./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/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 858ae6ce02a6182d965089435301193a306a5587 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:45:06,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:45:06,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:45:06,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:45:06,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:45:06,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:45:06,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:45:06,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:45:06,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:45:06,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:45:06,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:45:06,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:45:06,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:45:06,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:45:06,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:45:06,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:45:06,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:45:06,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:45:06,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:45:06,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:45:06,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:45:06,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:45:06,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:45:06,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:45:06,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:45:06,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:45:06,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:45:06,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:45:06,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:45:06,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:45:06,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:45:06,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:45:06,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:45:06,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:45:06,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:45:06,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:45:06,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:45:06,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:45:06,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:45:06,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:45:06,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:45:06,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:45:06,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:45:06,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:45:06,934 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:45:06,935 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:45:06,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:45:06,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:45:06,937 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:45:06,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:45:06,938 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:45:06,938 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:45:06,940 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:45:06,940 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:45:06,941 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:45:06,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:45:06,941 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:45:06,942 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:45:06,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:45:06,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:45:06,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:45:06,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:45:06,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:45:06,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:45:06,944 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:45:06,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:45:06,944 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:45:06,945 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:45:06,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:45:06,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:45:06,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:45:06,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:45:06,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:45:06,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:45:06,951 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:45:06,951 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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2021-10-13 00:45:07,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:45:07,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:45:07,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:45:07,338 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:45:07,339 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:45:07,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-13 00:45:07,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/data/d70744992/517283009e174c6ba0a8e382693c1e01/FLAG1d0372fb9 [2021-10-13 00:45:08,121 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:45:08,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-13 00:45:08,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/data/d70744992/517283009e174c6ba0a8e382693c1e01/FLAG1d0372fb9 [2021-10-13 00:45:08,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/data/d70744992/517283009e174c6ba0a8e382693c1e01 [2021-10-13 00:45:08,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:45:08,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:45:08,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:45:08,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:45:08,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:45:08,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:08" (1/1) ... [2021-10-13 00:45:08,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fce5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:08, skipping insertion in model container [2021-10-13 00:45:08,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:45:08" (1/1) ... [2021-10-13 00:45:08,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:45:08,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:45:08,910 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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-13 00:45:08,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:45:08,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:45:09,045 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_0acf277d-f920-47f6-a1d3-dc5da2128fc0/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-13 00:45:09,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:45:09,115 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:45:09,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09 WrapperNode [2021-10-13 00:45:09,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:45:09,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:45:09,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:45:09,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:45:09,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:45:09,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:45:09,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:45:09,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:45:09,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:45:09,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:45:09,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:45:09,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:45:09,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (1/1) ... [2021-10-13 00:45:09,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:45:09,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:45:09,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:45:09,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:45:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:45:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:45:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:45:09,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:45:10,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:45:10,471 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-13 00:45:10,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:10 BoogieIcfgContainer [2021-10-13 00:45:10,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:45:10,476 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:45:10,476 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:45:10,489 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:45:10,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:10,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:45:08" (1/3) ... [2021-10-13 00:45:10,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aff87da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:45:10, skipping insertion in model container [2021-10-13 00:45:10,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:10,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:45:09" (2/3) ... [2021-10-13 00:45:10,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4aff87da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:45:10, skipping insertion in model container [2021-10-13 00:45:10,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:45:10,496 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:10" (3/3) ... [2021-10-13 00:45:10,498 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2021-10-13 00:45:10,573 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:45:10,574 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:45:10,574 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:45:10,574 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:45:10,574 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:45:10,575 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:45:10,575 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:45:10,575 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:45:10,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.55) internal successors, (124), 80 states have internal predecessors, (124), 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 00:45:10,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 00:45:10,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:10,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:10,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:10,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:10,640 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:45:10,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.55) internal successors, (124), 80 states have internal predecessors, (124), 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 00:45:10,648 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 00:45:10,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:10,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:10,651 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:10,651 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:10,656 INFO L791 eck$LassoCheckResult]: Stem: 65#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 45#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 22#L721true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 42#L729true main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 59#L826true assume 0 != main_~tmp~7; 66#L802true ~methAndRunningLastTime~0 := 0; 21#L663true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L674-1true [2021-10-13 00:45:10,657 INFO L793 eck$LassoCheckResult]: Loop: 10#L674-1true assume !false; 41#L600true assume test_~splverifierCounter~0 < 4; 71#L601true test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 17#L609true assume !(0 != test_~tmp~5); 16#L609-1true test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 15#L619true assume !(0 != test_~tmp___0~1); 13#L619-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 52#L629true assume 0 != test_~tmp___2~0; 79#L635-1true assume !(0 != ~pumpRunning~0); 54#L426true assume !(0 != ~systemActive~0); 5#L433true havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 31#L884true __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 23#L674true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 10#L674-1true [2021-10-13 00:45:10,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:10,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:45:10,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:10,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195802658] [2021-10-13 00:45:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:10,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:11,077 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:11,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:11,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:11,291 INFO L82 PathProgramCache]: Analyzing trace with hash 11341907, now seen corresponding path program 1 times [2021-10-13 00:45:11,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:11,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501499151] [2021-10-13 00:45:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:11,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:11,300 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:11,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:11,340 INFO L82 PathProgramCache]: Analyzing trace with hash 844638413, now seen corresponding path program 1 times [2021-10-13 00:45:11,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:11,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94277116] [2021-10-13 00:45:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:11,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:11,582 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 00:45:11,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:45:11,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94277116] [2021-10-13 00:45:11,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94277116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:45:11,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:11,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:45:11,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694117540] [2021-10-13 00:45:11,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:45:11,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:45:11,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:45:11,850 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 1.55) internal successors, (124), 80 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:45:12,199 INFO L93 Difference]: Finished difference Result 208 states and 295 transitions. [2021-10-13 00:45:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:45:12,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 208 states and 295 transitions. [2021-10-13 00:45:12,213 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2021-10-13 00:45:12,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 208 states to 187 states and 274 transitions. [2021-10-13 00:45:12,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 187 [2021-10-13 00:45:12,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 187 [2021-10-13 00:45:12,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 187 states and 274 transitions. [2021-10-13 00:45:12,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:45:12,228 INFO L681 BuchiCegarLoop]: Abstraction has 187 states and 274 transitions. [2021-10-13 00:45:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states and 274 transitions. [2021-10-13 00:45:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 118. [2021-10-13 00:45:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.4576271186440677) internal successors, (172), 117 states have internal predecessors, (172), 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 00:45:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 172 transitions. [2021-10-13 00:45:12,274 INFO L704 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2021-10-13 00:45:12,275 INFO L587 BuchiCegarLoop]: Abstraction has 118 states and 172 transitions. [2021-10-13 00:45:12,275 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:45:12,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 172 transitions. [2021-10-13 00:45:12,278 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2021-10-13 00:45:12,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:12,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:12,280 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:12,280 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:12,280 INFO L791 eck$LassoCheckResult]: Stem: 379#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 367#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 341#L721 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 342#L729 main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 363#L826 assume 0 != main_~tmp~7; 376#L802 ~methAndRunningLastTime~0 := 0; 340#L663 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 320#L674-1 [2021-10-13 00:45:12,281 INFO L793 eck$LassoCheckResult]: Loop: 320#L674-1 assume !false; 321#L600 assume test_~splverifierCounter~0 < 4; 361#L601 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 333#L609 assume !(0 != test_~tmp~5); 332#L609-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 330#L619 assume !(0 != test_~tmp___0~1); 326#L619-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 327#L629 assume 0 != test_~tmp___2~0; 352#L635-1 assume !(0 != ~pumpRunning~0); 365#L426 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 366#L458 assume !(0 == ~pumpRunning~0); 311#L433 havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 312#L884 __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 343#L674 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 320#L674-1 [2021-10-13 00:45:12,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:12,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:45:12,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:12,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858515947] [2021-10-13 00:45:12,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:12,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,340 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash 319988417, now seen corresponding path program 1 times [2021-10-13 00:45:12,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:12,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81374188] [2021-10-13 00:45:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:12,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:45:12,437 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 00:45:12,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:45:12,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81374188] [2021-10-13 00:45:12,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81374188] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:45:12,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:45:12,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:45:12,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257668814] [2021-10-13 00:45:12,439 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:45:12,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:45:12,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:45:12,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:45:12,441 INFO L87 Difference]: Start difference. First operand 118 states and 172 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:45:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:45:12,539 INFO L93 Difference]: Finished difference Result 160 states and 221 transitions. [2021-10-13 00:45:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:45:12,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 221 transitions. [2021-10-13 00:45:12,551 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-13 00:45:12,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 221 transitions. [2021-10-13 00:45:12,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-10-13 00:45:12,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-10-13 00:45:12,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 221 transitions. [2021-10-13 00:45:12,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:45:12,561 INFO L681 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2021-10-13 00:45:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 221 transitions. [2021-10-13 00:45:12,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-13 00:45:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.38125) internal successors, (221), 159 states have internal predecessors, (221), 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 00:45:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 221 transitions. [2021-10-13 00:45:12,584 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2021-10-13 00:45:12,584 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 221 transitions. [2021-10-13 00:45:12,584 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:45:12,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 221 transitions. [2021-10-13 00:45:12,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-13 00:45:12,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:45:12,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:45:12,588 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:12,588 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:45:12,588 INFO L791 eck$LassoCheckResult]: Stem: 674#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(110, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(102, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 3 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(80, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(117, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(109, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(112, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(32, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 657#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~8, main_~tmp~7;havoc main_~retValue_acc~8;havoc main_~tmp~7; 626#L721 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 627#L729 main_#t~ret68 := valid_product_#res;main_~tmp~7 := main_#t~ret68;havoc main_#t~ret68; 653#L826 assume 0 != main_~tmp~7; 670#L802 ~methAndRunningLastTime~0 := 0; 624#L663 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 625#L674-1 [2021-10-13 00:45:12,589 INFO L793 eck$LassoCheckResult]: Loop: 625#L674-1 assume !false; 730#L600 assume test_~splverifierCounter~0 < 4; 677#L601 test_~tmp~5 := test_#t~nondet61;havoc test_#t~nondet61; 615#L609 assume !(0 != test_~tmp~5); 614#L609-1 test_~tmp___0~1 := test_#t~nondet62;havoc test_#t~nondet62; 612#L619 assume !(0 != test_~tmp___0~1); 609#L619-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 610#L629 assume 0 != test_~tmp___2~0; 637#L635-1 assume !(0 != ~pumpRunning~0); 665#L426 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret42, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 656#L458 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret60, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 629#L924 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 605#L929 isHighWaterLevel_#t~ret60 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret60;havoc isHighWaterLevel_#t~ret60; 606#L560 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 634#L560-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 646#L566 processEnvironment_#t~ret42 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret42;havoc processEnvironment_#t~ret42; 617#L462 assume !(0 != processEnvironment_~tmp~3); 595#L433 havoc __utac_acc__Specification2_spec__2_#t~ret65, __utac_acc__Specification2_spec__2_#t~ret66, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 596#L884 __utac_acc__Specification2_spec__2_#t~ret65 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret65;havoc __utac_acc__Specification2_spec__2_#t~ret65; 733#L674 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 625#L674-1 [2021-10-13 00:45:12,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:12,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:45:12,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:12,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074371482] [2021-10-13 00:45:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:12,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,709 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:12,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:12,774 INFO L82 PathProgramCache]: Analyzing trace with hash 333532013, now seen corresponding path program 1 times [2021-10-13 00:45:12,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:12,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984970857] [2021-10-13 00:45:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:12,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,781 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:45:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:45:12,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1499108787, now seen corresponding path program 1 times [2021-10-13 00:45:12,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:45:12,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884902073] [2021-10-13 00:45:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:45:12,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:45:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,859 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:45:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:45:12,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:46:38,176 WARN L207 SmtUtils]: Spent 1.41 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:47:58,290 WARN L207 SmtUtils]: Spent 39.48 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:47:58,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:47:58 BoogieIcfgContainer [2021-10-13 00:47:58,535 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:47:58,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:47:58,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:47:58,536 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:47:58,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:45:10" (3/4) ... [2021-10-13 00:47:58,540 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:47:58,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:47:58,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:47:58,623 INFO L168 Benchmark]: Toolchain (without parser) took 170216.36 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 52.4 MB in the beginning and 99.1 MB in the end (delta: -46.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:47:58,624 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:47:58,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.43 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 76.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 73.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,627 INFO L168 Benchmark]: Boogie Preprocessor took 105.00 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 71.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,627 INFO L168 Benchmark]: RCFGBuilder took 1144.00 ms. Allocated memory is still 109.1 MB. Free memory was 71.3 MB in the beginning and 79.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,628 INFO L168 Benchmark]: BuchiAutomizer took 168059.34 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 79.2 MB in the beginning and 101.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,629 INFO L168 Benchmark]: Witness Printer took 85.95 ms. Allocated memory is still 134.2 MB. Free memory was 101.2 MB in the beginning and 99.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:47:58,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 703.43 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 76.6 MB in the end (delta: -24.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.63 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 73.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.00 ms. Allocated memory is still 109.1 MB. Free memory was 73.9 MB in the beginning and 71.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1144.00 ms. Allocated memory is still 109.1 MB. Free memory was 71.3 MB in the beginning and 79.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 168059.34 ms. Allocated memory was 109.1 MB in the beginning and 134.2 MB in the end (delta: 25.2 MB). Free memory was 79.2 MB in the beginning and 101.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 16.1 GB. * Witness Printer took 85.95 ms. Allocated memory is still 134.2 MB. Free memory was 101.2 MB in the beginning and 99.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 167.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 167.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 51.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 232 SDtfs, 510 SDslu, 638 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 285.5ms 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: 599]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=12596} State at position 1 is {NULL=0, NULL=12605, NULL=12596, NULL=0, methaneLevelCritical=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=12623, NULL=0, NULL=12597, NULL=12598, cleanupTimeShifts=4, NULL=12620, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@145042cb=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, NULL=12615, NULL=12616, NULL=0, NULL=0, NULL=0, tmp=1, NULL=0, \result=1, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=12608, tmp___0=0, NULL=12613, methAndRunningLastTime=0, NULL=12609, NULL=12611, tmp=0, head=0, NULL=0, NULL=0, NULL=12621, NULL=0, NULL=0, NULL=0, NULL=12603, retValue_acc=0, NULL=12619, NULL=12600, tmp___0=0, NULL=12610, NULL=0, NULL=12612, NULL=12624, NULL=12601, NULL=12604, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37acaa89=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=12599, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@118fa1e2=0, NULL=0, NULL=0, NULL=0, NULL=12606, NULL=12607, \result=0, NULL=0, NULL=12618, retValue_acc=1, NULL=12622, tmp___2=54, retValue_acc=1, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=12617, NULL=12614, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a617a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5563e1e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c35a359=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40534f6e=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47579176=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a9f27af=0, NULL=12602, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L817] int retValue_acc ; [L818] int tmp ; [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) [L662] methAndRunningLastTime = 0 [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 Loop: [L599] COND TRUE 1 [L601] COND TRUE splverifierCounter < 4 [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) [L426] COND FALSE !(\read(pumpRunning)) [L433] COND TRUE \read(systemActive) [L455] int tmp ; [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; [L924] COND TRUE waterLevel < 2 [L925] retValue_acc = 1 [L926] return (retValue_acc); [L558] tmp = isHighWaterSensorDry() [L560] COND TRUE \read(tmp) [L561] tmp___0 = 0 [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); [L460] tmp = isHighWaterLevel() [L462] COND FALSE !(\read(tmp)) [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L672] tmp = isMethaneLevelCritical() [L674] COND FALSE !(\read(tmp)) [L690] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:47:58,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0acf277d-f920-47f6-a1d3-dc5da2128fc0/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...