./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX --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 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:57:59,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:57:59,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:57:59,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:57:59,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:57:59,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:57:59,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:57:59,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:57:59,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:57:59,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:57:59,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:57:59,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:57:59,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:57:59,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:57:59,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:57:59,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:57:59,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:57:59,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:57:59,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:57:59,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:57:59,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:57:59,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:57:59,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:57:59,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:57:59,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:57:59,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:57:59,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:57:59,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:57:59,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:57:59,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:57:59,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:57:59,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:57:59,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:57:59,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:57:59,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:57:59,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:57:59,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:58:00,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:58:00,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:58:00,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:58:00,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:58:00,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 08:58:00,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:58:00,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:58:00,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:58:00,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:58:00,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:58:00,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:58:00,071 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:58:00,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 08:58:00,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 08:58:00,071 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 08:58:00,073 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 08:58:00,073 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 08:58:00,073 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 08:58:00,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:58:00,074 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:58:00,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:58:00,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:58:00,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:58:00,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:58:00,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 08:58:00,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 08:58:00,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 08:58:00,075 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:58:00,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:58:00,076 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 08:58:00,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:58:00,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 08:58:00,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:58:00,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:58:00,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:58:00,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:58:00,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:58:00,081 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 08:58:00,081 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_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b [2021-11-09 08:58:00,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:58:00,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:58:00,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:58:00,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:58:00,503 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:58:00,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-11-09 08:58:00,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/data/534a67fae/07acb8adf9874a0e8faa1f23512bade1/FLAGbdafc2c92 [2021-11-09 08:58:01,352 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:58:01,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-11-09 08:58:01,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/data/534a67fae/07acb8adf9874a0e8faa1f23512bade1/FLAGbdafc2c92 [2021-11-09 08:58:01,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/data/534a67fae/07acb8adf9874a0e8faa1f23512bade1 [2021-11-09 08:58:01,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:58:01,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:58:01,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:01,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:58:01,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:58:01,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:01" (1/1) ... [2021-11-09 08:58:01,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a762c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:01, skipping insertion in model container [2021-11-09 08:58:01,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:01" (1/1) ... [2021-11-09 08:58:01,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:58:01,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:58:02,063 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_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-11-09 08:58:02,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:02,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:58:02,165 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_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-11-09 08:58:02,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:02,190 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:58:02,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02 WrapperNode [2021-11-09 08:58:02,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:02,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:02,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:58:02,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:58:02,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:02,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:58:02,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:58:02,301 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:58:02,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:58:02,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:58:02,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:58:02,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:58:02,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (1/1) ... [2021-11-09 08:58:02,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:58:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:02,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:58:02,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 08:58:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:58:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:58:02,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:58:02,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:58:03,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:58:03,615 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-11-09 08:58:03,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:03 BoogieIcfgContainer [2021-11-09 08:58:03,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:58:03,619 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 08:58:03,620 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 08:58:03,626 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 08:58:03,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:03,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 08:58:01" (1/3) ... [2021-11-09 08:58:03,629 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350a60ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:58:03, skipping insertion in model container [2021-11-09 08:58:03,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:03,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:02" (2/3) ... [2021-11-09 08:58:03,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@350a60ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:58:03, skipping insertion in model container [2021-11-09 08:58:03,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:03,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:03" (3/3) ... [2021-11-09 08:58:03,633 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-11-09 08:58:03,686 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 08:58:03,686 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 08:58:03,686 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 08:58:03,686 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 08:58:03,687 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 08:58:03,687 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 08:58:03,687 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 08:58:03,687 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 08:58:03,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 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) [2021-11-09 08:58:03,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-11-09 08:58:03,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:03,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:03,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:03,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:03,735 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 08:58:03,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 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) [2021-11-09 08:58:03,743 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-11-09 08:58:03,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:03,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:03,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:03,745 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:03,750 INFO L791 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 45#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 70#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; 28#L83true main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 15#L541true assume 0 != main_~tmp~3; 20#L517true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L574-1true [2021-11-09 08:58:03,751 INFO L793 eck$LassoCheckResult]: Loop: 71#L574-1true assume !false; 17#L786true assume test_~splverifierCounter~0 < 4; 60#L787true test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 6#L795true assume !(0 != test_~tmp~7); 24#L795-1true test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 16#L805true assume !(0 != test_~tmp___0~2); 31#L805-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 9#L815true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 30#L823-1true assume !(0 != ~pumpRunning~0); 37#L607true assume !(0 != ~systemActive~0); 43#L614true havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 66#L887true __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 81#L568true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 71#L574-1true [2021-11-09 08:58:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 08:58:03,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:03,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616365397] [2021-11-09 08:58:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:03,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,145 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:04,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1672140737, now seen corresponding path program 1 times [2021-11-09 08:58:04,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:04,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078486962] [2021-11-09 08:58:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:04,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:04,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:04,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078486962] [2021-11-09 08:58:04,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078486962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:04,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:04,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:58:04,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838074162] [2021-11-09 08:58:04,416 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 08:58:04,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:04,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:58:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:58:04,440 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 states have internal predecessors, (120), 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) [2021-11-09 08:58:04,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:04,512 INFO L93 Difference]: Finished difference Result 154 states and 216 transitions. [2021-11-09 08:58:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:58:04,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 154 states and 216 transitions. [2021-11-09 08:58:04,527 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2021-11-09 08:58:04,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 154 states to 140 states and 201 transitions. [2021-11-09 08:58:04,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 140 [2021-11-09 08:58:04,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 140 [2021-11-09 08:58:04,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 201 transitions. [2021-11-09 08:58:04,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:04,543 INFO L681 BuchiCegarLoop]: Abstraction has 140 states and 201 transitions. [2021-11-09 08:58:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 201 transitions. [2021-11-09 08:58:04,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-11-09 08:58:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 138 states have (on average 1.434782608695652) internal successors, (198), 137 states have internal predecessors, (198), 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) [2021-11-09 08:58:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 198 transitions. [2021-11-09 08:58:04,595 INFO L704 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-11-09 08:58:04,595 INFO L587 BuchiCegarLoop]: Abstraction has 138 states and 198 transitions. [2021-11-09 08:58:04,595 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 08:58:04,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states and 198 transitions. [2021-11-09 08:58:04,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2021-11-09 08:58:04,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:04,600 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:04,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:04,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:04,602 INFO L791 eck$LassoCheckResult]: Stem: 323#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 304#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 305#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; 280#L83 main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 263#L541 assume 0 != main_~tmp~3; 264#L517 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 269#L574-1 [2021-11-09 08:58:04,603 INFO L793 eck$LassoCheckResult]: Loop: 269#L574-1 assume !false; 363#L786 assume test_~splverifierCounter~0 < 4; 364#L787 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 377#L795 assume !(0 != test_~tmp~7); 375#L795-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 374#L805 assume !(0 != test_~tmp___0~2); 372#L805-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 371#L815 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 255#L823-1 assume !(0 != ~pumpRunning~0); 368#L607 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 367#L639 assume !(0 != ~pumpRunning~0); 366#L614 havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 365#L887 __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 336#L568 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 269#L574-1 [2021-11-09 08:58:04,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:04,604 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 08:58:04,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:04,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576167857] [2021-11-09 08:58:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:04,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,729 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,883 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:04,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash -323747826, now seen corresponding path program 1 times [2021-11-09 08:58:04,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:04,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887823363] [2021-11-09 08:58:04,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:04,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,901 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:04,938 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1279291700, now seen corresponding path program 1 times [2021-11-09 08:58:04,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:04,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617218607] [2021-11-09 08:58:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:04,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:05,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:05,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617218607] [2021-11-09 08:58:05,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617218607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:05,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:05,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:58:05,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766124030] [2021-11-09 08:58:05,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:58:05,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:58:05,324 INFO L87 Difference]: Start difference. First operand 138 states and 198 transitions. cyclomatic complexity: 63 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) [2021-11-09 08:58:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:05,498 INFO L93 Difference]: Finished difference Result 469 states and 686 transitions. [2021-11-09 08:58:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:58:05,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 469 states and 686 transitions. [2021-11-09 08:58:05,518 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 348 [2021-11-09 08:58:05,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 469 states to 469 states and 686 transitions. [2021-11-09 08:58:05,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 469 [2021-11-09 08:58:05,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 469 [2021-11-09 08:58:05,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 469 states and 686 transitions. [2021-11-09 08:58:05,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:05,546 INFO L681 BuchiCegarLoop]: Abstraction has 469 states and 686 transitions. [2021-11-09 08:58:05,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states and 686 transitions. [2021-11-09 08:58:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 270. [2021-11-09 08:58:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 1.4148148148148147) internal successors, (382), 269 states have internal predecessors, (382), 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) [2021-11-09 08:58:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 382 transitions. [2021-11-09 08:58:05,581 INFO L704 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2021-11-09 08:58:05,581 INFO L587 BuchiCegarLoop]: Abstraction has 270 states and 382 transitions. [2021-11-09 08:58:05,581 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 08:58:05,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 382 transitions. [2021-11-09 08:58:05,592 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 192 [2021-11-09 08:58:05,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:05,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:05,593 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:05,594 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:05,594 INFO L791 eck$LassoCheckResult]: Stem: 951#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);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(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 932#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~5, main_~tmp~3;havoc main_~retValue_acc~5;havoc main_~tmp~3; 933#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; 907#L83 main_#t~ret43 := valid_product_#res;main_~tmp~3 := main_#t~ret43;havoc main_#t~ret43; 888#L541 assume 0 != main_~tmp~3; 889#L517 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 896#L574-1 [2021-11-09 08:58:05,595 INFO L793 eck$LassoCheckResult]: Loop: 896#L574-1 assume !false; 1068#L786 assume test_~splverifierCounter~0 < 4; 952#L787 test_~tmp~7 := test_#t~nondet66;havoc test_#t~nondet66; 871#L795 assume !(0 != test_~tmp~7); 873#L795-1 test_~tmp___0~2 := test_#t~nondet67;havoc test_#t~nondet67; 890#L805 assume !(0 != test_~tmp___0~2); 891#L805-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 912#L815 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 909#L823-1 assume !(0 != ~pumpRunning~0); 911#L607 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 921#L639 assume !(0 != ~pumpRunning~0); 1084#L614 havoc __utac_acc__Specification3_spec__1_#t~ret44, __utac_acc__Specification3_spec__1_#t~ret45, __utac_acc__Specification3_spec__1_#t~ret46, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1083#L887 __utac_acc__Specification3_spec__1_#t~ret44 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret44;havoc __utac_acc__Specification3_spec__1_#t~ret44; 1082#L568 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 1081#L919 __utac_acc__Specification3_spec__1_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret45;havoc __utac_acc__Specification3_spec__1_#t~ret45; 1078#L574 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 896#L574-1 [2021-11-09 08:58:05,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:05,595 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-09 08:58:05,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:05,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363682350] [2021-11-09 08:58:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:05,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,676 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:05,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:05,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1884009248, now seen corresponding path program 1 times [2021-11-09 08:58:05,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:05,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441119651] [2021-11-09 08:58:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:05,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,750 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,759 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:05,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1038683270, now seen corresponding path program 1 times [2021-11-09 08:58:05,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:05,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237929487] [2021-11-09 08:58:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:05,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,807 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:05,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:59:21,503 WARN L207 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 09:00:36,279 WARN L207 SmtUtils]: Spent 32.38 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 09:00:36,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:00:36 BoogieIcfgContainer [2021-11-09 09:00:36,439 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:00:36,440 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:00:36,440 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:00:36,441 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:00:36,441 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:03" (3/4) ... [2021-11-09 09:00:36,444 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:00:36,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:00:36,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:00:36,520 INFO L168 Benchmark]: Toolchain (without parser) took 154947.31 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 70.0 MB in the beginning and 46.4 MB in the end (delta: 23.6 MB). Peak memory consumption was 52.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,520 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:00:36,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.74 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 73.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.87 ms. Allocated memory is still 104.9 MB. Free memory was 73.4 MB in the beginning and 70.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,526 INFO L168 Benchmark]: Boogie Preprocessor took 73.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.4 MB in the beginning and 68.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,529 INFO L168 Benchmark]: RCFGBuilder took 1242.19 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 78.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,530 INFO L168 Benchmark]: BuchiAutomizer took 152820.79 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 78.0 MB in the beginning and 48.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,530 INFO L168 Benchmark]: Witness Printer took 78.51 ms. Allocated memory is still 134.2 MB. Free memory was 48.4 MB in the beginning and 46.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:00:36,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 75.5 MB. Free memory was 48.9 MB in the beginning and 48.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.74 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 73.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.87 ms. Allocated memory is still 104.9 MB. Free memory was 73.4 MB in the beginning and 70.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.4 MB in the beginning and 68.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1242.19 ms. Allocated memory is still 104.9 MB. Free memory was 68.3 MB in the beginning and 78.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152820.79 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 78.0 MB in the beginning and 48.4 MB in the end (delta: 29.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. * Witness Printer took 78.51 ms. Allocated memory is still 134.2 MB. Free memory was 48.4 MB in the beginning and 46.4 MB in the end (delta: 1.9 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 5 locations. The remainder module has 270 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 152.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 152.2s. 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, 201 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 270 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 258 SDtfs, 499 SDslu, 532 SDs, 0 SdLazy, 53 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: 785]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13417} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=13417, NULL=0, NULL=13426, retValue_acc=0, NULL=0, NULL=13420, NULL=13429, NULL=13427, NULL=13433, methaneLevelCritical=0, NULL=13441, tmp=0, tmp___1=0, NULL=13436, NULL=0, NULL=0, tmp___0=1, NULL=13424, NULL=13444, NULL=13443, cleanupTimeShifts=4, NULL=13438, tmp=0, NULL=13422, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=13440, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c0f7fdb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529659a=0, NULL=0, NULL=0, NULL=0, NULL=13431, NULL=0, NULL=0, NULL=13435, \result=1, head=0, pumpRunning=0, \result=0, NULL=13439, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a04e5bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a9eca3=63, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8233f00=0, NULL=13423, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7987c637=0, NULL=0, NULL=0, NULL=0, NULL=13428, NULL=13418, NULL=0, NULL=13437, retValue_acc=1, tmp___2=63, NULL=0, tmp___0=0, NULL=13425, NULL=13419, splverifierCounter=0, NULL=0, \result=0, NULL=13432, NULL=13434, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1348f162=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4424341=0, tmp___1=0, head=0, NULL=0, NULL=0, tmp=0, NULL=13421, NULL=0, NULL=0, NULL=0, NULL=13442, NULL=13430, NULL=13445, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bd2e585=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; [L532] int retValue_acc ; [L533] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L539] tmp = valid_product() [L541] COND TRUE \read(tmp) [L776] int splverifierCounter ; [L777] int tmp ; [L778] int tmp___0 ; [L779] int tmp___1 ; [L780] int tmp___2 ; [L783] splverifierCounter = 0 Loop: [L785] COND TRUE 1 [L787] COND TRUE splverifierCounter < 4 [L793] tmp = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp)) [L803] tmp___0 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___0)) [L813] tmp___2 = __VERIFIER_nondet_int() [L815] COND TRUE \read(tmp___2) [L770] systemActive = 1 [L607] COND FALSE !(\read(pumpRunning)) [L614] COND TRUE \read(systemActive) [L636] int tmp ; [L639] COND FALSE !(\read(pumpRunning)) [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L572] tmp___0 = getWaterLevel() [L574] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:00:36,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66872054-a91b-40c0-ab0c-d6a07c8b3b5c/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)