./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.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_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/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_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/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_eedaceed-2474-440f-9fc8-bcef2afce8c3/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 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:37:39,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:37:39,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:37:39,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:37:39,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:37:39,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:37:39,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:37:39,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:37:39,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:37:39,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:37:39,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:37:39,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:37:39,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:37:39,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:37:39,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:37:39,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:37:39,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:37:39,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:37:39,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:37:39,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:37:39,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:37:39,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:37:39,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:37:39,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:37:39,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:37:39,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:37:39,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:37:39,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:37:39,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:37:39,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:37:39,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:37:39,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:37:39,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:37:39,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:37:39,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:37:39,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:37:39,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:37:39,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:37:39,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:37:39,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:37:39,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:37:39,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:37:39,159 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:37:39,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:37:39,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:37:39,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:37:39,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:37:39,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:37:39,162 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:37:39,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:37:39,163 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:37:39,163 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:37:39,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:37:39,164 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:37:39,164 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:37:39,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:37:39,165 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:37:39,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:37:39,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:37:39,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:37:39,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:37:39,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:37:39,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:37:39,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:37:39,167 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:37:39,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:37:39,168 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:37:39,168 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:37:39,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:37:39,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:37:39,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:37:39,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:37:39,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:37:39,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:37:39,171 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:37:39,171 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_eedaceed-2474-440f-9fc8-bcef2afce8c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e02099a7691e56a2269c7f6adf0fcb5caba1ee7f52ae5d6ac320766d29d8d07 [2021-10-28 23:37:39,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:37:39,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:37:39,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:37:39,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:37:39,448 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:37:39,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-28 23:37:39,533 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/data/b4b76be20/02c9dcbd6a7447b29e659ce7051fb6ae/FLAG609b7dc4b [2021-10-28 23:37:40,157 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:37:40,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-28 23:37:40,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/data/b4b76be20/02c9dcbd6a7447b29e659ce7051fb6ae/FLAG609b7dc4b [2021-10-28 23:37:40,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/data/b4b76be20/02c9dcbd6a7447b29e659ce7051fb6ae [2021-10-28 23:37:40,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:37:40,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:37:40,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:37:40,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:37:40,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:37:40,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:40" (1/1) ... [2021-10-28 23:37:40,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f67fb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:40, skipping insertion in model container [2021-10-28 23:37:40,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:40" (1/1) ... [2021-10-28 23:37:40,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:37:40,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:37:40,798 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_eedaceed-2474-440f-9fc8-bcef2afce8c3/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2021-10-28 23:37:40,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:37:40,914 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:37:40,959 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_eedaceed-2474-440f-9fc8-bcef2afce8c3/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4842,4855] [2021-10-28 23:37:41,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:37:41,056 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:37:41,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41 WrapperNode [2021-10-28 23:37:41,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:37:41,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:37:41,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:37:41,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:37:41,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:37:41,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:37:41,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:37:41,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:37:41,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:37:41,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:37:41,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:37:41,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:37:41,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (1/1) ... [2021-10-28 23:37:41,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:37:41,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:37:41,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:37:41,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:37:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:37:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:37:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:37:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:37:42,272 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:37:42,275 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-28 23:37:42,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:42 BoogieIcfgContainer [2021-10-28 23:37:42,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:37:42,279 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:37:42,280 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:37:42,283 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:37:42,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:37:42,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:37:40" (1/3) ... [2021-10-28 23:37:42,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c21ed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:37:42, skipping insertion in model container [2021-10-28 23:37:42,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:37:42,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:41" (2/3) ... [2021-10-28 23:37:42,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c21ed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:37:42, skipping insertion in model container [2021-10-28 23:37:42,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:37:42,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:42" (3/3) ... [2021-10-28 23:37:42,288 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2021-10-28 23:37:42,335 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:37:42,335 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:37:42,335 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:37:42,336 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:37:42,336 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:37:42,336 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:37:42,336 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:37:42,336 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:37:42,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 78 states have internal predecessors, (121), 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 23:37:42,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:37:42,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:37:42,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:37:42,408 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:42,408 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:42,408 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:37:42,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 78 states have internal predecessors, (121), 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 23:37:42,430 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:37:42,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:37:42,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:37:42,432 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:42,432 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:42,448 INFO L791 eck$LassoCheckResult]: Stem: 68#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 51#L-1true havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 74#L75true 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; 34#L83true main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 5#L276true assume 0 != main_~tmp~0; 30#L250true ~methAndRunningLastTime~0 := 0; 66#L892true havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L903-1true [2021-10-28 23:37:42,449 INFO L793 eck$LassoCheckResult]: Loop: 62#L903-1true assume !false; 75#L466true assume test_~splverifierCounter~0 < 4; 77#L467true test_~tmp~3 := test_#t~nondet38;havoc test_#t~nondet38; 10#L475true assume !(0 != test_~tmp~3); 67#L475-1true test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 37#L485true assume !(0 != test_~tmp___0~1); 18#L485-1true test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 32#L495true assume 0 != test_~tmp___2~0; 46#L501-2true assume !(0 != ~pumpRunning~0); 12#L310true assume !(0 != ~systemActive~0); 8#L317true havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 78#L138true __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 43#L903true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 62#L903-1true [2021-10-28 23:37:42,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:42,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:37:42,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:42,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917846663] [2021-10-28 23:37:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:42,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:42,703 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:42,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:37:42,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2753162, now seen corresponding path program 1 times [2021-10-28 23:37:42,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:42,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147446261] [2021-10-28 23:37:42,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:42,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:42,889 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:42,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:37:42,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:42,908 INFO L85 PathProgramCache]: Analyzing trace with hash 836049668, now seen corresponding path program 1 times [2021-10-28 23:37:42,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:42,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167834542] [2021-10-28 23:37:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:42,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:43,108 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 23:37:43,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:37:43,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167834542] [2021-10-28 23:37:43,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167834542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:43,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:43,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:37:43,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309468854] [2021-10-28 23:37:43,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:37:43,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:37:43,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:37:43,290 INFO L87 Difference]: Start difference. First operand has 79 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 78 states have internal predecessors, (121), 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) [2021-10-28 23:37:43,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:37:43,558 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2021-10-28 23:37:43,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:37:43,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 110 transitions. [2021-10-28 23:37:43,563 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:37:43,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 72 states and 103 transitions. [2021-10-28 23:37:43,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2021-10-28 23:37:43,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2021-10-28 23:37:43,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 103 transitions. [2021-10-28 23:37:43,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:37:43,572 INFO L681 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2021-10-28 23:37:43,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 103 transitions. [2021-10-28 23:37:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2021-10-28 23:37:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 71 states have internal predecessors, (103), 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 23:37:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 103 transitions. [2021-10-28 23:37:43,606 INFO L704 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2021-10-28 23:37:43,607 INFO L587 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2021-10-28 23:37:43,607 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:37:43,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 103 transitions. [2021-10-28 23:37:43,609 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:37:43,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:37:43,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:37:43,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:43,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:43,611 INFO L791 eck$LassoCheckResult]: Stem: 245#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 242#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 243#L75 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; 226#L83 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 178#L276 assume 0 != main_~tmp~0; 179#L250 ~methAndRunningLastTime~0 := 0; 220#L892 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 187#L903-1 [2021-10-28 23:37:43,611 INFO L793 eck$LassoCheckResult]: Loop: 187#L903-1 assume !false; 244#L466 assume test_~splverifierCounter~0 < 4; 247#L467 test_~tmp~3 := test_#t~nondet38;havoc test_#t~nondet38; 190#L475 assume !(0 != test_~tmp~3); 192#L475-1 test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 230#L485 assume !(0 != test_~tmp___0~1); 205#L485-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 206#L495 assume 0 != test_~tmp___2~0; 224#L501-2 assume !(0 != ~pumpRunning~0); 193#L310 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 194#L342 assume !(0 == ~pumpRunning~0); 184#L317 havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 185#L138 __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 236#L903 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 187#L903-1 [2021-10-28 23:37:43,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:43,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:37:43,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:43,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776939877] [2021-10-28 23:37:43,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:43,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:43,661 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:43,719 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:37:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 53737313, now seen corresponding path program 1 times [2021-10-28 23:37:43,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:43,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253381706] [2021-10-28 23:37:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:43,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:37:43,737 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 23:37:43,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:37:43,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253381706] [2021-10-28 23:37:43,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253381706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:37:43,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:37:43,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:37:43,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943890115] [2021-10-28 23:37:43,740 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:37:43,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:37:43,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:37:43,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:37:43,741 INFO L87 Difference]: Start difference. First operand 72 states and 103 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 23:37:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:37:43,832 INFO L93 Difference]: Finished difference Result 116 states and 160 transitions. [2021-10-28 23:37:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:37:43,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 160 transitions. [2021-10-28 23:37:43,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-10-28 23:37:43,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 160 transitions. [2021-10-28 23:37:43,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2021-10-28 23:37:43,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2021-10-28 23:37:43,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 160 transitions. [2021-10-28 23:37:43,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:37:43,854 INFO L681 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2021-10-28 23:37:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 160 transitions. [2021-10-28 23:37:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-28 23:37:43,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.3793103448275863) internal successors, (160), 115 states have internal predecessors, (160), 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 23:37:43,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2021-10-28 23:37:43,877 INFO L704 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2021-10-28 23:37:43,878 INFO L587 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2021-10-28 23:37:43,879 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:37:43,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 160 transitions. [2021-10-28 23:37:43,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-10-28 23:37:43,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:37:43,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:37:43,883 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:37:43,883 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] [2021-10-28 23:37:43,884 INFO L791 eck$LassoCheckResult]: Stem: 443#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(13);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string28.base, #t~string28.offset, 1);call write~init~int(80, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(117, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(109, #t~string28.base, 3 + #t~string28.offset, 1);call write~init~int(112, #t~string28.base, 4 + #t~string28.offset, 1);call write~init~int(58, #t~string28.base, 5 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 6 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string34.base, #t~string34.offset, 1);call write~init~int(32, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string36.base, #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 1 + #t~string36.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 439#L-1 havoc main_#res;havoc main_#t~ret18, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 440#L75 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; 423#L83 main_#t~ret18 := valid_product_#res;main_~tmp~0 := main_#t~ret18;havoc main_#t~ret18; 372#L276 assume 0 != main_~tmp~0; 373#L250 ~methAndRunningLastTime~0 := 0; 416#L892 havoc test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_#t~nondet41, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 381#L903-1 [2021-10-28 23:37:43,884 INFO L793 eck$LassoCheckResult]: Loop: 381#L903-1 assume !false; 442#L466 assume test_~splverifierCounter~0 < 4; 447#L467 test_~tmp~3 := test_#t~nondet38;havoc test_#t~nondet38; 382#L475 assume !(0 != test_~tmp~3); 384#L475-1 test_~tmp___0~1 := test_#t~nondet39;havoc test_#t~nondet39; 427#L485 assume !(0 != test_~tmp___0~1); 398#L485-1 test_~tmp___2~0 := test_#t~nondet40;havoc test_#t~nondet40; 399#L495 assume 0 != test_~tmp___2~0; 420#L501-2 assume !(0 != ~pumpRunning~0); 387#L310 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 388#L342 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret37, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 432#L178 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 430#L183 isHighWaterLevel_#t~ret37 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret37;havoc isHighWaterLevel_#t~ret37; 431#L444 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 409#L444-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 410#L450 processEnvironment_#t~ret19 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret19;havoc processEnvironment_#t~ret19; 426#L346 assume !(0 != processEnvironment_~tmp~1); 378#L317 havoc __utac_acc__Specification2_spec__2_#t~ret77, __utac_acc__Specification2_spec__2_#t~ret78, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 379#L138 __utac_acc__Specification2_spec__2_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret77;havoc __utac_acc__Specification2_spec__2_#t~ret77; 433#L903 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 381#L903-1 [2021-10-28 23:37:43,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:43,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:37:43,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:43,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890542718] [2021-10-28 23:37:43,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:43,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:43,958 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:44,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:37:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash 851049645, now seen corresponding path program 1 times [2021-10-28 23:37:44,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:44,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84015458] [2021-10-28 23:37:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:44,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:44,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:44,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:37:44,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:37:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2016626419, now seen corresponding path program 1 times [2021-10-28 23:37:44,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:37:44,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260590040] [2021-10-28 23:37:44,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:37:44,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:37:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:44,110 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:37:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:37:44,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:38:44,557 WARN L207 SmtUtils]: Spent 1.00 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:39:53,222 WARN L207 SmtUtils]: Spent 36.33 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:39:53,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:39:53 BoogieIcfgContainer [2021-10-28 23:39:53,360 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:39:53,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:39:53,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:39:53,361 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:39:53,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:37:42" (3/4) ... [2021-10-28 23:39:53,365 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:39:53,446 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:39:53,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:39:53,448 INFO L168 Benchmark]: Toolchain (without parser) took 132968.84 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 84.1 MB in the beginning and 112.1 MB in the end (delta: -28.0 MB). Peak memory consumption was 83.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,449 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:39:53,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.56 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 81.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.3 MB in the beginning and 78.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,451 INFO L168 Benchmark]: Boogie Preprocessor took 80.75 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 76.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,452 INFO L168 Benchmark]: RCFGBuilder took 1073.10 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 81.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,453 INFO L168 Benchmark]: BuchiAutomizer took 131081.13 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 80.5 MB in the beginning and 35.2 MB in the end (delta: 45.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,454 INFO L168 Benchmark]: Witness Printer took 85.75 ms. Allocated memory is still 144.7 MB. Free memory was 35.2 MB in the beginning and 112.1 MB in the end (delta: -76.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:39:53,458 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 77.6 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 577.56 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 81.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.3 MB in the beginning and 78.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.75 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 76.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1073.10 ms. Allocated memory is still 113.2 MB. Free memory was 76.3 MB in the beginning and 81.1 MB in the end (delta: -4.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 131081.13 ms. Allocated memory was 113.2 MB in the beginning and 144.7 MB in the end (delta: 31.5 MB). Free memory was 80.5 MB in the beginning and 35.2 MB in the end (delta: 45.3 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.1 GB. * Witness Printer took 85.75 ms. Allocated memory is still 144.7 MB. Free memory was 35.2 MB in the beginning and 112.1 MB in the end (delta: -76.9 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 116 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 131.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 130.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. 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 116 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 216 SDtfs, 407 SDslu, 56 SDs, 0 SdLazy, 29 SolverSat, 15 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: 465]: 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=0, NULL=0, NULL=1, NULL=47642, NULL=0, NULL=47645, NULL=47648, methaneLevelCritical=0, tmp=0, retValue_acc=0, tmp___1=0, NULL=0, NULL=47641, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8f9fa13=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a91a063=0, NULL=47644, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23d2c63d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@708a2fc4=52, waterLevel=1, NULL=0, NULL=47639, \result=1, head=0, pumpRunning=0, tmp=1, NULL=20590, retValue_acc=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=47636, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=47633, tmp___0=0, NULL=47638, methAndRunningLastTime=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2700920e=0, NULL=47640, NULL=2066, tmp=0, head=0, NULL=0, NULL=0, NULL=20593, NULL=20592, NULL=47635, NULL=47637, NULL=20594, NULL=0, retValue_acc=0, NULL=0, NULL=47632, NULL=20595, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52029384=0, NULL=0, NULL=47650, NULL=47634, NULL=0, systemActive=1, NULL=47647, NULL=0, \result=0, retValue_acc=0, NULL=47651, \result=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e068a34=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cd1a717=0, NULL=47643, NULL=47649, retValue_acc=1, tmp___2=52, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=47646, NULL=20591, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eda3444=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=47631, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L95] int waterLevel = 1; [L96] int methaneLevelCritical = 0; [L189] int cleanupTimeShifts = 4; [L302] int pumpRunning = 0; [L303] int systemActive = 1; [L689] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L886] int methAndRunningLastTime ; [L267] int retValue_acc ; [L268] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L274] tmp = valid_product() [L276] COND TRUE \read(tmp) [L891] methAndRunningLastTime = 0 [L456] int splverifierCounter ; [L457] int tmp ; [L458] int tmp___0 ; [L459] int tmp___1 ; [L460] int tmp___2 ; [L463] splverifierCounter = 0 Loop: [L465] COND TRUE 1 [L467] COND TRUE splverifierCounter < 4 [L473] tmp = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp)) [L483] tmp___0 = __VERIFIER_nondet_int() [L485] COND FALSE !(\read(tmp___0)) [L493] tmp___2 = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp___2) [L310] COND FALSE !(\read(pumpRunning)) [L317] COND TRUE \read(systemActive) [L339] int tmp ; [L342] COND TRUE ! pumpRunning [L436] int retValue_acc ; [L437] int tmp ; [L438] int tmp___0 ; [L175] int retValue_acc ; [L178] COND TRUE waterLevel < 2 [L179] retValue_acc = 1 [L180] return (retValue_acc); [L442] tmp = isHighWaterSensorDry() [L444] COND TRUE \read(tmp) [L445] tmp___0 = 0 [L449] retValue_acc = tmp___0 [L450] return (retValue_acc); [L344] tmp = isHighWaterLevel() [L346] COND FALSE !(\read(tmp)) [L896] int tmp ; [L897] int tmp___0 ; [L134] int retValue_acc ; [L137] retValue_acc = methaneLevelCritical [L138] return (retValue_acc); [L901] tmp = isMethaneLevelCritical() [L903] COND FALSE !(\read(tmp)) [L919] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:39:53,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eedaceed-2474-440f-9fc8-bcef2afce8c3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...