./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/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_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/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_c6526584-895b-4397-afae-ddf46cf9ae21/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 c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 --- 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 20:48:21,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:48:21,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:48:21,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:48:21,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:48:21,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:48:21,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:48:21,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:48:21,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:48:21,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:48:21,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:48:21,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:48:21,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:48:21,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:48:21,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:48:21,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:48:21,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:48:21,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:48:21,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:48:21,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:48:21,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:48:21,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:48:21,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:48:21,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:48:21,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:48:21,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:48:21,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:48:21,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:48:21,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:48:21,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:48:21,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:48:21,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:48:21,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:48:21,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:48:21,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:48:21,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:48:21,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:48:21,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:48:21,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:48:21,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:48:21,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:48:21,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 20:48:21,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:48:21,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:48:21,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:48:21,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:48:21,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:48:21,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:48:21,337 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:48:21,337 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 20:48:21,337 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 20:48:21,337 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 20:48:21,337 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 20:48:21,338 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 20:48:21,338 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 20:48:21,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:48:21,338 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:48:21,338 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 20:48:21,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 20:48:21,340 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:48:21,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:48:21,340 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 20:48:21,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:48:21,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 20:48:21,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:48:21,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:48:21,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:48:21,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:48:21,342 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 20:48:21,342 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_c6526584-895b-4397-afae-ddf46cf9ae21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 [2022-12-13 20:48:21,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:48:21,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:48:21,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:48:21,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:48:21,545 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:48:21,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-12-13 20:48:24,111 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:48:24,289 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:48:24,289 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2022-12-13 20:48:24,298 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/data/d3b5f1148/30f905ac2d674c418caac09761c040ec/FLAG6be22f1cc [2022-12-13 20:48:24,664 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/data/d3b5f1148/30f905ac2d674c418caac09761c040ec [2022-12-13 20:48:24,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:48:24,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:48:24,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:48:24,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:48:24,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:48:24,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:48:24" (1/1) ... [2022-12-13 20:48:24,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce5e90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:24, skipping insertion in model container [2022-12-13 20:48:24,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:48:24" (1/1) ... [2022-12-13 20:48:24,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:48:24,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:48:24,836 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_c6526584-895b-4397-afae-ddf46cf9ae21/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-12-13 20:48:24,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:48:24,946 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:48:24,956 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_c6526584-895b-4397-afae-ddf46cf9ae21/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c[1605,1618] [2022-12-13 20:48:25,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:48:25,023 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:48:25,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25 WrapperNode [2022-12-13 20:48:25,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:48:25,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:48:25,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:48:25,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:48:25,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,086 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 60, calls inlined = 176, statements flattened = 1207 [2022-12-13 20:48:25,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:48:25,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:48:25,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:48:25,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:48:25,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:48:25,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:48:25,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:48:25,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:48:25,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (1/1) ... [2022-12-13 20:48:25,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 20:48:25,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:48:25,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 20:48:25,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 20:48:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:48:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:48:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:48:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:48:25,253 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:48:25,255 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:48:25,750 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:48:25,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:48:25,757 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 20:48:25,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:48:25 BoogieIcfgContainer [2022-12-13 20:48:25,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:48:25,760 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 20:48:25,760 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 20:48:25,763 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 20:48:25,764 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:48:25,764 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 08:48:24" (1/3) ... [2022-12-13 20:48:25,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@457ffa78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 08:48:25, skipping insertion in model container [2022-12-13 20:48:25,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:48:25,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:48:25" (2/3) ... [2022-12-13 20:48:25,765 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@457ffa78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 08:48:25, skipping insertion in model container [2022-12-13 20:48:25,765 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 20:48:25,765 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:48:25" (3/3) ... [2022-12-13 20:48:25,767 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2022-12-13 20:48:25,812 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 20:48:25,812 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 20:48:25,813 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 20:48:25,813 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 20:48:25,813 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 20:48:25,813 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 20:48:25,813 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 20:48:25,813 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 20:48:25,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 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 20:48:25,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-12-13 20:48:25,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:48:25,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:48:25,848 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:25,848 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 20:48:25,848 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 20:48:25,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 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 20:48:25,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 213 [2022-12-13 20:48:25,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:48:25,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:48:25,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:25,856 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 20:48:25,860 INFO L748 eck$LassoCheckResult]: Stem: 196#$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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 212#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 28#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 295#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 106#valid_product_returnLabel#1true main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 218#L578true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 80#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 146#L977-2true [2022-12-13 20:48:25,861 INFO L750 eck$LassoCheckResult]: Loop: 146#L977-2true assume !false; 12#L978true assume test_~splverifierCounter~0#1 < 4; 142#L979true test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 111#L987true assume !(0 != test_~tmp~11#1); 264#L987-2true test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 265#L997true assume !(0 != test_~tmp___0~3#1); 160#L997-2true test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 92#L1007true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 63#startSystem_returnLabel#1true assume { :end_inline_startSystem } true; 190#L1015-2true assume { :begin_inline_timeShift } true; 40#L607true assume !(0 != ~pumpRunning~0); 69#L607-2true assume !(0 != ~systemActive~0); 99#L614-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 316#isMethaneLevelCritical_returnLabel#6true __utac_acc__Specification1_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret5#1;havoc __utac_acc__Specification1_spec__1_#t~ret5#1; 153#L107true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 150#L107-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 236#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 146#L977-2true [2022-12-13 20:48:25,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:25,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-12-13 20:48:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:25,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420699698] [2022-12-13 20:48:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:25,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:25,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:48:25,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1296492159, now seen corresponding path program 1 times [2022-12-13 20:48:25,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:25,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172447108] [2022-12-13 20:48:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:26,033 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 20:48:26,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172447108] [2022-12-13 20:48:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172447108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:26,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:26,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:48:26,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878646258] [2022-12-13 20:48:26,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:26,038 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 20:48:26,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:48:26,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:48:26,063 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.3509316770186335) internal successors, (435), 322 states have internal predecessors, (435), 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 20:48:26,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:26,127 INFO L93 Difference]: Finished difference Result 631 states and 837 transitions. [2022-12-13 20:48:26,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 631 states and 837 transitions. [2022-12-13 20:48:26,135 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 416 [2022-12-13 20:48:26,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 631 states to 611 states and 816 transitions. [2022-12-13 20:48:26,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 611 [2022-12-13 20:48:26,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 611 [2022-12-13 20:48:26,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 611 states and 816 transitions. [2022-12-13 20:48:26,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:48:26,146 INFO L218 hiAutomatonCegarLoop]: Abstraction has 611 states and 816 transitions. [2022-12-13 20:48:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states and 816 transitions. [2022-12-13 20:48:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 608. [2022-12-13 20:48:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 608 states have (on average 1.3355263157894737) internal successors, (812), 607 states have internal predecessors, (812), 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 20:48:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 812 transitions. [2022-12-13 20:48:26,194 INFO L240 hiAutomatonCegarLoop]: Abstraction has 608 states and 812 transitions. [2022-12-13 20:48:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:48:26,198 INFO L428 stractBuchiCegarLoop]: Abstraction has 608 states and 812 transitions. [2022-12-13 20:48:26,198 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 20:48:26,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 608 states and 812 transitions. [2022-12-13 20:48:26,201 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 413 [2022-12-13 20:48:26,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:48:26,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:48:26,201 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:26,201 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] [2022-12-13 20:48:26,202 INFO L748 eck$LassoCheckResult]: Stem: 1252#$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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1253#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 1017#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1018#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1153#valid_product_returnLabel#1 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 1154#L578 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 1110#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1111#L977-2 [2022-12-13 20:48:26,202 INFO L750 eck$LassoCheckResult]: Loop: 1111#L977-2 assume !false; 1370#L978 assume test_~splverifierCounter~0#1 < 4; 1371#L979 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1414#L987 assume !(0 != test_~tmp~11#1); 1412#L987-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1408#L997 assume !(0 != test_~tmp___0~3#1); 1403#L997-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 1402#L1007 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1088#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 1089#L1015-2 assume { :begin_inline_timeShift } true; 1040#L607 assume !(0 != ~pumpRunning~0); 1041#L607-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1051#L691 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret35#1, isMethaneAlarm_~retValue_acc~6#1;havoc isMethaneAlarm_~retValue_acc~6#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1053#isMethaneLevelCritical_returnLabel#1 isMethaneAlarm_#t~ret35#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6#1 := isMethaneAlarm_#t~ret35#1;havoc isMethaneAlarm_#t~ret35#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~6#1; 1326#isMethaneAlarm_returnLabel#1 processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; 1215#L695 assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1106#deactivatePump_returnLabel#2 assume { :end_inline_deactivatePump } true; 1031#L691-1 assume { :end_inline_processEnvironment } true; 1143#L614-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 1144#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret5#1;havoc __utac_acc__Specification1_spec__1_#t~ret5#1; 1210#L107 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1211#L107-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1374#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1111#L977-2 [2022-12-13 20:48:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-12-13 20:48:26,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:26,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182179661] [2022-12-13 20:48:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,211 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:48:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:26,220 INFO L85 PathProgramCache]: Analyzing trace with hash -2000409558, now seen corresponding path program 1 times [2022-12-13 20:48:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:26,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719727382] [2022-12-13 20:48:26,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:26,240 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 20:48:26,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:26,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719727382] [2022-12-13 20:48:26,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719727382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:26,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:26,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:48:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666729864] [2022-12-13 20:48:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:26,241 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 20:48:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:26,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:48:26,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:48:26,242 INFO L87 Difference]: Start difference. First operand 608 states and 812 transitions. cyclomatic complexity: 207 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 20:48:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:26,318 INFO L93 Difference]: Finished difference Result 624 states and 791 transitions. [2022-12-13 20:48:26,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 624 states and 791 transitions. [2022-12-13 20:48:26,329 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 435 [2022-12-13 20:48:26,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 624 states to 624 states and 791 transitions. [2022-12-13 20:48:26,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 624 [2022-12-13 20:48:26,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 624 [2022-12-13 20:48:26,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 624 states and 791 transitions. [2022-12-13 20:48:26,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:48:26,334 INFO L218 hiAutomatonCegarLoop]: Abstraction has 624 states and 791 transitions. [2022-12-13 20:48:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states and 791 transitions. [2022-12-13 20:48:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2022-12-13 20:48:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 624 states have (on average 1.267628205128205) internal successors, (791), 623 states have internal predecessors, (791), 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 20:48:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 791 transitions. [2022-12-13 20:48:26,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 624 states and 791 transitions. [2022-12-13 20:48:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:48:26,345 INFO L428 stractBuchiCegarLoop]: Abstraction has 624 states and 791 transitions. [2022-12-13 20:48:26,345 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 20:48:26,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 624 states and 791 transitions. [2022-12-13 20:48:26,348 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 435 [2022-12-13 20:48:26,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 20:48:26,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 20:48:26,349 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:26,349 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 20:48:26,349 INFO L748 eck$LassoCheckResult]: Stem: 2441#$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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2442#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret30#1, main_~retValue_acc~5#1, main_~tmp~4#1;havoc main_~retValue_acc~5#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 2241#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2242#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2350#valid_product_returnLabel#1 main_#t~ret30#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret30#1;havoc main_#t~ret30#1; 2351#L578 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 2314#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_#t~nondet54#1, test_~splverifierCounter~0#1, test_~tmp~11#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~11#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2315#L977-2 [2022-12-13 20:48:26,349 INFO L750 eck$LassoCheckResult]: Loop: 2315#L977-2 assume !false; 2217#L978 assume test_~splverifierCounter~0#1 < 4; 2218#L979 test_~tmp~11#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2356#L987 assume !(0 != test_~tmp~11#1); 2358#L987-2 test_~tmp___0~3#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 2492#L997 assume !(0 != test_~tmp___0~3#1); 2408#L997-2 test_~tmp___2~0#1 := test_#t~nondet53#1;havoc test_#t~nondet53#1; 2409#L1007 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2292#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 2293#L1015-2 assume { :begin_inline_timeShift } true; 2254#L607 assume !(0 != ~pumpRunning~0); 2255#L607-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2263#L691 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret32#1, processEnvironment__wrappee__methaneQuery_~tmp~6#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~6#1; 2264#L665-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 2633#L639-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret44#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2632#L947-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 2631#isHighWaterSensorDry_returnLabel#4 isHighWaterLevel_#t~ret44#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret44#1;havoc isHighWaterLevel_#t~ret44#1; 2630#L810-9 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2629#L810-11 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2628#isHighWaterLevel_returnLabel#4 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 2627#L643-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2371#processEnvironment__wrappee__base_returnLabel#7 assume { :end_inline_processEnvironment__wrappee__base } true; 2372#L639-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2655#L665-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2308#L691-1 assume { :end_inline_processEnvironment } true; 2577#L614-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret5#1, __utac_acc__Specification1_spec__1_#t~ret6#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2571#isMethaneLevelCritical_returnLabel#6 __utac_acc__Specification1_spec__1_#t~ret5#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret5#1;havoc __utac_acc__Specification1_spec__1_#t~ret5#1; 2572#L107 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 2565#L107-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2566#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2315#L977-2 [2022-12-13 20:48:26,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-12-13 20:48:26,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:26,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607438667] [2022-12-13 20:48:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:26,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:48:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash 236223142, now seen corresponding path program 1 times [2022-12-13 20:48:26,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:26,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891418189] [2022-12-13 20:48:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:48:26,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:26,379 INFO L85 PathProgramCache]: Analyzing trace with hash 633413994, now seen corresponding path program 1 times [2022-12-13 20:48:26,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:26,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014289744] [2022-12-13 20:48:26,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:26,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:26,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:48:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:27,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:48:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:48:27,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 08:48:27 BoogieIcfgContainer [2022-12-13 20:48:27,215 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 20:48:27,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:48:27,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:48:27,215 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:48:27,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:48:25" (3/4) ... [2022-12-13 20:48:27,217 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 20:48:27,253 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:48:27,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:48:27,254 INFO L158 Benchmark]: Toolchain (without parser) took 2585.84ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 92.0MB in the beginning and 94.4MB in the end (delta: -2.4MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,254 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:48:27,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.57ms. Allocated memory is still 125.8MB. Free memory was 92.0MB in the beginning and 72.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.40ms. Allocated memory is still 125.8MB. Free memory was 72.7MB in the beginning and 67.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,255 INFO L158 Benchmark]: Boogie Preprocessor took 47.58ms. Allocated memory is still 125.8MB. Free memory was 67.7MB in the beginning and 64.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,256 INFO L158 Benchmark]: RCFGBuilder took 624.46ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 111.6MB in the end (delta: -47.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,256 INFO L158 Benchmark]: BuchiAutomizer took 1454.58ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 97.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,256 INFO L158 Benchmark]: Witness Printer took 38.53ms. Allocated memory is still 161.5MB. Free memory was 97.5MB in the beginning and 94.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:48:27,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 70.0MB in the beginning and 69.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.57ms. Allocated memory is still 125.8MB. Free memory was 92.0MB in the beginning and 72.7MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.40ms. Allocated memory is still 125.8MB. Free memory was 72.7MB in the beginning and 67.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.58ms. Allocated memory is still 125.8MB. Free memory was 67.7MB in the beginning and 64.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 624.46ms. Allocated memory was 125.8MB in the beginning and 161.5MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 111.6MB in the end (delta: -47.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1454.58ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 97.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 38.53ms. Allocated memory is still 161.5MB. Free memory was 97.5MB in the beginning and 94.4MB 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 624 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 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, 645 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 645 mSDsluCounter, 1267 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 537 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 730 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 977]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L294] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] int retValue_acc ; [L570] int tmp ; [L574] FCALL select_helpers() [L575] FCALL select_features() [L576] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L576] RET, EXPR valid_product() [L576] tmp = valid_product() [L578] COND TRUE \read(tmp) [L580] FCALL setup() [L581] CALL runTest() [L563] CALL test() [L968] int splverifierCounter ; [L969] int tmp ; [L970] int tmp___0 ; [L971] int tmp___1 ; [L972] int tmp___2 ; [L975] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L977] COND TRUE 1 [L979] COND TRUE splverifierCounter < 4 [L985] tmp = __VERIFIER_nondet_int() [L987] COND FALSE !(\read(tmp)) [L995] tmp___0 = __VERIFIER_nondet_int() [L997] COND FALSE !(\read(tmp___0)) [L1005] tmp___2 = __VERIFIER_nondet_int() [L1007] COND TRUE \read(tmp___2) [L1009] CALL startSystem() [L858] systemActive = 1 [L1009] RET startSystem() [L1024] CALL timeShift() [L607] COND FALSE !(\read(pumpRunning)) [L614] COND TRUE \read(systemActive) [L616] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(\read(pumpRunning)) [L706] CALL processEnvironment__wrappee__methaneQuery() [L662] int tmp ; [L665] COND FALSE !(\read(pumpRunning)) [L680] CALL processEnvironment__wrappee__highWaterSensor() [L636] int tmp ; [L639] COND TRUE ! pumpRunning [L641] CALL, EXPR isHighWaterLevel() [L802] int retValue_acc ; [L803] int tmp ; [L804] int tmp___0 ; [L808] CALL, EXPR isHighWaterSensorDry() [L944] int retValue_acc ; [L947] COND TRUE waterLevel < 2 [L948] retValue_acc = 1 [L949] return (retValue_acc); [L808] RET, EXPR isHighWaterSensorDry() [L808] tmp = isHighWaterSensorDry() [L810] COND TRUE \read(tmp) [L811] tmp___0 = 0 [L815] retValue_acc = tmp___0 [L816] return (retValue_acc); [L641] RET, EXPR isHighWaterLevel() [L641] tmp = isHighWaterLevel() [L643] COND FALSE !(\read(tmp)) [L649] FCALL processEnvironment__wrappee__base() [L680] RET processEnvironment__wrappee__highWaterSensor() [L706] RET processEnvironment__wrappee__methaneQuery() [L616] RET processEnvironment() [L622] CALL __utac_acc__Specification1_spec__1() [L100] int tmp ; [L101] int tmp___0 ; [L105] CALL, EXPR isMethaneLevelCritical() [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); [L105] RET, EXPR isMethaneLevelCritical() [L105] tmp = isMethaneLevelCritical() [L107] COND FALSE !(\read(tmp)) [L622] RET __utac_acc__Specification1_spec__1() [L1024] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 977]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L294] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] int retValue_acc ; [L570] int tmp ; [L574] FCALL select_helpers() [L575] FCALL select_features() [L576] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L576] RET, EXPR valid_product() [L576] tmp = valid_product() [L578] COND TRUE \read(tmp) [L580] FCALL setup() [L581] CALL runTest() [L563] CALL test() [L968] int splverifierCounter ; [L969] int tmp ; [L970] int tmp___0 ; [L971] int tmp___1 ; [L972] int tmp___2 ; [L975] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L977] COND TRUE 1 [L979] COND TRUE splverifierCounter < 4 [L985] tmp = __VERIFIER_nondet_int() [L987] COND FALSE !(\read(tmp)) [L995] tmp___0 = __VERIFIER_nondet_int() [L997] COND FALSE !(\read(tmp___0)) [L1005] tmp___2 = __VERIFIER_nondet_int() [L1007] COND TRUE \read(tmp___2) [L1009] CALL startSystem() [L858] systemActive = 1 [L1009] RET startSystem() [L1024] CALL timeShift() [L607] COND FALSE !(\read(pumpRunning)) [L614] COND TRUE \read(systemActive) [L616] CALL processEnvironment() [L688] int tmp ; [L691] COND FALSE !(\read(pumpRunning)) [L706] CALL processEnvironment__wrappee__methaneQuery() [L662] int tmp ; [L665] COND FALSE !(\read(pumpRunning)) [L680] CALL processEnvironment__wrappee__highWaterSensor() [L636] int tmp ; [L639] COND TRUE ! pumpRunning [L641] CALL, EXPR isHighWaterLevel() [L802] int retValue_acc ; [L803] int tmp ; [L804] int tmp___0 ; [L808] CALL, EXPR isHighWaterSensorDry() [L944] int retValue_acc ; [L947] COND TRUE waterLevel < 2 [L948] retValue_acc = 1 [L949] return (retValue_acc); [L808] RET, EXPR isHighWaterSensorDry() [L808] tmp = isHighWaterSensorDry() [L810] COND TRUE \read(tmp) [L811] tmp___0 = 0 [L815] retValue_acc = tmp___0 [L816] return (retValue_acc); [L641] RET, EXPR isHighWaterLevel() [L641] tmp = isHighWaterLevel() [L643] COND FALSE !(\read(tmp)) [L649] FCALL processEnvironment__wrappee__base() [L680] RET processEnvironment__wrappee__highWaterSensor() [L706] RET processEnvironment__wrappee__methaneQuery() [L616] RET processEnvironment() [L622] CALL __utac_acc__Specification1_spec__1() [L100] int tmp ; [L101] int tmp___0 ; [L105] CALL, EXPR isMethaneLevelCritical() [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); [L105] RET, EXPR isMethaneLevelCritical() [L105] tmp = isMethaneLevelCritical() [L107] COND FALSE !(\read(tmp)) [L622] RET __utac_acc__Specification1_spec__1() [L1024] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 20:48:27,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6526584-895b-4397-afae-ddf46cf9ae21/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)