./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8 --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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:24:21,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:24:21,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:24:21,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:24:21,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:24:21,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:24:21,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:24:21,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:24:21,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:24:21,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:24:21,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:24:21,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:24:21,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:24:21,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:24:21,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:24:21,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:24:21,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:24:21,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:24:21,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:24:21,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:24:21,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:24:21,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:24:21,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:24:21,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:24:21,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:24:21,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:24:21,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:24:21,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:24:21,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:24:21,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:24:21,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:24:21,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:24:21,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:24:21,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:24:21,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:24:21,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:24:21,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:24:21,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:24:21,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:24:21,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:24:21,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:24:21,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 21:24:21,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:24:21,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:24:21,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:24:21,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:24:21,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:24:21,272 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:24:21,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:24:21,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:24:21,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:24:21,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:24:21,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:24:21,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:24:21,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:24:21,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:24:21,275 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:24:21,275 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_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2022-12-13 21:24:21,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:24:21,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:24:21,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:24:21,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:24:21,463 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:24:21,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-12-13 21:24:23,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:24:24,141 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:24:24,142 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-12-13 21:24:24,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/data/2284b981f/6840febb84634d13b5b5230652e68531/FLAG9f3bf3141 [2022-12-13 21:24:24,527 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/data/2284b981f/6840febb84634d13b5b5230652e68531 [2022-12-13 21:24:24,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:24:24,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:24:24,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:24:24,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:24:24,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:24:24,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304ef167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24, skipping insertion in model container [2022-12-13 21:24:24,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:24:24,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:24:24,685 WARN L237 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_5af11051-67c6-4f2f-88d4-e48679d491f9/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2022-12-13 21:24:24,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:24:24,741 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:24:24,755 WARN L237 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_5af11051-67c6-4f2f-88d4-e48679d491f9/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2022-12-13 21:24:24,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:24:24,800 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:24:24,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24 WrapperNode [2022-12-13 21:24:24,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:24:24,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:24:24,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:24:24,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:24:24,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,839 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 54, calls inlined = 83, statements flattened = 568 [2022-12-13 21:24:24,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:24:24,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:24:24,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:24:24,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:24:24,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,860 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:24:24,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:24:24,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:24:24,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:24:24,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (1/1) ... [2022-12-13 21:24:24,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:24:24,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:24:24,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:24:24,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:24:24,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:24:24,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:24:24,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:24:24,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:24:24,992 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:24:24,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:24:25,289 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:24:25,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:24:25,295 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:24:25,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:24:25 BoogieIcfgContainer [2022-12-13 21:24:25,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:24:25,298 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:24:25,298 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:24:25,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:24:25,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:24:25,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:24:24" (1/3) ... [2022-12-13 21:24:25,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@293a9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:24:25, skipping insertion in model container [2022-12-13 21:24:25,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:24:25,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:24:24" (2/3) ... [2022-12-13 21:24:25,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@293a9ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:24:25, skipping insertion in model container [2022-12-13 21:24:25,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:24:25,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:24:25" (3/3) ... [2022-12-13 21:24:25,304 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2022-12-13 21:24:25,350 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:24:25,351 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:24:25,351 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:24:25,351 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:24:25,351 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:24:25,351 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:24:25,351 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:24:25,351 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:24:25,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 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) [2022-12-13 21:24:25,377 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-12-13 21:24:25,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:24:25,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:24:25,383 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,383 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,383 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:24:25,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 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) [2022-12-13 21:24:25,390 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 109 [2022-12-13 21:24:25,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:24:25,391 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:24:25,391 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,392 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,396 INFO L748 eck$LassoCheckResult]: Stem: 34#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 26#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 132#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 115#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 63#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 85#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 17#L548-2true [2022-12-13 21:24:25,397 INFO L750 eck$LassoCheckResult]: Loop: 17#L548-2true assume !false; 53#L549true assume test_~splverifierCounter~0#1 < 4; 166#L550true test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 161#L558true assume !(0 != test_~tmp~5#1); 153#L558-2true test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 167#L568true assume !(0 != test_~tmp___0~2#1); 36#L568-2true test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 51#L578true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 61#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 163#L586-2true assume { :begin_inline_timeShift } true; 35#L344true assume !(0 != ~pumpRunning~0); 95#L344-2true assume !(0 != ~systemActive~0); 30#L351-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 83#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 108#L202true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 57#L208-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 72#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 17#L548-2true [2022-12-13 21:24:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 21:24:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310825722] [2022-12-13 21:24:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2145907859, now seen corresponding path program 1 times [2022-12-13 21:24:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933401383] [2022-12-13 21:24:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:25,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:25,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933401383] [2022-12-13 21:24:25,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933401383] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:25,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:25,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:24:25,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112298255] [2022-12-13 21:24:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:25,599 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:24:25,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:24:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:24:25,630 INFO L87 Difference]: Start difference. First operand has 167 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 166 states have internal predecessors, (228), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-12-13 21:24:25,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:25,684 INFO L93 Difference]: Finished difference Result 319 states and 423 transitions. [2022-12-13 21:24:25,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 423 transitions. [2022-12-13 21:24:25,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 208 [2022-12-13 21:24:25,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 299 states and 402 transitions. [2022-12-13 21:24:25,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2022-12-13 21:24:25,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2022-12-13 21:24:25,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 299 states and 402 transitions. [2022-12-13 21:24:25,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:24:25,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 299 states and 402 transitions. [2022-12-13 21:24:25,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states and 402 transitions. [2022-12-13 21:24:25,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 296. [2022-12-13 21:24:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 296 states have (on average 1.3445945945945945) internal successors, (398), 295 states have internal predecessors, (398), 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) [2022-12-13 21:24:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2022-12-13 21:24:25,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 296 states and 398 transitions. [2022-12-13 21:24:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:24:25,749 INFO L428 stractBuchiCegarLoop]: Abstraction has 296 states and 398 transitions. [2022-12-13 21:24:25,749 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:24:25,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 296 states and 398 transitions. [2022-12-13 21:24:25,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 205 [2022-12-13 21:24:25,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:24:25,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:24:25,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,752 INFO L149 hiAutomatonCegarLoop]: 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] [2022-12-13 21:24:25,753 INFO L748 eck$LassoCheckResult]: Stem: 550#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 538#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 539#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 641#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 587#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 588#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 615#L548-2 [2022-12-13 21:24:25,753 INFO L750 eck$LassoCheckResult]: Loop: 615#L548-2 assume !false; 687#L549 assume test_~splverifierCounter~0#1 < 4; 688#L550 test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 780#L558 assume !(0 != test_~tmp~5#1); 778#L558-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 776#L568 assume !(0 != test_~tmp___0~2#1); 774#L568-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 773#L578 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 772#L586 assume !(0 != test_~tmp___1~1#1); 585#L586-2 assume { :begin_inline_timeShift } true; 770#L344 assume !(0 != ~pumpRunning~0); 768#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 766#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 764#L376-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 756#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 753#L376-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 751#L402-1 assume { :end_inline_processEnvironment } true; 750#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 613#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 614#L202 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 690#L208-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 689#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 615#L548-2 [2022-12-13 21:24:25,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 21:24:25,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256489961] [2022-12-13 21:24:25,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,766 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1941547735, now seen corresponding path program 1 times [2022-12-13 21:24:25,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647779824] [2022-12-13 21:24:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:25,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:25,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647779824] [2022-12-13 21:24:25,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647779824] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:25,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:25,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:24:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362297729] [2022-12-13 21:24:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:25,810 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:24:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:24:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:24:25,812 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:24:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:25,875 INFO L93 Difference]: Finished difference Result 420 states and 545 transitions. [2022-12-13 21:24:25,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 420 states and 545 transitions. [2022-12-13 21:24:25,879 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2022-12-13 21:24:25,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 420 states to 420 states and 545 transitions. [2022-12-13 21:24:25,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 420 [2022-12-13 21:24:25,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 420 [2022-12-13 21:24:25,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 420 states and 545 transitions. [2022-12-13 21:24:25,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:24:25,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 420 states and 545 transitions. [2022-12-13 21:24:25,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states and 545 transitions. [2022-12-13 21:24:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2022-12-13 21:24:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 420 states have (on average 1.2976190476190477) internal successors, (545), 419 states have internal predecessors, (545), 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) [2022-12-13 21:24:25,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 545 transitions. [2022-12-13 21:24:25,900 INFO L240 hiAutomatonCegarLoop]: Abstraction has 420 states and 545 transitions. [2022-12-13 21:24:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:24:25,901 INFO L428 stractBuchiCegarLoop]: Abstraction has 420 states and 545 transitions. [2022-12-13 21:24:25,902 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:24:25,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 420 states and 545 transitions. [2022-12-13 21:24:25,904 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2022-12-13 21:24:25,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:24:25,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:24:25,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,904 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:25,905 INFO L748 eck$LassoCheckResult]: Stem: 1274#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1259#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1260#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 1368#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1312#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1313#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1242#L548-2 [2022-12-13 21:24:25,905 INFO L750 eck$LassoCheckResult]: Loop: 1242#L548-2 assume !false; 1243#L549 assume test_~splverifierCounter~0#1 < 4; 1409#L550 test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 1405#L558 assume !(0 != test_~tmp~5#1); 1292#L558-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1403#L568 assume !(0 != test_~tmp___0~2#1); 1276#L568-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1277#L578 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1296#L586 assume !(0 != test_~tmp___1~1#1); 1309#L586-2 assume { :begin_inline_timeShift } true; 1406#L344 assume !(0 != ~pumpRunning~0); 1349#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1350#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1227#L376-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1228#L322-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1408#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1477#L504-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1253#L504-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1254#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 1386#L380-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1472#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1537#L376-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1535#L402-1 assume { :end_inline_processEnvironment } true; 1265#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1266#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 1335#L202 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1#1; 1303#L208-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1304#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1242#L548-2 [2022-12-13 21:24:25,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 21:24:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431409008] [2022-12-13 21:24:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:25,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1563476977, now seen corresponding path program 1 times [2022-12-13 21:24:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042626230] [2022-12-13 21:24:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:25,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:25,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:25,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1480508371, now seen corresponding path program 1 times [2022-12-13 21:24:25,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:25,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922614388] [2022-12-13 21:24:25,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:25,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:24:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:24:26,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:24:26,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922614388] [2022-12-13 21:24:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922614388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:24:26,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:24:26,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:24:26,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422013605] [2022-12-13 21:24:26,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:24:26,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:24:26,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:24:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:24:26,239 INFO L87 Difference]: Start difference. First operand 420 states and 545 transitions. cyclomatic complexity: 128 Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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) [2022-12-13 21:24:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:24:26,342 INFO L93 Difference]: Finished difference Result 1457 states and 1878 transitions. [2022-12-13 21:24:26,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1457 states and 1878 transitions. [2022-12-13 21:24:26,348 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1104 [2022-12-13 21:24:26,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1457 states to 1457 states and 1878 transitions. [2022-12-13 21:24:26,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1457 [2022-12-13 21:24:26,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1457 [2022-12-13 21:24:26,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1457 states and 1878 transitions. [2022-12-13 21:24:26,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:24:26,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1457 states and 1878 transitions. [2022-12-13 21:24:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states and 1878 transitions. [2022-12-13 21:24:26,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 833. [2022-12-13 21:24:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 833 states have (on average 1.2809123649459784) internal successors, (1067), 832 states have internal predecessors, (1067), 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) [2022-12-13 21:24:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1067 transitions. [2022-12-13 21:24:26,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 833 states and 1067 transitions. [2022-12-13 21:24:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:24:26,370 INFO L428 stractBuchiCegarLoop]: Abstraction has 833 states and 1067 transitions. [2022-12-13 21:24:26,370 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:24:26,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 833 states and 1067 transitions. [2022-12-13 21:24:26,373 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 598 [2022-12-13 21:24:26,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:24:26,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:24:26,373 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:26,373 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:24:26,373 INFO L748 eck$LassoCheckResult]: Stem: 3168#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3169#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 3154#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3155#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 3263#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 3209#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 3210#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet26#1, test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~2#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3134#L548-2 [2022-12-13 21:24:26,374 INFO L750 eck$LassoCheckResult]: Loop: 3134#L548-2 assume !false; 3135#L549 assume test_~splverifierCounter~0#1 < 4; 3195#L550 test_~tmp~5#1 := test_#t~nondet26#1;havoc test_#t~nondet26#1; 3302#L558 assume !(0 != test_~tmp~5#1); 3187#L558-2 test_~tmp___0~2#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3298#L568 assume !(0 != test_~tmp___0~2#1); 3170#L568-2 test_~tmp___2~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3171#L578 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~1#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3942#L586 assume !(0 != test_~tmp___1~1#1); 3206#L586-2 assume { :begin_inline_timeShift } true; 3166#L344 assume !(0 != ~pumpRunning~0); 3167#L344-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 3246#L402 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 3122#L376-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 3123#L322-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 3182#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 3183#L504-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3148#L504-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 3149#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret14#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret14#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret14#1; 3131#L380-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3133#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 3175#L376-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3233#L402-1 assume { :end_inline_processEnvironment } true; 3160#L351-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret6#1, __utac_acc__Specification3_spec__1_#t~ret7#1, __utac_acc__Specification3_spec__1_#t~ret8#1, __utac_acc__Specification3_spec__1_~tmp~1#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~1#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 3161#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification3_spec__1_#t~ret6#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1#1 := __utac_acc__Specification3_spec__1_#t~ret6#1;havoc __utac_acc__Specification3_spec__1_#t~ret6#1; 3234#L202 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 3217#getWaterLevel_returnLabel#1 __utac_acc__Specification3_spec__1_#t~ret7#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret7#1;havoc __utac_acc__Specification3_spec__1_#t~ret7#1; 3218#L208 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 3199#L208-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3200#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 3134#L548-2 [2022-12-13 21:24:26,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:26,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-12-13 21:24:26,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:26,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225966681] [2022-12-13 21:24:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:26,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:26,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:26,384 INFO L85 PathProgramCache]: Analyzing trace with hash 738432386, now seen corresponding path program 1 times [2022-12-13 21:24:26,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:26,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301316186] [2022-12-13 21:24:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:26,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,394 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:24:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1135623238, now seen corresponding path program 1 times [2022-12-13 21:24:26,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:24:26,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481766304] [2022-12-13 21:24:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:24:26,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:24:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:26,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:24:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:27,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:24:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:24:27,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:24:27 BoogieIcfgContainer [2022-12-13 21:24:27,272 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:24:27,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:24:27,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:24:27,272 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:24:27,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:24:25" (3/4) ... [2022-12-13 21:24:27,274 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 21:24:27,309 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:24:27,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:24:27,310 INFO L158 Benchmark]: Toolchain (without parser) took 2779.94ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 73.9MB in the beginning and 62.7MB in the end (delta: 11.2MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,310 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:24:27,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.07ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 55.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.81ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,311 INFO L158 Benchmark]: Boogie Preprocessor took 24.28ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,311 INFO L158 Benchmark]: RCFGBuilder took 432.80ms. Allocated memory is still 117.4MB. Free memory was 49.6MB in the beginning and 70.9MB in the end (delta: -21.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,311 INFO L158 Benchmark]: BuchiAutomizer took 1974.04ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 70.9MB in the beginning and 65.9MB in the end (delta: 5.0MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,311 INFO L158 Benchmark]: Witness Printer took 37.42ms. Allocated memory is still 146.8MB. Free memory was 65.9MB in the beginning and 62.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:24:27,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.07ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 55.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.81ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 51.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.28ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.80ms. Allocated memory is still 117.4MB. Free memory was 49.6MB in the beginning and 70.9MB in the end (delta: -21.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1974.04ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 70.9MB in the beginning and 65.9MB in the end (delta: 5.0MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Witness Printer took 37.42ms. Allocated memory is still 146.8MB. Free memory was 65.9MB in the beginning and 62.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 833 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 627 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1153 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1153 mSDsluCounter, 2017 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1272 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 745 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 548]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L548] COND TRUE 1 [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___1)) [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L548] COND TRUE 1 [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp)) [L566] tmp___0 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___0)) [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___1)) [L595] CALL timeShift() [L344] COND FALSE !(\read(pumpRunning)) [L351] COND TRUE \read(systemActive) [L353] CALL processEnvironment() [L399] int tmp ; [L402] COND FALSE !(\read(pumpRunning)) [L417] CALL processEnvironment__wrappee__highWaterSensor() [L373] int tmp ; [L376] COND TRUE ! pumpRunning [L378] CALL, EXPR isHighWaterLevel() [L496] int retValue_acc ; [L497] int tmp ; [L498] int tmp___0 ; [L502] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L502] RET, EXPR isHighWaterSensorDry() [L502] tmp = isHighWaterSensorDry() [L504] COND TRUE \read(tmp) [L505] tmp___0 = 0 [L509] retValue_acc = tmp___0 [L510] return (retValue_acc); [L378] RET, EXPR isHighWaterLevel() [L378] tmp = isHighWaterLevel() [L380] COND FALSE !(\read(tmp)) [L386] FCALL processEnvironment__wrappee__base() [L417] RET processEnvironment__wrappee__highWaterSensor() [L353] RET processEnvironment() [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L200] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] RET, EXPR isMethaneLevelCritical() [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND FALSE !(tmp___0 == 2) [L359] RET __utac_acc__Specification3_spec__1() [L595] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:24:27,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af11051-67c6-4f2f-88d4-e48679d491f9/bin/uautomizer-uyxdKDjOR8/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)