./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product13.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_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/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_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/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_a473b8f3-461b-40f9-98bf-00dca50fb541/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 a5d8d581f80f5cde7366deb7b852c58bb4870d5154bc31eab8a2e0d970b8f8d6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:48:41,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:48:41,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:48:41,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:48:41,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:48:41,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:48:41,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:48:41,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:48:41,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:48:41,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:48:41,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:48:41,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:48:41,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:48:41,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:48:41,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:48:41,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:48:41,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:48:41,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:48:41,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:48:41,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:48:41,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:48:41,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:48:41,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:48:41,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:48:41,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:48:41,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:48:41,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:48:41,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:48:41,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:48:41,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:48:41,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:48:41,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:48:41,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:48:41,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:48:41,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:48:41,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:48:41,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:48:41,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:48:41,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:48:41,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:48:41,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:48:41,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 22:48:42,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:48:42,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:48:42,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:48:42,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:48:42,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:48:42,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:48:42,043 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:48:42,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 22:48:42,043 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 22:48:42,044 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 22:48:42,045 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 22:48:42,045 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 22:48:42,045 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 22:48:42,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:48:42,046 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:48:42,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:48:42,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:48:42,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:48:42,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:48:42,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 22:48:42,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 22:48:42,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 22:48:42,048 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:48:42,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:48:42,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 22:48:42,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:48:42,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 22:48:42,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:48:42,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:48:42,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:48:42,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:48:42,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:48:42,053 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 22:48:42,054 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_a473b8f3-461b-40f9-98bf-00dca50fb541/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5d8d581f80f5cde7366deb7b852c58bb4870d5154bc31eab8a2e0d970b8f8d6 [2021-10-28 22:48:42,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:48:42,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:48:42,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:48:42,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:48:42,374 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:48:42,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c [2021-10-28 22:48:42,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/data/e9af9464b/6bc31f9ec3ac4a37a15817491bdfbe38/FLAG93f103aab [2021-10-28 22:48:43,022 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:48:43,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c [2021-10-28 22:48:43,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/data/e9af9464b/6bc31f9ec3ac4a37a15817491bdfbe38/FLAG93f103aab [2021-10-28 22:48:43,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/data/e9af9464b/6bc31f9ec3ac4a37a15817491bdfbe38 [2021-10-28 22:48:43,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:48:43,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:48:43,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:43,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:48:43,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:48:43,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@471bb625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43, skipping insertion in model container [2021-10-28 22:48:43,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:48:43,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:48:43,721 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_a473b8f3-461b-40f9-98bf-00dca50fb541/sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c[13760,13773] [2021-10-28 22:48:43,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:43,780 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:48:43,847 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_a473b8f3-461b-40f9-98bf-00dca50fb541/sv-benchmarks/c/product-lines/minepump_spec5_product13.cil.c[13760,13773] [2021-10-28 22:48:43,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:48:43,887 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:48:43,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43 WrapperNode [2021-10-28 22:48:43,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:48:43,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:43,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:48:43,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:48:43,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:48:43,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:48:43,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:48:43,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:48:43,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:43,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:44,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:44,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:44,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:44,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:48:44,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:48:44,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:48:44,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:48:44,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (1/1) ... [2021-10-28 22:48:44,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 22:48:44,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:48:44,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 22:48:44,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 22:48:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:48:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:48:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:48:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:48:45,142 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:48:45,143 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-10-28 22:48:45,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:45 BoogieIcfgContainer [2021-10-28 22:48:45,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:48:45,147 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 22:48:45,147 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 22:48:45,153 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 22:48:45,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:48:45,155 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:48:43" (1/3) ... [2021-10-28 22:48:45,157 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a4628b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:48:45, skipping insertion in model container [2021-10-28 22:48:45,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:48:45,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:48:43" (2/3) ... [2021-10-28 22:48:45,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a4628b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:48:45, skipping insertion in model container [2021-10-28 22:48:45,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 22:48:45,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:45" (3/3) ... [2021-10-28 22:48:45,162 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product13.cil.c [2021-10-28 22:48:45,225 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 22:48:45,226 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 22:48:45,226 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 22:48:45,226 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 22:48:45,226 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 22:48:45,226 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 22:48:45,227 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 22:48:45,227 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 22:48:45,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:45,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 22:48:45,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:48:45,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:48:45,294 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:45,294 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:45,294 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 22:48:45,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:45,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 22:48:45,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:48:45,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:48:45,303 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:45,303 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:45,308 INFO L791 eck$LassoCheckResult]: Stem: 53#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 42#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 64#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 24#L83true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 73#L686true assume 0 != main_~tmp~4; 46#L661true ~switchedOnBeforeTS~0 := 0; 43#L463true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 35#L484-1true [2021-10-28 22:48:45,309 INFO L793 eck$LassoCheckResult]: Loop: 35#L484-1true assume !false; 11#L866true assume test_~splverifierCounter~0 < 4; 45#L867true test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 13#L875true assume !(0 != test_~tmp~7); 50#L875-1true test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 57#L885true assume !(0 != test_~tmp___0~1); 66#L885-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 12#L895true assume 0 != test_~tmp___2~0; 34#L901-2true havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 22#L814true __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 60#L473true assume !(0 != ~pumpRunning~0); 69#L712true assume !(0 != ~systemActive~0); 6#L719true havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 33#L586true __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 58#L484true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 35#L484-1true [2021-10-28 22:48:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 22:48:45,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:45,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451424505] [2021-10-28 22:48:45,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:45,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:45,644 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:45,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:45,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash 93981420, now seen corresponding path program 1 times [2021-10-28 22:48:45,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:45,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249272465] [2021-10-28 22:48:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:45,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:45,951 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:45,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2028006630, now seen corresponding path program 1 times [2021-10-28 22:48:45,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:45,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333721524] [2021-10-28 22:48:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:45,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:46,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:48:46,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333721524] [2021-10-28 22:48:46,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333721524] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:46,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:46,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 22:48:46,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495004519] [2021-10-28 22:48:46,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:48:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 22:48:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:48:46,471 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:46,685 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2021-10-28 22:48:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 22:48:46,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 100 transitions. [2021-10-28 22:48:46,691 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 22:48:46,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 93 transitions. [2021-10-28 22:48:46,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-28 22:48:46,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-28 22:48:46,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2021-10-28 22:48:46,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:48:46,700 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 22:48:46,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2021-10-28 22:48:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-28 22:48:46,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 67 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:46,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2021-10-28 22:48:46,738 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 22:48:46,739 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 93 transitions. [2021-10-28 22:48:46,739 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 22:48:46,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 93 transitions. [2021-10-28 22:48:46,741 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-28 22:48:46,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:48:46,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:48:46,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:46,743 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:46,743 INFO L791 eck$LassoCheckResult]: Stem: 235#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 226#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 227#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 207#L83 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 208#L686 assume 0 != main_~tmp~4; 229#L661 ~switchedOnBeforeTS~0 := 0; 228#L463 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 218#L484-1 [2021-10-28 22:48:46,743 INFO L793 eck$LassoCheckResult]: Loop: 218#L484-1 assume !false; 182#L866 assume test_~splverifierCounter~0 < 4; 183#L867 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 190#L875 assume !(0 != test_~tmp~7); 192#L875-1 test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 232#L885 assume !(0 != test_~tmp___0~1); 194#L885-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 185#L895 assume 0 != test_~tmp___2~0; 187#L901-2 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 205#L814 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 206#L473 assume !(0 != ~pumpRunning~0); 200#L712 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 220#L744 assume !(0 != ~pumpRunning~0); 173#L719 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 174#L586 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 217#L484 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 218#L484-1 [2021-10-28 22:48:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:46,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 22:48:46,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:46,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975403630] [2021-10-28 22:48:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:46,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:46,796 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:46,888 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:46,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1402071741, now seen corresponding path program 1 times [2021-10-28 22:48:46,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:46,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799606128] [2021-10-28 22:48:46,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:46,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:46,896 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:46,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:46,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:46,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1576832375, now seen corresponding path program 1 times [2021-10-28 22:48:46,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:46,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829367923] [2021-10-28 22:48:46,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:46,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:48:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:48:46,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:48:46,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829367923] [2021-10-28 22:48:46,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829367923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:48:46,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:48:46,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 22:48:46,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000268129] [2021-10-28 22:48:47,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:48:47,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:48:47,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:48:47,157 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:47,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:48:47,352 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2021-10-28 22:48:47,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:48:47,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 255 transitions. [2021-10-28 22:48:47,370 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2021-10-28 22:48:47,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 188 states and 255 transitions. [2021-10-28 22:48:47,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2021-10-28 22:48:47,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2021-10-28 22:48:47,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188 states and 255 transitions. [2021-10-28 22:48:47,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 22:48:47,384 INFO L681 BuchiCegarLoop]: Abstraction has 188 states and 255 transitions. [2021-10-28 22:48:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states and 255 transitions. [2021-10-28 22:48:47,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 129. [2021-10-28 22:48:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 129 states have (on average 1.3333333333333333) internal successors, (172), 128 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:48:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2021-10-28 22:48:47,411 INFO L704 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2021-10-28 22:48:47,411 INFO L587 BuchiCegarLoop]: Abstraction has 129 states and 172 transitions. [2021-10-28 22:48:47,411 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 22:48:47,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 129 states and 172 transitions. [2021-10-28 22:48:47,416 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2021-10-28 22:48:47,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 22:48:47,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 22:48:47,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:47,418 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:48:47,418 INFO L791 eck$LassoCheckResult]: Stem: 517#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 503#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 504#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 482#L83 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 483#L686 assume 0 != main_~tmp~4; 508#L661 ~switchedOnBeforeTS~0 := 0; 505#L463 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 494#L484-1 [2021-10-28 22:48:47,419 INFO L793 eck$LassoCheckResult]: Loop: 494#L484-1 assume !false; 457#L866 assume test_~splverifierCounter~0 < 4; 458#L867 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 507#L875 assume !(0 != test_~tmp~7); 511#L875-1 test_~tmp___0~1 := test_#t~nondet77;havoc test_#t~nondet77; 512#L885 assume !(0 != test_~tmp___0~1); 464#L885-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 454#L895 assume 0 != test_~tmp___2~0; 456#L901-2 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 563#L814 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 521#L473 assume !(0 != ~pumpRunning~0); 522#L712 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 497#L744 assume !(0 != ~pumpRunning~0); 445#L719 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 446#L586 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 519#L484 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 520#L814-1 __utac_acc__Specification5_spec__3_#t~ret45 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 524#L488 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 494#L484-1 [2021-10-28 22:48:47,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:47,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 22:48:47,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:47,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558483575] [2021-10-28 22:48:47,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:47,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,483 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,534 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:47,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1228773470, now seen corresponding path program 1 times [2021-10-28 22:48:47,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:47,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113373805] [2021-10-28 22:48:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:47,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,541 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:48:47,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:48:47,550 INFO L85 PathProgramCache]: Analyzing trace with hash 787528740, now seen corresponding path program 1 times [2021-10-28 22:48:47,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:48:47,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478350302] [2021-10-28 22:48:47,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:48:47,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:48:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,586 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:48:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:48:47,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:49:57,842 WARN L207 SmtUtils]: Spent 1.17 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 22:51:00,114 WARN L207 SmtUtils]: Spent 29.84 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 22:51:00,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:51:00 BoogieIcfgContainer [2021-10-28 22:51:00,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 22:51:00,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:51:00,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:51:00,237 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:51:00,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:48:45" (3/4) ... [2021-10-28 22:51:00,240 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 22:51:00,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:51:00,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:51:00,301 INFO L168 Benchmark]: Toolchain (without parser) took 136960.59 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 89.6 MB in the beginning and 73.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,302 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 60.3 MB in the beginning and 60.2 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:51:00,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.30 ms. Allocated memory is still 123.7 MB. Free memory was 89.2 MB in the beginning and 92.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.04 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 89.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,304 INFO L168 Benchmark]: Boogie Preprocessor took 78.30 ms. Allocated memory is still 123.7 MB. Free memory was 89.8 MB in the beginning and 87.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,305 INFO L168 Benchmark]: RCFGBuilder took 1102.39 ms. Allocated memory is still 123.7 MB. Free memory was 87.1 MB in the beginning and 47.8 MB in the end (delta: 39.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,306 INFO L168 Benchmark]: BuchiAutomizer took 135089.37 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 77.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,307 INFO L168 Benchmark]: Witness Printer took 63.49 ms. Allocated memory is still 148.9 MB. Free memory was 77.1 MB in the beginning and 73.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 22:51:00,311 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 86.0 MB. Free memory was 60.3 MB in the beginning and 60.2 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 546.30 ms. Allocated memory is still 123.7 MB. Free memory was 89.2 MB in the beginning and 92.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.04 ms. Allocated memory is still 123.7 MB. Free memory was 92.8 MB in the beginning and 89.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.30 ms. Allocated memory is still 123.7 MB. Free memory was 89.8 MB in the beginning and 87.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1102.39 ms. Allocated memory is still 123.7 MB. Free memory was 87.1 MB in the beginning and 47.8 MB in the end (delta: 39.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135089.37 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 47.8 MB in the beginning and 77.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.49 ms. Allocated memory is still 148.9 MB. Free memory was 77.1 MB in the beginning and 73.9 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 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 6 locations. The remainder module has 129 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 134.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 59 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 129 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 238 SDtfs, 568 SDslu, 274 SDs, 0 SdLazy, 75 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 865]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3597a72b=0, NULL=0, NULL=0, NULL=33014, NULL=0, NULL=1, NULL=0, NULL=33011, NULL=0, NULL=33000, retValue_acc=0, NULL=33008, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38e06b48=0, NULL=33006, tmp=1, NULL=0, NULL=0, tmp=0, NULL=0, tmp___1=0, NULL=33017, NULL=0, NULL=0, NULL=33001, NULL=33016, NULL=33004, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=33015, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2251f6d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fce0598=0, \result=0, NULL=33003, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a3cb454=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c925e2b=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e037f5b=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=33009, \result=1, NULL=0, NULL=0, NULL=0, NULL=32994, NULL=0, NULL=0, NULL=33002, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=6914, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=33013, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92643e1=0, NULL=33005, NULL=33012, NULL=0, NULL=33010, NULL=0, NULL=32999, retValue_acc=1, retValue_acc=1, tmp___2=64, NULL=0, NULL=33018, tmp___0=0, NULL=6913, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31dbd93a=0, NULL=33007, NULL=6912, head=0, NULL=0, NULL=0, tmp=0, NULL=32998, NULL=0, NULL=0, NULL=0, NULL=32997, retValue_acc=0, NULL=32996, NULL=32995} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int switchedOnBeforeTS ; [L511] int waterLevel = 1; [L512] int methaneLevelCritical = 0; [L600] int cleanupTimeShifts = 4; [L702] int pumpRunning = 0; [L703] int systemActive = 1; [L677] int retValue_acc ; [L678] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L684] tmp = valid_product() [L686] COND TRUE \read(tmp) [L462] switchedOnBeforeTS = 0 [L856] int splverifierCounter ; [L857] int tmp ; [L858] int tmp___0 ; [L859] int tmp___1 ; [L860] int tmp___2 ; [L863] splverifierCounter = 0 Loop: [L865] COND TRUE 1 [L867] COND TRUE splverifierCounter < 4 [L873] tmp = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp)) [L883] tmp___0 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___0)) [L893] tmp___2 = __VERIFIER_nondet_int() [L895] COND TRUE \read(tmp___2) [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); [L471] switchedOnBeforeTS = isPumpRunning() [L712] COND FALSE !(\read(pumpRunning)) [L719] COND TRUE \read(systemActive) [L741] int tmp ; [L744] COND FALSE !(\read(pumpRunning)) [L477] int tmp ; [L478] int tmp___0 ; [L582] int retValue_acc ; [L585] retValue_acc = waterLevel [L586] return (retValue_acc); [L482] tmp = getWaterLevel() [L484] COND TRUE tmp != 2 [L810] int retValue_acc ; [L813] retValue_acc = pumpRunning [L814] return (retValue_acc); [L486] tmp___0 = isPumpRunning() [L488] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 22:51:00,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a473b8f3-461b-40f9-98bf-00dca50fb541/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...