./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/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 23682bb018ca337818baa43f0543337e0e1afa6d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:08:24,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:08:24,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:08:24,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:08:24,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:08:24,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:08:24,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:08:24,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:08:24,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:08:24,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:08:24,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:08:24,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:08:24,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:08:24,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:08:24,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:08:24,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:08:24,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:08:24,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:08:24,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:08:24,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:08:24,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:08:24,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:08:24,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:08:24,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:08:24,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:08:24,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:08:24,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:08:24,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:08:24,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:08:24,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:08:24,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:08:24,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:08:24,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:08:24,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:08:24,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:08:24,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:08:24,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:08:24,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:08:24,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:08:24,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:08:24,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:08:24,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:08:24,837 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:08:24,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:08:24,838 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:08:24,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:08:24,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:08:24,841 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:08:24,841 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:08:24,842 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:08:24,842 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:08:24,842 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:08:24,843 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:08:24,843 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:08:24,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:08:24,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:08:24,845 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:08:24,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:08:24,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:08:24,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:08:24,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:08:24,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:08:24,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:08:24,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:08:24,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:08:24,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:08:24,848 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:08:24,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:08:24,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:08:24,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:08:24,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:08:24,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:08:24,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:08:24,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:08:24,852 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:08:24,852 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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23682bb018ca337818baa43f0543337e0e1afa6d [2021-10-13 00:08:25,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:08:25,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:08:25,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:08:25,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:08:25,234 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:08:25,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2021-10-13 00:08:25,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/data/0a37414a8/ddf4b5c33dc34b8b92353e80620a9d00/FLAG6ec85ee85 [2021-10-13 00:08:26,072 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:08:26,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c [2021-10-13 00:08:26,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/data/0a37414a8/ddf4b5c33dc34b8b92353e80620a9d00/FLAG6ec85ee85 [2021-10-13 00:08:26,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/data/0a37414a8/ddf4b5c33dc34b8b92353e80620a9d00 [2021-10-13 00:08:26,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:08:26,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:08:26,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:08:26,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:08:26,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:08:26,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:08:26" (1/1) ... [2021-10-13 00:08:26,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5691c34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:26, skipping insertion in model container [2021-10-13 00:08:26,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:08:26" (1/1) ... [2021-10-13 00:08:26,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:08:26,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:08:26,774 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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11394,11407] [2021-10-13 00:08:26,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:08:26,860 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:08:26,947 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_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/sv-benchmarks/c/product-lines/minepump_spec4_product48.cil.c[11394,11407] [2021-10-13 00:08:27,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:08:27,057 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:08:27,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27 WrapperNode [2021-10-13 00:08:27,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:08:27,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:08:27,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:08:27,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:08:27,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:08:27,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:08:27,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:08:27,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:08:27,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:08:27,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:08:27,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:08:27,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:08:27,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (1/1) ... [2021-10-13 00:08:27,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:08:27,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:08:27,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:08:27,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:08:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:08:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:08:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:08:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:08:28,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:08:28,891 INFO L299 CfgBuilder]: Removed 198 assume(true) statements. [2021-10-13 00:08:28,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:08:28 BoogieIcfgContainer [2021-10-13 00:08:28,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:08:28,899 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:08:28,900 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:08:28,907 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:08:28,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:08:28,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:08:26" (1/3) ... [2021-10-13 00:08:28,912 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1391e1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:08:28, skipping insertion in model container [2021-10-13 00:08:28,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:08:28,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:08:27" (2/3) ... [2021-10-13 00:08:28,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1391e1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:08:28, skipping insertion in model container [2021-10-13 00:08:28,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:08:28,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:08:28" (3/3) ... [2021-10-13 00:08:28,916 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2021-10-13 00:08:28,972 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:08:28,972 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:08:28,972 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:08:28,972 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:08:28,972 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:08:28,973 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:08:28,973 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:08:28,973 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:08:28,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.5118110236220472) internal successors, (192), 127 states have internal predecessors, (192), 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 00:08:29,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-13 00:08:29,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:29,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:29,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:29,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:08:29,063 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:08:29,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 128 states, 127 states have (on average 1.5118110236220472) internal successors, (192), 127 states have internal predecessors, (192), 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 00:08:29,085 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-13 00:08:29,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:29,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:29,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:29,088 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:08:29,094 INFO L791 eck$LassoCheckResult]: Stem: 118#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 40#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 28#L961true 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; 17#L969true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 70#L536true assume 0 != main_~tmp~4; 43#L509true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L53-1true [2021-10-13 00:08:29,095 INFO L793 eck$LassoCheckResult]: Loop: 66#L53-1true assume !false; 108#L881true assume test_~splverifierCounter~0 < 4; 39#L882true test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 48#L890true assume !(0 != test_~tmp~9); 96#L890-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 99#L900true assume !(0 != test_~tmp___0~2); 26#L900-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 15#L910true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 33#L918-1true assume !(0 != ~pumpRunning~0); 19#L565true assume !(0 != ~systemActive~0); 111#L572true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 94#L851true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 31#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 66#L53-1true [2021-10-13 00:08:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:29,103 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:08:29,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:29,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886503200] [2021-10-13 00:08:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:29,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:29,406 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:29,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:29,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:29,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1669770356, now seen corresponding path program 1 times [2021-10-13 00:08:29,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:29,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631027866] [2021-10-13 00:08:29,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:29,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:08:29,830 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 00:08:29,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:08:29,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631027866] [2021-10-13 00:08:29,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631027866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:08:29,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:08:29,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:08:29,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694279984] [2021-10-13 00:08:29,840 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:08:29,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:08:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:08:29,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:08:29,870 INFO L87 Difference]: Start difference. First operand has 128 states, 127 states have (on average 1.5118110236220472) internal successors, (192), 127 states have internal predecessors, (192), 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 00:08:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:08:29,968 INFO L93 Difference]: Finished difference Result 250 states and 360 transitions. [2021-10-13 00:08:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:08:29,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 250 states and 360 transitions. [2021-10-13 00:08:29,985 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 162 [2021-10-13 00:08:30,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 250 states to 236 states and 345 transitions. [2021-10-13 00:08:30,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 236 [2021-10-13 00:08:30,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 236 [2021-10-13 00:08:30,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 345 transitions. [2021-10-13 00:08:30,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:08:30,017 INFO L681 BuchiCegarLoop]: Abstraction has 236 states and 345 transitions. [2021-10-13 00:08:30,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 345 transitions. [2021-10-13 00:08:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2021-10-13 00:08:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.4615384615384615) internal successors, (342), 233 states have internal predecessors, (342), 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 00:08:30,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 342 transitions. [2021-10-13 00:08:30,121 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2021-10-13 00:08:30,121 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 342 transitions. [2021-10-13 00:08:30,122 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:08:30,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 342 transitions. [2021-10-13 00:08:30,129 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2021-10-13 00:08:30,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:30,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:30,130 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:30,130 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:08:30,131 INFO L791 eck$LassoCheckResult]: Stem: 515#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 452#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 430#L961 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; 414#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 415#L536 assume 0 != main_~tmp~4; 457#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 458#L53-1 [2021-10-13 00:08:30,131 INFO L793 eck$LassoCheckResult]: Loop: 458#L53-1 assume !false; 509#L881 assume test_~splverifierCounter~0 < 4; 450#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 451#L890 assume !(0 != test_~tmp~9); 465#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 505#L900 assume !(0 != test_~tmp___0~2); 427#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 410#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 411#L918-1 assume !(0 != ~pumpRunning~0); 418#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 419#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 534#L597-1 assume !(0 == ~pumpRunning~0); 533#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 532#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 530#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 458#L53-1 [2021-10-13 00:08:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:30,132 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:08:30,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:30,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939096301] [2021-10-13 00:08:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:30,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:30,235 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:30,349 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1411824402, now seen corresponding path program 1 times [2021-10-13 00:08:30,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:30,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193616590] [2021-10-13 00:08:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:30,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:08:30,403 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 00:08:30,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:08:30,405 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193616590] [2021-10-13 00:08:30,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193616590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:08:30,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:08:30,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:08:30,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2167119] [2021-10-13 00:08:30,410 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:08:30,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:08:30,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:08:30,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:08:30,415 INFO L87 Difference]: Start difference. First operand 234 states and 342 transitions. cyclomatic complexity: 111 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 00:08:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:08:30,555 INFO L93 Difference]: Finished difference Result 317 states and 442 transitions. [2021-10-13 00:08:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:08:30,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 442 transitions. [2021-10-13 00:08:30,562 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2021-10-13 00:08:30,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 317 states and 442 transitions. [2021-10-13 00:08:30,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 317 [2021-10-13 00:08:30,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 317 [2021-10-13 00:08:30,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 442 transitions. [2021-10-13 00:08:30,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:08:30,573 INFO L681 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2021-10-13 00:08:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 442 transitions. [2021-10-13 00:08:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2021-10-13 00:08:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 317 states have (on average 1.3943217665615142) internal successors, (442), 316 states have internal predecessors, (442), 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 00:08:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 442 transitions. [2021-10-13 00:08:30,600 INFO L704 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2021-10-13 00:08:30,600 INFO L587 BuchiCegarLoop]: Abstraction has 317 states and 442 transitions. [2021-10-13 00:08:30,600 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:08:30,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 442 transitions. [2021-10-13 00:08:30,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 223 [2021-10-13 00:08:30,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:30,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:30,615 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:30,615 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 00:08:30,616 INFO L791 eck$LassoCheckResult]: Stem: 1083#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1009#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 988#L961 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; 970#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 971#L536 assume 0 != main_~tmp~4; 1014#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1015#L53-1 [2021-10-13 00:08:30,619 INFO L793 eck$LassoCheckResult]: Loop: 1015#L53-1 assume !false; 1158#L881 assume test_~splverifierCounter~0 < 4; 1157#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 1022#L890 assume !(0 != test_~tmp~9); 1024#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 1074#L900 assume !(0 != test_~tmp___0~2); 1060#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 1150#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 966#L918-1 assume !(0 != ~pumpRunning~0); 1126#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1148#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1140#L597-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1147#L859-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1145#L864-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 1087#L742-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1088#L742-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1141#L748-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 989#L601-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 983#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 1162#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 1160#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 1015#L53-1 [2021-10-13 00:08:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:30,620 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:08:30,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:30,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861847378] [2021-10-13 00:08:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:30,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:30,706 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:30,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:30,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1301686428, now seen corresponding path program 1 times [2021-10-13 00:08:30,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:30,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468328413] [2021-10-13 00:08:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:30,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:08:30,911 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 00:08:30,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:08:30,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468328413] [2021-10-13 00:08:30,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468328413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:08:30,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:08:30,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:08:30,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16220976] [2021-10-13 00:08:30,913 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:08:30,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:08:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:08:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:08:30,916 INFO L87 Difference]: Start difference. First operand 317 states and 442 transitions. cyclomatic complexity: 128 Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 00:08:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:08:31,071 INFO L93 Difference]: Finished difference Result 891 states and 1218 transitions. [2021-10-13 00:08:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:08:31,071 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 891 states and 1218 transitions. [2021-10-13 00:08:31,088 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 637 [2021-10-13 00:08:31,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 891 states to 891 states and 1218 transitions. [2021-10-13 00:08:31,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 891 [2021-10-13 00:08:31,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 891 [2021-10-13 00:08:31,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 891 states and 1218 transitions. [2021-10-13 00:08:31,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:08:31,128 INFO L681 BuchiCegarLoop]: Abstraction has 891 states and 1218 transitions. [2021-10-13 00:08:31,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states and 1218 transitions. [2021-10-13 00:08:31,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 341. [2021-10-13 00:08:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 341 states have (on average 1.3665689149560116) internal successors, (466), 340 states have internal predecessors, (466), 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 00:08:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 466 transitions. [2021-10-13 00:08:31,158 INFO L704 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2021-10-13 00:08:31,158 INFO L587 BuchiCegarLoop]: Abstraction has 341 states and 466 transitions. [2021-10-13 00:08:31,158 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:08:31,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 341 states and 466 transitions. [2021-10-13 00:08:31,161 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 239 [2021-10-13 00:08:31,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:31,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:31,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:31,163 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 00:08:31,164 INFO L791 eck$LassoCheckResult]: Stem: 2311#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2224#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 2204#L961 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; 2186#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 2187#L536 assume 0 != main_~tmp~4; 2229#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2211#L53-1 [2021-10-13 00:08:31,164 INFO L793 eck$LassoCheckResult]: Loop: 2211#L53-1 assume !false; 2263#L881 assume test_~splverifierCounter~0 < 4; 2304#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 2469#L890 assume !(0 != test_~tmp~9); 2467#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 2466#L900 assume !(0 != test_~tmp___0~2); 2463#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 2182#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2183#L918-1 assume !(0 != ~pumpRunning~0); 2190#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2191#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 2431#L597-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2319#L859-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~9 := 0;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2320#L864-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 2317#L742-3 assume !(0 != isHighWaterLevel_~tmp~8);isHighWaterLevel_~tmp___0~1 := 1; 2318#L742-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 2188#L748-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 2189#L601-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 2199#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2290#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 2210#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 2211#L53-1 [2021-10-13 00:08:31,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:31,165 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-13 00:08:31,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:31,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182458695] [2021-10-13 00:08:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:31,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,240 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,351 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:31,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1218273506, now seen corresponding path program 1 times [2021-10-13 00:08:31,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:31,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458122045] [2021-10-13 00:08:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:31,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:08:31,415 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 00:08:31,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:08:31,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458122045] [2021-10-13 00:08:31,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458122045] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:08:31,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:08:31,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:08:31,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113343239] [2021-10-13 00:08:31,419 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:08:31,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:08:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:08:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:08:31,422 INFO L87 Difference]: Start difference. First operand 341 states and 466 transitions. cyclomatic complexity: 128 Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 00:08:31,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:08:31,616 INFO L93 Difference]: Finished difference Result 998 states and 1354 transitions. [2021-10-13 00:08:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:08:31,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 998 states and 1354 transitions. [2021-10-13 00:08:31,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 724 [2021-10-13 00:08:31,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 998 states to 998 states and 1354 transitions. [2021-10-13 00:08:31,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 998 [2021-10-13 00:08:31,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 998 [2021-10-13 00:08:31,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 998 states and 1354 transitions. [2021-10-13 00:08:31,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:08:31,659 INFO L681 BuchiCegarLoop]: Abstraction has 998 states and 1354 transitions. [2021-10-13 00:08:31,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states and 1354 transitions. [2021-10-13 00:08:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 377. [2021-10-13 00:08:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 377 states have (on average 1.3315649867374004) internal successors, (502), 376 states have internal predecessors, (502), 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 00:08:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 502 transitions. [2021-10-13 00:08:31,687 INFO L704 BuchiCegarLoop]: Abstraction has 377 states and 502 transitions. [2021-10-13 00:08:31,687 INFO L587 BuchiCegarLoop]: Abstraction has 377 states and 502 transitions. [2021-10-13 00:08:31,688 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:08:31,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 377 states and 502 transitions. [2021-10-13 00:08:31,698 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 263 [2021-10-13 00:08:31,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:08:31,699 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:08:31,700 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:08:31,700 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 00:08:31,700 INFO L791 eck$LassoCheckResult]: Stem: 3695#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 3579#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 3557#L961 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; 3540#L969 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 3541#L536 assume 0 != main_~tmp~4; 3584#L509 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3585#L53-1 [2021-10-13 00:08:31,701 INFO L793 eck$LassoCheckResult]: Loop: 3585#L53-1 assume !false; 3813#L881 assume test_~splverifierCounter~0 < 4; 3814#L882 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 3889#L890 assume !(0 != test_~tmp~9); 3887#L890-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 3886#L900 assume !(0 != test_~tmp___0~2); 3555#L900-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 3536#L910 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3537#L918-1 assume !(0 != ~pumpRunning~0); 3567#L565 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 3517#L623 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 3518#L597-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 3533#L859-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 3716#L864-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 3717#L742-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3827#L742-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 3825#L748-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 3821#L601-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 3818#L572 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 3817#L851 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 3816#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 3585#L53-1 [2021-10-13 00:08:31,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:31,701 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 5 times [2021-10-13 00:08:31,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:31,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011862595] [2021-10-13 00:08:31,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:31,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,789 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,838 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:31,839 INFO L82 PathProgramCache]: Analyzing trace with hash 621628058, now seen corresponding path program 1 times [2021-10-13 00:08:31,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:31,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297832393] [2021-10-13 00:08:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:31,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,857 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:08:31,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:08:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1077699252, now seen corresponding path program 1 times [2021-10-13 00:08:31,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:08:31,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361643770] [2021-10-13 00:08:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:08:31,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:08:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:31,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:08:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:08:32,020 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:10:01,271 WARN L207 SmtUtils]: Spent 1.48 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:11:29,188 WARN L207 SmtUtils]: Spent 43.65 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:11:29,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:11:29 BoogieIcfgContainer [2021-10-13 00:11:29,447 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:11:29,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:11:29,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:11:29,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:11:29,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:08:28" (3/4) ... [2021-10-13 00:11:29,451 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:11:29,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:11:29,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:11:29,524 INFO L168 Benchmark]: Toolchain (without parser) took 183198.87 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 59.0 MB in the beginning and 83.6 MB in the end (delta: -24.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,526 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 96.5 MB. Free memory was 76.4 MB in the beginning and 76.4 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:29,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.42 ms. Allocated memory is still 96.5 MB. Free memory was 58.8 MB in the beginning and 64.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.01 ms. Allocated memory is still 96.5 MB. Free memory was 64.9 MB in the beginning and 61.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,530 INFO L168 Benchmark]: Boogie Preprocessor took 119.34 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 58.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,530 INFO L168 Benchmark]: RCFGBuilder took 1559.28 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 67.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,531 INFO L168 Benchmark]: BuchiAutomizer took 180547.37 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 67.0 MB in the beginning and 85.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:11:29,532 INFO L168 Benchmark]: Witness Printer took 75.72 ms. Allocated memory is still 155.2 MB. Free memory was 85.7 MB in the beginning and 83.6 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:11:29,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 96.5 MB. Free memory was 76.4 MB in the beginning and 76.4 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 728.42 ms. Allocated memory is still 96.5 MB. Free memory was 58.8 MB in the beginning and 64.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.01 ms. Allocated memory is still 96.5 MB. Free memory was 64.9 MB in the beginning and 61.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.34 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 58.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1559.28 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 58.2 MB in the beginning and 67.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 180547.37 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 67.0 MB in the beginning and 85.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 16.1 GB. * Witness Printer took 75.72 ms. Allocated memory is still 155.2 MB. Free memory was 85.7 MB in the beginning and 83.6 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 377 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 180.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 179.3s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 158.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 1173 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 377 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 962 SDtfs, 1215 SDslu, 1261 SDs, 0 SdLazy, 192 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 322.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI4 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: 880]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18003} State at position 1 is {NULL=0, NULL=0, NULL=18003, NULL=18024, NULL=0, NULL=0, NULL=18018, methaneLevelCritical=0, retValue_acc=1, NULL=0, tmp___1=0, tmp=0, NULL=18020, retValue_acc=0, NULL=0, NULL=18030, NULL=18007, cleanupTimeShifts=4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d49c2e2=0, waterLevel=1, NULL=0, NULL=0, NULL=18019, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a02210d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b83d129=0, NULL=18027, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, \result=1, tmp=1, NULL=0, NULL=18006, retValue_acc=1, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=18010, NULL=18029, head=0, NULL=0, tmp=0, NULL=18008, NULL=18015, NULL=0, NULL=0, NULL=0, NULL=18031, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@984b18d=0, NULL=0, NULL=0, retValue_acc=0, NULL=18014, NULL=18025, NULL=18017, tmp___0=0, NULL=0, NULL=18004, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f8c335e=0, NULL=0, tmp___0=0, NULL=18011, NULL=18016, NULL=18022, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d03f2f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b68b9f9=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50ff2a2a=0, NULL=0, NULL=0, systemActive=1, NULL=18023, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66058797=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18028, \result=0, NULL=18013, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40dccf89=0, NULL=18021, NULL=18026, tmp___2=78, splverifierCounter=0, NULL=0, NULL=18009, NULL=18012, NULL=18005} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L240] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L446] int cleanupTimeShifts = 4; [L558] int pumpRunning = 0; [L559] int systemActive = 1; [L776] int waterLevel = 1; [L777] int methaneLevelCritical = 0; [L527] int retValue_acc ; [L528] int tmp ; [L965] int retValue_acc ; [L968] retValue_acc = 1 [L969] return (retValue_acc); [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L871] int splverifierCounter ; [L872] int tmp ; [L873] int tmp___0 ; [L874] int tmp___1 ; [L875] int tmp___2 ; [L878] splverifierCounter = 0 Loop: [L880] COND TRUE 1 [L882] COND TRUE splverifierCounter < 4 [L888] tmp = __VERIFIER_nondet_int() [L890] COND FALSE !(\read(tmp)) [L898] tmp___0 = __VERIFIER_nondet_int() [L900] COND FALSE !(\read(tmp___0)) [L908] tmp___2 = __VERIFIER_nondet_int() [L910] COND TRUE \read(tmp___2) [L771] systemActive = 1 [L565] COND FALSE !(\read(pumpRunning)) [L572] COND TRUE \read(systemActive) [L620] int tmp ; [L623] COND FALSE !(\read(pumpRunning)) [L594] int tmp ; [L597] COND TRUE ! pumpRunning [L734] int retValue_acc ; [L735] int tmp ; [L736] int tmp___0 ; [L856] int retValue_acc ; [L859] COND TRUE waterLevel < 2 [L860] retValue_acc = 1 [L861] return (retValue_acc); [L740] tmp = isHighWaterSensorDry() [L742] COND TRUE \read(tmp) [L743] tmp___0 = 0 [L747] retValue_acc = tmp___0 [L748] return (retValue_acc); [L599] tmp = isHighWaterLevel() [L601] COND FALSE !(\read(tmp)) [L46] int tmp ; [L47] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = waterLevel [L851] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:11:29,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e81ddd6a-6bb5-44e3-9fc8-328cef512e40/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...