./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7872b879cd758228927f78edb0db1dba14599e51 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:28:58,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:28:58,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:28:58,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:28:58,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:28:58,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:28:58,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:28:58,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:28:58,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:28:58,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:28:58,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:28:58,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:28:58,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:28:58,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:28:58,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:28:58,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:28:58,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:28:58,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:28:58,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:28:58,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:28:58,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:28:58,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:28:58,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:28:58,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:28:58,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:28:58,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:28:58,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:28:58,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:28:58,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:28:58,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:28:58,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:28:58,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:28:58,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:28:58,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:28:58,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:28:58,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:28:58,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:28:58,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:28:58,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:28:58,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:28:58,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:28:58,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:28:58,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:28:58,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:28:58,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:28:58,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:28:58,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:28:58,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:28:58,928 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:28:58,928 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:28:58,929 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:28:58,929 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:28:58,929 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:28:58,929 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:28:58,930 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:28:58,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:28:58,930 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:28:58,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:28:58,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:28:58,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:28:58,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:28:58,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:28:58,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:28:58,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:28:58,933 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:28:58,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:28:58,933 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:28:58,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:28:58,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:28:58,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:28:58,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:28:58,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:28:58,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:28:58,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:28:58,936 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:28:58,937 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_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7872b879cd758228927f78edb0db1dba14599e51 [2021-10-13 00:28:59,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:28:59,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:28:59,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:28:59,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:28:59,280 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:28:59,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2021-10-13 00:28:59,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/data/e4c013142/99edea29ebf548ad98069a53f8f422c1/FLAG889d03967 [2021-10-13 00:28:59,982 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:28:59,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c [2021-10-13 00:28:59,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/data/e4c013142/99edea29ebf548ad98069a53f8f422c1/FLAG889d03967 [2021-10-13 00:29:00,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/data/e4c013142/99edea29ebf548ad98069a53f8f422c1 [2021-10-13 00:29:00,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:29:00,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:29:00,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:29:00,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:29:00,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:29:00,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:00,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2585e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00, skipping insertion in model container [2021-10-13 00:29:00,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:00,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:29:00,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:29:00,637 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_0b919c98-abe4-4589-93e6-a33335139d87/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[3977,3990] [2021-10-13 00:29:00,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:29:00,797 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:29:00,826 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_0b919c98-abe4-4589-93e6-a33335139d87/sv-benchmarks/c/product-lines/minepump_spec4_product38.cil.c[3977,3990] [2021-10-13 00:29:00,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:29:00,946 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:29:00,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00 WrapperNode [2021-10-13 00:29:00,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:29:00,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:29:00,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:29:00,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:29:00,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:00,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:29:01,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:29:01,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:29:01,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:29:01,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:29:01,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:29:01,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:29:01,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:29:01,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (1/1) ... [2021-10-13 00:29:01,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:29:01,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:29:01,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:29:01,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:29:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:29:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:29:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:29:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:29:02,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:29:02,279 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-10-13 00:29:02,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:02 BoogieIcfgContainer [2021-10-13 00:29:02,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:29:02,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:29:02,310 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:29:02,314 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:29:02,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:29:02,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:29:00" (1/3) ... [2021-10-13 00:29:02,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50a5e6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:29:02, skipping insertion in model container [2021-10-13 00:29:02,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:29:02,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:29:00" (2/3) ... [2021-10-13 00:29:02,318 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50a5e6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:29:02, skipping insertion in model container [2021-10-13 00:29:02,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:29:02,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:02" (3/3) ... [2021-10-13 00:29:02,320 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product38.cil.c [2021-10-13 00:29:02,370 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:29:02,371 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:29:02,371 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:29:02,371 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:29:02,371 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:29:02,371 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:29:02,372 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:29:02,372 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:29:02,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 107 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:02,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-13 00:29:02,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:29:02,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:29:02,435 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:29:02,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:02,436 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:29:02,437 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 108 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 107 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:02,447 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-13 00:29:02,447 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:29:02,447 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:29:02,448 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:29:02,449 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:02,455 INFO L791 eck$LassoCheckResult]: Stem: 97#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 46#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; 75#L925true 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; 29#L933true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 100#L132true assume 0 != main_~tmp~0; 26#L105true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 110#L263-1true [2021-10-13 00:29:02,457 INFO L793 eck$LassoCheckResult]: Loop: 110#L263-1true assume !false; 95#L293true assume test_~splverifierCounter~0 < 4; 93#L294true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 76#L302true assume !(0 != test_~tmp~2); 28#L302-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 106#L312true assume !(0 != test_~tmp___0~1); 39#L312-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 79#L322true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 14#L330-2true assume !(0 != ~pumpRunning~0); 20#L358true assume !(0 != ~systemActive~0); 59#L365true havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 16#L226true __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 102#L263true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 110#L263-1true [2021-10-13 00:29:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:02,466 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:29:02,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:02,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568682456] [2021-10-13 00:29:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:02,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:02,799 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:29:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:02,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:29:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:02,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1679036349, now seen corresponding path program 1 times [2021-10-13 00:29:02,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:02,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557262105] [2021-10-13 00:29:02,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:02,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:03,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:29:03,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557262105] [2021-10-13 00:29:03,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557262105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:29:03,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:29:03,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:29:03,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364384957] [2021-10-13 00:29:03,039 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:29:03,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:29:03,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:29:03,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:29:03,070 INFO L87 Difference]: Start difference. First operand has 108 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 107 states have internal predecessors, (165), 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) [2021-10-13 00:29:03,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:29:03,144 INFO L93 Difference]: Finished difference Result 108 states and 155 transitions. [2021-10-13 00:29:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:29:03,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 155 transitions. [2021-10-13 00:29:03,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-13 00:29:03,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 147 transitions. [2021-10-13 00:29:03,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2021-10-13 00:29:03,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2021-10-13 00:29:03,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 147 transitions. [2021-10-13 00:29:03,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:29:03,178 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2021-10-13 00:29:03,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 147 transitions. [2021-10-13 00:29:03,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-13 00:29:03,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 100 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:03,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2021-10-13 00:29:03,218 INFO L704 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2021-10-13 00:29:03,219 INFO L587 BuchiCegarLoop]: Abstraction has 101 states and 147 transitions. [2021-10-13 00:29:03,219 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:29:03,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 147 transitions. [2021-10-13 00:29:03,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2021-10-13 00:29:03,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:29:03,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:29:03,223 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:29:03,223 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:03,224 INFO L791 eck$LassoCheckResult]: Stem: 325#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 292#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; 293#L925 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; 268#L933 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 269#L132 assume 0 != main_~tmp~0; 263#L105 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 264#L263-1 [2021-10-13 00:29:03,224 INFO L793 eck$LassoCheckResult]: Loop: 264#L263-1 assume !false; 324#L293 assume test_~splverifierCounter~0 < 4; 323#L294 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 314#L302 assume !(0 != test_~tmp~2); 266#L302-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 267#L312 assume !(0 != test_~tmp___0~1); 280#L312-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 281#L322 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 243#L330-2 assume !(0 != ~pumpRunning~0); 237#L358 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 255#L416 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 261#L390-1 assume !(0 == ~pumpRunning~0); 260#L365 havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 244#L226 __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 245#L263 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 264#L263-1 [2021-10-13 00:29:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:03,225 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:29:03,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:03,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603758600] [2021-10-13 00:29:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:03,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,289 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:29:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:29:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:03,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1086510022, now seen corresponding path program 1 times [2021-10-13 00:29:03,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:03,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414839483] [2021-10-13 00:29:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:03,442 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:29:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:29:03,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:29:03,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414839483] [2021-10-13 00:29:03,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414839483] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:29:03,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:29:03,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:29:03,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216957674] [2021-10-13 00:29:03,488 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:29:03,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:29:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:29:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:29:03,494 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. cyclomatic complexity: 48 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:29:03,616 INFO L93 Difference]: Finished difference Result 142 states and 195 transitions. [2021-10-13 00:29:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:29:03,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 195 transitions. [2021-10-13 00:29:03,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-10-13 00:29:03,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 142 states and 195 transitions. [2021-10-13 00:29:03,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 142 [2021-10-13 00:29:03,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 142 [2021-10-13 00:29:03,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 195 transitions. [2021-10-13 00:29:03,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:29:03,639 INFO L681 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2021-10-13 00:29:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 195 transitions. [2021-10-13 00:29:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-10-13 00:29:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 142 states have (on average 1.3732394366197183) internal successors, (195), 141 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:29:03,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2021-10-13 00:29:03,660 INFO L704 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2021-10-13 00:29:03,660 INFO L587 BuchiCegarLoop]: Abstraction has 142 states and 195 transitions. [2021-10-13 00:29:03,667 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:29:03,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 195 transitions. [2021-10-13 00:29:03,670 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 98 [2021-10-13 00:29:03,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:29:03,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:29:03,672 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:29:03,689 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:29:03,689 INFO L791 eck$LassoCheckResult]: Stem: 579#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 542#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; 543#L925 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; 518#L933 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 519#L132 assume 0 != main_~tmp~0; 513#L105 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 514#L263-1 [2021-10-13 00:29:03,690 INFO L793 eck$LassoCheckResult]: Loop: 514#L263-1 assume !false; 578#L293 assume test_~splverifierCounter~0 < 4; 577#L294 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 566#L302 assume !(0 != test_~tmp~2); 516#L302-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 517#L312 assume !(0 != test_~tmp___0~1); 530#L312-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 531#L322 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 493#L330-2 assume !(0 != ~pumpRunning~0); 494#L358 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 505#L416 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret24, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 512#L390-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret43, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 571#L234-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 520#L239-1 isHighWaterLevel_#t~ret43 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret43;havoc isHighWaterLevel_#t~ret43; 521#L518-3 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~2 := 0; 528#L518-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 538#L524-1 processEnvironment__wrappee__highWaterSensor_#t~ret24 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret24;havoc processEnvironment__wrappee__highWaterSensor_#t~ret24; 546#L394-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 511#L365 havoc __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_#t~ret19, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;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; 495#L226 __utac_acc__Specification4_spec__1_#t~ret18 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret18;havoc __utac_acc__Specification4_spec__1_#t~ret18; 496#L263 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 514#L263-1 [2021-10-13 00:29:03,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:03,691 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:29:03,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:03,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972391582] [2021-10-13 00:29:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:03,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,783 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:29:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,903 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:29:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:03,915 INFO L82 PathProgramCache]: Analyzing trace with hash -849194650, now seen corresponding path program 1 times [2021-10-13 00:29:03,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:03,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323217229] [2021-10-13 00:29:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:03,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,923 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:29:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:03,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:29:03,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:29:03,957 INFO L82 PathProgramCache]: Analyzing trace with hash -393123456, now seen corresponding path program 1 times [2021-10-13 00:29:03,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:29:03,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034123956] [2021-10-13 00:29:03,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:29:03,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:29:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:04,032 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:29:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:29:04,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:30:03,127 WARN L207 SmtUtils]: Spent 58.63 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:31:01,708 WARN L207 SmtUtils]: Spent 28.88 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:31:01,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:31:01 BoogieIcfgContainer [2021-10-13 00:31:01,849 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:31:01,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:31:01,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:31:01,850 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:31:01,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:29:02" (3/4) ... [2021-10-13 00:31:01,854 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:31:01,902 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:31:01,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:31:01,903 INFO L168 Benchmark]: Toolchain (without parser) took 121591.10 ms. Allocated memory was 98.6 MB in the beginning and 165.7 MB in the end (delta: 67.1 MB). Free memory was 65.8 MB in the beginning and 52.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 81.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,904 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:31:01,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.87 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 99.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 95.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,906 INFO L168 Benchmark]: Boogie Preprocessor took 101.95 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 93.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,907 INFO L168 Benchmark]: RCFGBuilder took 1130.40 ms. Allocated memory is still 132.1 MB. Free memory was 93.2 MB in the beginning and 100.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,907 INFO L168 Benchmark]: BuchiAutomizer took 119552.79 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 99.3 MB in the beginning and 54.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 93.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,908 INFO L168 Benchmark]: Witness Printer took 52.34 ms. Allocated memory is still 165.7 MB. Free memory was 54.2 MB in the beginning and 52.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:01,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.87 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 65.5 MB in the beginning and 99.0 MB in the end (delta: -33.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 132.1 MB. Free memory was 99.0 MB in the beginning and 95.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.95 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 93.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1130.40 ms. Allocated memory is still 132.1 MB. Free memory was 93.2 MB in the beginning and 100.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 119552.79 ms. Allocated memory was 132.1 MB in the beginning and 165.7 MB in the end (delta: 33.6 MB). Free memory was 99.3 MB in the beginning and 54.2 MB in the end (delta: 45.1 MB). Peak memory consumption was 93.6 MB. Max. memory is 16.1 GB. * Witness Printer took 52.34 ms. Allocated memory is still 165.7 MB. Free memory was 54.2 MB in the beginning and 52.2 MB in the end (delta: 2.0 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 3 locations. The remainder module has 142 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 119.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 118.9s. Construction of modules took 0.1s. 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 42.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 301 SDtfs, 255 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 292]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18518} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=18518, NULL=18541, NULL=0, NULL=18543, NULL=18534, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, tmp___1=0, retValue_acc=0, NULL=0, NULL=18522, cleanupTimeShifts=4, NULL=18538, NULL=18530, waterLevel=1, NULL=0, NULL=0, retValue_acc=1, \result=1, head=0, pumpRunning=0, tmp=1, NULL=18520, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@92ca423=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52a96083=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@457533ba=72, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fd33256=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7efc015f=0, tmp=1, NULL=0, NULL=0, NULL=18519, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, NULL=18533, tmp___0=0, NULL=18542, NULL=18524, NULL=18536, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77d6af97=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cf3ffbd=0, NULL=0, NULL=18531, NULL=18528, NULL=18545, NULL=18539, NULL=0, retValue_acc=0, NULL=0, NULL=18544, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e031909=0, NULL=18540, NULL=18529, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=18532, tmp=0, NULL=18523, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=18535, \result=0, NULL=18525, NULL=0, NULL=0, NULL=18526, NULL=18546, tmp___2=72, splverifierCounter=0, NULL=0, NULL=0, NULL=18537, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68298cc8=0, NULL=18547, NULL=0, NULL=0, NULL=18527, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67fc269f=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L351] int pumpRunning = 0; [L352] int systemActive = 1; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L283] int splverifierCounter ; [L284] int tmp ; [L285] int tmp___0 ; [L286] int tmp___1 ; [L287] int tmp___2 ; [L290] splverifierCounter = 0 Loop: [L292] COND TRUE 1 [L294] COND TRUE splverifierCounter < 4 [L300] tmp = __VERIFIER_nondet_int() [L302] COND FALSE !(\read(tmp)) [L310] tmp___0 = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp___0)) [L320] tmp___2 = __VERIFIER_nondet_int() [L322] COND TRUE \read(tmp___2) [L532] systemActive = 1 [L358] COND FALSE !(\read(pumpRunning)) [L365] COND TRUE \read(systemActive) [L413] int tmp ; [L416] COND FALSE !(\read(pumpRunning)) [L387] int tmp ; [L390] COND TRUE ! pumpRunning [L510] int retValue_acc ; [L511] int tmp ; [L512] int tmp___0 ; [L231] int retValue_acc ; [L234] COND TRUE waterLevel < 2 [L235] retValue_acc = 1 [L236] return (retValue_acc); [L516] tmp = isHighWaterSensorDry() [L518] COND TRUE \read(tmp) [L519] tmp___0 = 0 [L523] retValue_acc = tmp___0 [L524] return (retValue_acc); [L392] tmp = isHighWaterLevel() [L394] COND FALSE !(\read(tmp)) [L256] int tmp ; [L257] int tmp___0 ; [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); [L261] tmp = getWaterLevel() [L263] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:31:01,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b919c98-abe4-4589-93e6-a33335139d87/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...