./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.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_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg --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 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:51:19,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:51:19,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:51:19,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:51:19,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:51:19,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:51:19,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:51:19,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:51:19,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:51:19,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:51:19,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:51:19,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:51:19,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:51:19,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:51:19,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:51:19,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:51:19,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:51:19,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:51:19,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:51:19,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:51:19,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:51:19,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:51:19,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:51:19,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:51:19,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:51:19,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:51:19,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:51:19,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:51:19,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:51:19,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:51:19,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:51:19,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:51:19,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:51:19,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:51:19,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:51:19,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:51:19,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:51:19,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:51:19,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:51:19,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:51:19,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:51:19,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:51:19,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:51:19,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:51:19,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:51:19,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:51:19,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:51:19,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:51:19,388 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:51:19,388 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:51:19,388 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:51:19,389 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:51:19,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:51:19,390 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:51:19,390 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:51:19,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:51:19,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:51:19,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:51:19,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:51:19,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:51:19,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:51:19,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:51:19,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:51:19,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:51:19,392 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:51:19,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:51:19,393 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:51:19,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:51:19,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:51:19,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:51:19,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:51:19,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:51:19,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:51:19,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:51:19,397 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:51:19,397 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_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a980eb28c166cc2413133a58258bd0330d7e4ef715989f4b0f1fe0e46631b0a [2021-10-28 08:51:19,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:51:19,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:51:19,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:51:19,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:51:19,702 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:51:19,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2021-10-28 08:51:19,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/data/dc720d3a1/9e0c3c2f7ede4057b465ffa857a0a64f/FLAGc478c9175 [2021-10-28 08:51:20,371 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:51:20,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c [2021-10-28 08:51:20,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/data/dc720d3a1/9e0c3c2f7ede4057b465ffa857a0a64f/FLAGc478c9175 [2021-10-28 08:51:20,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/data/dc720d3a1/9e0c3c2f7ede4057b465ffa857a0a64f [2021-10-28 08:51:20,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:51:20,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:51:20,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:51:20,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:51:20,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:51:20,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:51:20" (1/1) ... [2021-10-28 08:51:20,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20aee910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:20, skipping insertion in model container [2021-10-28 08:51:20,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:51:20" (1/1) ... [2021-10-28 08:51:20,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:51:20,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:51:21,147 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_107abc3e-0789-40ae-9f32-a42323c3ad10/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c[17788,17801] [2021-10-28 08:51:21,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:51:21,158 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:51:21,228 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_107abc3e-0789-40ae-9f32-a42323c3ad10/sv-benchmarks/c/product-lines/minepump_spec3_product18.cil.c[17788,17801] [2021-10-28 08:51:21,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:51:21,248 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:51:21,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21 WrapperNode [2021-10-28 08:51:21,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:51:21,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:51:21,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:51:21,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:51:21,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:51:21,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:51:21,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:51:21,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:51:21,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:51:21,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:51:21,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:51:21,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:51:21,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (1/1) ... [2021-10-28 08:51:21,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:51:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:51:21,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:51:21,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:51:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:51:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:51:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:51:21,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:51:22,317 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:51:22,317 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2021-10-28 08:51:22,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:22 BoogieIcfgContainer [2021-10-28 08:51:22,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:51:22,320 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:51:22,321 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:51:22,324 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:51:22,325 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:22,325 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:51:20" (1/3) ... [2021-10-28 08:51:22,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dc90f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:51:22, skipping insertion in model container [2021-10-28 08:51:22,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:22,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:51:21" (2/3) ... [2021-10-28 08:51:22,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dc90f9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:51:22, skipping insertion in model container [2021-10-28 08:51:22,327 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:51:22,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:22" (3/3) ... [2021-10-28 08:51:22,329 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2021-10-28 08:51:22,372 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:51:22,373 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:51:22,373 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:51:22,373 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:51:22,373 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:51:22,373 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:51:22,373 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:51:22,373 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:51:22,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 77 states have internal predecessors, (117), 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 08:51:22,421 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 08:51:22,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:22,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:22,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:22,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:22,429 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:51:22,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 78 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 77 states have internal predecessors, (117), 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 08:51:22,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 08:51:22,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:22,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:22,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:22,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:22,441 INFO L791 eck$LassoCheckResult]: Stem: 57#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 43#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 27#L868true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 25#L876true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 65#L140true assume 0 != main_~tmp~0; 49#L113true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L897-1true [2021-10-28 08:51:22,442 INFO L793 eck$LassoCheckResult]: Loop: 44#L897-1true assume !false; 6#L790true assume test_~splverifierCounter~0 < 4; 31#L791true test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 67#L799true assume !(0 != test_~tmp~6); 42#L799-1true test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 64#L809true assume !(0 != test_~tmp___0~1); 34#L809-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 55#L819true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 45#L827-2true assume !(0 != ~pumpRunning~0); 4#L626true assume !(0 != ~systemActive~0); 70#L633true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 17#L202true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 8#L891true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 44#L897-1true [2021-10-28 08:51:22,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:22,447 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:51:22,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:22,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578228573] [2021-10-28 08:51:22,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:22,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:22,674 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:22,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:22,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:22,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1680729482, now seen corresponding path program 1 times [2021-10-28 08:51:22,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:22,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659303662] [2021-10-28 08:51:22,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:22,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:22,871 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 08:51:22,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:51:22,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659303662] [2021-10-28 08:51:22,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659303662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:51:22,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:51:22,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:51:22,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778960744] [2021-10-28 08:51:22,879 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:51:22,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:51:22,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:51:22,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:51:22,900 INFO L87 Difference]: Start difference. First operand has 78 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 77 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 08:51:22,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:22,955 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2021-10-28 08:51:22,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:51:22,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 107 transitions. [2021-10-28 08:51:22,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:51:22,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 99 transitions. [2021-10-28 08:51:22,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2021-10-28 08:51:22,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2021-10-28 08:51:22,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 99 transitions. [2021-10-28 08:51:22,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:51:22,983 INFO L681 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-28 08:51:22,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 99 transitions. [2021-10-28 08:51:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-28 08:51:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 70 states have internal predecessors, (99), 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 08:51:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2021-10-28 08:51:23,013 INFO L704 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-28 08:51:23,013 INFO L587 BuchiCegarLoop]: Abstraction has 71 states and 99 transitions. [2021-10-28 08:51:23,013 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:51:23,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 99 transitions. [2021-10-28 08:51:23,015 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 08:51:23,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:23,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:23,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:23,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:51:23,016 INFO L791 eck$LassoCheckResult]: Stem: 231#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 221#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 206#L868 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 203#L876 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 204#L140 assume 0 != main_~tmp~0; 226#L113 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 175#L897-1 [2021-10-28 08:51:23,017 INFO L793 eck$LassoCheckResult]: Loop: 175#L897-1 assume !false; 171#L790 assume test_~splverifierCounter~0 < 4; 172#L791 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 209#L799 assume !(0 != test_~tmp~6); 219#L799-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 220#L809 assume !(0 != test_~tmp___0~1); 194#L809-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 215#L819 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 222#L827-2 assume !(0 != ~pumpRunning~0); 167#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 168#L658 assume !(0 != ~pumpRunning~0); 202#L633 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 190#L202 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 174#L891 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 175#L897-1 [2021-10-28 08:51:23,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,018 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:51:23,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860525669] [2021-10-28 08:51:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,139 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:23,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,274 INFO L85 PathProgramCache]: Analyzing trace with hash -589998930, now seen corresponding path program 1 times [2021-10-28 08:51:23,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685233142] [2021-10-28 08:51:23,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,284 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1013040596, now seen corresponding path program 1 times [2021-10-28 08:51:23,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065480697] [2021-10-28 08:51:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:51:23,392 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 08:51:23,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:51:23,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065480697] [2021-10-28 08:51:23,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065480697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:51:23,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:51:23,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:51:23,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054297622] [2021-10-28 08:51:23,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:51:23,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:51:23,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:51:23,527 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. cyclomatic complexity: 30 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 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 08:51:23,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:51:23,631 INFO L93 Difference]: Finished difference Result 241 states and 345 transitions. [2021-10-28 08:51:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:51:23,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 345 transitions. [2021-10-28 08:51:23,638 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2021-10-28 08:51:23,641 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 241 states and 345 transitions. [2021-10-28 08:51:23,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 241 [2021-10-28 08:51:23,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 241 [2021-10-28 08:51:23,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 241 states and 345 transitions. [2021-10-28 08:51:23,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:51:23,655 INFO L681 BuchiCegarLoop]: Abstraction has 241 states and 345 transitions. [2021-10-28 08:51:23,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states and 345 transitions. [2021-10-28 08:51:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 136. [2021-10-28 08:51:23,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 135 states have internal predecessors, (188), 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 08:51:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 188 transitions. [2021-10-28 08:51:23,668 INFO L704 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2021-10-28 08:51:23,668 INFO L587 BuchiCegarLoop]: Abstraction has 136 states and 188 transitions. [2021-10-28 08:51:23,668 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:51:23,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 188 transitions. [2021-10-28 08:51:23,670 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-10-28 08:51:23,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:51:23,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:51:23,671 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:51:23,671 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 08:51:23,671 INFO L791 eck$LassoCheckResult]: Stem: 573#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~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 559#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 539#L868 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 536#L876 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 537#L140 assume 0 != main_~tmp~0; 566#L113 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 517#L897-1 [2021-10-28 08:51:23,671 INFO L793 eck$LassoCheckResult]: Loop: 517#L897-1 assume !false; 615#L790 assume test_~splverifierCounter~0 < 4; 543#L791 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 544#L799 assume !(0 != test_~tmp~6); 557#L799-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 558#L809 assume !(0 != test_~tmp___0~1); 629#L809-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 628#L819 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 624#L827-2 assume !(0 != ~pumpRunning~0); 622#L626 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret53, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 619#L658 assume !(0 != ~pumpRunning~0); 617#L633 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 616#L202 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 504#L891 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 505#L234 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 515#L897 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 517#L897-1 [2021-10-28 08:51:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:51:23,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231021765] [2021-10-28 08:51:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,714 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,785 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:23,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash -53282720, now seen corresponding path program 1 times [2021-10-28 08:51:23,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573320849] [2021-10-28 08:51:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,793 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:51:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1425557498, now seen corresponding path program 1 times [2021-10-28 08:51:23,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:51:23,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101885126] [2021-10-28 08:51:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:51:23,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:51:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,879 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:51:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:51:23,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:52:20,214 WARN L207 SmtUtils]: Spent 56.04 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:53:16,121 WARN L207 SmtUtils]: Spent 26.24 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:53:16,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:53:16 BoogieIcfgContainer [2021-10-28 08:53:16,257 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:53:16,257 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:53:16,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:53:16,258 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:53:16,258 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:51:22" (3/4) ... [2021-10-28 08:53:16,261 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:53:16,305 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:53:16,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:53:16,306 INFO L168 Benchmark]: Toolchain (without parser) took 115521.58 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 75.7 MB in the beginning and 49.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,307 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:16,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.38 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 77.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.73 ms. Allocated memory is still 111.1 MB. Free memory was 77.3 MB in the beginning and 74.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,308 INFO L168 Benchmark]: Boogie Preprocessor took 68.23 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 72.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,309 INFO L168 Benchmark]: RCFGBuilder took 922.75 ms. Allocated memory is still 111.1 MB. Free memory was 72.5 MB in the beginning and 82.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,309 INFO L168 Benchmark]: BuchiAutomizer took 113936.57 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 82.8 MB in the beginning and 51.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,310 INFO L168 Benchmark]: Witness Printer took 48.05 ms. Allocated memory is still 138.4 MB. Free memory was 51.6 MB in the beginning and 49.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:16,313 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 83.9 MB. Free memory was 54.4 MB in the beginning and 54.4 MB in the end (delta: 21.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.38 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 77.3 MB in the end (delta: -2.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.73 ms. Allocated memory is still 111.1 MB. Free memory was 77.3 MB in the beginning and 74.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.23 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 72.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 922.75 ms. Allocated memory is still 111.1 MB. Free memory was 72.5 MB in the beginning and 82.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 113936.57 ms. Allocated memory was 111.1 MB in the beginning and 138.4 MB in the end (delta: 27.3 MB). Free memory was 82.8 MB in the beginning and 51.6 MB in the end (delta: 31.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. * Witness Printer took 48.05 ms. Allocated memory is still 138.4 MB. Free memory was 51.6 MB in the beginning and 49.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 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 5 locations. The remainder module has 136 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 113.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 113.5s. Construction of modules took 0.0s. 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, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 136 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 239 SDtfs, 466 SDslu, 400 SDs, 0 SdLazy, 46 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 789]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9234} State at position 1 is {NULL=9252, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8312f2=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7267637f=0, NULL=9234, NULL=9255, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9247, NULL=9236, NULL=9238, NULL=9263, methaneLevelCritical=0, NULL=9259, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cfb538f=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36883b5f=0, NULL=9243, NULL=0, tmp=0, NULL=0, NULL=9239, tmp___1=0, NULL=0, NULL=0, NULL=9246, NULL=9242, cleanupTimeShifts=4, NULL=9262, NULL=9245, NULL=9249, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=9248, NULL=0, NULL=9254, NULL=0, retValue_acc=1, NULL=9237, NULL=0, NULL=0, NULL=9251, \result=1, head=0, pumpRunning=0, tmp=1, NULL=9253, \result=0, NULL=0, NULL=9235, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b2625f8=0, NULL=0, NULL=9256, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f0ae4cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f4ccff=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@468d4ef9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e47975a=0, NULL=9257, tmp___2=66, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=9260, NULL=9258, NULL=9240, tmp___1=0, head=0, tmp=0, NULL=0, NULL=0, NULL=9261, NULL=0, NULL=0, NULL=9264, NULL=9250, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int waterLevel = 1; [L160] int methaneLevelCritical = 0; [L417] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L618] int pumpRunning = 0; [L619] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L872] int retValue_acc ; [L875] retValue_acc = 1 [L876] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L780] int splverifierCounter ; [L781] int tmp ; [L782] int tmp___0 ; [L783] int tmp___1 ; [L784] int tmp___2 ; [L787] splverifierCounter = 0 Loop: [L789] COND TRUE 1 [L791] COND TRUE splverifierCounter < 4 [L797] tmp = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp)) [L807] tmp___0 = __VERIFIER_nondet_int() [L809] COND FALSE !(\read(tmp___0)) [L817] tmp___2 = __VERIFIER_nondet_int() [L819] COND TRUE \read(tmp___2) [L774] systemActive = 1 [L626] COND FALSE !(\read(pumpRunning)) [L633] COND TRUE \read(systemActive) [L655] int tmp ; [L658] COND FALSE !(\read(pumpRunning)) [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L198] int retValue_acc ; [L201] retValue_acc = methaneLevelCritical [L202] return (retValue_acc); [L889] tmp = isMethaneLevelCritical() [L891] COND FALSE !(\read(tmp)) [L230] int retValue_acc ; [L233] retValue_acc = waterLevel [L234] return (retValue_acc); [L895] tmp___0 = getWaterLevel() [L897] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:53:16,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_107abc3e-0789-40ae-9f32-a42323c3ad10/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...