./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-b2eff8b [2021-10-28 23:07:13,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:07:13,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:07:13,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:07:13,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:07:13,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:07:13,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:07:13,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:07:13,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:07:13,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:07:13,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:07:13,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:07:13,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:07:13,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:07:13,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:07:13,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:07:13,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:07:13,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:07:13,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:07:13,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:07:13,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:07:13,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:07:13,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:07:13,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:07:13,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:07:13,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:07:13,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:07:13,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:07:13,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:07:13,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:07:13,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:07:13,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:07:13,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:07:13,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:07:13,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:07:13,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:07:13,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:07:13,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:07:13,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:07:13,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:07:13,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:07:13,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:07:13,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:07:13,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:07:13,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:07:13,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:07:13,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:07:13,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:07:13,547 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:07:13,548 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:07:13,548 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:07:13,548 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:07:13,549 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:07:13,549 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:07:13,549 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:07:13,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:07:13,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:07:13,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:07:13,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:07:13,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:07:13,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:07:13,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:07:13,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:07:13,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:07:13,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:07:13,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:07:13,553 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:07:13,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:07:13,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:07:13,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:07:13,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:07:13,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:07:13,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:07:13,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:07:13,556 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:07:13,556 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_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2021-10-28 23:07:13,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:07:13,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:07:13,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:07:13,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:07:13,962 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:07:13,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-10-28 23:07:14,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/data/eae632d8e/3279cd743f19486d9214f67016af86c6/FLAGa24c3d6df [2021-10-28 23:07:14,760 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:07:14,761 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-10-28 23:07:14,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/data/eae632d8e/3279cd743f19486d9214f67016af86c6/FLAGa24c3d6df [2021-10-28 23:07:15,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/data/eae632d8e/3279cd743f19486d9214f67016af86c6 [2021-10-28 23:07:15,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:07:15,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:07:15,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:15,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:07:15,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:07:15,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c20d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15, skipping insertion in model container [2021-10-28 23:07:15,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:07:15,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:07:15,567 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_a94c690b-e1f6-4a57-8766-b2e4c59558b2/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2021-10-28 23:07:15,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:15,643 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:07:15,765 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_a94c690b-e1f6-4a57-8766-b2e4c59558b2/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c[15987,16000] [2021-10-28 23:07:15,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:07:15,816 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:07:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15 WrapperNode [2021-10-28 23:07:15,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:07:15,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:15,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:07:15,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:07:15,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:07:15,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:07:15,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:07:15,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:07:15,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:15,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:07:16,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:07:16,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:07:16,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:07:16,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (1/1) ... [2021-10-28 23:07:16,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:07:16,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:07:16,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:07:16,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:07:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:07:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:07:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:07:16,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:07:17,763 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:07:17,764 INFO L299 CfgBuilder]: Removed 276 assume(true) statements. [2021-10-28 23:07:17,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:17 BoogieIcfgContainer [2021-10-28 23:07:17,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:07:17,772 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:07:17,773 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:07:17,777 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:07:17,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:17,778 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:07:15" (1/3) ... [2021-10-28 23:07:17,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33150a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:07:17, skipping insertion in model container [2021-10-28 23:07:17,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:17,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:07:15" (2/3) ... [2021-10-28 23:07:17,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33150a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:07:17, skipping insertion in model container [2021-10-28 23:07:17,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:07:17,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:17" (3/3) ... [2021-10-28 23:07:17,784 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2021-10-28 23:07:17,858 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:07:17,858 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:07:17,858 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:07:17,858 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:07:17,859 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:07:17,859 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:07:17,859 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:07:17,859 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:07:17,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 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) [2021-10-28 23:07:17,932 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-10-28 23:07:17,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:17,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:17,945 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:07:17,948 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:17,948 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:07:17,950 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 186 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 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) [2021-10-28 23:07:17,968 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 121 [2021-10-28 23:07:17,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:17,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:17,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:07:17,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:17,978 INFO L791 eck$LassoCheckResult]: Stem: 164#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #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;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 51#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 75#L743true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 31#L751true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 141#L977true assume 0 != main_~tmp~10; 181#L954true havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 186#L877-1true [2021-10-28 23:07:17,979 INFO L793 eck$LassoCheckResult]: Loop: 186#L877-1true assume !false; 180#L431true assume test_~splverifierCounter~0 < 4; 115#L432true test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 131#L440true assume !(0 != test_~tmp~3); 38#L440-1true test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 120#L450true assume !(0 != test_~tmp___0~0); 60#L450-1true test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 78#L460true assume 0 != test_~tmp___2~0; 108#L466-2true assume !(0 != ~pumpRunning~0); 52#L502true assume !(0 != ~systemActive~0); 66#L509true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 102#L841true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 29#L877true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 186#L877-1true [2021-10-28 23:07:17,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:07:17,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:17,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636790404] [2021-10-28 23:07:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:18,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:18,374 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:18,608 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1676481278, now seen corresponding path program 1 times [2021-10-28 23:07:18,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:18,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974585350] [2021-10-28 23:07:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:18,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:18,639 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:18,651 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:18,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:18,653 INFO L85 PathProgramCache]: Analyzing trace with hash 37797660, now seen corresponding path program 1 times [2021-10-28 23:07:18,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:18,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307479061] [2021-10-28 23:07:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:18,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:18,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:18,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307479061] [2021-10-28 23:07:18,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307479061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:18,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:18,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:07:18,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068896326] [2021-10-28 23:07:19,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:07:19,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:07:19,065 INFO L87 Difference]: Start difference. First operand has 186 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-28 23:07:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:19,332 INFO L93 Difference]: Finished difference Result 186 states and 274 transitions. [2021-10-28 23:07:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:19,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 274 transitions. [2021-10-28 23:07:19,352 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2021-10-28 23:07:19,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 179 states and 267 transitions. [2021-10-28 23:07:19,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2021-10-28 23:07:19,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2021-10-28 23:07:19,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 267 transitions. [2021-10-28 23:07:19,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:07:19,382 INFO L681 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2021-10-28 23:07:19,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 267 transitions. [2021-10-28 23:07:19,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-10-28 23:07:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.4916201117318435) internal successors, (267), 178 states have internal predecessors, (267), 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) [2021-10-28 23:07:19,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 267 transitions. [2021-10-28 23:07:19,434 INFO L704 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2021-10-28 23:07:19,434 INFO L587 BuchiCegarLoop]: Abstraction has 179 states and 267 transitions. [2021-10-28 23:07:19,434 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:07:19,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 267 transitions. [2021-10-28 23:07:19,439 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2021-10-28 23:07:19,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:19,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:19,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:07:19,441 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:19,441 INFO L791 eck$LassoCheckResult]: Stem: 566#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #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;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 470#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 471#L743 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 441#L751 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 442#L977 assume 0 != main_~tmp~10; 557#L954 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 438#L877-1 [2021-10-28 23:07:19,442 INFO L793 eck$LassoCheckResult]: Loop: 438#L877-1 assume !false; 568#L431 assume test_~splverifierCounter~0 < 4; 539#L432 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 540#L440 assume !(0 != test_~tmp~3); 454#L440-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 455#L450 assume !(0 != test_~tmp___0~0); 482#L450-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 483#L460 assume 0 != test_~tmp___2~0; 505#L466-2 assume !(0 != ~pumpRunning~0); 404#L502 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 472#L586 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 555#L560-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 532#L534-3 assume !(0 == ~pumpRunning~0); 393#L509 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 490#L841 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 436#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 438#L877-1 [2021-10-28 23:07:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:19,443 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:07:19,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:19,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547417586] [2021-10-28 23:07:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:19,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:19,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:19,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash -270276490, now seen corresponding path program 1 times [2021-10-28 23:07:19,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:19,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187800083] [2021-10-28 23:07:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:19,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:19,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:07:19,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187800083] [2021-10-28 23:07:19,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187800083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:19,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:19,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:07:19,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146660078] [2021-10-28 23:07:19,623 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:07:19,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:07:19,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:07:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:07:19,625 INFO L87 Difference]: Start difference. First operand 179 states and 267 transitions. cyclomatic complexity: 90 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-28 23:07:19,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:19,790 INFO L93 Difference]: Finished difference Result 184 states and 255 transitions. [2021-10-28 23:07:19,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:07:19,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 255 transitions. [2021-10-28 23:07:19,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-10-28 23:07:19,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 255 transitions. [2021-10-28 23:07:19,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2021-10-28 23:07:19,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2021-10-28 23:07:19,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 255 transitions. [2021-10-28 23:07:19,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:07:19,801 INFO L681 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2021-10-28 23:07:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 255 transitions. [2021-10-28 23:07:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-10-28 23:07:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.3858695652173914) internal successors, (255), 183 states have internal predecessors, (255), 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) [2021-10-28 23:07:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 255 transitions. [2021-10-28 23:07:19,816 INFO L704 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2021-10-28 23:07:19,816 INFO L587 BuchiCegarLoop]: Abstraction has 184 states and 255 transitions. [2021-10-28 23:07:19,817 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:07:19,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 255 transitions. [2021-10-28 23:07:19,819 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-10-28 23:07:19,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:07:19,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:07:19,821 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:07:19,821 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:19,821 INFO L791 eck$LassoCheckResult]: Stem: 906#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~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #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;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 822#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 823#L743 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 802#L751 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 803#L977 assume 0 != main_~tmp~10; 896#L954 havoc test_#t~nondet42, test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 799#L877-1 [2021-10-28 23:07:19,822 INFO L793 eck$LassoCheckResult]: Loop: 799#L877-1 assume !false; 909#L431 assume test_~splverifierCounter~0 < 4; 880#L432 test_~tmp~3 := test_#t~nondet42;havoc test_#t~nondet42; 881#L440 assume !(0 != test_~tmp~3); 807#L440-1 test_~tmp___0~0 := test_#t~nondet43;havoc test_#t~nondet43; 808#L450 assume !(0 != test_~tmp___0~0); 877#L450-1 test_~tmp___2~0 := test_#t~nondet44;havoc test_#t~nondet44; 856#L460 assume 0 != test_~tmp___2~0; 857#L466-2 assume !(0 != ~pumpRunning~0); 824#L502 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret48, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 825#L586 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret47, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 894#L560-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 875#L534-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 775#L849-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 776#L854-3 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 886#L688-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 866#L688-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 787#L694-3 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 759#L538-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 761#L509 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 842#L841 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 797#L877 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 799#L877-1 [2021-10-28 23:07:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:19,823 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:07:19,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:19,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472673913] [2021-10-28 23:07:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:19,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:19,899 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:20,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:20,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1151634370, now seen corresponding path program 1 times [2021-10-28 23:07:20,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:20,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468834108] [2021-10-28 23:07:20,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:20,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:20,036 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:20,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:07:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1890027800, now seen corresponding path program 1 times [2021-10-28 23:07:20,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:07:20,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182720097] [2021-10-28 23:07:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:20,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:07:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:20,106 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:07:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:07:20,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:08:24,316 WARN L207 SmtUtils]: Spent 1.06 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:09:27,925 WARN L207 SmtUtils]: Spent 34.81 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:09:28,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:09:28 BoogieIcfgContainer [2021-10-28 23:09:28,137 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:09:28,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:28,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:28,139 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:28,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:07:17" (3/4) ... [2021-10-28 23:09:28,143 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:09:28,208 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:09:28,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:28,210 INFO L168 Benchmark]: Toolchain (without parser) took 133153.62 ms. Allocated memory was 113.2 MB in the beginning and 180.4 MB in the end (delta: 67.1 MB). Free memory was 69.7 MB in the beginning and 90.4 MB in the end (delta: -20.7 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,210 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 113.2 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:28,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.34 ms. Allocated memory is still 113.2 MB. Free memory was 69.5 MB in the beginning and 78.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.47 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 74.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,212 INFO L168 Benchmark]: Boogie Preprocessor took 119.70 ms. Allocated memory is still 113.2 MB. Free memory was 74.1 MB in the beginning and 70.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,213 INFO L168 Benchmark]: RCFGBuilder took 1674.05 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 70.6 MB in the beginning and 95.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,214 INFO L168 Benchmark]: BuchiAutomizer took 130365.17 ms. Allocated memory was 142.6 MB in the beginning and 180.4 MB in the end (delta: 37.7 MB). Free memory was 95.8 MB in the beginning and 92.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,214 INFO L168 Benchmark]: Witness Printer took 70.60 ms. Allocated memory is still 180.4 MB. Free memory was 92.5 MB in the beginning and 90.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:28,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 113.2 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.34 ms. Allocated memory is still 113.2 MB. Free memory was 69.5 MB in the beginning and 78.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 151.47 ms. Allocated memory is still 113.2 MB. Free memory was 78.9 MB in the beginning and 74.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.70 ms. Allocated memory is still 113.2 MB. Free memory was 74.1 MB in the beginning and 70.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1674.05 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 70.6 MB in the beginning and 95.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 130365.17 ms. Allocated memory was 142.6 MB in the beginning and 180.4 MB in the end (delta: 37.7 MB). Free memory was 95.8 MB in the beginning and 92.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. * Witness Printer took 70.60 ms. Allocated memory is still 180.4 MB. Free memory was 92.5 MB in the beginning and 90.4 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 184 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 130.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 129.5s. 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 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 184 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 472 SDtfs, 1207 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 430]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=28309, NULL=0, retValue_acc=1, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@114ec805=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d84fe20=51, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=28288, NULL=0, NULL=28293, NULL=28297, cleanupTimeShifts=4, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b02d568=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56665625=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c99edf3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e7cf8d4=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=28306, NULL=28291, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=28295, NULL=0, NULL=0, NULL=0, tmp=1, tmp=1, NULL=28289, NULL=28302, NULL=28283, NULL=28299, head=0, NULL=0, NULL=0, tmp=0, NULL=28307, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fa37e67=0, NULL=0, NULL=28296, NULL=28304, NULL=13816, NULL=28300, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@749d82b5=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1434f2cb=0, NULL=0, NULL=28284, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d526442=0, NULL=28292, tmp=0, NULL=28290, NULL=28303, NULL=28286, tmp___0=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=28301, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e4bed94=0, NULL=0, NULL=28298, retValue_acc=1, NULL=28305, tmp___2=51, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=28287, NULL=28285, NULL=28308, NULL=28294} - 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; [L494] int pumpRunning = 0; [L495] int systemActive = 1; [L766] int waterLevel = 1; [L767] int methaneLevelCritical = 0; [L895] int cleanupTimeShifts = 4; [L968] int retValue_acc ; [L969] int tmp ; [L747] int retValue_acc ; [L750] retValue_acc = 1 [L751] return (retValue_acc); [L975] tmp = valid_product() [L977] COND TRUE \read(tmp) [L421] int splverifierCounter ; [L422] int tmp ; [L423] int tmp___0 ; [L424] int tmp___1 ; [L425] int tmp___2 ; [L428] splverifierCounter = 0 Loop: [L430] COND TRUE 1 [L432] COND TRUE splverifierCounter < 4 [L438] tmp = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp)) [L448] tmp___0 = __VERIFIER_nondet_int() [L450] COND FALSE !(\read(tmp___0)) [L458] tmp___2 = __VERIFIER_nondet_int() [L460] COND TRUE \read(tmp___2) [L502] COND FALSE !(\read(pumpRunning)) [L509] COND TRUE \read(systemActive) [L583] int tmp ; [L586] COND FALSE !(\read(pumpRunning)) [L557] int tmp ; [L560] COND FALSE !(\read(pumpRunning)) [L531] int tmp ; [L534] COND TRUE ! pumpRunning [L680] int retValue_acc ; [L681] int tmp ; [L682] int tmp___0 ; [L846] int retValue_acc ; [L849] COND TRUE waterLevel < 2 [L850] retValue_acc = 1 [L851] return (retValue_acc); [L686] tmp = isHighWaterSensorDry() [L688] COND TRUE \read(tmp) [L689] tmp___0 = 0 [L693] retValue_acc = tmp___0 [L694] return (retValue_acc); [L536] tmp = isHighWaterLevel() [L538] COND FALSE !(\read(tmp)) [L870] int tmp ; [L871] int tmp___0 ; [L837] int retValue_acc ; [L840] retValue_acc = waterLevel [L841] return (retValue_acc); [L875] tmp = getWaterLevel() [L877] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:09:28,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94c690b-e1f6-4a57-8766-b2e4c59558b2/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...