./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF --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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:03:54,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:03:54,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:03:54,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:03:54,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:03:54,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:03:54,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:03:54,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:03:54,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:03:54,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:03:54,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:03:54,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:03:54,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:03:54,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:03:54,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:03:54,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:03:54,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:03:54,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:03:54,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:03:54,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:03:54,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:03:54,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:03:54,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:03:54,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:03:54,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:03:54,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:03:54,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:03:54,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:03:54,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:03:54,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:03:54,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:03:54,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:03:54,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:03:54,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:03:54,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:03:54,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:03:54,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:03:54,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:03:54,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:03:54,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:03:54,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:03:54,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:03:54,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:03:54,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:03:54,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:03:54,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:03:54,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:03:54,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:03:54,472 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:03:54,473 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:03:54,473 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:03:54,473 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:03:54,473 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:03:54,473 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:03:54,474 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:03:54,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:03:54,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:03:54,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:03:54,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:03:54,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:03:54,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:03:54,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:03:54,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:03:54,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:03:54,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:03:54,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:03:54,476 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:03:54,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:03:54,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:03:54,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:03:54,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:03:54,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:03:54,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:03:54,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:03:54,479 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:03:54,479 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_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2021-11-20 07:03:54,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:03:54,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:03:54,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:03:54,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:03:54,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:03:54,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-11-20 07:03:54,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/data/f45d68244/b35424ebe89d4c89ae06f828226a868b/FLAGe936b2919 [2021-11-20 07:03:55,318 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:03:55,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-11-20 07:03:55,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/data/f45d68244/b35424ebe89d4c89ae06f828226a868b/FLAGe936b2919 [2021-11-20 07:03:55,656 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/data/f45d68244/b35424ebe89d4c89ae06f828226a868b [2021-11-20 07:03:55,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:03:55,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:03:55,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:03:55,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:03:55,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:03:55,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:03:55" (1/1) ... [2021-11-20 07:03:55,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78441e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:55, skipping insertion in model container [2021-11-20 07:03:55,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:03:55" (1/1) ... [2021-11-20 07:03:55,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:03:55,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:03:56,015 WARN L230 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_74cd3e7c-5e41-484f-8cec-91c5bd58a544/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2021-11-20 07:03:56,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:03:56,043 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:03:56,120 WARN L230 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_74cd3e7c-5e41-484f-8cec-91c5bd58a544/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2021-11-20 07:03:56,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:03:56,171 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:03:56,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56 WrapperNode [2021-11-20 07:03:56,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:03:56,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:03:56,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:03:56,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:03:56,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,309 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 137, statements flattened = 1001 [2021-11-20 07:03:56,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:03:56,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:03:56,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:03:56,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:03:56,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:03:56,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:03:56,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:03:56,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:03:56,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (1/1) ... [2021-11-20 07:03:56,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:03:56,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:03:56,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:03:56,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:03:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:03:56,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:03:56,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:03:56,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:03:56,632 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:03:56,633 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:03:57,322 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:03:57,337 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:03:57,337 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:03:57,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:57 BoogieIcfgContainer [2021-11-20 07:03:57,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:03:57,342 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:03:57,342 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:03:57,345 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:03:57,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:57,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:03:55" (1/3) ... [2021-11-20 07:03:57,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c763aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:03:57, skipping insertion in model container [2021-11-20 07:03:57,348 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:57,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:03:56" (2/3) ... [2021-11-20 07:03:57,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c763aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:03:57, skipping insertion in model container [2021-11-20 07:03:57,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:03:57,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:57" (3/3) ... [2021-11-20 07:03:57,361 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2021-11-20 07:03:57,418 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:03:57,418 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:03:57,418 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:03:57,418 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:03:57,419 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:03:57,419 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:03:57,419 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:03:57,419 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:03:57,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:57,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-11-20 07:03:57,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:57,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:57,509 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:57,523 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:57,523 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:03:57,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:57,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-11-20 07:03:57,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:57,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:57,564 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:57,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:57,569 INFO L791 eck$LassoCheckResult]: Stem: 255#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 172#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#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; 191#L743true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 168#L736true 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; 27#L751true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 237#L977true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 268#L954true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 182#L430-2true [2021-11-20 07:03:57,570 INFO L793 eck$LassoCheckResult]: Loop: 182#L430-2true assume !false; 267#L431true assume test_~splverifierCounter~0#1 < 4; 222#L432true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 233#L440true assume !(0 != test_~tmp~3#1); 232#L440-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 86#L450true assume !(0 != test_~tmp___0~0#1); 23#L450-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 53#L460true assume 0 != test_~tmp___2~0#1; 76#L466-2true assume { :begin_inline_timeShift } true; 36#L502true assume !(0 != ~pumpRunning~0); 126#L502-2true assume !(0 != ~systemActive~0); 216#L509-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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; 211#L841true __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 22#L877true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 271#L877-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 220#L519true assume { :end_inline_timeShift } true; 182#L430-2true [2021-11-20 07:03:57,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:57,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-20 07:03:57,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:57,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105347274] [2021-11-20 07:03:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:57,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:57,702 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:57,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:57,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:57,756 INFO L85 PathProgramCache]: Analyzing trace with hash 408252804, now seen corresponding path program 1 times [2021-11-20 07:03:57,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:57,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345445571] [2021-11-20 07:03:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:57,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:57,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:57,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:57,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:57,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1763671880, now seen corresponding path program 1 times [2021-11-20 07:03:57,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:57,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979218835] [2021-11-20 07:03:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:57,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:57,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:57,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979218835] [2021-11-20 07:03:57,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979218835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:57,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:57,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:03:57,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10336253] [2021-11-20 07:03:57,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:58,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:03:58,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:03:58,135 INFO L87 Difference]: Start difference. First operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2021-11-20 07:03:58,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:58,229 INFO L93 Difference]: Finished difference Result 267 states and 355 transitions. [2021-11-20 07:03:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:03:58,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 355 transitions. [2021-11-20 07:03:58,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2021-11-20 07:03:58,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 257 states and 345 transitions. [2021-11-20 07:03:58,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 257 [2021-11-20 07:03:58,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 257 [2021-11-20 07:03:58,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 257 states and 345 transitions. [2021-11-20 07:03:58,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:03:58,267 INFO L681 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-11-20 07:03:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states and 345 transitions. [2021-11-20 07:03:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2021-11-20 07:03:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 257 states have (on average 1.3424124513618676) internal successors, (345), 256 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 345 transitions. [2021-11-20 07:03:58,322 INFO L704 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-11-20 07:03:58,322 INFO L587 BuchiCegarLoop]: Abstraction has 257 states and 345 transitions. [2021-11-20 07:03:58,322 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:03:58,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 257 states and 345 transitions. [2021-11-20 07:03:58,331 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 172 [2021-11-20 07:03:58,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:58,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:58,333 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,333 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,333 INFO L791 eck$LassoCheckResult]: Stem: 811#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 781#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#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; 782#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 776#L736 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; 607#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 608#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 809#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 789#L430-2 [2021-11-20 07:03:58,334 INFO L793 eck$LassoCheckResult]: Loop: 789#L430-2 assume !false; 790#L431 assume test_~splverifierCounter~0#1 < 4; 804#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 805#L440 assume !(0 != test_~tmp~3#1); 656#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 692#L450 assume !(0 != test_~tmp___0~0#1); 598#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 599#L460 assume 0 != test_~tmp___2~0#1; 652#L466-2 assume { :begin_inline_timeShift } true; 621#L502 assume !(0 != ~pumpRunning~0); 622#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 716#L586 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#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; 717#L809 isMethaneAlarm_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret34#1;havoc isMethaneAlarm_#t~ret34#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 680#L630 processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; 633#L590 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 634#L620 assume { :end_inline_deactivatePump } true; 645#L586-1 assume { :end_inline_processEnvironment } true; 767#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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; 800#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 595#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 596#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 803#L519 assume { :end_inline_timeShift } true; 789#L430-2 [2021-11-20 07:03:58,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-20 07:03:58,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989591345] [2021-11-20 07:03:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,356 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,379 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,380 INFO L85 PathProgramCache]: Analyzing trace with hash -49321715, now seen corresponding path program 1 times [2021-11-20 07:03:58,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284631502] [2021-11-20 07:03:58,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:58,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:58,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284631502] [2021-11-20 07:03:58,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284631502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:58,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:58,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:03:58,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240887723] [2021-11-20 07:03:58,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:58,405 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:58,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:03:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:03:58,407 INFO L87 Difference]: Start difference. First operand 257 states and 345 transitions. cyclomatic complexity: 90 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) [2021-11-20 07:03:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:58,502 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2021-11-20 07:03:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:03:58,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 267 states and 338 transitions. [2021-11-20 07:03:58,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2021-11-20 07:03:58,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 267 states to 267 states and 338 transitions. [2021-11-20 07:03:58,514 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2021-11-20 07:03:58,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2021-11-20 07:03:58,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 338 transitions. [2021-11-20 07:03:58,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:03:58,517 INFO L681 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-11-20 07:03:58,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 338 transitions. [2021-11-20 07:03:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-20 07:03:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 267 states have (on average 1.2659176029962547) internal successors, (338), 266 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:58,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 338 transitions. [2021-11-20 07:03:58,536 INFO L704 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-11-20 07:03:58,536 INFO L587 BuchiCegarLoop]: Abstraction has 267 states and 338 transitions. [2021-11-20 07:03:58,537 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:03:58,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 267 states and 338 transitions. [2021-11-20 07:03:58,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2021-11-20 07:03:58,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:58,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:58,541 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,541 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,542 INFO L791 eck$LassoCheckResult]: Stem: 1297#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1258#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#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; 1259#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1254#L736 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; 1127#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1128#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1292#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1266#L430-2 [2021-11-20 07:03:58,542 INFO L793 eck$LassoCheckResult]: Loop: 1266#L430-2 assume !false; 1267#L431 assume test_~splverifierCounter~0#1 < 4; 1286#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1287#L440 assume !(0 != test_~tmp~3#1); 1163#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1187#L450 assume !(0 != test_~tmp___0~0#1); 1119#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1120#L460 assume 0 != test_~tmp___2~0#1; 1159#L466-2 assume { :begin_inline_timeShift } true; 1132#L502 assume !(0 != ~pumpRunning~0); 1133#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1200#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1191#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1096#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#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; 1097#L849-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1240#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1288#L688-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1172#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1173#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1236#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1237#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1134#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1135#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1152#L586-1 assume { :end_inline_processEnvironment } true; 1243#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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; 1279#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 1116#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 1117#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 1283#L519 assume { :end_inline_timeShift } true; 1266#L430-2 [2021-11-20 07:03:58,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-20 07:03:58,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705545269] [2021-11-20 07:03:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,561 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,588 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:58,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1895097644, now seen corresponding path program 1 times [2021-11-20 07:03:58,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140239426] [2021-11-20 07:03:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:58,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:58,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140239426] [2021-11-20 07:03:58,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140239426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:58,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:58,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:03:58,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483096079] [2021-11-20 07:03:58,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:58,626 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:58,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:58,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:03:58,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:03:58,627 INFO L87 Difference]: Start difference. First operand 267 states and 338 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:58,762 INFO L93 Difference]: Finished difference Result 751 states and 928 transitions. [2021-11-20 07:03:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:03:58,763 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 751 states and 928 transitions. [2021-11-20 07:03:58,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 528 [2021-11-20 07:03:58,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 751 states to 751 states and 928 transitions. [2021-11-20 07:03:58,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 751 [2021-11-20 07:03:58,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 751 [2021-11-20 07:03:58,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 751 states and 928 transitions. [2021-11-20 07:03:58,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:03:58,784 INFO L681 BuchiCegarLoop]: Abstraction has 751 states and 928 transitions. [2021-11-20 07:03:58,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states and 928 transitions. [2021-11-20 07:03:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 285. [2021-11-20 07:03:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.249122807017544) internal successors, (356), 284 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:58,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2021-11-20 07:03:58,803 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2021-11-20 07:03:58,804 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 356 transitions. [2021-11-20 07:03:58,804 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:03:58,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 356 transitions. [2021-11-20 07:03:58,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 196 [2021-11-20 07:03:58,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:58,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:58,808 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,808 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:58,808 INFO L791 eck$LassoCheckResult]: Stem: 2345#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 2291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#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; 2292#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2286#L736 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; 2156#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2157#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2338#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2351#L430-2 [2021-11-20 07:03:58,808 INFO L793 eck$LassoCheckResult]: Loop: 2351#L430-2 assume !false; 2361#L431 assume test_~splverifierCounter~0#1 < 4; 2362#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2334#L440 assume !(0 != test_~tmp~3#1); 2192#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2217#L450 assume !(0 != test_~tmp___0~0#1); 2148#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2149#L460 assume 0 != test_~tmp___2~0#1; 2188#L466-2 assume { :begin_inline_timeShift } true; 2161#L502 assume !(0 != ~pumpRunning~0); 2162#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2231#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 2222#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2124#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#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; 2125#L849-3 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~11#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2270#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 2343#L688-9 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~1#1 := 1; 2201#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 2202#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 2265#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2266#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2296#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2397#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2181#L586-1 assume { :end_inline_processEnvironment } true; 2396#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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; 2395#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 2366#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 2364#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 2363#L519 assume { :end_inline_timeShift } true; 2351#L430-2 [2021-11-20 07:03:58,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-11-20 07:03:58,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766255614] [2021-11-20 07:03:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:58,840 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:58,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1308291630, now seen corresponding path program 1 times [2021-11-20 07:03:58,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:58,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348690596] [2021-11-20 07:03:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:58,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:03:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:03:58,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:03:58,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348690596] [2021-11-20 07:03:58,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348690596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:03:58,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:03:58,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:03:58,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872308964] [2021-11-20 07:03:58,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:03:58,941 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:03:58,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:03:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:03:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:03:58,945 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. cyclomatic complexity: 73 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:03:59,137 INFO L93 Difference]: Finished difference Result 807 states and 1004 transitions. [2021-11-20 07:03:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:03:59,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 807 states and 1004 transitions. [2021-11-20 07:03:59,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 576 [2021-11-20 07:03:59,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 807 states to 807 states and 1004 transitions. [2021-11-20 07:03:59,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 807 [2021-11-20 07:03:59,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 807 [2021-11-20 07:03:59,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 807 states and 1004 transitions. [2021-11-20 07:03:59,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:03:59,159 INFO L681 BuchiCegarLoop]: Abstraction has 807 states and 1004 transitions. [2021-11-20 07:03:59,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states and 1004 transitions. [2021-11-20 07:03:59,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 312. [2021-11-20 07:03:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2275641025641026) internal successors, (383), 311 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:03:59,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 383 transitions. [2021-11-20 07:03:59,171 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2021-11-20 07:03:59,171 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 383 transitions. [2021-11-20 07:03:59,171 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 07:03:59,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 383 transitions. [2021-11-20 07:03:59,173 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2021-11-20 07:03:59,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:03:59,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:03:59,174 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:59,174 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:03:59,175 INFO L791 eck$LassoCheckResult]: Stem: 3458#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 3396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#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; 3397#L743 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3391#L736 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; 3261#L751 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 3262#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 3448#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3463#L430-2 [2021-11-20 07:03:59,175 INFO L793 eck$LassoCheckResult]: Loop: 3463#L430-2 assume !false; 3505#L431 assume test_~splverifierCounter~0#1 < 4; 3504#L432 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 3502#L440 assume !(0 != test_~tmp~3#1); 3500#L440-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 3498#L450 assume !(0 != test_~tmp___0~0#1); 3496#L450-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3495#L460 assume 0 != test_~tmp___2~0#1; 3493#L466-2 assume { :begin_inline_timeShift } true; 3266#L502 assume !(0 != ~pumpRunning~0); 3267#L502-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 3337#L586 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 3328#L560-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 3229#L534-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#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; 3230#L849-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 3376#L854-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 3489#L688-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 3488#L688-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 3487#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 3486#L538-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 3401#L526-6 assume { :end_inline_processEnvironment__wrappee__base } true; 3402#L534-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3293#L560-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 3286#L586-1 assume { :end_inline_processEnvironment } true; 3379#L509-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#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; 3425#L841 __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 3426#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 3508#L877-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 3506#L519 assume { :end_inline_timeShift } true; 3463#L430-2 [2021-11-20 07:03:59,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:59,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2021-11-20 07:03:59,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:59,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232534704] [2021-11-20 07:03:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:59,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,186 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,199 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:59,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1120005974, now seen corresponding path program 1 times [2021-11-20 07:03:59,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:59,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524647399] [2021-11-20 07:03:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:59,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,206 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:03:59,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:03:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1245740698, now seen corresponding path program 1 times [2021-11-20 07:03:59,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:03:59,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017660332] [2021-11-20 07:03:59,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:03:59,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:03:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,226 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:03:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:03:59,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:04:02,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:04:02 BoogieIcfgContainer [2021-11-20 07:04:02,859 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:04:02,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:04:02,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:04:02,861 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:04:02,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:03:57" (3/4) ... [2021-11-20 07:04:02,867 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:04:02,951 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:04:02,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:04:02,953 INFO L158 Benchmark]: Toolchain (without parser) took 7292.66ms. Allocated memory was 81.8MB in the beginning and 174.1MB in the end (delta: 92.3MB). Free memory was 46.3MB in the beginning and 78.3MB in the end (delta: -32.0MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,953 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:04:02,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 511.33ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.1MB in the beginning and 70.3MB in the end (delta: -24.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.06ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 65.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,955 INFO L158 Benchmark]: Boogie Preprocessor took 76.68ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 62.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,955 INFO L158 Benchmark]: RCFGBuilder took 953.48ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 58.6MB in the end (delta: 3.9MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,956 INFO L158 Benchmark]: BuchiAutomizer took 5517.09ms. Allocated memory was 102.8MB in the beginning and 174.1MB in the end (delta: 71.3MB). Free memory was 58.6MB in the beginning and 81.4MB in the end (delta: -22.8MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,956 INFO L158 Benchmark]: Witness Printer took 91.28ms. Allocated memory is still 174.1MB. Free memory was 81.4MB in the beginning and 78.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:04:02,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 511.33ms. Allocated memory was 81.8MB in the beginning and 102.8MB in the end (delta: 21.0MB). Free memory was 46.1MB in the beginning and 70.3MB in the end (delta: -24.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.06ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 65.6MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.68ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 62.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 953.48ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 58.6MB in the end (delta: 3.9MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5517.09ms. Allocated memory was 102.8MB in the beginning and 174.1MB in the end (delta: 71.3MB). Free memory was 58.6MB in the beginning and 81.4MB in the end (delta: -22.8MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. * Witness Printer took 91.28ms. Allocated memory is still 174.1MB. Free memory was 81.4MB in the beginning and 78.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 961 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 312 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2915 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2915 mSDsluCounter, 3111 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1623 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 1488 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 430]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ab650ac=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e791db5=0, tmp___0=0, head=0, pumpRunning=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, tmp=0, tmp=1, retValue_acc=1, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4466dea8=0, retValue_acc=1, \result=1, tmp=1, \result=1, tmp=1, tmp___2=29, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3637611e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4588cdf=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7273c668=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3858730f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9a7ed4e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26713e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f9c7bf8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2451651a=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 430]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L494] int pumpRunning = 0; [L495] int systemActive = 1; [L766] int waterLevel = 1; [L767] int methaneLevelCritical = 0; [L895] int cleanupTimeShifts = 4; [L968] int retValue_acc ; [L969] int tmp ; [L973] FCALL select_helpers() [L974] FCALL select_features() [L975] CALL, EXPR valid_product() [L747] int retValue_acc ; [L750] retValue_acc = 1 [L751] return (retValue_acc); [L975] RET, EXPR valid_product() [L975] tmp = valid_product() [L977] COND TRUE \read(tmp) [L979] FCALL setup() [L980] CALL runTest() [L962] CALL test() [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L473] CALL timeShift() [L502] COND FALSE !(\read(pumpRunning)) [L509] COND TRUE \read(systemActive) [L511] CALL processEnvironment() [L583] int tmp ; [L586] COND FALSE !(\read(pumpRunning)) [L601] CALL processEnvironment__wrappee__lowWaterSensor() [L557] int tmp ; [L560] COND FALSE !(\read(pumpRunning)) [L575] CALL processEnvironment__wrappee__highWaterSensor() [L531] int tmp ; [L534] COND TRUE ! pumpRunning [L536] CALL, EXPR isHighWaterLevel() [L680] int retValue_acc ; [L681] int tmp ; [L682] int tmp___0 ; [L686] CALL, EXPR isHighWaterSensorDry() [L846] int retValue_acc ; [L849] COND TRUE waterLevel < 2 [L850] retValue_acc = 1 [L851] return (retValue_acc); [L686] RET, EXPR isHighWaterSensorDry() [L686] tmp = isHighWaterSensorDry() [L688] COND TRUE \read(tmp) [L689] tmp___0 = 0 [L693] retValue_acc = tmp___0 [L694] return (retValue_acc); [L536] RET, EXPR isHighWaterLevel() [L536] tmp = isHighWaterLevel() [L538] COND FALSE !(\read(tmp)) [L544] FCALL processEnvironment__wrappee__base() [L575] RET processEnvironment__wrappee__highWaterSensor() [L601] RET processEnvironment__wrappee__lowWaterSensor() [L511] RET processEnvironment() [L517] CALL __utac_acc__Specification4_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L875] CALL, EXPR getWaterLevel() [L837] int retValue_acc ; [L840] retValue_acc = waterLevel [L841] return (retValue_acc); [L875] RET, EXPR getWaterLevel() [L875] tmp = getWaterLevel() [L877] COND FALSE !(tmp == 0) [L517] RET __utac_acc__Specification4_spec__1() [L473] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:04:03,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74cd3e7c-5e41-484f-8cec-91c5bd58a544/bin/uautomizer-DQz5hQGWxF/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)