./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX --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 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:40:16,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:40:16,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:40:16,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:40:16,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:40:16,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:40:16,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:40:16,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:40:16,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:40:16,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:40:16,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:40:16,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:40:16,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:40:16,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:40:16,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:40:16,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:40:16,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:40:16,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:40:16,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:40:16,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:40:16,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:40:16,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:40:16,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:40:16,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:40:16,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:40:16,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:40:16,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:40:16,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:40:16,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:40:16,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:40:16,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:40:16,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:40:16,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:40:16,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:40:16,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:40:16,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:40:16,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:40:16,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:40:16,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:40:16,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:40:16,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:40:16,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:40:16,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:40:16,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:40:16,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:40:16,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:40:16,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:40:16,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:40:16,920 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:40:16,920 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:40:16,920 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:40:16,920 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:40:16,920 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:40:16,921 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:40:16,921 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:40:16,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:40:16,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:40:16,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:40:16,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:40:16,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:40:16,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:40:16,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:40:16,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:40:16,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:40:16,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:40:16,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:40:16,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:40:16,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:40:16,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:40:16,927 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:40:16,927 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_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a [2021-11-09 10:40:17,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:40:17,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:40:17,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:40:17,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:40:17,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:40:17,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2021-11-09 10:40:17,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/data/d38e4442b/59dfdf499b444040befbedfa2f3b9804/FLAGff41d6ab2 [2021-11-09 10:40:17,919 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:40:17,920 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2021-11-09 10:40:17,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/data/d38e4442b/59dfdf499b444040befbedfa2f3b9804/FLAGff41d6ab2 [2021-11-09 10:40:18,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/data/d38e4442b/59dfdf499b444040befbedfa2f3b9804 [2021-11-09 10:40:18,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:40:18,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:40:18,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:18,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:40:18,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:40:18,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c5068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18, skipping insertion in model container [2021-11-09 10:40:18,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:40:18,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:18,590 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_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2021-11-09 10:40:18,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:18,601 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:40:18,672 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_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2021-11-09 10:40:18,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:18,691 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:40:18,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18 WrapperNode [2021-11-09 10:40:18,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:18,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:18,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:40:18,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:40:18,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:18,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:40:18,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:40:18,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:40:18,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:40:18,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:40:18,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:40:18,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:40:18,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (1/1) ... [2021-11-09 10:40:18,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:18,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:18,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:18,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:40:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:40:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:40:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:40:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:40:20,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:40:20,072 INFO L299 CfgBuilder]: Removed 350 assume(true) statements. [2021-11-09 10:40:20,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20 BoogieIcfgContainer [2021-11-09 10:40:20,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:40:20,077 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:40:20,077 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:40:20,080 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:40:20,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:20,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:40:18" (1/3) ... [2021-11-09 10:40:20,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc5cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:40:20, skipping insertion in model container [2021-11-09 10:40:20,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:20,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:18" (2/3) ... [2021-11-09 10:40:20,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc5cb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:40:20, skipping insertion in model container [2021-11-09 10:40:20,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:20,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20" (3/3) ... [2021-11-09 10:40:20,087 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2021-11-09 10:40:20,141 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:40:20,141 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:40:20,141 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:40:20,141 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:40:20,141 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:40:20,142 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:40:20,142 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:40:20,142 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:40:20,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 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) [2021-11-09 10:40:20,217 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-11-09 10:40:20,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:20,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:20,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:40:20,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:20,226 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:40:20,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 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) [2021-11-09 10:40:20,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-11-09 10:40:20,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:20,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:20,239 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:40:20,239 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:20,244 INFO L791 eck$LassoCheckResult]: Stem: 213#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 138#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 66#L405true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 97#L413true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 112#L866true assume 0 != main_~tmp~10; 59#L843true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 85#L993-1true [2021-11-09 10:40:20,244 INFO L793 eck$LassoCheckResult]: Loop: 85#L993-1true assume !false; 16#L324true assume test_~splverifierCounter~0 < 4; 168#L325true test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 160#L333true assume !(0 != test_~tmp~6); 201#L333-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 187#L343true assume !(0 != test_~tmp___0~2); 38#L343-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 77#L353true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 197#L361-2true assume !(0 != ~pumpRunning~0); 15#L69true assume !(0 != ~systemActive~0); 55#L76true havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 6#L924-5true __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 150#L993true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 85#L993-1true [2021-11-09 10:40:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 10:40:20,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:20,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335984448] [2021-11-09 10:40:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:20,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:20,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:20,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:20,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:20,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1674172477, now seen corresponding path program 1 times [2021-11-09 10:40:20,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:20,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624048395] [2021-11-09 10:40:20,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:20,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:20,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:40:20,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624048395] [2021-11-09 10:40:20,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624048395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:20,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:20,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:40:20,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520924156] [2021-11-09 10:40:20,869 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 10:40:20,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:40:20,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:40:20,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:40:20,899 INFO L87 Difference]: Start difference. First operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 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) [2021-11-09 10:40:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:20,970 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2021-11-09 10:40:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:40:20,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 323 transitions. [2021-11-09 10:40:20,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2021-11-09 10:40:21,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2021-11-09 10:40:21,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2021-11-09 10:40:21,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2021-11-09 10:40:21,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2021-11-09 10:40:21,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:40:21,008 INFO L681 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-11-09 10:40:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2021-11-09 10:40:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-09 10:40:21,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.4651162790697674) internal successors, (315), 214 states have internal predecessors, (315), 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) [2021-11-09 10:40:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2021-11-09 10:40:21,062 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-11-09 10:40:21,062 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-11-09 10:40:21,063 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:40:21,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2021-11-09 10:40:21,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2021-11-09 10:40:21,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:21,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:21,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:40:21,069 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:40:21,070 INFO L791 eck$LassoCheckResult]: Stem: 667#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 634#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 561#L405 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 562#L413 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 605#L866 assume 0 != main_~tmp~10; 551#L843 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 552#L993-1 [2021-11-09 10:40:21,071 INFO L793 eck$LassoCheckResult]: Loop: 552#L993-1 assume !false; 478#L324 assume test_~splverifierCounter~0 < 4; 479#L325 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 647#L333 assume !(0 != test_~tmp~6); 636#L333-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 658#L343 assume !(0 != test_~tmp___0~2); 520#L343-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 521#L353 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 579#L361-2 assume !(0 != ~pumpRunning~0); 477#L69 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 471#L153 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 472#L127-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 653#L101-3 assume !(0 == ~pumpRunning~0); 466#L76 havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 460#L924-5 __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 461#L993 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 552#L993-1 [2021-11-09 10:40:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 10:40:21,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:21,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080215747] [2021-11-09 10:40:21,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,162 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:21,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1243674303, now seen corresponding path program 1 times [2021-11-09 10:40:21,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:21,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269676686] [2021-11-09 10:40:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:21,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:40:21,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269676686] [2021-11-09 10:40:21,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269676686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:21,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:21,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 10:40:21,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626438846] [2021-11-09 10:40:21,325 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 10:40:21,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:40:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 10:40:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 10:40:21,327 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-09 10:40:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:21,467 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2021-11-09 10:40:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 10:40:21,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2021-11-09 10:40:21,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-11-09 10:40:21,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2021-11-09 10:40:21,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2021-11-09 10:40:21,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2021-11-09 10:40:21,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2021-11-09 10:40:21,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:40:21,483 INFO L681 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-11-09 10:40:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2021-11-09 10:40:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-09 10:40:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3791469194312795) internal successors, (291), 210 states have internal predecessors, (291), 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) [2021-11-09 10:40:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2021-11-09 10:40:21,502 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-11-09 10:40:21,502 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-11-09 10:40:21,502 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 10:40:21,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2021-11-09 10:40:21,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-11-09 10:40:21,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:21,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:21,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 10:40:21,508 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, 1] [2021-11-09 10:40:21,508 INFO L791 eck$LassoCheckResult]: Stem: 1056#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 970#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~10;havoc main_~retValue_acc~9;havoc main_~tmp~10; 971#L405 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1030#L413 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 908#L866 assume 0 != main_~tmp~10; 909#L843 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 992#L993-1 [2021-11-09 10:40:21,509 INFO L793 eck$LassoCheckResult]: Loop: 992#L993-1 assume !false; 918#L324 assume test_~splverifierCounter~0 < 4; 919#L325 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 1006#L333 assume !(0 != test_~tmp~6); 976#L333-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 1043#L343 assume !(0 != test_~tmp___0~2); 980#L343-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 981#L353 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1020#L361-2 assume !(0 != ~pumpRunning~0); 917#L69 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 904#L153 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 905#L127-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1018#L101-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 962#L964-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 963#L969-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1053#L272-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 989#L272-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 951#L278-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 952#L105-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 901#L76 havoc __utac_acc__Specification1_spec__1_#t~ret81, __utac_acc__Specification1_spec__1_#t~ret82, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 896#L924-5 __utac_acc__Specification1_spec__1_#t~ret81 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret81;havoc __utac_acc__Specification1_spec__1_#t~ret81; 897#L993 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 992#L993-1 [2021-11-09 10:40:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,510 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-09 10:40:21,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:21,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882840033] [2021-11-09 10:40:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,562 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,607 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1113090803, now seen corresponding path program 1 times [2021-11-09 10:40:21,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:21,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540228487] [2021-11-09 10:40:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,614 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 140214323, now seen corresponding path program 1 times [2021-11-09 10:40:21,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:21,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085870731] [2021-11-09 10:40:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:21,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,682 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:21,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:41:20,578 WARN L207 SmtUtils]: Spent 58.52 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 10:42:22,663 WARN L207 SmtUtils]: Spent 29.09 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 10:42:22,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:42:22 BoogieIcfgContainer [2021-11-09 10:42:22,802 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:42:22,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:42:22,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:42:22,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:42:22,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:20" (3/4) ... [2021-11-09 10:42:22,806 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 10:42:22,924 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:42:22,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:42:22,926 INFO L168 Benchmark]: Toolchain (without parser) took 124712.24 ms. Allocated memory was 96.5 MB in the beginning and 174.1 MB in the end (delta: 77.6 MB). Free memory was 55.1 MB in the beginning and 50.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,926 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:42:22,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.16 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 63.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.96 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 57.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,928 INFO L168 Benchmark]: Boogie Preprocessor took 112.94 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 53.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,941 INFO L168 Benchmark]: RCFGBuilder took 1158.49 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 53.7 MB in the beginning and 68.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,942 INFO L168 Benchmark]: BuchiAutomizer took 122725.80 ms. Allocated memory was 125.8 MB in the beginning and 174.1 MB in the end (delta: 48.2 MB). Free memory was 68.7 MB in the beginning and 52.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,943 INFO L168 Benchmark]: Witness Printer took 121.71 ms. Allocated memory is still 174.1 MB. Free memory was 52.6 MB in the beginning and 50.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:42:22,945 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 is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.16 ms. Allocated memory is still 96.5 MB. Free memory was 54.9 MB in the beginning and 63.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.96 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 57.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.94 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 53.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1158.49 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 53.7 MB in the beginning and 68.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122725.80 ms. Allocated memory was 125.8 MB in the beginning and 174.1 MB in the end (delta: 48.2 MB). Free memory was 68.7 MB in the beginning and 52.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. * Witness Printer took 121.71 ms. Allocated memory is still 174.1 MB. Free memory was 52.6 MB in the beginning and 50.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 542 SDtfs, 489 SDslu, 75 SDs, 0 SdLazy, 45 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 323]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13651} State at position 1 is {NULL=0, NULL=0, NULL=13671, NULL=0, NULL=13651, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@576c027f=0, NULL=13674, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b7236bf=0, NULL=13662, retValue_acc=0, tmp=0, NULL=0, tmp___1=0, NULL=13676, NULL=0, cleanupTimeShifts=4, retValue_acc=0, tmp=1, NULL=13658, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8a7b56e=0, NULL=0, NULL=0, waterLevel=1, NULL=13668, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c324bbc=0, \result=1, head=0, pumpRunning=0, NULL=13672, NULL=13680, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4488937a=66, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45e2a61e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f7a90d3=0, NULL=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@494d58c2=0, NULL=0, tmp___0=0, NULL=13669, tmp=0, head=0, tmp=0, NULL=13664, NULL=13673, NULL=13659, NULL=13657, NULL=0, NULL=13670, retValue_acc=0, NULL=13681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ffa0854=0, NULL=13655, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78668161=0, NULL=0, tmp___0=0, NULL=0, NULL=13663, NULL=0, NULL=0, tmp=0, NULL=13661, tmp=0, tmp___0=0, NULL=13654, NULL=0, NULL=0, NULL=0, systemActive=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=13653, \result=0, NULL=13675, NULL=0, NULL=13678, NULL=0, NULL=0, retValue_acc=1, NULL=13679, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ea2e86c=0, NULL=13652, retValue_acc=1, tmp___2=66, splverifierCounter=0, NULL=0, \result=0, NULL=13660, NULL=13656, NULL=0, NULL=13667, NULL=13677} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L587] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L784] int cleanupTimeShifts = 4; [L881] int waterLevel = 1; [L882] int methaneLevelCritical = 0; [L857] int retValue_acc ; [L858] int tmp ; [L409] int retValue_acc ; [L412] retValue_acc = 1 [L413] return (retValue_acc); [L864] tmp = valid_product() [L866] COND TRUE \read(tmp) [L314] int splverifierCounter ; [L315] int tmp ; [L316] int tmp___0 ; [L317] int tmp___1 ; [L318] int tmp___2 ; [L321] splverifierCounter = 0 Loop: [L323] COND TRUE 1 [L325] COND TRUE splverifierCounter < 4 [L331] tmp = __VERIFIER_nondet_int() [L333] COND FALSE !(\read(tmp)) [L341] tmp___0 = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp___0)) [L351] tmp___2 = __VERIFIER_nondet_int() [L353] COND TRUE \read(tmp___2) [L305] systemActive = 1 [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L961] int retValue_acc ; [L964] COND TRUE waterLevel < 2 [L965] retValue_acc = 1 [L966] return (retValue_acc); [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L986] int tmp ; [L987] int tmp___0 ; [L920] int retValue_acc ; [L923] retValue_acc = methaneLevelCritical [L924] return (retValue_acc); [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 10:42:23,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5a38f3e-535a-4471-a7f1-2fe6f89d8033/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)