./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be --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 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:42:55,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:42:55,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:42:55,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:42:55,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:42:55,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:42:55,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:42:55,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:42:55,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:42:55,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:42:55,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:42:55,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:42:55,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:42:55,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:42:55,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:42:55,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:42:55,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:42:55,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:42:55,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:42:55,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:42:55,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:42:55,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:42:55,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:42:55,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:42:55,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:42:55,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:42:55,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:42:55,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:42:55,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:42:55,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:42:55,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:42:55,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:42:55,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:42:55,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:42:55,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:42:55,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:42:55,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:42:55,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:42:55,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:42:55,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:42:55,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:42:55,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:42:55,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:42:55,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:42:55,282 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:42:55,282 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:42:55,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:42:55,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:42:55,285 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:42:55,285 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:42:55,286 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:42:55,286 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:42:55,287 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:42:55,287 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:42:55,287 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:42:55,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:42:55,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:42:55,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:42:55,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:42:55,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:42:55,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:42:55,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:42:55,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:42:55,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:42:55,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:42:55,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:42:55,293 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:42:55,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:42:55,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:42:55,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:42:55,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:42:55,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:42:55,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:42:55,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:42:55,298 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:42:55,298 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_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4074665f53184e0f9778b3e4e6ee9c58d8a047121518f9c126ceccd876afea36 [2021-10-21 19:42:55,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:42:55,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:42:55,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:42:55,675 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:42:55,676 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:42:55,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2021-10-21 19:42:55,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/data/1b5fe875f/0d1060d0acd641649d48dda7cdf4e044/FLAG7505ecc3f [2021-10-21 19:42:56,390 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:42:56,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c [2021-10-21 19:42:56,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/data/1b5fe875f/0d1060d0acd641649d48dda7cdf4e044/FLAG7505ecc3f [2021-10-21 19:42:56,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/data/1b5fe875f/0d1060d0acd641649d48dda7cdf4e044 [2021-10-21 19:42:56,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:42:56,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:42:56,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:42:56,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:42:56,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:42:56,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:42:56" (1/1) ... [2021-10-21 19:42:56,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e4bcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:56, skipping insertion in model container [2021-10-21 19:42:56,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:42:56" (1/1) ... [2021-10-21 19:42:56,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:42:56,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:42:57,071 WARN L228 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_36117aeb-0edd-469e-8c81-1b700bc9f39c/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2021-10-21 19:42:57,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:42:57,176 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:42:57,272 WARN L228 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_36117aeb-0edd-469e-8c81-1b700bc9f39c/sv-benchmarks/c/product-lines/minepump_spec5_product52.cil.c[12672,12685] [2021-10-21 19:42:57,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:42:57,349 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:42:57,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57 WrapperNode [2021-10-21 19:42:57,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:42:57,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:42:57,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:42:57,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:42:57,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:42:57,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:42:57,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:42:57,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:42:57,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:42:57,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:42:57,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:42:57,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:42:57,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (1/1) ... [2021-10-21 19:42:57,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:42:57,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:42:57,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:42:57,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:42:57,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:42:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:42:57,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:42:57,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:42:58,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:42:58,509 INFO L299 CfgBuilder]: Removed 176 assume(true) statements. [2021-10-21 19:42:58,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:42:58 BoogieIcfgContainer [2021-10-21 19:42:58,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:42:58,515 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:42:58,515 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:42:58,519 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:42:58,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:42:58,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:42:56" (1/3) ... [2021-10-21 19:42:58,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2713e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:42:58, skipping insertion in model container [2021-10-21 19:42:58,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:42:58,522 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:42:57" (2/3) ... [2021-10-21 19:42:58,523 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2713e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:42:58, skipping insertion in model container [2021-10-21 19:42:58,524 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:42:58,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:42:58" (3/3) ... [2021-10-21 19:42:58,526 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product52.cil.c [2021-10-21 19:42:58,589 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:42:58,589 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:42:58,589 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:42:58,589 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:42:58,590 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:42:58,590 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:42:58,590 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:42:58,590 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:42:58,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 124 states have internal predecessors, (189), 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) [2021-10-21 19:42:58,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-21 19:42:58,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:58,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:58,671 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:58,672 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:58,672 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:42:58,672 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 124 states have internal predecessors, (189), 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) [2021-10-21 19:42:58,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-21 19:42:58,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:58,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:58,681 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:58,681 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:58,687 INFO L791 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 45#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 100#L1008true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 19#L1016true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 39#L508true assume 0 != main_~tmp~3; 70#L479true ~switchedOnBeforeTS~0 := 0; 56#L539true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 106#L560-1true [2021-10-21 19:42:58,687 INFO L793 eck$LassoCheckResult]: Loop: 106#L560-1true assume !false; 18#L703true assume test_~splverifierCounter~0 < 4; 60#L704true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 67#L712true assume !(0 != test_~tmp~5); 75#L712-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 65#L722true assume !(0 != test_~tmp___0~1); 44#L722-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 35#L732true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 114#L740-1true havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 33#L884true __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 53#L549true assume !(0 != ~pumpRunning~0); 51#L773true assume !(0 != ~systemActive~0); 6#L780true havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 52#L662true __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 27#L560true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 106#L560-1true [2021-10-21 19:42:58,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:58,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:42:58,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:58,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306588403] [2021-10-21 19:42:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:58,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:59,002 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:59,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:59,161 INFO L82 PathProgramCache]: Analyzing trace with hash 677042294, now seen corresponding path program 1 times [2021-10-21 19:42:59,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:59,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530809563] [2021-10-21 19:42:59,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:59,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:59,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:59,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530809563] [2021-10-21 19:42:59,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530809563] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:59,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:59,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:42:59,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826248562] [2021-10-21 19:42:59,231 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:42:59,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:59,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:42:59,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:42:59,288 INFO L87 Difference]: Start difference. First operand has 125 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 124 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 19:42:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:59,396 INFO L93 Difference]: Finished difference Result 243 states and 353 transitions. [2021-10-21 19:42:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:42:59,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 353 transitions. [2021-10-21 19:42:59,410 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2021-10-21 19:42:59,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 229 states and 338 transitions. [2021-10-21 19:42:59,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 229 [2021-10-21 19:42:59,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 229 [2021-10-21 19:42:59,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 229 states and 338 transitions. [2021-10-21 19:42:59,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:42:59,424 INFO L681 BuchiCegarLoop]: Abstraction has 229 states and 338 transitions. [2021-10-21 19:42:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states and 338 transitions. [2021-10-21 19:42:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2021-10-21 19:42:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 227 states have (on average 1.475770925110132) internal successors, (335), 226 states have internal predecessors, (335), 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) [2021-10-21 19:42:59,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 335 transitions. [2021-10-21 19:42:59,485 INFO L704 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2021-10-21 19:42:59,485 INFO L587 BuchiCegarLoop]: Abstraction has 227 states and 335 transitions. [2021-10-21 19:42:59,485 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:42:59,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 227 states and 335 transitions. [2021-10-21 19:42:59,494 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2021-10-21 19:42:59,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:59,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:59,497 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:59,497 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:59,497 INFO L791 eck$LassoCheckResult]: Stem: 508#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 446#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 447#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 409#L1016 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 410#L508 assume 0 != main_~tmp~3; 438#L479 ~switchedOnBeforeTS~0 := 0; 461#L539 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 462#L560-1 [2021-10-21 19:42:59,499 INFO L793 eck$LassoCheckResult]: Loop: 462#L560-1 assume !false; 406#L703 assume test_~splverifierCounter~0 < 4; 407#L704 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 595#L712 assume !(0 != test_~tmp~5); 593#L712-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 592#L722 assume !(0 != test_~tmp___0~1); 590#L722-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 588#L732 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 435#L740-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 584#L884 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 582#L549 assume !(0 != ~pumpRunning~0); 581#L773 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 579#L831 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 577#L805-1 assume !(0 == ~pumpRunning~0); 571#L780 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 570#L662 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 568#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 462#L560-1 [2021-10-21 19:42:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:59,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:42:59,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:59,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915788493] [2021-10-21 19:42:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:59,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:59,598 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:42:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:59,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:42:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:59,664 INFO L82 PathProgramCache]: Analyzing trace with hash -543108204, now seen corresponding path program 1 times [2021-10-21 19:42:59,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:59,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601236831] [2021-10-21 19:42:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:59,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:42:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:59,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:59,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601236831] [2021-10-21 19:42:59,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601236831] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:42:59,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:42:59,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:42:59,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711032833] [2021-10-21 19:42:59,685 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:42:59,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:59,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:42:59,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:42:59,694 INFO L87 Difference]: Start difference. First operand 227 states and 335 transitions. cyclomatic complexity: 111 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:42:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:59,850 INFO L93 Difference]: Finished difference Result 326 states and 457 transitions. [2021-10-21 19:42:59,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:42:59,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 457 transitions. [2021-10-21 19:42:59,856 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-10-21 19:42:59,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 326 states and 457 transitions. [2021-10-21 19:42:59,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 326 [2021-10-21 19:42:59,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 326 [2021-10-21 19:42:59,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 326 states and 457 transitions. [2021-10-21 19:42:59,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:42:59,868 INFO L681 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2021-10-21 19:42:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states and 457 transitions. [2021-10-21 19:42:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2021-10-21 19:42:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 326 states have (on average 1.401840490797546) internal successors, (457), 325 states have internal predecessors, (457), 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) [2021-10-21 19:42:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 457 transitions. [2021-10-21 19:42:59,911 INFO L704 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2021-10-21 19:42:59,911 INFO L587 BuchiCegarLoop]: Abstraction has 326 states and 457 transitions. [2021-10-21 19:42:59,911 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:42:59,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 457 transitions. [2021-10-21 19:42:59,914 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-10-21 19:42:59,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:42:59,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:42:59,916 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:42:59,917 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] [2021-10-21 19:42:59,917 INFO L791 eck$LassoCheckResult]: Stem: 1060#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1005#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1006#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 968#L1016 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 969#L508 assume 0 != main_~tmp~3; 998#L479 ~switchedOnBeforeTS~0 := 0; 1018#L539 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 972#L560-1 [2021-10-21 19:42:59,918 INFO L793 eck$LassoCheckResult]: Loop: 972#L560-1 assume !false; 965#L703 assume test_~splverifierCounter~0 < 4; 966#L704 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 1022#L712 assume !(0 != test_~tmp~5); 1024#L712-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 1027#L722 assume !(0 != test_~tmp___0~1); 1004#L722-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 992#L732 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 994#L740-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 988#L884 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 989#L549 assume !(0 != ~pumpRunning~0); 1011#L773 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1012#L831 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1050#L805-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1039#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1040#L675-1 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 1037#L933-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 1038#L933-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 978#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 979#L809-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 940#L780 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 941#L662 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 981#L560 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 972#L560-1 [2021-10-21 19:42:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:42:59,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:42:59,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:42:59,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635323277] [2021-10-21 19:42:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:42:59,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:42:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:42:59,993 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:00,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:00,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1971117568, now seen corresponding path program 1 times [2021-10-21 19:43:00,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:00,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150464948] [2021-10-21 19:43:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:00,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:43:00,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:43:00,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150464948] [2021-10-21 19:43:00,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150464948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:43:00,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:43:00,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 19:43:00,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568836514] [2021-10-21 19:43:00,130 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:43:00,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:43:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:43:00,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:43:00,131 INFO L87 Difference]: Start difference. First operand 326 states and 457 transitions. cyclomatic complexity: 134 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:43:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:43:00,379 INFO L93 Difference]: Finished difference Result 1391 states and 1967 transitions. [2021-10-21 19:43:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:43:00,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1391 states and 1967 transitions. [2021-10-21 19:43:00,398 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 974 [2021-10-21 19:43:00,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1391 states to 1391 states and 1967 transitions. [2021-10-21 19:43:00,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1391 [2021-10-21 19:43:00,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1391 [2021-10-21 19:43:00,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1391 states and 1967 transitions. [2021-10-21 19:43:00,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:43:00,427 INFO L681 BuchiCegarLoop]: Abstraction has 1391 states and 1967 transitions. [2021-10-21 19:43:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states and 1967 transitions. [2021-10-21 19:43:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 639. [2021-10-21 19:43:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 639 states have (on average 1.381846635367762) internal successors, (883), 638 states have internal predecessors, (883), 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) [2021-10-21 19:43:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 883 transitions. [2021-10-21 19:43:00,466 INFO L704 BuchiCegarLoop]: Abstraction has 639 states and 883 transitions. [2021-10-21 19:43:00,466 INFO L587 BuchiCegarLoop]: Abstraction has 639 states and 883 transitions. [2021-10-21 19:43:00,466 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:43:00,466 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 639 states and 883 transitions. [2021-10-21 19:43:00,472 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 458 [2021-10-21 19:43:00,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:43:00,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:43:00,475 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:00,475 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] [2021-10-21 19:43:00,476 INFO L791 eck$LassoCheckResult]: Stem: 2826#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2746#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 2747#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 2705#L1016 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 2706#L508 assume 0 != main_~tmp~3; 2738#L479 ~switchedOnBeforeTS~0 := 0; 2764#L539 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2765#L560-1 [2021-10-21 19:43:00,476 INFO L793 eck$LassoCheckResult]: Loop: 2765#L560-1 assume !false; 3030#L703 assume test_~splverifierCounter~0 < 4; 3029#L704 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 3028#L712 assume !(0 != test_~tmp~5); 3026#L712-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 3009#L722 assume !(0 != test_~tmp___0~1); 3005#L722-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 3000#L732 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3002#L740-1 havoc __utac_acc__Specification5_spec__2_#t~ret43;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 3004#L884 __utac_acc__Specification5_spec__2_#t~ret43 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret43;havoc __utac_acc__Specification5_spec__2_#t~ret43; 2981#L549 assume !(0 != ~pumpRunning~0); 2980#L773 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2950#L831 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2947#L805-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret79, isHighWaterLevel_~retValue_acc~10, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~10;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2945#L670-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2941#L675-1 isHighWaterLevel_#t~ret79 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret79;havoc isHighWaterLevel_#t~ret79; 2937#L933-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~2 := 0; 2933#L933-5 isHighWaterLevel_~retValue_acc~10 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~10; 2930#L939-1 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 2901#L809-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2902#L780 havoc __utac_acc__Specification5_spec__3_#t~ret44, __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 3036#L662 __utac_acc__Specification5_spec__3_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret44;havoc __utac_acc__Specification5_spec__3_#t~ret44; 3035#L560 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~9;havoc isPumpRunning_~retValue_acc~9;isPumpRunning_~retValue_acc~9 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~9; 3034#L884-1 __utac_acc__Specification5_spec__3_#t~ret45 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 3033#L564 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 2765#L560-1 [2021-10-21 19:43:00,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-21 19:43:00,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:00,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869708506] [2021-10-21 19:43:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:00,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,552 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,631 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:00,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:00,632 INFO L82 PathProgramCache]: Analyzing trace with hash -163417157, now seen corresponding path program 1 times [2021-10-21 19:43:00,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:00,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196661767] [2021-10-21 19:43:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:00,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,644 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash -226843339, now seen corresponding path program 1 times [2021-10-21 19:43:00,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:00,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274732601] [2021-10-21 19:43:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:00,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,722 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:00,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:07,015 WARN L207 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:45:13,645 WARN L207 SmtUtils]: Spent 32.93 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:45:13,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:45:13 BoogieIcfgContainer [2021-10-21 19:45:13,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:45:13,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:45:13,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:45:13,899 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:45:13,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:42:58" (3/4) ... [2021-10-21 19:45:13,903 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:45:14,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:45:14,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:45:14,056 INFO L168 Benchmark]: Toolchain (without parser) took 137365.73 ms. Allocated memory was 96.5 MB in the beginning and 157.3 MB in the end (delta: 60.8 MB). Free memory was 65.9 MB in the beginning and 37.7 MB in the end (delta: 28.2 MB). Peak memory consumption was 89.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,057 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:14,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.92 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 84.5 MB in the end (delta: -18.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 117.4 MB. Free memory was 84.5 MB in the beginning and 80.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,059 INFO L168 Benchmark]: Boogie Preprocessor took 53.32 ms. Allocated memory is still 117.4 MB. Free memory was 80.8 MB in the beginning and 78.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,059 INFO L168 Benchmark]: RCFGBuilder took 1011.31 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 76.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,060 INFO L168 Benchmark]: BuchiAutomizer took 135383.18 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 75.6 MB in the beginning and 40.8 MB in the end (delta: 34.9 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,061 INFO L168 Benchmark]: Witness Printer took 156.02 ms. Allocated memory is still 157.3 MB. Free memory was 40.8 MB in the beginning and 37.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:14,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 658.92 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.6 MB in the beginning and 84.5 MB in the end (delta: -18.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.15 ms. Allocated memory is still 117.4 MB. Free memory was 84.5 MB in the beginning and 80.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.32 ms. Allocated memory is still 117.4 MB. Free memory was 80.8 MB in the beginning and 78.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1011.31 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 76.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135383.18 ms. Allocated memory was 117.4 MB in the beginning and 157.3 MB in the end (delta: 39.8 MB). Free memory was 75.6 MB in the beginning and 40.8 MB in the end (delta: 34.9 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. * Witness Printer took 156.02 ms. Allocated memory is still 157.3 MB. Free memory was 40.8 MB in the beginning and 37.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 639 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 134.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 128.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 754 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 639 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 658 SDtfs, 1052 SDslu, 1097 SDs, 0 SdLazy, 197 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 257.8ms Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 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: 702]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aeeb9d0=0, NULL=0, NULL=0, NULL=2397, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a61fff0=0, NULL=1, NULL=2399, retValue_acc=1, methaneLevelCritical=0, tmp=0, NULL=0, NULL=2404, tmp___1=0, NULL=2392, NULL=0, NULL=2398, NULL=2405, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=2395, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp=1, NULL=2403, tmp___0=0, NULL=2414, retValue_acc=1, NULL=2400, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34ab3799=0, head=0, NULL=0, NULL=0, NULL=2412, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53640bda=0, NULL=0, retValue_acc=0, NULL=2408, NULL=2409, NULL=2393, tmp___0=0, NULL=2390, tmp=1, NULL=0, NULL=0, NULL=2410, NULL=2413, switchedOnBeforeTS=0, NULL=2415, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4791ce33=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@289173=0, NULL=2391, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5df29607=0, \result=0, NULL=2396, NULL=0, NULL=0, NULL=2418, tmp___0=0, NULL=2406, \result=0, NULL=2407, NULL=0, NULL=2401, NULL=2416, tmp___2=74, splverifierCounter=0, NULL=0, NULL=2411, NULL=2417, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6188fc7c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d174c49=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@579f14f5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e82d60b=0, retValue_acc=0, NULL=2402} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int switchedOnBeforeTS ; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; [L499] int retValue_acc ; [L500] int tmp ; [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L538] switchedOnBeforeTS = 0 [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L981] systemActive = 1 [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L547] switchedOnBeforeTS = isPumpRunning() [L773] COND FALSE !(\read(pumpRunning)) [L780] COND TRUE \read(systemActive) [L828] int tmp ; [L831] COND FALSE !(\read(pumpRunning)) [L802] int tmp ; [L805] COND TRUE ! pumpRunning [L925] int retValue_acc ; [L926] int tmp ; [L927] int tmp___0 ; [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L931] tmp = isHighWaterSensorDry() [L933] COND TRUE \read(tmp) [L934] tmp___0 = 0 [L938] retValue_acc = tmp___0 [L939] return (retValue_acc); [L807] tmp = isHighWaterLevel() [L809] COND FALSE !(\read(tmp)) [L553] int tmp ; [L554] int tmp___0 ; [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L558] tmp = getWaterLevel() [L560] COND TRUE tmp != 2 [L880] int retValue_acc ; [L883] retValue_acc = pumpRunning [L884] return (retValue_acc); [L562] tmp___0 = isPumpRunning() [L564] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:45:14,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36117aeb-0edd-469e-8c81-1b700bc9f39c/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...