./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:07:30,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:30,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:30,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:30,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:30,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:30,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:30,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:30,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:30,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:30,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:30,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:30,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:30,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:30,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:30,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:30,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:30,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:30,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:30,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:30,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:30,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:30,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:30,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:30,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:30,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:30,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:30,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:30,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:30,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:30,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:30,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:30,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:30,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:30,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:30,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:30,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:30,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:30,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:30,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:30,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:30,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:07:31,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:31,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:31,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:31,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:31,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:31,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:31,012 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:31,013 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:07:31,013 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:07:31,013 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:07:31,014 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:07:31,014 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:07:31,015 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:07:31,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:31,015 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:31,015 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:31,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:31,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:31,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:31,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:07:31,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:07:31,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:07:31,017 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:31,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:07:31,018 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:07:31,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:31,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:07:31,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:31,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:31,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:31,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:07:31,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:31,022 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:07:31,022 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_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2021-10-28 23:07:31,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:31,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:31,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:31,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:31,287 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:31,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-10-28 23:07:31,373 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/data/c30374f19/40a2e711b2aa4cee9007701351892ee2/FLAG575616338 [2021-10-28 23:07:31,825 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:31,826 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-10-28 23:07:31,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/data/c30374f19/40a2e711b2aa4cee9007701351892ee2/FLAG575616338 [2021-10-28 23:07:32,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/data/c30374f19/40a2e711b2aa4cee9007701351892ee2 [2021-10-28 23:07:32,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:32,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:07:32,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:32,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:32,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:32,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204c4f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32, skipping insertion in model container [2021-10-28 23:07:32,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:32,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:32,591 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_f2f3359c-44f4-479d-b1f8-e19baae97ad5/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2021-10-28 23:07:32,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:32,611 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:07:32,710 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_f2f3359c-44f4-479d-b1f8-e19baae97ad5/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2021-10-28 23:07:32,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:32,741 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:07:32,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32 WrapperNode [2021-10-28 23:07:32,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:32,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:32,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:07:32,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:07:32,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:32,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:07:32,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:07:32,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:07:32,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:07:32,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:07:32,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:07:32,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:07:32,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (1/1) ... [2021-10-28 23:07:32,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:07:32,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:32,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:07:32,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:07:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:07:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:07:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:07:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:07:33,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:07:33,943 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-10-28 23:07:33,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:33 BoogieIcfgContainer [2021-10-28 23:07:33,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:07:33,948 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:07:33,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:07:33,951 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:07:33,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:33,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:07:32" (1/3) ... [2021-10-28 23:07:33,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a8bd9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:07:33, skipping insertion in model container [2021-10-28 23:07:33,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:33,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:32" (2/3) ... [2021-10-28 23:07:33,955 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a8bd9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:07:33, skipping insertion in model container [2021-10-28 23:07:33,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:33,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:33" (3/3) ... [2021-10-28 23:07:33,956 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2021-10-28 23:07:34,012 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:07:34,012 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:07:34,013 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:07:34,013 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:07:34,013 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:07:34,013 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:07:34,013 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:07:34,013 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:07:34,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5486725663716814) internal successors, (175), 113 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:34,077 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 23:07:34,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:34,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:34,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,087 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:07:34,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5486725663716814) internal successors, (175), 113 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:34,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-28 23:07:34,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:34,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:34,101 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,102 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,105 INFO L791 eck$LassoCheckResult]: Stem: 100#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 30#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 5#L966true 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; 34#L974true main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 48#L930true assume 0 != main_~tmp~8; 83#L903true ~methAndRunningLastTime~0 := 0; 84#L59true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L70-1true [2021-10-28 23:07:34,106 INFO L793 eck$LassoCheckResult]: Loop: 24#L70-1true assume !false; 60#L207true assume test_~splverifierCounter~0 < 4; 86#L208true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 85#L216true assume !(0 != test_~tmp~1); 45#L216-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 9#L226true assume !(0 != test_~tmp___0~1); 32#L226-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 46#L236true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 25#L244-1true assume !(0 != ~pumpRunning~0); 88#L275true assume !(0 != ~systemActive~0); 4#L282true 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 93#L141-1true __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; 54#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 24#L70-1true [2021-10-28 23:07:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:07:34,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:34,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736872765] [2021-10-28 23:07:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:34,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:34,457 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:34,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:34,663 INFO L85 PathProgramCache]: Analyzing trace with hash 13835412, now seen corresponding path program 1 times [2021-10-28 23:07:34,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:34,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242115924] [2021-10-28 23:07:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:34,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:34,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:34,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242115924] [2021-10-28 23:07:34,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242115924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:34,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:34,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:07:34,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481774282] [2021-10-28 23:07:34,752 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:07:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:34,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:34,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:34,781 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5486725663716814) internal successors, (175), 113 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:34,883 INFO L93 Difference]: Finished difference Result 221 states and 325 transitions. [2021-10-28 23:07:34,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:34,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 221 states and 325 transitions. [2021-10-28 23:07:34,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 142 [2021-10-28 23:07:34,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 221 states to 207 states and 310 transitions. [2021-10-28 23:07:34,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 207 [2021-10-28 23:07:34,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 207 [2021-10-28 23:07:34,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 207 states and 310 transitions. [2021-10-28 23:07:34,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:07:34,917 INFO L681 BuchiCegarLoop]: Abstraction has 207 states and 310 transitions. [2021-10-28 23:07:34,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states and 310 transitions. [2021-10-28 23:07:34,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2021-10-28 23:07:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.497560975609756) internal successors, (307), 204 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 307 transitions. [2021-10-28 23:07:34,957 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 307 transitions. [2021-10-28 23:07:34,958 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 307 transitions. [2021-10-28 23:07:34,958 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:07:34,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 307 transitions. [2021-10-28 23:07:34,960 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 140 [2021-10-28 23:07:34,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:34,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:34,961 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,961 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:34,961 INFO L791 eck$LassoCheckResult]: Stem: 461#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 393#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 346#L966 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; 347#L974 main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 398#L930 assume 0 != main_~tmp~8; 411#L903 ~methAndRunningLastTime~0 := 0; 449#L59 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 387#L70-1 [2021-10-28 23:07:34,962 INFO L793 eck$LassoCheckResult]: Loop: 387#L70-1 assume !false; 388#L207 assume test_~splverifierCounter~0 < 4; 425#L208 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 450#L216 assume !(0 != test_~tmp~1); 390#L216-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 355#L226 assume !(0 != test_~tmp___0~1); 357#L226-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 396#L236 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 352#L244-1 assume !(0 != ~pumpRunning~0); 376#L275 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 414#L333 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret23, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 382#L307-1 assume !(0 == ~pumpRunning~0); 344#L282 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 345#L141-1 __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; 417#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 387#L70-1 [2021-10-28 23:07:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:34,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:07:34,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:34,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937302143] [2021-10-28 23:07:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:34,963 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:35,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:35,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2029358293, now seen corresponding path program 1 times [2021-10-28 23:07:35,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:35,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408455559] [2021-10-28 23:07:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:35,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:35,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:35,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408455559] [2021-10-28 23:07:35,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408455559] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:35,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:35,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:07:35,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838358237] [2021-10-28 23:07:35,145 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:07:35,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:35,146 INFO L87 Difference]: Start difference. First operand 205 states and 307 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:35,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:35,269 INFO L93 Difference]: Finished difference Result 294 states and 419 transitions. [2021-10-28 23:07:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:35,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 294 states and 419 transitions. [2021-10-28 23:07:35,275 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2021-10-28 23:07:35,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 294 states to 294 states and 419 transitions. [2021-10-28 23:07:35,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 294 [2021-10-28 23:07:35,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 294 [2021-10-28 23:07:35,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 294 states and 419 transitions. [2021-10-28 23:07:35,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:07:35,282 INFO L681 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2021-10-28 23:07:35,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states and 419 transitions. [2021-10-28 23:07:35,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-10-28 23:07:35,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 294 states have (on average 1.4251700680272108) internal successors, (419), 293 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:07:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 419 transitions. [2021-10-28 23:07:35,325 INFO L704 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2021-10-28 23:07:35,325 INFO L587 BuchiCegarLoop]: Abstraction has 294 states and 419 transitions. [2021-10-28 23:07:35,325 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:07:35,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 419 transitions. [2021-10-28 23:07:35,328 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 207 [2021-10-28 23:07:35,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:35,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:35,329 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:35,329 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:35,330 INFO L791 eck$LassoCheckResult]: Stem: 976#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(75, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 900#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 851#L966 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; 852#L974 main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 904#L930 assume 0 != main_~tmp~8; 920#L903 ~methAndRunningLastTime~0 := 0; 960#L59 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 893#L70-1 [2021-10-28 23:07:35,330 INFO L793 eck$LassoCheckResult]: Loop: 893#L70-1 assume !false; 894#L207 assume test_~splverifierCounter~0 < 4; 934#L208 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 1121#L216 assume !(0 != test_~tmp~1); 1119#L216-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 1118#L226 assume !(0 != test_~tmp___0~1); 1116#L226-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 1115#L236 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 857#L244-1 assume !(0 != ~pumpRunning~0); 895#L275 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 964#L333 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret23, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1099#L307-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret42, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1097#L181-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1095#L186-1 isHighWaterLevel_#t~ret42 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret42;havoc isHighWaterLevel_#t~ret42; 1093#L435-3 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~2 := 0; 1091#L435-5 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1089#L441-1 processEnvironment__wrappee__highWaterSensor_#t~ret23 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret23;havoc processEnvironment__wrappee__highWaterSensor_#t~ret23; 916#L311-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 909#L282 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1109#L141-1 __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; 926#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 893#L70-1 [2021-10-28 23:07:35,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:35,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:07:35,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:35,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982667726] [2021-10-28 23:07:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:35,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,412 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:35,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:35,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1583413303, now seen corresponding path program 1 times [2021-10-28 23:07:35,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:35,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023853731] [2021-10-28 23:07:35,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:35,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,469 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash -938412367, now seen corresponding path program 1 times [2021-10-28 23:07:35,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:35,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843223013] [2021-10-28 23:07:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:35,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,544 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:35,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:33,686 WARN L207 SmtUtils]: Spent 57.76 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:09:31,240 WARN L207 SmtUtils]: Spent 27.90 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:09:31,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:09:31 BoogieIcfgContainer [2021-10-28 23:09:31,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:09:31,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:31,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:31,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:31,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:33" (3/4) ... [2021-10-28 23:09:31,336 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:09:31,386 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:09:31,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:31,387 INFO L168 Benchmark]: Toolchain (without parser) took 119212.04 ms. Allocated memory was 98.6 MB in the beginning and 172.0 MB in the end (delta: 73.4 MB). Free memory was 64.9 MB in the beginning and 97.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,388 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:31,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.12 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.6 MB in the beginning and 85.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.33 ms. Allocated memory is still 119.5 MB. Free memory was 85.4 MB in the beginning and 81.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,389 INFO L168 Benchmark]: Boogie Preprocessor took 71.41 ms. Allocated memory is still 119.5 MB. Free memory was 81.8 MB in the beginning and 79.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,390 INFO L168 Benchmark]: RCFGBuilder took 1026.18 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 91.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,391 INFO L168 Benchmark]: BuchiAutomizer took 117382.89 ms. Allocated memory was 119.5 MB in the beginning and 172.0 MB in the end (delta: 52.4 MB). Free memory was 91.0 MB in the beginning and 100.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 104.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,391 INFO L168 Benchmark]: Witness Printer took 55.26 ms. Allocated memory is still 172.0 MB. Free memory was 100.5 MB in the beginning and 97.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:31,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.12 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.6 MB in the beginning and 85.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.33 ms. Allocated memory is still 119.5 MB. Free memory was 85.4 MB in the beginning and 81.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.41 ms. Allocated memory is still 119.5 MB. Free memory was 81.8 MB in the beginning and 79.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1026.18 ms. Allocated memory is still 119.5 MB. Free memory was 79.1 MB in the beginning and 91.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 117382.89 ms. Allocated memory was 119.5 MB in the beginning and 172.0 MB in the end (delta: 52.4 MB). Free memory was 91.0 MB in the beginning and 100.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 104.9 MB. Max. memory is 16.1 GB. * Witness Printer took 55.26 ms. Allocated memory is still 172.0 MB. Free memory was 100.5 MB in the beginning and 97.4 MB in the end (delta: 3.1 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 3 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 117.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 116.8s. 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 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 322 SDtfs, 276 SDslu, 218 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 206]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=31698} State at position 1 is {NULL=0, NULL=0, NULL=76538, NULL=0, NULL=31698, NULL=76527, NULL=0, NULL=31701, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, NULL=76528, tmp___1=0, NULL=76537, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a811d28=0, NULL=45530, cleanupTimeShifts=4, tmp=0, NULL=76531, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@764c6771=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6524191f=0, NULL=0, waterLevel=1, NULL=0, \result=1, head=0, pumpRunning=0, NULL=76536, retValue_acc=1, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c0daff=0, \result=1, NULL=62877, NULL=0, NULL=0, tmp=1, NULL=76539, NULL=0, NULL=0, NULL=0, tmp___0=0, methAndRunningLastTime=0, NULL=76532, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a27b19a=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@514a89f8=69, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ff3b16=0, NULL=76530, NULL=0, NULL=0, NULL=0, NULL=62878, retValue_acc=0, NULL=0, NULL=0, NULL=76524, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@416ea894=0, retValue_acc=0, NULL=76526, NULL=45529, tmp___0=0, NULL=0, NULL=62876, NULL=0, NULL=0, NULL=31700, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=0, NULL=76534, \result=0, NULL=0, NULL=76542, NULL=76529, \result=0, NULL=62879, NULL=0, NULL=0, NULL=76533, tmp___0=0, NULL=76541, tmp___2=69, splverifierCounter=0, NULL=0, \result=0, NULL=76540, NULL=76535, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@481e6fc3=0, NULL=31699, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8400b=0, NULL=76525} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L98] int waterLevel = 1; [L99] int methaneLevelCritical = 0; [L268] int pumpRunning = 0; [L269] int systemActive = 1; [L638] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int cleanupTimeShifts = 4; [L921] int retValue_acc ; [L922] int tmp ; [L970] int retValue_acc ; [L973] retValue_acc = 1 [L974] return (retValue_acc); [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L58] methAndRunningLastTime = 0 [L197] int splverifierCounter ; [L198] int tmp ; [L199] int tmp___0 ; [L200] int tmp___1 ; [L201] int tmp___2 ; [L204] splverifierCounter = 0 Loop: [L206] COND TRUE 1 [L208] COND TRUE splverifierCounter < 4 [L214] tmp = __VERIFIER_nondet_int() [L216] COND FALSE !(\read(tmp)) [L224] tmp___0 = __VERIFIER_nondet_int() [L226] COND FALSE !(\read(tmp___0)) [L234] tmp___2 = __VERIFIER_nondet_int() [L236] COND TRUE \read(tmp___2) [L464] systemActive = 1 [L275] COND FALSE !(\read(pumpRunning)) [L282] COND TRUE \read(systemActive) [L330] int tmp ; [L333] COND FALSE !(\read(pumpRunning)) [L304] int tmp ; [L307] COND TRUE ! pumpRunning [L427] int retValue_acc ; [L428] int tmp ; [L429] int tmp___0 ; [L178] int retValue_acc ; [L181] COND TRUE waterLevel < 2 [L182] retValue_acc = 1 [L183] return (retValue_acc); [L433] tmp = isHighWaterSensorDry() [L435] COND TRUE \read(tmp) [L436] tmp___0 = 0 [L440] retValue_acc = tmp___0 [L441] return (retValue_acc); [L309] tmp = isHighWaterLevel() [L311] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L137] int retValue_acc ; [L140] retValue_acc = methaneLevelCritical [L141] 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! [2021-10-28 23:09:31,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f3359c-44f4-479d-b1f8-e19baae97ad5/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...