./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:31:44,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:31:44,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:31:44,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:31:44,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:31:44,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:31:44,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:31:44,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:31:44,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:31:44,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:31:44,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:31:44,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:31:44,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:31:44,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:31:44,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:31:44,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:31:44,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:31:44,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:31:44,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:31:44,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:31:44,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:31:44,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:31:44,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:31:44,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:31:44,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:31:44,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:31:44,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:31:44,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:31:44,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:31:44,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:31:44,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:31:44,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:31:44,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:31:44,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:31:44,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:31:44,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:31:44,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:31:44,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:31:44,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:31:44,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:31:44,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:31:44,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:31:44,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:31:44,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:31:44,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:31:44,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:31:44,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:31:44,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:31:44,827 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:31:44,827 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:31:44,828 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:31:44,828 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:31:44,829 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:31:44,830 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:31:44,830 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:31:44,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:31:44,831 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:31:44,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:31:44,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:31:44,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:31:44,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:31:44,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:31:44,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:31:44,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:31:44,833 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:31:44,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:31:44,833 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:31:44,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:31:44,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:31:44,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:31:44,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:31:44,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:31:44,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:31:44,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:31:44,839 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:31:44,839 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_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4978c2419e4c1644022dd229f44f68c9d14c10177af084ee11ac932b0c1016 [2021-10-21 19:31:45,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:31:45,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:31:45,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:31:45,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:31:45,248 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:31:45,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2021-10-21 19:31:45,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/data/8495a3471/4a551e99031b453ba858f99ccb1813e1/FLAGa19ab1d93 [2021-10-21 19:31:45,996 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:31:45,997 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c [2021-10-21 19:31:46,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/data/8495a3471/4a551e99031b453ba858f99ccb1813e1/FLAGa19ab1d93 [2021-10-21 19:31:46,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/data/8495a3471/4a551e99031b453ba858f99ccb1813e1 [2021-10-21 19:31:46,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:31:46,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:31:46,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:31:46,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:31:46,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:31:46,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:46,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b98decc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46, skipping insertion in model container [2021-10-21 19:31:46,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:46,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:31:46,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:31:46,802 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_bf74a186-a967-48e2-8df9-0e3983fa95a1/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2021-10-21 19:31:46,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:31:46,845 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:31:46,924 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/sv-benchmarks/c/product-lines/minepump_spec2_product41.cil.c[17041,17054] [2021-10-21 19:31:46,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:31:46,965 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:31:46,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46 WrapperNode [2021-10-21 19:31:46,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:31:46,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:31:46,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:31:46,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:31:46,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:31:47,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:31:47,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:31:47,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:31:47,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:31:47,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:31:47,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:31:47,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:31:47,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (1/1) ... [2021-10-21 19:31:47,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:47,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:47,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:47,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:31:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:31:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:31:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:31:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:31:48,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:31:48,225 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-21 19:31:48,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:48 BoogieIcfgContainer [2021-10-21 19:31:48,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:31:48,228 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:31:48,228 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:31:48,237 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:31:48,238 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:48,238 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:31:46" (1/3) ... [2021-10-21 19:31:48,239 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b3d2d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:31:48, skipping insertion in model container [2021-10-21 19:31:48,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:48,240 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:46" (2/3) ... [2021-10-21 19:31:48,240 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b3d2d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:31:48, skipping insertion in model container [2021-10-21 19:31:48,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:48,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:48" (3/3) ... [2021-10-21 19:31:48,242 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2021-10-21 19:31:48,303 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:31:48,303 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:31:48,303 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:31:48,303 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:31:48,303 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:31:48,304 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:31:48,304 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:31:48,304 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:31:48,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 88 states, 87 states have (on average 1.528735632183908) internal successors, (133), 87 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:48,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-21 19:31:48,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:48,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:48,378 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:48,378 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:48,379 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:31:48,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 88 states, 87 states have (on average 1.528735632183908) internal successors, (133), 87 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:48,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-21 19:31:48,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:48,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:48,400 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:48,400 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:48,412 INFO L791 eck$LassoCheckResult]: Stem: 70#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 57#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 5#L823true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 31#L831true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 83#L928true assume 0 != main_~tmp~8; 29#L904true ~methAndRunningLastTime~0 := 0; 51#L59true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 36#L70-1true [2021-10-21 19:31:48,413 INFO L793 eck$LassoCheckResult]: Loop: 36#L70-1true assume !false; 56#L744true assume test_~splverifierCounter~0 < 4; 10#L745true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 80#L753true assume !(0 != test_~tmp~7); 52#L753-1true test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 7#L763true assume !(0 != test_~tmp___0~2); 86#L763-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 65#L773true assume 0 != test_~tmp___2~0; 53#L779-2true assume !(0 != ~pumpRunning~0); 47#L472true assume !(0 != ~systemActive~0); 90#L479true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 64#L681-1true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 87#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 36#L70-1true [2021-10-21 19:31:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:48,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:31:48,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:48,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626292998] [2021-10-21 19:31:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:48,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:48,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:48,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:48,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:48,892 INFO L82 PathProgramCache]: Analyzing trace with hash 3091786, now seen corresponding path program 1 times [2021-10-21 19:31:48,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:48,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086892147] [2021-10-21 19:31:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:48,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:48,916 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:48,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:48,942 INFO L82 PathProgramCache]: Analyzing trace with hash 836388292, now seen corresponding path program 1 times [2021-10-21 19:31:48,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:48,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589663446] [2021-10-21 19:31:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:48,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:49,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:49,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589663446] [2021-10-21 19:31:49,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589663446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:31:49,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:31:49,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:31:49,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10165926] [2021-10-21 19:31:49,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:31:49,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:31:49,420 INFO L87 Difference]: Start difference. First operand has 88 states, 87 states have (on average 1.528735632183908) internal successors, (133), 87 states have internal predecessors, (133), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:49,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:49,681 INFO L93 Difference]: Finished difference Result 88 states and 122 transitions. [2021-10-21 19:31:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:31:49,688 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 122 transitions. [2021-10-21 19:31:49,692 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-21 19:31:49,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 81 states and 115 transitions. [2021-10-21 19:31:49,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 81 [2021-10-21 19:31:49,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 81 [2021-10-21 19:31:49,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 115 transitions. [2021-10-21 19:31:49,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:49,702 INFO L681 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2021-10-21 19:31:49,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 115 transitions. [2021-10-21 19:31:49,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-10-21 19:31:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 80 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2021-10-21 19:31:49,739 INFO L704 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2021-10-21 19:31:49,740 INFO L587 BuchiCegarLoop]: Abstraction has 81 states and 115 transitions. [2021-10-21 19:31:49,740 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:31:49,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 115 transitions. [2021-10-21 19:31:49,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-21 19:31:49,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:49,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:49,743 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:49,743 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:49,743 INFO L791 eck$LassoCheckResult]: Stem: 272#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 264#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 196#L823 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 197#L831 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 240#L928 assume 0 != main_~tmp~8; 238#L904 ~methAndRunningLastTime~0 := 0; 239#L59 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 204#L70-1 [2021-10-21 19:31:49,744 INFO L793 eck$LassoCheckResult]: Loop: 204#L70-1 assume !false; 248#L744 assume test_~splverifierCounter~0 < 4; 208#L745 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 209#L753 assume !(0 != test_~tmp~7); 250#L753-1 test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 200#L763 assume !(0 != test_~tmp___0~2); 202#L763-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 269#L773 assume 0 != test_~tmp___2~0; 213#L779-2 assume !(0 != ~pumpRunning~0); 259#L472 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 218#L504 assume !(0 == ~pumpRunning~0); 220#L479 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 267#L681-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 268#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 204#L70-1 [2021-10-21 19:31:49,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:49,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:31:49,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:49,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769941413] [2021-10-21 19:31:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:49,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:49,825 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:49,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:49,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:49,906 INFO L82 PathProgramCache]: Analyzing trace with hash 54075937, now seen corresponding path program 1 times [2021-10-21 19:31:49,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:49,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30034013] [2021-10-21 19:31:49,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:49,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:49,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:49,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30034013] [2021-10-21 19:31:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30034013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:31:49,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:31:49,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:31:49,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589261800] [2021-10-21 19:31:49,931 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:31:49,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:31:49,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:31:49,932 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. cyclomatic complexity: 36 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) [2021-10-21 19:31:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:50,005 INFO L93 Difference]: Finished difference Result 125 states and 172 transitions. [2021-10-21 19:31:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:31:50,007 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 172 transitions. [2021-10-21 19:31:50,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2021-10-21 19:31:50,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 172 transitions. [2021-10-21 19:31:50,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-10-21 19:31:50,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-10-21 19:31:50,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 172 transitions. [2021-10-21 19:31:50,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:50,030 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2021-10-21 19:31:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 172 transitions. [2021-10-21 19:31:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-21 19:31:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.376) internal successors, (172), 124 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) [2021-10-21 19:31:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2021-10-21 19:31:50,048 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2021-10-21 19:31:50,048 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 172 transitions. [2021-10-21 19:31:50,049 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:31:50,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 172 transitions. [2021-10-21 19:31:50,052 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 86 [2021-10-21 19:31:50,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:50,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:50,053 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:50,053 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] [2021-10-21 19:31:50,054 INFO L791 eck$LassoCheckResult]: Stem: 493#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string54.base, #t~string54.offset, 1);call write~init~int(80, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(117, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(109, #t~string54.base, 3 + #t~string54.offset, 1);call write~init~int(112, #t~string54.base, 4 + #t~string54.offset, 1);call write~init~int(58, #t~string54.base, 5 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 6 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(110, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 2 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(102, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 3 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string60.base, #t~string60.offset, 1);call write~init~int(32, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string62.base, #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 1 + #t~string62.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);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(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #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(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 484#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 408#L823 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 409#L831 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 454#L928 assume 0 != main_~tmp~8; 451#L904 ~methAndRunningLastTime~0 := 0; 452#L59 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 416#L70-1 [2021-10-21 19:31:50,054 INFO L793 eck$LassoCheckResult]: Loop: 416#L70-1 assume !false; 463#L744 assume test_~splverifierCounter~0 < 4; 483#L745 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 530#L753 assume !(0 != test_~tmp~7); 480#L753-1 test_~tmp___0~2 := test_#t~nondet75;havoc test_#t~nondet75; 412#L763 assume !(0 != test_~tmp___0~2); 414#L763-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 491#L773 assume 0 != test_~tmp___2~0; 425#L779-2 assume !(0 != ~pumpRunning~0); 475#L472 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret44, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 430#L504 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret63, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 431#L721 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 444#L726 isHighWaterLevel_#t~ret63 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret63;havoc isHighWaterLevel_#t~ret63; 453#L624 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 418#L624-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 419#L630 processEnvironment_#t~ret44 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret44;havoc processEnvironment_#t~ret44; 439#L508 assume !(0 != processEnvironment_~tmp~4); 435#L479 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 520#L681-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 498#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 416#L70-1 [2021-10-21 19:31:50,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:50,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:31:50,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:50,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039853736] [2021-10-21 19:31:50,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:50,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,104 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,181 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:50,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:50,182 INFO L82 PathProgramCache]: Analyzing trace with hash 851388269, now seen corresponding path program 1 times [2021-10-21 19:31:50,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:50,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533696432] [2021-10-21 19:31:50,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:50,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,191 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:50,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:50,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2016965043, now seen corresponding path program 1 times [2021-10-21 19:31:50,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:50,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408049868] [2021-10-21 19:31:50,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:50,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,250 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:50,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:57,207 WARN L207 SmtUtils]: Spent 1.11 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:34:11,623 WARN L207 SmtUtils]: Spent 37.35 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:34:11,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:34:11 BoogieIcfgContainer [2021-10-21 19:34:11,816 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:34:11,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:34:11,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:34:11,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:34:11,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:48" (3/4) ... [2021-10-21 19:34:11,821 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:34:11,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:34:11,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:34:11,889 INFO L168 Benchmark]: Toolchain (without parser) took 145585.23 ms. Allocated memory was 94.4 MB in the beginning and 197.1 MB in the end (delta: 102.8 MB). Free memory was 63.0 MB in the beginning and 69.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 94.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,889 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:11,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.95 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 62.8 MB in the beginning and 109.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.22 ms. Allocated memory is still 140.5 MB. Free memory was 109.2 MB in the beginning and 106.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,892 INFO L168 Benchmark]: Boogie Preprocessor took 83.95 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 104.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,892 INFO L168 Benchmark]: RCFGBuilder took 1063.82 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 108.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,893 INFO L168 Benchmark]: BuchiAutomizer took 143588.38 ms. Allocated memory was 140.5 MB in the beginning and 197.1 MB in the end (delta: 56.6 MB). Free memory was 108.3 MB in the beginning and 72.1 MB in the end (delta: 36.1 MB). Peak memory consumption was 113.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,894 INFO L168 Benchmark]: Witness Printer took 70.58 ms. Allocated memory is still 197.1 MB. Free memory was 72.1 MB in the beginning and 69.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:11,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.95 ms. Allocated memory was 94.4 MB in the beginning and 140.5 MB in the end (delta: 46.1 MB). Free memory was 62.8 MB in the beginning and 109.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.22 ms. Allocated memory is still 140.5 MB. Free memory was 109.2 MB in the beginning and 106.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.95 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 104.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1063.82 ms. Allocated memory is still 140.5 MB. Free memory was 104.0 MB in the beginning and 108.3 MB in the end (delta: -4.3 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143588.38 ms. Allocated memory was 140.5 MB in the beginning and 197.1 MB in the end (delta: 56.6 MB). Free memory was 108.3 MB in the beginning and 72.1 MB in the end (delta: 36.1 MB). Peak memory consumption was 113.3 MB. Max. memory is 16.1 GB. * Witness Printer took 70.58 ms. Allocated memory is still 197.1 MB. Free memory was 72.1 MB in the beginning and 69.1 MB in the end (delta: 3.0 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 6 locations. The remainder module has 125 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 142.9s. Construction of modules took 0.2s. 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 39.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 125 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 232 SDtfs, 563 SDslu, 56 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 743]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11902} State at position 1 is {NULL=0, NULL=11902, NULL=27999, NULL=0, NULL=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, tmp=0, NULL=0, tmp___1=0, NULL=27991, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c903c4=0, NULL=0, NULL=28012, NULL=27993, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab9b705=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a38d42=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@638d4157=0, waterLevel=1, NULL=0, NULL=0, NULL=28005, NULL=27996, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=0, tmp=1, \result=1, NULL=0, NULL=0, tmp___0=0, NULL=28014, tmp=1, methAndRunningLastTime=0, NULL=28017, head=0, tmp=0, NULL=0, NULL=28010, NULL=28007, NULL=0, NULL=0, NULL=0, NULL=27998, NULL=0, NULL=0, NULL=28015, NULL=28000, NULL=28001, tmp___0=0, NULL=0, NULL=0, NULL=28011, NULL=0, NULL=28002, NULL=28016, NULL=28006, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4181efef=0, NULL=0, NULL=0, systemActive=1, NULL=28003, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70c42221=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=28008, \result=0, NULL=27992, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54bc6a20=49, NULL=28004, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@645b2554=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e89004b=0, NULL=28013, NULL=28009, tmp___2=49, splverifierCounter=0, NULL=0, \result=0, NULL=11903, tmp=0, NULL=27995, NULL=27994, NULL=0, NULL=27997} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L261] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L465] int pumpRunning = 0; [L466] int systemActive = 1; [L638] int waterLevel = 1; [L639] int methaneLevelCritical = 0; [L845] int cleanupTimeShifts = 4; [L919] int retValue_acc ; [L920] int tmp ; [L827] int retValue_acc ; [L830] retValue_acc = 1 [L831] return (retValue_acc); [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) [L58] methAndRunningLastTime = 0 [L734] int splverifierCounter ; [L735] int tmp ; [L736] int tmp___0 ; [L737] int tmp___1 ; [L738] int tmp___2 ; [L741] splverifierCounter = 0 Loop: [L743] COND TRUE 1 [L745] COND TRUE splverifierCounter < 4 [L751] tmp = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp)) [L761] tmp___0 = __VERIFIER_nondet_int() [L763] COND FALSE !(\read(tmp___0)) [L771] tmp___2 = __VERIFIER_nondet_int() [L773] COND TRUE \read(tmp___2) [L472] COND FALSE !(\read(pumpRunning)) [L479] COND TRUE \read(systemActive) [L501] int tmp ; [L504] COND TRUE ! pumpRunning [L616] int retValue_acc ; [L617] int tmp ; [L618] int tmp___0 ; [L718] int retValue_acc ; [L721] COND TRUE waterLevel < 2 [L722] retValue_acc = 1 [L723] return (retValue_acc); [L622] tmp = isHighWaterSensorDry() [L624] COND TRUE \read(tmp) [L625] tmp___0 = 0 [L629] retValue_acc = tmp___0 [L630] return (retValue_acc); [L506] tmp = isHighWaterLevel() [L508] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L677] int retValue_acc ; [L680] retValue_acc = methaneLevelCritical [L681] return (retValue_acc); [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:34:12,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf74a186-a967-48e2-8df9-0e3983fa95a1/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...