./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a --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 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b --- 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-b5237d8 [2022-11-21 16:06:56,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:06:56,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:06:56,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:06:56,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:06:56,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:06:56,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:06:56,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:06:56,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:06:56,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:06:56,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:06:56,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:06:56,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:06:56,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:06:56,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:06:56,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:06:56,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:06:56,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:06:56,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:06:56,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:06:56,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:06:56,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:06:56,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:06:56,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:06:56,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:06:56,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:06:56,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:06:56,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:06:56,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:06:56,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:06:56,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:06:56,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:06:56,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:06:56,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:06:56,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:06:56,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:06:56,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:06:56,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:06:56,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:06:56,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:06:56,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:06:56,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 16:06:56,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:06:56,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:06:56,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:06:56,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:06:56,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:06:56,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:06:56,228 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:06:56,229 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 16:06:56,229 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 16:06:56,229 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 16:06:56,229 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 16:06:56,229 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 16:06:56,230 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 16:06:56,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:06:56,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:06:56,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:06:56,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:06:56,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:06:56,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:06:56,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 16:06:56,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 16:06:56,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 16:06:56,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:06:56,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:06:56,232 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 16:06:56,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:06:56,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 16:06:56,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:06:56,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:06:56,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:06:56,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:06:56,234 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 16:06:56,235 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_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2022-11-21 16:06:56,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:06:56,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:06:56,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:06:56,544 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:06:56,545 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:06:56,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2022-11-21 16:06:59,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:06:59,984 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:06:59,985 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2022-11-21 16:06:59,996 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/data/55dbe4f6d/a5f3cc5ba73145178bafdd39b6f43b02/FLAG7472e7517 [2022-11-21 16:07:00,011 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/data/55dbe4f6d/a5f3cc5ba73145178bafdd39b6f43b02 [2022-11-21 16:07:00,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:07:00,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:07:00,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:00,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:07:00,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:07:00,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755ba2c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00, skipping insertion in model container [2022-11-21 16:07:00,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:07:00,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:07:00,348 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_d10e1e20-12ef-4f19-b9c4-a91313f8c057/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2022-11-21 16:07:00,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:00,391 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:07:00,494 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_d10e1e20-12ef-4f19-b9c4-a91313f8c057/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2022-11-21 16:07:00,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:07:00,547 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:07:00,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00 WrapperNode [2022-11-21 16:07:00,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:07:00,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:00,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:07:00,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:07:00,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,631 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 101, statements flattened = 712 [2022-11-21 16:07:00,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:07:00,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:07:00,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:07:00,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:07:00,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:07:00,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:07:00,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:07:00,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:07:00,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (1/1) ... [2022-11-21 16:07:00,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 16:07:00,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:07:00,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 16:07:00,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 16:07:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:07:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:07:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:07:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:07:00,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:07:00,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:07:01,553 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:07:01,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:07:01,561 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 16:07:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:01 BoogieIcfgContainer [2022-11-21 16:07:01,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:07:01,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 16:07:01,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 16:07:01,569 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 16:07:01,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:01,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 04:07:00" (1/3) ... [2022-11-21 16:07:01,571 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a3842d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:07:01, skipping insertion in model container [2022-11-21 16:07:01,571 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:01,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:07:00" (2/3) ... [2022-11-21 16:07:01,572 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44a3842d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 04:07:01, skipping insertion in model container [2022-11-21 16:07:01,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 16:07:01,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:01" (3/3) ... [2022-11-21 16:07:01,573 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2022-11-21 16:07:01,630 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 16:07:01,630 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 16:07:01,630 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 16:07:01,631 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 16:07:01,631 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 16:07:01,631 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 16:07:01,631 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 16:07:01,631 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 16:07:01,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.3622448979591837) internal successors, (267), 196 states have internal predecessors, (267), 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) [2022-11-21 16:07:01,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2022-11-21 16:07:01,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:01,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:01,672 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:01,672 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:01,672 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 16:07:01,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.3622448979591837) internal successors, (267), 196 states have internal predecessors, (267), 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) [2022-11-21 16:07:01,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 129 [2022-11-21 16:07:01,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:01,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:01,681 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:01,681 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:01,687 INFO L748 eck$LassoCheckResult]: Stem: 184#ULTIMATE.startENTRYtrue 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 126#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 189#L809true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 133#L802true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 49#L817true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 58#L1007true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 25#L984true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 128#L66-2true [2022-11-21 16:07:01,688 INFO L750 eck$LassoCheckResult]: Loop: 128#L66-2true assume !false; 182#L67true assume test_~splverifierCounter~0#1 < 4; 192#L68true test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 52#L76true assume !(0 != test_~tmp~0#1); 185#L76-2true test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 96#L86true assume !(0 != test_~tmp___0~0#1); 92#L86-2true test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 177#L96true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 123#L369true assume { :end_inline_startSystem } true; 197#L104-2true assume { :begin_inline_timeShift } true; 74#L142true assume !(0 != ~pumpRunning~0); 69#L142-2true assume !(0 != ~systemActive~0); 90#L149-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 23#L865-2true __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 93#L384true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 170#L390-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 148#L159true assume { :end_inline_timeShift } true; 128#L66-2true [2022-11-21 16:07:01,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-21 16:07:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023313194] [2022-11-21 16:07:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:01,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:01,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:01,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:01,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1231972301, now seen corresponding path program 1 times [2022-11-21 16:07:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:01,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163065337] [2022-11-21 16:07:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:01,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:01,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163065337] [2022-11-21 16:07:01,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163065337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:01,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:01,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:07:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308347780] [2022-11-21 16:07:01,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:01,985 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:07:01,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:02,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:07:02,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:07:02,035 INFO L87 Difference]: Start difference. First operand has 197 states, 196 states have (on average 1.3622448979591837) internal successors, (267), 196 states have internal predecessors, (267), 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) [2022-11-21 16:07:02,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:02,143 INFO L93 Difference]: Finished difference Result 379 states and 501 transitions. [2022-11-21 16:07:02,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 501 transitions. [2022-11-21 16:07:02,158 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2022-11-21 16:07:02,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 359 states and 480 transitions. [2022-11-21 16:07:02,175 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2022-11-21 16:07:02,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2022-11-21 16:07:02,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 480 transitions. [2022-11-21 16:07:02,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:02,182 INFO L218 hiAutomatonCegarLoop]: Abstraction has 359 states and 480 transitions. [2022-11-21 16:07:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 480 transitions. [2022-11-21 16:07:02,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 356. [2022-11-21 16:07:02,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 356 states have (on average 1.3370786516853932) internal successors, (476), 355 states have internal predecessors, (476), 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) [2022-11-21 16:07:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 476 transitions. [2022-11-21 16:07:02,248 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 476 transitions. [2022-11-21 16:07:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:07:02,259 INFO L428 stractBuchiCegarLoop]: Abstraction has 356 states and 476 transitions. [2022-11-21 16:07:02,259 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 16:07:02,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 356 states and 476 transitions. [2022-11-21 16:07:02,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 245 [2022-11-21 16:07:02,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:02,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:02,270 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:02,271 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] [2022-11-21 16:07:02,271 INFO L748 eck$LassoCheckResult]: Stem: 778#ULTIMATE.startENTRY 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 687#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 688#L809 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 706#L802 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 707#L817 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 723#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 666#L984 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 667#L66-2 [2022-11-21 16:07:02,272 INFO L750 eck$LassoCheckResult]: Loop: 667#L66-2 assume !false; 691#L67 assume test_~splverifierCounter~0#1 < 4; 776#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 896#L76 assume !(0 != test_~tmp~0#1); 894#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 587#L86 assume !(0 != test_~tmp___0~0#1); 589#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 774#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 678#L369 assume { :end_inline_startSystem } true; 640#L104-2 assume { :begin_inline_timeShift } true; 761#L142 assume !(0 != ~pumpRunning~0); 728#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 759#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 768#L174-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 656#L166-3 assume { :end_inline_processEnvironment__wrappee__base } true; 603#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 604#L200-1 assume { :end_inline_processEnvironment } true; 644#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 662#L865-2 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 663#L384 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 765#L390-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 737#L159 assume { :end_inline_timeShift } true; 667#L66-2 [2022-11-21 16:07:02,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-21 16:07:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:02,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006276339] [2022-11-21 16:07:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1933568657, now seen corresponding path program 1 times [2022-11-21 16:07:02,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:02,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520384791] [2022-11-21 16:07:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:02,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:02,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520384791] [2022-11-21 16:07:02,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520384791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:02,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:02,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:07:02,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619692972] [2022-11-21 16:07:02,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:02,371 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 16:07:02,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:02,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:07:02,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:07:02,372 INFO L87 Difference]: Start difference. First operand 356 states and 476 transitions. cyclomatic complexity: 123 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) [2022-11-21 16:07:02,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:02,473 INFO L93 Difference]: Finished difference Result 492 states and 635 transitions. [2022-11-21 16:07:02,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 635 transitions. [2022-11-21 16:07:02,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2022-11-21 16:07:02,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 492 states and 635 transitions. [2022-11-21 16:07:02,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 492 [2022-11-21 16:07:02,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 492 [2022-11-21 16:07:02,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 492 states and 635 transitions. [2022-11-21 16:07:02,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:02,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 492 states and 635 transitions. [2022-11-21 16:07:02,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states and 635 transitions. [2022-11-21 16:07:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2022-11-21 16:07:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 492 states have (on average 1.2906504065040652) internal successors, (635), 491 states have internal predecessors, (635), 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) [2022-11-21 16:07:02,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 635 transitions. [2022-11-21 16:07:02,528 INFO L240 hiAutomatonCegarLoop]: Abstraction has 492 states and 635 transitions. [2022-11-21 16:07:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:07:02,530 INFO L428 stractBuchiCegarLoop]: Abstraction has 492 states and 635 transitions. [2022-11-21 16:07:02,531 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 16:07:02,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 492 states and 635 transitions. [2022-11-21 16:07:02,534 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 347 [2022-11-21 16:07:02,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:02,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:02,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:02,539 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] [2022-11-21 16:07:02,540 INFO L748 eck$LassoCheckResult]: Stem: 1644#ULTIMATE.startENTRY 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1542#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1543#L809 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1565#L802 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1566#L817 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1585#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1519#L984 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1520#L66-2 [2022-11-21 16:07:02,540 INFO L750 eck$LassoCheckResult]: Loop: 1520#L66-2 assume !false; 1758#L67 assume test_~splverifierCounter~0#1 < 4; 1757#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 1755#L76 assume !(0 != test_~tmp~0#1); 1753#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 1751#L86 assume !(0 != test_~tmp___0~0#1); 1749#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 1639#L96 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 1494#L104 assume !(0 != test_~tmp___1~0#1); 1495#L104-2 assume { :begin_inline_timeShift } true; 1747#L142 assume !(0 != ~pumpRunning~0); 1710#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1746#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1738#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#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~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1745#L905-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1744#L910-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1742#L320-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1740#L320-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 1736#L326-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 1734#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1610#L166-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1457#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1458#L200-1 assume { :end_inline_processEnvironment } true; 1497#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1767#L865-2 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 1763#L384 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6#1; 1761#L390-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1760#L159 assume { :end_inline_timeShift } true; 1520#L66-2 [2022-11-21 16:07:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-21 16:07:02,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:02,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835562423] [2022-11-21 16:07:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:02,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:02,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:02,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1791994139, now seen corresponding path program 1 times [2022-11-21 16:07:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:02,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894641177] [2022-11-21 16:07:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:02,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:02,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 541012191, now seen corresponding path program 1 times [2022-11-21 16:07:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:02,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874128451] [2022-11-21 16:07:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:07:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:07:02,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:07:02,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874128451] [2022-11-21 16:07:02,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874128451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:07:02,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:07:02,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:07:02,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025301852] [2022-11-21 16:07:02,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:07:03,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:07:03,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:07:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:07:03,194 INFO L87 Difference]: Start difference. First operand 492 states and 635 transitions. cyclomatic complexity: 146 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) [2022-11-21 16:07:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:07:03,393 INFO L93 Difference]: Finished difference Result 1771 states and 2277 transitions. [2022-11-21 16:07:03,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1771 states and 2277 transitions. [2022-11-21 16:07:03,405 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1338 [2022-11-21 16:07:03,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1771 states to 1771 states and 2277 transitions. [2022-11-21 16:07:03,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1771 [2022-11-21 16:07:03,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1771 [2022-11-21 16:07:03,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1771 states and 2277 transitions. [2022-11-21 16:07:03,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:07:03,420 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1771 states and 2277 transitions. [2022-11-21 16:07:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states and 2277 transitions. [2022-11-21 16:07:03,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 977. [2022-11-21 16:07:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 977 states have (on average 1.2763561924257933) internal successors, (1247), 976 states have internal predecessors, (1247), 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) [2022-11-21 16:07:03,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1247 transitions. [2022-11-21 16:07:03,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1247 transitions. [2022-11-21 16:07:03,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:07:03,454 INFO L428 stractBuchiCegarLoop]: Abstraction has 977 states and 1247 transitions. [2022-11-21 16:07:03,454 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 16:07:03,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 977 states and 1247 transitions. [2022-11-21 16:07:03,460 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 694 [2022-11-21 16:07:03,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 16:07:03,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 16:07:03,461 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:07:03,461 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] [2022-11-21 16:07:03,461 INFO L748 eck$LassoCheckResult]: Stem: 3949#ULTIMATE.startENTRY 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 3825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3826#L809 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3851#L802 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 3852#L817 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 3868#L1007 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3803#L984 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3804#L66-2 [2022-11-21 16:07:03,461 INFO L750 eck$LassoCheckResult]: Loop: 3804#L66-2 assume !false; 3946#L67 assume test_~splverifierCounter~0#1 < 4; 3947#L68 test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 4345#L76 assume !(0 != test_~tmp~0#1); 3951#L76-2 test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 3720#L86 assume !(0 != test_~tmp___0~0#1); 3722#L86-2 test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 3942#L96 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3812#L369 assume { :end_inline_startSystem } true; 3813#L104-2 assume { :begin_inline_timeShift } true; 3924#L142 assume !(0 != ~pumpRunning~0); 3918#L142-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 3919#L200 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3934#L174-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#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~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 3871#L905-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3761#L910-1 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 3762#L320-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3750#L320-5 isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1; 3751#L326-1 processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1; 3791#L178-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3820#L166-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3900#L174-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3778#L200-1 assume { :end_inline_processEnvironment } true; 3779#L149-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_#t~ret23#1, __utac_acc__Specification3_spec__1_#t~ret24#1, __utac_acc__Specification3_spec__1_~tmp~6#1, __utac_acc__Specification3_spec__1_~tmp___0~3#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~6#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 3799#L865-2 __utac_acc__Specification3_spec__1_#t~ret22#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~6#1 := __utac_acc__Specification3_spec__1_#t~ret22#1;havoc __utac_acc__Specification3_spec__1_#t~ret22#1; 3800#L384 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3742#L897 __utac_acc__Specification3_spec__1_#t~ret23#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~3#1 := __utac_acc__Specification3_spec__1_#t~ret23#1;havoc __utac_acc__Specification3_spec__1_#t~ret23#1; 3743#L390 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3#1); 3925#L390-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3884#L159 assume { :end_inline_timeShift } true; 3804#L66-2 [2022-11-21 16:07:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-21 16:07:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:03,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615598261] [2022-11-21 16:07:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:03,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:03,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:03,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1466920764, now seen corresponding path program 1 times [2022-11-21 16:07:03,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:03,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437059948] [2022-11-21 16:07:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:03,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:03,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:07:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1864111616, now seen corresponding path program 1 times [2022-11-21 16:07:03,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:07:03,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755483376] [2022-11-21 16:07:03,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:07:03,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:07:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:03,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:07:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:04,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:07:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:07:05,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 04:07:05 BoogieIcfgContainer [2022-11-21 16:07:05,088 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 16:07:05,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:07:05,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:07:05,089 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:07:05,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:07:01" (3/4) ... [2022-11-21 16:07:05,099 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 16:07:05,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:07:05,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:07:05,172 INFO L158 Benchmark]: Toolchain (without parser) took 5156.46ms. Allocated memory is still 192.9MB. Free memory was 149.7MB in the beginning and 104.5MB in the end (delta: 45.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,172 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:07:05,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.15ms. Allocated memory is still 192.9MB. Free memory was 149.3MB in the beginning and 130.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.78ms. Allocated memory is still 192.9MB. Free memory was 130.5MB in the beginning and 126.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,173 INFO L158 Benchmark]: Boogie Preprocessor took 41.55ms. Allocated memory is still 192.9MB. Free memory was 126.7MB in the beginning and 124.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,173 INFO L158 Benchmark]: RCFGBuilder took 889.43ms. Allocated memory is still 192.9MB. Free memory was 124.2MB in the beginning and 154.6MB in the end (delta: -30.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,174 INFO L158 Benchmark]: BuchiAutomizer took 3523.65ms. Allocated memory is still 192.9MB. Free memory was 154.6MB in the beginning and 107.7MB in the end (delta: 46.9MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,174 INFO L158 Benchmark]: Witness Printer took 82.52ms. Allocated memory is still 192.9MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:07:05,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.15ms. Allocated memory is still 192.9MB. Free memory was 149.3MB in the beginning and 130.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.78ms. Allocated memory is still 192.9MB. Free memory was 130.5MB in the beginning and 126.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.55ms. Allocated memory is still 192.9MB. Free memory was 126.7MB in the beginning and 124.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 889.43ms. Allocated memory is still 192.9MB. Free memory was 124.2MB in the beginning and 154.6MB in the end (delta: -30.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3523.65ms. Allocated memory is still 192.9MB. Free memory was 154.6MB in the beginning and 107.7MB in the end (delta: 46.9MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 82.52ms. Allocated memory is still 192.9MB. Free memory was 107.7MB in the beginning and 104.5MB in the end (delta: 3.1MB). 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 977 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 797 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, 1382 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1382 mSDsluCounter, 2445 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1573 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 872 mSDtfsCounter, 154 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: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L368] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L312] int retValue_acc ; [L313] int tmp ; [L314] int tmp___0 ; [L318] CALL, EXPR isHighWaterSensorDry() [L902] int retValue_acc ; [L905] COND TRUE waterLevel < 2 [L906] retValue_acc = 1 [L907] return (retValue_acc); [L318] RET, EXPR isHighWaterSensorDry() [L318] tmp = isHighWaterSensorDry() [L320] COND TRUE \read(tmp) [L321] tmp___0 = 0 [L325] retValue_acc = tmp___0 [L326] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L382] CALL, EXPR isMethaneLevelCritical() [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); [L382] RET, EXPR isMethaneLevelCritical() [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND FALSE !(tmp___0 == 2) [L157] RET __utac_acc__Specification3_spec__1() [L113] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 66]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L368] systemActive = 1 [L98] RET startSystem() [L113] CALL timeShift() [L142] COND FALSE !(\read(pumpRunning)) [L149] COND TRUE \read(systemActive) [L151] CALL processEnvironment() [L197] int tmp ; [L200] COND FALSE !(\read(pumpRunning)) [L215] CALL processEnvironment__wrappee__highWaterSensor() [L171] int tmp ; [L174] COND TRUE ! pumpRunning [L176] CALL, EXPR isHighWaterLevel() [L312] int retValue_acc ; [L313] int tmp ; [L314] int tmp___0 ; [L318] CALL, EXPR isHighWaterSensorDry() [L902] int retValue_acc ; [L905] COND TRUE waterLevel < 2 [L906] retValue_acc = 1 [L907] return (retValue_acc); [L318] RET, EXPR isHighWaterSensorDry() [L318] tmp = isHighWaterSensorDry() [L320] COND TRUE \read(tmp) [L321] tmp___0 = 0 [L325] retValue_acc = tmp___0 [L326] return (retValue_acc); [L176] RET, EXPR isHighWaterLevel() [L176] tmp = isHighWaterLevel() [L178] COND FALSE !(\read(tmp)) [L184] FCALL processEnvironment__wrappee__base() [L215] RET processEnvironment__wrappee__highWaterSensor() [L151] RET processEnvironment() [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L382] CALL, EXPR isMethaneLevelCritical() [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); [L382] RET, EXPR isMethaneLevelCritical() [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND FALSE !(tmp___0 == 2) [L157] RET __utac_acc__Specification3_spec__1() [L113] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 16:07:05,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d10e1e20-12ef-4f19-b9c4-a91313f8c057/bin/uautomizer-vX5HgA9Q3a/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)