./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G --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 aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:52:41,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:52:41,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:52:42,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:52:42,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:52:42,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:52:42,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:52:42,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:52:42,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:52:42,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:52:42,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:52:42,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:52:42,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:52:42,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:52:42,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:52:42,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:52:42,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:52:42,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:52:42,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:52:42,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:52:42,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:52:42,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:52:42,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:52:42,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:52:42,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:52:42,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:52:42,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:52:42,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:52:42,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:52:42,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:52:42,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:52:42,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:52:42,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:52:42,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:52:42,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:52:42,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:52:42,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:52:42,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:52:42,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:52:42,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:52:42,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:52:42,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-23 12:52:42,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:52:42,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:52:42,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:52:42,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:52:42,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:52:42,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:52:42,227 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:52:42,228 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 12:52:42,228 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 12:52:42,228 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 12:52:42,230 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 12:52:42,230 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 12:52:42,230 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 12:52:42,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:52:42,231 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:52:42,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 12:52:42,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:52:42,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:52:42,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:52:42,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 12:52:42,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 12:52:42,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 12:52:42,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:52:42,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:52:42,233 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 12:52:42,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:52:42,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 12:52:42,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:52:42,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:52:42,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:52:42,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:52:42,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:52:42,238 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 12:52:42,239 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_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2021-11-23 12:52:42,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:52:42,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:52:42,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:52:42,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:52:42,572 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:52:42,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2021-11-23 12:52:42,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/data/c939e3a98/8d85ac8b503d4faa9541823ed90bbfc0/FLAG197fff9dc [2021-11-23 12:52:43,297 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:52:43,297 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2021-11-23 12:52:43,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/data/c939e3a98/8d85ac8b503d4faa9541823ed90bbfc0/FLAG197fff9dc [2021-11-23 12:52:43,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/data/c939e3a98/8d85ac8b503d4faa9541823ed90bbfc0 [2021-11-23 12:52:43,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:52:43,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:52:43,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:52:43,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:52:43,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:52:43,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:52:43" (1/1) ... [2021-11-23 12:52:43,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524b6fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:43, skipping insertion in model container [2021-11-23 12:52:43,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:52:43" (1/1) ... [2021-11-23 12:52:43,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:52:43,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:52:43,823 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_69590bd7-fbe7-40ea-8351-57f380512977/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2021-11-23 12:52:44,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:52:44,090 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:52:44,105 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_69590bd7-fbe7-40ea-8351-57f380512977/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2021-11-23 12:52:44,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:52:44,210 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:52:44,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44 WrapperNode [2021-11-23 12:52:44,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:52:44,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:52:44,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:52:44,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:52:44,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,334 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 56, calls inlined = 102, statements flattened = 765 [2021-11-23 12:52:44,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:52:44,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:52:44,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:52:44,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:52:44,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:52:44,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:52:44,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:52:44,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:52:44,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (1/1) ... [2021-11-23 12:52:44,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 12:52:44,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:52:44,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 12:52:44,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 12:52:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:52:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:52:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:52:44,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:52:44,611 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:52:44,613 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:52:45,106 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:52:45,117 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:52:45,118 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 12:52:45,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:45 BoogieIcfgContainer [2021-11-23 12:52:45,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:52:45,122 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 12:52:45,122 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 12:52:45,126 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 12:52:45,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:52:45,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 12:52:43" (1/3) ... [2021-11-23 12:52:45,129 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e8c88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:52:45, skipping insertion in model container [2021-11-23 12:52:45,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:52:45,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:52:44" (2/3) ... [2021-11-23 12:52:45,130 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e8c88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 12:52:45, skipping insertion in model container [2021-11-23 12:52:45,130 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 12:52:45,130 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:45" (3/3) ... [2021-11-23 12:52:45,132 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2021-11-23 12:52:45,214 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 12:52:45,214 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 12:52:45,215 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 12:52:45,215 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 12:52:45,215 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 12:52:45,215 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 12:52:45,215 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 12:52:45,215 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 12:52:45,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 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) [2021-11-23 12:52:45,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-11-23 12:52:45,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:52:45,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:52:45,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:45,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:45,332 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 12:52:45,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 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) [2021-11-23 12:52:45,347 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-11-23 12:52:45,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:52:45,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:52:45,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:45,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:45,353 INFO L791 eck$LassoCheckResult]: Stem: 189#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 125#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 91#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 154#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 82#L92true main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 45#L186true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 66#L160true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 143#L682true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 94#L735-2true [2021-11-23 12:52:45,364 INFO L793 eck$LassoCheckResult]: Loop: 94#L735-2true assume !false; 121#L736true assume test_~splverifierCounter~0#1 < 4; 24#L737true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 51#L745true assume !(0 != test_~tmp~5#1); 185#L745-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 22#L755true assume !(0 != test_~tmp___0~1#1); 193#L755-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 162#L765true assume 0 != test_~tmp___2~0#1; 43#L771-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 7#L931true __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 122#L692true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 131#L802true assume !(0 != ~pumpRunning~0); 67#L802-2true assume !(0 != ~systemActive~0); 172#L809-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 111#L281true __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 13#L703true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 31#L703-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 129#L819true assume { :end_inline_timeShift } true; 94#L735-2true [2021-11-23 12:52:45,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-23 12:52:45,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:45,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947854595] [2021-11-23 12:52:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:45,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:45,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:45,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:45,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:45,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1354186772, now seen corresponding path program 1 times [2021-11-23 12:52:45,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:45,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753802232] [2021-11-23 12:52:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:45,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:45,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:45,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:45,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1601428117, now seen corresponding path program 1 times [2021-11-23 12:52:45,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:45,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472945786] [2021-11-23 12:52:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:45,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:45,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:45,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472945786] [2021-11-23 12:52:45,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472945786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:45,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:45,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:52:45,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893754007] [2021-11-23 12:52:45,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:45,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:46,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 12:52:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 12:52:46,036 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2021-11-23 12:52:46,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:52:46,132 INFO L93 Difference]: Finished difference Result 193 states and 251 transitions. [2021-11-23 12:52:46,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:52:46,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 251 transitions. [2021-11-23 12:52:46,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-11-23 12:52:46,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 183 states and 241 transitions. [2021-11-23 12:52:46,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2021-11-23 12:52:46,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-11-23 12:52:46,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 241 transitions. [2021-11-23 12:52:46,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:46,176 INFO L681 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-11-23 12:52:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 241 transitions. [2021-11-23 12:52:46,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-23 12:52:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.3169398907103824) internal successors, (241), 182 states have internal predecessors, (241), 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) [2021-11-23 12:52:46,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2021-11-23 12:52:46,222 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-11-23 12:52:46,222 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-11-23 12:52:46,222 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 12:52:46,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 241 transitions. [2021-11-23 12:52:46,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-11-23 12:52:46,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:52:46,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:52:46,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:46,237 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] [2021-11-23 12:52:46,238 INFO L791 eck$LassoCheckResult]: Stem: 588#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 500#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 501#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 548#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 549#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 526#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 527#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 535#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 507#L735-2 [2021-11-23 12:52:46,238 INFO L793 eck$LassoCheckResult]: Loop: 507#L735-2 assume !false; 492#L736 assume test_~splverifierCounter~0#1 < 4; 476#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 477#L745 assume !(0 != test_~tmp~5#1); 543#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 468#L755 assume !(0 != test_~tmp___0~1#1); 470#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 559#L765 assume 0 != test_~tmp___2~0#1; 524#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 424#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 425#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 494#L802 assume !(0 != ~pumpRunning~0); 514#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 561#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 583#L834-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 487#L826-3 assume { :end_inline_processEnvironment__wrappee__base } true; 410#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 411#L860-1 assume { :end_inline_processEnvironment } true; 578#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 455#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 441#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 443#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 506#L819 assume { :end_inline_timeShift } true; 507#L735-2 [2021-11-23 12:52:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-23 12:52:46,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:46,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249703499] [2021-11-23 12:52:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:46,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:46,303 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:46,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:46,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:46,329 INFO L85 PathProgramCache]: Analyzing trace with hash 909614489, now seen corresponding path program 1 times [2021-11-23 12:52:46,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:46,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272163578] [2021-11-23 12:52:46,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:46,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:46,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:46,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272163578] [2021-11-23 12:52:46,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272163578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:46,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:46,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:52:46,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585899110] [2021-11-23 12:52:46,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:46,353 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 12:52:46,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:46,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:52:46,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:52:46,355 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:52:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:52:46,447 INFO L93 Difference]: Finished difference Result 253 states and 321 transitions. [2021-11-23 12:52:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:52:46,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 253 states and 321 transitions. [2021-11-23 12:52:46,453 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2021-11-23 12:52:46,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 253 states to 253 states and 321 transitions. [2021-11-23 12:52:46,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2021-11-23 12:52:46,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2021-11-23 12:52:46,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 321 transitions. [2021-11-23 12:52:46,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:46,461 INFO L681 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-11-23 12:52:46,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 321 transitions. [2021-11-23 12:52:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-11-23 12:52:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.2687747035573123) internal successors, (321), 252 states have internal predecessors, (321), 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) [2021-11-23 12:52:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 321 transitions. [2021-11-23 12:52:46,479 INFO L704 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-11-23 12:52:46,479 INFO L587 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-11-23 12:52:46,480 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 12:52:46,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 321 transitions. [2021-11-23 12:52:46,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2021-11-23 12:52:46,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:52:46,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:52:46,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:46,484 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] [2021-11-23 12:52:46,485 INFO L791 eck$LassoCheckResult]: Stem: 1039#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 940#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 941#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 991#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 992#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 967#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 968#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 976#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 947#L735-2 [2021-11-23 12:52:46,485 INFO L793 eck$LassoCheckResult]: Loop: 947#L735-2 assume !false; 932#L736 assume test_~splverifierCounter~0#1 < 4; 916#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 917#L745 assume !(0 != test_~tmp~5#1); 985#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 909#L755 assume !(0 != test_~tmp___0~1#1); 911#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1006#L765 assume 0 != test_~tmp___2~0#1; 965#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 861#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 862#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 934#L802 assume !(0 != ~pumpRunning~0); 954#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1008#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1030#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 854#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 855#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 975#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 912#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 913#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1004#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 969#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 970#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1038#L860-1 assume { :end_inline_processEnvironment } true; 1101#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1100#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 881#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 883#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 946#L819 assume { :end_inline_timeShift } true; 947#L735-2 [2021-11-23 12:52:46,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:46,487 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-23 12:52:46,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:46,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870571124] [2021-11-23 12:52:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:46,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:46,506 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:46,580 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:46,599 INFO L85 PathProgramCache]: Analyzing trace with hash -92718639, now seen corresponding path program 1 times [2021-11-23 12:52:46,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243650224] [2021-11-23 12:52:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:46,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:52:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:52:46,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:52:46,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243650224] [2021-11-23 12:52:46,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243650224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:52:46,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:52:46,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 12:52:46,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255477707] [2021-11-23 12:52:46,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:52:46,712 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-23 12:52:46,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:52:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 12:52:46,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:52:46,713 INFO L87 Difference]: Start difference. First operand 253 states and 321 transitions. cyclomatic complexity: 70 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) [2021-11-23 12:52:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:52:46,935 INFO L93 Difference]: Finished difference Result 731 states and 911 transitions. [2021-11-23 12:52:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 12:52:46,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 731 states and 911 transitions. [2021-11-23 12:52:46,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 465 [2021-11-23 12:52:46,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 731 states to 731 states and 911 transitions. [2021-11-23 12:52:46,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 731 [2021-11-23 12:52:46,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 731 [2021-11-23 12:52:46,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 731 states and 911 transitions. [2021-11-23 12:52:46,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 12:52:46,970 INFO L681 BuchiCegarLoop]: Abstraction has 731 states and 911 transitions. [2021-11-23 12:52:46,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states and 911 transitions. [2021-11-23 12:52:47,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 496. [2021-11-23 12:52:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 496 states have (on average 1.2459677419354838) internal successors, (618), 495 states have internal predecessors, (618), 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) [2021-11-23 12:52:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 618 transitions. [2021-11-23 12:52:47,005 INFO L704 BuchiCegarLoop]: Abstraction has 496 states and 618 transitions. [2021-11-23 12:52:47,005 INFO L587 BuchiCegarLoop]: Abstraction has 496 states and 618 transitions. [2021-11-23 12:52:47,006 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-23 12:52:47,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 496 states and 618 transitions. [2021-11-23 12:52:47,010 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 346 [2021-11-23 12:52:47,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 12:52:47,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 12:52:47,012 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:52:47,012 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, 1, 1] [2021-11-23 12:52:47,012 INFO L791 eck$LassoCheckResult]: Stem: 2045#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(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1940#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1941#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1990#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1991#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 1967#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1968#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1975#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1947#L735-2 [2021-11-23 12:52:47,013 INFO L793 eck$LassoCheckResult]: Loop: 1947#L735-2 assume !false; 1932#L736 assume test_~splverifierCounter~0#1 < 4; 1916#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1917#L745 assume !(0 != test_~tmp~5#1); 1984#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1909#L755 assume !(0 != test_~tmp___0~1#1); 1911#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2007#L765 assume 0 != test_~tmp___2~0#1; 1965#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 1861#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 1862#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1934#L802 assume !(0 != ~pumpRunning~0); 1954#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2009#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2035#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1854#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1855#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1974#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1912#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1913#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2004#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1969#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1849#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1850#L860-1 assume { :end_inline_processEnvironment } true; 2028#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1896#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 1881#L703 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 1882#L931-1 __utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1; 1992#L707 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 1884#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1946#L819 assume { :end_inline_timeShift } true; 1947#L735-2 [2021-11-23 12:52:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-11-23 12:52:47,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:47,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011053188] [2021-11-23 12:52:47,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:47,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,029 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:47,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:47,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1072605420, now seen corresponding path program 1 times [2021-11-23 12:52:47,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:47,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3960304] [2021-11-23 12:52:47,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:47,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,055 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:47,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:52:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash 260565219, now seen corresponding path program 1 times [2021-11-23 12:52:47,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:52:47,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092381642] [2021-11-23 12:52:47,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:52:47,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:52:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,086 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:52:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:52:47,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:52:51,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 12:52:51 BoogieIcfgContainer [2021-11-23 12:52:51,661 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 12:52:51,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:52:51,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:52:51,662 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:52:51,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:52:45" (3/4) ... [2021-11-23 12:52:51,667 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 12:52:51,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 12:52:51,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:52:51,774 INFO L158 Benchmark]: Toolchain (without parser) took 8227.06ms. Allocated memory was 94.4MB in the beginning and 163.6MB in the end (delta: 69.2MB). Free memory was 69.9MB in the beginning and 75.1MB in the end (delta: -5.3MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,774 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:52:51,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.82ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 69.7MB in the beginning and 85.4MB in the end (delta: -15.7MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.73ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 81.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,776 INFO L158 Benchmark]: Boogie Preprocessor took 74.82ms. Allocated memory is still 121.6MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,777 INFO L158 Benchmark]: RCFGBuilder took 710.33ms. Allocated memory is still 121.6MB. Free memory was 79.1MB in the beginning and 55.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,777 INFO L158 Benchmark]: BuchiAutomizer took 6539.21ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 55.0MB in the beginning and 78.4MB in the end (delta: -23.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,778 INFO L158 Benchmark]: Witness Printer took 111.08ms. Allocated memory is still 163.6MB. Free memory was 78.4MB in the beginning and 75.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 12:52:51,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.82ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 69.7MB in the beginning and 85.4MB in the end (delta: -15.7MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.73ms. Allocated memory is still 121.6MB. Free memory was 85.4MB in the beginning and 81.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.82ms. Allocated memory is still 121.6MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.33ms. Allocated memory is still 121.6MB. Free memory was 79.1MB in the beginning and 55.0MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6539.21ms. Allocated memory was 121.6MB in the beginning and 163.6MB in the end (delta: 41.9MB). Free memory was 55.0MB in the beginning and 78.4MB in the end (delta: -23.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Witness Printer took 111.08ms. Allocated memory is still 163.6MB. Free memory was 78.4MB in the beginning and 75.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 496 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 235 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 496 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1726 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1726 mSDsluCounter, 1715 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 878 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 837 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 735]: 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, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@660263a6=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43f8332b=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bb9dfd4=0, tmp___0=0, retValue_acc=0, tmp=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b3c7352=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c2c30a3=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@758de131=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a8f1c62=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@479384ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58a1ecf6=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a38a86b=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ebebb86=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 735]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 12:52:51,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69590bd7-fbe7-40ea-8351-57f380512977/bin/uautomizer-wIGwrQj20G/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)