./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.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_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/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_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/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_56966c53-969d-443a-a07b-464e0e854d90/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 01b43f7e7ecd5c44c6b49183e9415dee9518d36285d69624307f5a03549da1bb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:44:36,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:44:36,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:44:36,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:44:36,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:44:36,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:44:36,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:44:36,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:44:36,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:44:36,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:44:36,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:44:36,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:44:36,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:44:36,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:44:36,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:44:36,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:44:36,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:44:36,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:44:36,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:44:36,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:44:36,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:44:36,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:44:36,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:44:36,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:44:36,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:44:36,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:44:36,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:44:36,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:44:36,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:44:36,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:44:36,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:44:36,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:44:36,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:44:36,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:44:36,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:44:36,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:44:36,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:44:36,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:44:36,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:44:36,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:44:36,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:44:36,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:44:36,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:44:36,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:44:36,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:44:36,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:44:36,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:44:36,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:44:36,929 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:44:36,929 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:44:36,929 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:44:36,929 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:44:36,930 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:44:36,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:44:36,931 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:44:36,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:44:36,932 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:44:36,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:44:36,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:44:36,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:44:36,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:44:36,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:44:36,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:44:36,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:44:36,934 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:44:36,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:44:36,934 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:44:36,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:44:36,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:44:36,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:44:36,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:44:36,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:44:36,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:44:36,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:44:36,939 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:44:36,939 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_56966c53-969d-443a-a07b-464e0e854d90/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b43f7e7ecd5c44c6b49183e9415dee9518d36285d69624307f5a03549da1bb [2021-10-21 19:44:37,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:44:37,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:44:37,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:44:37,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:44:37,263 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:44:37,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-21 19:44:37,375 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/data/8eab309b2/eae94d03945a4748ace4f3acd308a750/FLAGd8bddae93 [2021-10-21 19:44:37,863 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:44:37,864 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-21 19:44:37,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/data/8eab309b2/eae94d03945a4748ace4f3acd308a750/FLAGd8bddae93 [2021-10-21 19:44:38,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/data/8eab309b2/eae94d03945a4748ace4f3acd308a750 [2021-10-21 19:44:38,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:44:38,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:44:38,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:38,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:44:38,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:44:38,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5c4169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38, skipping insertion in model container [2021-10-21 19:44:38,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:44:38,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:44:38,505 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_56966c53-969d-443a-a07b-464e0e854d90/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6381,6394] [2021-10-21 19:44:38,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:38,621 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:44:38,674 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_56966c53-969d-443a-a07b-464e0e854d90/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6381,6394] [2021-10-21 19:44:38,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:38,745 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:44:38,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38 WrapperNode [2021-10-21 19:44:38,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:38,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:38,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:44:38,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:44:38,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:38,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:44:38,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:44:38,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:44:38,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:44:38,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:44:38,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:44:38,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:44:38,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (1/1) ... [2021-10-21 19:44:38,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:44:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:44:38,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:44:38,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:44:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:44:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:44:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:44:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:44:39,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:44:39,752 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-21 19:44:39,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:39 BoogieIcfgContainer [2021-10-21 19:44:39,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:44:39,755 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:44:39,755 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:44:39,758 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:44:39,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:44:39,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:44:38" (1/3) ... [2021-10-21 19:44:39,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@135f3684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:44:39, skipping insertion in model container [2021-10-21 19:44:39,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:44:39,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:38" (2/3) ... [2021-10-21 19:44:39,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@135f3684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:44:39, skipping insertion in model container [2021-10-21 19:44:39,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:44:39,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:39" (3/3) ... [2021-10-21 19:44:39,763 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2021-10-21 19:44:39,815 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:44:39,815 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:44:39,815 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:44:39,815 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:44:39,815 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:44:39,815 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:44:39,816 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:44:39,816 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:44:39,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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 19:44:39,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-21 19:44:39,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:44:39,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:44:39,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:44:39,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:39,879 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:44:39,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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 19:44:39,887 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-21 19:44:39,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:44:39,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:44:39,888 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:44:39,888 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:39,893 INFO L791 eck$LassoCheckResult]: Stem: 67#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 52#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 26#L933true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 44#L941true main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 53#L531true assume 0 != main_~tmp~5; 42#L505true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 16#L428-1true [2021-10-21 19:44:39,894 INFO L793 eck$LassoCheckResult]: Loop: 16#L428-1true assume !false; 43#L355true assume test_~splverifierCounter~0 < 4; 28#L356true test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 82#L364true assume !(0 != test_~tmp~3); 49#L364-1true test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 88#L374true assume !(0 != test_~tmp___0~1); 37#L374-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 84#L384true assume 0 != test_~tmp___2~0; 38#L390-1true assume !(0 != ~pumpRunning~0); 22#L165true assume !(0 != ~systemActive~0); 54#L172true havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 15#L100-1true __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 55#L428true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 16#L428-1true [2021-10-21 19:44:39,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:39,900 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:44:39,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:39,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880734125] [2021-10-21 19:44:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:39,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:40,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:40,428 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:40,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:40,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2021-10-21 19:44:40,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:40,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681894507] [2021-10-21 19:44:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:40,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:40,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:40,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:40,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:40,488 INFO L82 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2021-10-21 19:44:40,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:40,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872450885] [2021-10-21 19:44:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:40,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:40,693 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 19:44:40,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:44:40,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872450885] [2021-10-21 19:44:40,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872450885] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:40,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:40,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:44:40,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849198608] [2021-10-21 19:44:40,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:44:40,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:44:40,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:44:40,819 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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 19:44:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:41,037 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2021-10-21 19:44:41,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:44:41,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2021-10-21 19:44:41,053 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2021-10-21 19:44:41,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2021-10-21 19:44:41,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-10-21 19:44:41,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-10-21 19:44:41,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2021-10-21 19:44:41,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:44:41,079 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2021-10-21 19:44:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2021-10-21 19:44:41,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2021-10-21 19:44:41,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.425) internal successors, (171), 119 states have internal predecessors, (171), 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 19:44:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2021-10-21 19:44:41,116 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-21 19:44:41,116 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-21 19:44:41,116 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:44:41,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2021-10-21 19:44:41,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-10-21 19:44:41,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:44:41,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:44:41,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:44:41,121 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:41,121 INFO L791 eck$LassoCheckResult]: Stem: 393#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 385#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 356#L933 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 357#L941 main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 373#L531 assume 0 != main_~tmp~5; 372#L505 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 342#L428-1 [2021-10-21 19:44:41,121 INFO L793 eck$LassoCheckResult]: Loop: 342#L428-1 assume !false; 343#L355 assume test_~splverifierCounter~0 < 4; 359#L356 test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 360#L364 assume !(0 != test_~tmp~3); 380#L364-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 381#L374 assume !(0 != test_~tmp___0~1); 367#L374-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 368#L384 assume 0 != test_~tmp___2~0; 364#L390-1 assume !(0 != ~pumpRunning~0); 330#L165 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 346#L197 assume !(0 == ~pumpRunning~0); 335#L172 havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 340#L100-1 __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 341#L428 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 342#L428-1 [2021-10-21 19:44:41,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:41,122 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:44:41,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:41,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393924496] [2021-10-21 19:44:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:41,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,166 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,228 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:41,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:41,233 INFO L82 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2021-10-21 19:44:41,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:41,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35148779] [2021-10-21 19:44:41,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:41,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:41,254 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 19:44:41,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:44:41,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35148779] [2021-10-21 19:44:41,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35148779] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:41,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:41,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:44:41,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261865023] [2021-10-21 19:44:41,256 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:44:41,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:44:41,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:44:41,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:44:41,258 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 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 19:44:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:41,331 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2021-10-21 19:44:41,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:44:41,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2021-10-21 19:44:41,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-21 19:44:41,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2021-10-21 19:44:41,337 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-10-21 19:44:41,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-10-21 19:44:41,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2021-10-21 19:44:41,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:44:41,339 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-21 19:44:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2021-10-21 19:44:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-10-21 19:44:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 158 states have internal predecessors, (214), 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 19:44:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2021-10-21 19:44:41,351 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-21 19:44:41,351 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-21 19:44:41,351 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:44:41,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2021-10-21 19:44:41,353 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-21 19:44:41,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:44:41,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:44:41,354 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:44:41,354 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 19:44:41,354 INFO L791 eck$LassoCheckResult]: Stem: 690#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 676#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 644#L933 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 645#L941 main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 664#L531 assume 0 != main_~tmp~5; 662#L505 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 663#L428-1 [2021-10-21 19:44:41,354 INFO L793 eck$LassoCheckResult]: Loop: 663#L428-1 assume !false; 746#L355 assume test_~splverifierCounter~0 < 4; 745#L356 test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 701#L364 assume !(0 != test_~tmp~3); 700#L364-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 743#L374 assume !(0 != test_~tmp___0~1); 657#L374-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 658#L384 assume 0 != test_~tmp___2~0; 652#L390-1 assume !(0 != ~pumpRunning~0); 639#L165 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 633#L197 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 634#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 695#L145 isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; 620#L317 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 621#L317-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 616#L323 processEnvironment_#t~ret17 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret17;havoc processEnvironment_#t~ret17; 617#L201 assume !(0 != processEnvironment_~tmp~0); 618#L172 havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 751#L100-1 __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 749#L428 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 663#L428-1 [2021-10-21 19:44:41,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:41,355 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 19:44:41,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:41,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021495638] [2021-10-21 19:44:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:41,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,407 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:41,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:41,491 INFO L82 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2021-10-21 19:44:41,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:41,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413807590] [2021-10-21 19:44:41,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:41,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:41,520 INFO L82 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2021-10-21 19:44:41,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:41,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041045682] [2021-10-21 19:44:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:41,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,577 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:41,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:38,348 WARN L207 SmtUtils]: Spent 56.42 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:46:41,975 WARN L207 SmtUtils]: Spent 31.05 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:46:42,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:46:42 BoogieIcfgContainer [2021-10-21 19:46:42,206 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:46:42,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:46:42,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:46:42,207 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:46:42,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:39" (3/4) ... [2021-10-21 19:46:42,210 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:46:42,275 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:46:42,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:46:42,276 INFO L168 Benchmark]: Toolchain (without parser) took 124057.02 ms. Allocated memory was 96.5 MB in the beginning and 180.4 MB in the end (delta: 83.9 MB). Free memory was 60.1 MB in the beginning and 85.3 MB in the end (delta: -25.2 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,277 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:42,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.76 ms. Allocated memory is still 96.5 MB. Free memory was 59.9 MB in the beginning and 61.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.54 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 58.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,279 INFO L168 Benchmark]: Boogie Preprocessor took 61.26 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 56.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,280 INFO L168 Benchmark]: RCFGBuilder took 860.47 ms. Allocated memory was 96.5 MB in the beginning and 148.9 MB in the end (delta: 52.4 MB). Free memory was 55.8 MB in the beginning and 105.9 MB in the end (delta: -50.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,281 INFO L168 Benchmark]: BuchiAutomizer took 122451.26 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 105.9 MB in the beginning and 88.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 93.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,282 INFO L168 Benchmark]: Witness Printer took 68.27 ms. Allocated memory is still 180.4 MB. Free memory was 88.4 MB in the beginning and 85.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:42,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.76 ms. Allocated memory is still 96.5 MB. Free memory was 59.9 MB in the beginning and 61.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.54 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 58.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.26 ms. Allocated memory is still 96.5 MB. Free memory was 58.3 MB in the beginning and 56.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 860.47 ms. Allocated memory was 96.5 MB in the beginning and 148.9 MB in the end (delta: 52.4 MB). Free memory was 55.8 MB in the beginning and 105.9 MB in the end (delta: -50.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122451.26 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 105.9 MB in the beginning and 88.4 MB in the end (delta: 17.5 MB). Peak memory consumption was 93.8 MB. Max. memory is 16.1 GB. * Witness Printer took 68.27 ms. Allocated memory is still 180.4 MB. Free memory was 88.4 MB in the beginning and 85.3 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 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 121.8s. Construction of modules took 0.1s. 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 35.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 641 SDslu, 563 SDs, 0 SdLazy, 60 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 176.1ms 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: 354]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23670} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=23682, NULL=0, NULL=23670, NULL=23697, retValue_acc=0, NULL=23672, NULL=23692, NULL=23675, methaneLevelCritical=0, NULL=23679, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@577f0193=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cf00754=0, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=23687, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@193393bb=0, NULL=0, tmp___1=0, NULL=23673, NULL=23688, tmp___0=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=23676, NULL=23674, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11bd1bb1=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ee7c5cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@606eb13e=0, NULL=23695, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f70697e=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=23681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@242c2a8b=0, \result=0, NULL=0, NULL=23680, \result=1, head=0, pumpRunning=0, \result=0, NULL=23689, NULL=23671, NULL=23690, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp=1, NULL=23685, \result=1, NULL=23698, NULL=0, NULL=0, NULL=23693, NULL=0, NULL=0, tmp=1, NULL=23678, NULL=0, tmp___2=61, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=23696, NULL=23677, NULL=23691, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@470f3df=0, tmp=0, head=0, NULL=23683, NULL=23694, NULL=0, NULL=23684, NULL=23686} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L157] int pumpRunning = 0; [L158] int systemActive = 1; [L446] int cleanupTimeShifts = 4; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L522] int retValue_acc ; [L523] int tmp ; [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 Loop: [L354] COND TRUE 1 [L356] COND TRUE splverifierCounter < 4 [L362] tmp = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp)) [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___0)) [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L194] int tmp ; [L197] COND TRUE ! pumpRunning [L309] int retValue_acc ; [L310] int tmp ; [L311] int tmp___0 ; [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L315] tmp = isHighWaterSensorDry() [L317] COND TRUE \read(tmp) [L318] tmp___0 = 0 [L322] retValue_acc = tmp___0 [L323] return (retValue_acc); [L199] tmp = isHighWaterLevel() [L201] COND FALSE !(\read(tmp)) [L421] int tmp ; [L422] int tmp___0 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L426] tmp = isMethaneLevelCritical() [L428] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:46:42,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56966c53-969d-443a-a07b-464e0e854d90/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...