./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt --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 fed47f8471b5c81afa3edb58ddb4d4213a39ce3e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-4e77c04 [2021-10-13 01:03:47,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:03:47,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:03:47,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:03:47,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:03:47,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:03:47,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:03:47,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:03:47,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:03:47,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:03:47,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:03:47,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:03:47,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:03:47,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:03:47,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:03:47,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:03:47,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:03:47,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:03:47,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:03:47,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:03:47,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:03:47,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:03:47,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:03:47,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:03:47,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:03:47,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:03:47,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:03:47,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:03:47,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:03:47,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:03:47,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:03:47,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:03:47,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:03:47,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:03:47,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:03:47,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:03:47,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:03:47,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:03:47,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:03:47,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:03:47,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:03:47,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:03:47,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:03:47,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:03:47,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:03:47,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:03:47,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:03:47,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:03:47,449 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:03:47,449 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:03:47,449 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:03:47,450 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:03:47,451 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:03:47,452 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:03:47,452 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:03:47,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:03:47,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:03:47,453 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:03:47,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:03:47,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:03:47,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:03:47,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:03:47,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:03:47,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:03:47,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:03:47,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:03:47,456 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:03:47,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:03:47,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:03:47,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:03:47,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:03:47,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:03:47,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:03:47,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:03:47,461 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:03:47,462 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_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fed47f8471b5c81afa3edb58ddb4d4213a39ce3e [2021-10-13 01:03:47,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:03:47,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:03:47,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:03:47,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:03:47,907 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:03:47,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2021-10-13 01:03:48,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/data/d46ca9467/561a78064f19415ca23c87b2a2f9f2b2/FLAG3faefe930 [2021-10-13 01:03:48,772 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:03:48,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2021-10-13 01:03:48,814 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/data/d46ca9467/561a78064f19415ca23c87b2a2f9f2b2/FLAG3faefe930 [2021-10-13 01:03:49,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/data/d46ca9467/561a78064f19415ca23c87b2a2f9f2b2 [2021-10-13 01:03:49,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:03:49,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:03:49,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:03:49,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:03:49,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:03:49,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661342f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49, skipping insertion in model container [2021-10-13 01:03:49,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:03:49,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:03:49,383 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_637fd64d-a655-45ba-9823-c9a65a0ea646/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c[1281,1294] [2021-10-13 01:03:49,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:03:49,634 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:03:49,665 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_637fd64d-a655-45ba-9823-c9a65a0ea646/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c[1281,1294] [2021-10-13 01:03:49,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:03:49,812 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:03:49,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49 WrapperNode [2021-10-13 01:03:49,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:03:49,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:03:49,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:03:49,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:03:49,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:03:49,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:03:49,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:03:49,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:03:49,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:49,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:50,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:50,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:50,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:50,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:03:50,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:03:50,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:03:50,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:03:50,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (1/1) ... [2021-10-13 01:03:50,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:03:50,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:03:50,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:03:50,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:03:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:03:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:03:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:03:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:03:51,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:03:51,416 INFO L299 CfgBuilder]: Removed 198 assume(true) statements. [2021-10-13 01:03:51,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:03:51 BoogieIcfgContainer [2021-10-13 01:03:51,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:03:51,421 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:03:51,421 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:03:51,425 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:03:51,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:03:51,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:03:49" (1/3) ... [2021-10-13 01:03:51,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62ee7e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:03:51, skipping insertion in model container [2021-10-13 01:03:51,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:03:51,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:03:49" (2/3) ... [2021-10-13 01:03:51,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62ee7e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:03:51, skipping insertion in model container [2021-10-13 01:03:51,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:03:51,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:03:51" (3/3) ... [2021-10-13 01:03:51,444 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2021-10-13 01:03:51,529 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:03:51,530 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:03:51,530 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:03:51,530 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:03:51,530 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:03:51,530 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:03:51,531 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:03:51,531 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:03:51,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5190839694656488) internal successors, (199), 131 states have internal predecessors, (199), 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) [2021-10-13 01:03:51,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-13 01:03:51,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:03:51,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:03:51,676 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:51,676 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:51,677 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:03:51,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5190839694656488) internal successors, (199), 131 states have internal predecessors, (199), 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) [2021-10-13 01:03:51,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-13 01:03:51,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:03:51,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:03:51,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:51,707 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:51,721 INFO L791 eck$LassoCheckResult]: Stem: 115#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 42#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 64#L76true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 114#L84true main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 53#L584true assume 0 != main_~tmp~4; 48#L559true ~methAndRunningLastTime~0 := 0; 43#L463true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 18#L474-1true [2021-10-13 01:03:51,722 INFO L793 eck$LassoCheckResult]: Loop: 18#L474-1true assume !false; 120#L920true assume test_~splverifierCounter~0 < 4; 103#L921true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 70#L929true assume !(0 != test_~tmp~9); 111#L929-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 132#L939true assume !(0 != test_~tmp___0~2); 25#L939-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 44#L949true assume 0 != test_~tmp___2~0; 96#L955-1true assume !(0 != ~pumpRunning~0); 104#L706true assume !(0 != ~systemActive~0); 95#L713true havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 14#L645-3true __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 57#L474true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 18#L474-1true [2021-10-13 01:03:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:51,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 01:03:51,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:51,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022731753] [2021-10-13 01:03:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:51,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:52,142 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:52,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:03:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:52,372 INFO L82 PathProgramCache]: Analyzing trace with hash 13558355, now seen corresponding path program 1 times [2021-10-13 01:03:52,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:52,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854832563] [2021-10-13 01:03:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:52,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:52,383 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:52,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:03:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:52,415 INFO L82 PathProgramCache]: Analyzing trace with hash 846854861, now seen corresponding path program 1 times [2021-10-13 01:03:52,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:52,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729105867] [2021-10-13 01:03:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:52,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:03:52,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:03:52,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:03:52,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729105867] [2021-10-13 01:03:52,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729105867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:03:52,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:03:52,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:03:52,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611135402] [2021-10-13 01:03:52,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:03:52,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:03:52,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:03:52,889 INFO L87 Difference]: Start difference. First operand has 132 states, 131 states have (on average 1.5190839694656488) internal successors, (199), 131 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-13 01:03:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:03:53,257 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2021-10-13 01:03:53,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:03:53,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 445 transitions. [2021-10-13 01:03:53,275 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 199 [2021-10-13 01:03:53,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 289 states and 424 transitions. [2021-10-13 01:03:53,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 289 [2021-10-13 01:03:53,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 289 [2021-10-13 01:03:53,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 289 states and 424 transitions. [2021-10-13 01:03:53,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:03:53,307 INFO L681 BuchiCegarLoop]: Abstraction has 289 states and 424 transitions. [2021-10-13 01:03:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states and 424 transitions. [2021-10-13 01:03:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 169. [2021-10-13 01:03:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 169 states have (on average 1.4615384615384615) internal successors, (247), 168 states have internal predecessors, (247), 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) [2021-10-13 01:03:53,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 247 transitions. [2021-10-13 01:03:53,356 INFO L704 BuchiCegarLoop]: Abstraction has 169 states and 247 transitions. [2021-10-13 01:03:53,356 INFO L587 BuchiCegarLoop]: Abstraction has 169 states and 247 transitions. [2021-10-13 01:03:53,356 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:03:53,356 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 169 states and 247 transitions. [2021-10-13 01:03:53,360 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 116 [2021-10-13 01:03:53,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:03:53,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:03:53,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:53,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:53,361 INFO L791 eck$LassoCheckResult]: Stem: 582#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 523#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 524#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 548#L84 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 535#L584 assume 0 != main_~tmp~4; 531#L559 ~methAndRunningLastTime~0 := 0; 525#L463 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 488#L474-1 [2021-10-13 01:03:53,362 INFO L793 eck$LassoCheckResult]: Loop: 488#L474-1 assume !false; 489#L920 assume test_~splverifierCounter~0 < 4; 576#L921 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 554#L929 assume !(0 != test_~tmp~9); 537#L929-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 580#L939 assume !(0 != test_~tmp___0~2); 499#L939-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 500#L949 assume 0 != test_~tmp___2~0; 527#L955-1 assume !(0 != ~pumpRunning~0); 551#L706 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 577#L764 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 516#L738-1 assume !(0 == ~pumpRunning~0); 469#L713 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 482#L645-3 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 483#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 488#L474-1 [2021-10-13 01:03:53,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:53,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 01:03:53,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:53,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090049327] [2021-10-13 01:03:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:53,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:53,515 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:53,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:03:53,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:53,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1359357845, now seen corresponding path program 1 times [2021-10-13 01:03:53,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:53,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551416413] [2021-10-13 01:03:53,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:53,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:03:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:03:53,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:03:53,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551416413] [2021-10-13 01:03:53,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551416413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:03:53,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:03:53,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:03:53,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322457138] [2021-10-13 01:03:53,709 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:03:53,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:03:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:03:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:03:53,712 INFO L87 Difference]: Start difference. First operand 169 states and 247 transitions. cyclomatic complexity: 81 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) [2021-10-13 01:03:53,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:03:53,837 INFO L93 Difference]: Finished difference Result 211 states and 293 transitions. [2021-10-13 01:03:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:03:53,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 293 transitions. [2021-10-13 01:03:53,844 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-10-13 01:03:53,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 293 transitions. [2021-10-13 01:03:53,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2021-10-13 01:03:53,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2021-10-13 01:03:53,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 293 transitions. [2021-10-13 01:03:53,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:03:53,860 INFO L681 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2021-10-13 01:03:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 293 transitions. [2021-10-13 01:03:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-13 01:03:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3886255924170616) internal successors, (293), 210 states have internal predecessors, (293), 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) [2021-10-13 01:03:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 293 transitions. [2021-10-13 01:03:53,885 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2021-10-13 01:03:53,885 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 293 transitions. [2021-10-13 01:03:53,886 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:03:53,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 293 transitions. [2021-10-13 01:03:53,890 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 148 [2021-10-13 01:03:53,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:03:53,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:03:53,897 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:03:53,898 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] [2021-10-13 01:03:53,898 INFO L791 eck$LassoCheckResult]: Stem: 981#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 914#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 915#L76 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 940#L84 main_#t~ret45 := valid_product_#res;main_~tmp~4 := main_#t~ret45;havoc main_#t~ret45; 927#L584 assume 0 != main_~tmp~4; 922#L559 ~methAndRunningLastTime~0 := 0; 916#L463 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 875#L474-1 [2021-10-13 01:03:53,898 INFO L793 eck$LassoCheckResult]: Loop: 875#L474-1 assume !false; 876#L920 assume test_~splverifierCounter~0 < 4; 973#L921 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 946#L929 assume !(0 != test_~tmp~9); 929#L929-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 978#L939 assume !(0 != test_~tmp___0~2); 888#L939-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 889#L949 assume 0 != test_~tmp___2~0; 918#L955-1 assume !(0 != ~pumpRunning~0); 969#L706 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 974#L764 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 906#L738-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 907#L685-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 866#L690-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 867#L883-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 896#L883-5 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 850#L889-1 processEnvironment__wrappee__methaneQuery_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret56;havoc processEnvironment__wrappee__methaneQuery_#t~ret56; 851#L742-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 855#L713 havoc __utac_acc__Specification2_spec__2_#t~ret43, __utac_acc__Specification2_spec__2_#t~ret44, __utac_acc__Specification2_spec__2_~tmp~3, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~3;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 868#L645-3 __utac_acc__Specification2_spec__2_#t~ret43 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~3 := __utac_acc__Specification2_spec__2_#t~ret43;havoc __utac_acc__Specification2_spec__2_#t~ret43; 869#L474 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~3);~methAndRunningLastTime~0 := 0; 875#L474-1 [2021-10-13 01:03:53,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:53,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 01:03:53,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:53,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249617005] [2021-10-13 01:03:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:53,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:53,967 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:54,076 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:03:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:54,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1072211743, now seen corresponding path program 1 times [2021-10-13 01:03:54,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:54,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295089530] [2021-10-13 01:03:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:54,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:54,092 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:54,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:03:54,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:03:54,110 INFO L82 PathProgramCache]: Analyzing trace with hash 700929883, now seen corresponding path program 1 times [2021-10-13 01:03:54,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:03:54,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2691206] [2021-10-13 01:03:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:03:54,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:03:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:54,189 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:03:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:03:54,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:10,562 WARN L207 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:06:27,691 WARN L207 SmtUtils]: Spent 37.10 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:06:27,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:06:27 BoogieIcfgContainer [2021-10-13 01:06:27,973 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:06:27,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:06:27,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:06:27,974 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:06:27,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:03:51" (3/4) ... [2021-10-13 01:06:27,978 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:06:28,055 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:06:28,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:06:28,060 INFO L168 Benchmark]: Toolchain (without parser) took 159049.67 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 65.6 MB in the beginning and 82.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,063 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:06:28,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.22 ms. Allocated memory is still 100.7 MB. Free memory was 65.4 MB in the beginning and 66.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,064 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.04 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 62.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,065 INFO L168 Benchmark]: Boogie Preprocessor took 105.61 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 59.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,065 INFO L168 Benchmark]: RCFGBuilder took 1353.48 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.9 MB in the beginning and 64.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,066 INFO L168 Benchmark]: BuchiAutomizer took 156552.60 ms. Allocated memory was 121.6 MB in the beginning and 159.4 MB in the end (delta: 37.7 MB). Free memory was 64.2 MB in the beginning and 84.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,066 INFO L168 Benchmark]: Witness Printer took 84.37 ms. Allocated memory is still 159.4 MB. Free memory was 84.6 MB in the beginning and 82.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:28,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 802.22 ms. Allocated memory is still 100.7 MB. Free memory was 65.4 MB in the beginning and 66.7 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 144.04 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 62.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.61 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 59.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1353.48 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.9 MB in the beginning and 64.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 156552.60 ms. Allocated memory was 121.6 MB in the beginning and 159.4 MB in the end (delta: 37.7 MB). Free memory was 64.2 MB in the beginning and 84.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. * Witness Printer took 84.37 ms. Allocated memory is still 159.4 MB. Free memory was 84.6 MB in the beginning and 82.6 MB in the end (delta: 2.1 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 156.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 155.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 59.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 120 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 211 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 354 SDtfs, 1034 SDslu, 803 SDs, 0 SdLazy, 69 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 295.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 919]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11354} State at position 1 is {NULL=0, NULL=11372, NULL=0, NULL=11354, NULL=11358, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38acde8b=0, NULL=0, tmp___1=0, tmp=0, NULL=11356, NULL=0, NULL=11363, NULL=11368, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34800b9b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3df4fb3d=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, \result=1, NULL=11376, NULL=0, retValue_acc=0, NULL=11379, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=11380, NULL=11367, methAndRunningLastTime=0, NULL=11360, head=0, NULL=0, NULL=0, tmp=0, NULL=11375, NULL=0, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75389177=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e3b4950=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=11361, NULL=11366, NULL=11373, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@139285ca=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=11382, NULL=11355, NULL=11362, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31cd1de7=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@519c0c7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14eda9ca=0, NULL=0, NULL=0, systemActive=1, NULL=11359, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4df299dc=0, retValue_acc=0, \result=0, NULL=11371, NULL=0, NULL=0, NULL=11369, NULL=11364, \result=0, NULL=0, NULL=11357, tmp___0=0, NULL=11381, NULL=11370, retValue_acc=1, tmp___2=64, splverifierCounter=0, NULL=0, \result=0, NULL=11374, NULL=11377, tmp=0, NULL=11365, NULL=11378} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L457] int methAndRunningLastTime ; [L496] int cleanupTimeShifts = 4; [L602] int waterLevel = 1; [L603] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; [L575] int retValue_acc ; [L576] int tmp ; [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L582] tmp = valid_product() [L584] COND TRUE \read(tmp) [L462] methAndRunningLastTime = 0 [L910] int splverifierCounter ; [L911] int tmp ; [L912] int tmp___0 ; [L913] int tmp___1 ; [L914] int tmp___2 ; [L917] splverifierCounter = 0 Loop: [L919] COND TRUE 1 [L921] COND TRUE splverifierCounter < 4 [L927] tmp = __VERIFIER_nondet_int() [L929] COND FALSE !(\read(tmp)) [L937] tmp___0 = __VERIFIER_nondet_int() [L939] COND FALSE !(\read(tmp___0)) [L947] tmp___2 = __VERIFIER_nondet_int() [L949] COND TRUE \read(tmp___2) [L706] COND FALSE !(\read(pumpRunning)) [L713] COND TRUE \read(systemActive) [L761] int tmp ; [L764] COND FALSE !(\read(pumpRunning)) [L735] int tmp ; [L738] COND TRUE ! pumpRunning [L875] int retValue_acc ; [L876] int tmp ; [L877] int tmp___0 ; [L682] int retValue_acc ; [L685] COND TRUE waterLevel < 2 [L686] retValue_acc = 1 [L687] return (retValue_acc); [L881] tmp = isHighWaterSensorDry() [L883] COND TRUE \read(tmp) [L884] tmp___0 = 0 [L888] retValue_acc = tmp___0 [L889] return (retValue_acc); [L740] tmp = isHighWaterLevel() [L742] COND FALSE !(\read(tmp)) [L467] int tmp ; [L468] int tmp___0 ; [L641] int retValue_acc ; [L644] retValue_acc = methaneLevelCritical [L645] return (retValue_acc); [L472] tmp = isMethaneLevelCritical() [L474] COND FALSE !(\read(tmp)) [L490] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:06:28,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_637fd64d-a655-45ba-9823-c9a65a0ea646/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...