:54,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:08:54,025 INFO L681 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:08:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 298 transitions. [2021-10-28 23:08:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-10-28 23:08:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.386046511627907) internal successors, (298), 214 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:08:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 298 transitions. [2021-10-28 23:08:54,052 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:08:54,052 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2021-10-28 23:08:54,052 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:08:54,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 298 transitions. [2021-10-28 23:08:54,054 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2021-10-28 23:08:54,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:08:54,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:08:54,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:08:54,056 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] [2021-10-28 23:08:54,056 INFO L791 eck$LassoCheckResult]: Stem: 662#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 647#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 611#L430 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 612#L438 main_#t~ret30 := valid_product_#res;main_~tmp~3 := main_#t~ret30;havoc main_#t~ret30; 602#L394 assume 0 != main_~tmp~3; 603#L368 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 623#L921-1 [2021-10-28 23:08:54,056 INFO L793 eck$LassoCheckResult]: Loop: 623#L921-1 assume !false; 624#L67 assume test_~splverifierCounter~0 < 4; 748#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 747#L76 assume !(0 != test_~tmp~0); 744#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 743#L86 assume !(0 != test_~tmp___0~0); 741#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 740#L96 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 651#L104-1 assume !(0 != ~pumpRunning~0); 735#L141 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 736#L173 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 729#L902 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 671#L907 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 649#L275 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~1 := 0; 650#L275-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 604#L281 processEnvironment_#t~ret11 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret11;havoc processEnvironment_#t~ret11; 605#L177 assume !(0 != processEnvironment_~tmp~1); 665#L148 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~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; 787#L894 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 785#L921 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 623#L921-1 [2021-10-28 23:08:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:08:54,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:54,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115075917] [2021-10-28 23:08:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:54,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,250 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:54,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:54,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1551490649, now seen corresponding path program 1 times [2021-10-28 23:08:54,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:54,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852691776] [2021-10-28 23:08:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:54,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,283 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,302 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:54,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:08:54,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1536778675, now seen corresponding path program 1 times [2021-10-28 23:08:54,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:08:54,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126303586] [2021-10-28 23:08:54,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:54,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:08:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,346 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:08:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:08:54,396 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:10:03,094 WARN L207 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:11:17,026 WARN L207 SmtUtils]: Spent 35.08 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:11:17,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:11:17 BoogieIcfgContainer [2021-10-28 23:11:17,141 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:11:17,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:11:17,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:11:17,142 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:11:17,142 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:08:52" (3/4) ... [2021-10-28 23:11:17,145 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:11:17,227 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:11:17,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:11:17,228 INFO L168 Benchmark]: Toolchain (without parser) took 145914.65 ms. Allocated memory was 102.8 MB in the beginning and 180.4 MB in the end (delta: 77.6 MB). Free memory was 68.5 MB in the beginning and 133.4 MB in the end (delta: -64.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,229 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:11:17,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.72 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 69.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 67.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,231 INFO L168 Benchmark]: Boogie Preprocessor took 53.99 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 64.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,232 INFO L168 Benchmark]: RCFGBuilder took 931.17 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 64.9 MB in the beginning and 91.0 MB in the end (delta: -26.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,233 INFO L168 Benchmark]: BuchiAutomizer took 144271.14 ms. Allocated memory was 136.3 MB in the beginning and 180.4 MB in the end (delta: 44.0 MB). Free memory was 91.0 MB in the beginning and 135.5 MB in the end (delta: -44.5 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,233 INFO L168 Benchmark]: Witness Printer took 86.07 ms. Allocated memory is still 180.4 MB. Free memory was 135.5 MB in the beginning and 133.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:11:17,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 56.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 489.72 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 69.8 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.27 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 67.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.99 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 64.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 931.17 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 64.9 MB in the beginning and 91.0 MB in the end (delta: -26.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 144271.14 ms. Allocated memory was 136.3 MB in the beginning and 180.4 MB in the end (delta: 44.0 MB). Free memory was 91.0 MB in the beginning and 135.5 MB in the end (delta: -44.5 MB). Peak memory consumption was 94.7 MB. Max. memory is 16.1 GB. * Witness Printer took 86.07 ms. Allocated memory is still 180.4 MB. Free memory was 135.5 MB in the beginning and 133.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 215 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 144.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 143.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 217 SDtfs, 185 SDslu, 146 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28138} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=28165, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c6e372=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35fa3d12=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b3c57d6=0, NULL=28138, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68e83e3c=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@447da44b=0, NULL=0, NULL=0, NULL=28154, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31997636=0, NULL=28144, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12afb071=0, NULL=28150, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0b60c8=0, tmp___0=0, NULL=0, retValue_acc=0, NULL=28145, tmp___1=0, NULL=0, NULL=0, NULL=28143, NULL=28159, cleanupTimeShifts=4, tmp=0, NULL=28166, NULL=28149, tmp___0=0, NULL=28155, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, \result=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=28161, NULL=0, NULL=0, NULL=28139, \result=1, NULL=28158, head=0, pumpRunning=0, \result=0, NULL=28151, tmp=1, NULL=28141, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, \result=1, NULL=28162, NULL=28153, NULL=0, NULL=0, tmp=1, NULL=28142, NULL=0, tmp=1, tmp___2=65, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7657b5f8=0, NULL=28157, splverifierCounter=0, NULL=0, NULL=0, NULL=28146, NULL=28140, NULL=28147, NULL=28163, tmp=0, head=0, NULL=0, NULL=0, NULL=28156, NULL=0, NULL=0, NULL=28152, NULL=0, NULL=28160, NULL=28164, NULL=28148} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L133] int pumpRunning = 0; [L134] int systemActive = 1; [L309] int cleanupTimeShifts = 4; [L621] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L819] int waterLevel = 1; [L820] int methaneLevelCritical = 0; [L385] int retValue_acc ; [L386] int tmp ; [L434] int retValue_acc ; [L437] retValue_acc = 1 [L438] return (retValue_acc); [L392] tmp = valid_product() [L394] COND TRUE \read(tmp) [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L304] systemActive = 1 [L141] COND FALSE !(\read(pumpRunning)) [L148] COND TRUE \read(systemActive) [L170] int tmp ; [L173] COND TRUE ! pumpRunning [L267] int retValue_acc ; [L268] int tmp ; [L269] int tmp___0 ; [L899] int retValue_acc ; [L902] COND TRUE waterLevel < 2 [L903] retValue_acc = 1 [L904] return (retValue_acc); [L273] tmp = isHighWaterSensorDry() [L275] COND TRUE \read(tmp) [L276] tmp___0 = 0 [L280] retValue_acc = tmp___0 [L281] return (retValue_acc); [L175] tmp = isHighWaterLevel() [L177] COND FALSE !(\read(tmp)) [L914] int tmp ; [L915] int tmp___0 ; [L890] int retValue_acc ; [L893] retValue_acc = waterLevel [L894] return (retValue_acc); [L919] tmp = getWaterLevel() [L921] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:11:17,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c9b7a03-4f38-4cd3-a5d4-8a8f5d20679a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...