./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da786641c6f5791cd76909be3af2b92112e50156e91d6775689240586eed4e85 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:53:22,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:53:22,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:53:22,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:53:22,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:53:22,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:53:22,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:53:22,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:53:22,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:53:22,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:53:22,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:53:22,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:53:22,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:53:22,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:53:22,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:53:22,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:53:22,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:53:22,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:53:22,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:53:22,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:53:22,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:53:22,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:53:22,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:53:22,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:53:22,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:53:22,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:53:22,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:53:22,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:53:22,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:53:22,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:53:22,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:53:22,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:53:22,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:53:22,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:53:22,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:53:22,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:53:22,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:53:22,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:53:22,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:53:22,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:53:22,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:53:22,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:53:22,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:53:22,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:53:22,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:53:22,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:53:22,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:53:22,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:53:22,890 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:53:22,891 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:53:22,891 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:53:22,891 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:53:22,893 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:53:22,893 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:53:22,893 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:53:22,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:53:22,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:53:22,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:53:22,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:53:22,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:53:22,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:53:22,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:53:22,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:53:22,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:53:22,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:53:22,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:53:22,897 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:53:22,897 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:53:22,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:53:22,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:53:22,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:53:22,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:53:22,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:53:22,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:53:22,903 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:53:22,904 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_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da786641c6f5791cd76909be3af2b92112e50156e91d6775689240586eed4e85 [2021-10-28 08:53:23,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:53:23,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:53:23,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:53:23,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:53:23,288 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:53:23,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-28 08:53:23,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/data/7b729ab9a/68d1c01b31d844488528b4b5a2f8ebc5/FLAGcbc56a301 [2021-10-28 08:53:24,035 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:53:24,036 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c [2021-10-28 08:53:24,052 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/data/7b729ab9a/68d1c01b31d844488528b4b5a2f8ebc5/FLAGcbc56a301 [2021-10-28 08:53:24,288 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/data/7b729ab9a/68d1c01b31d844488528b4b5a2f8ebc5 [2021-10-28 08:53:24,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:53:24,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:53:24,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:24,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:53:24,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:53:24,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:24,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6e41c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24, skipping insertion in model container [2021-10-28 08:53:24,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:24,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:53:24,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:53:24,752 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_4f01dbce-0754-476c-95b8-10a18f40fe77/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15806,15819] [2021-10-28 08:53:24,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:24,817 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:53:24,891 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_4f01dbce-0754-476c-95b8-10a18f40fe77/sv-benchmarks/c/product-lines/minepump_spec4_product44.cil.c[15806,15819] [2021-10-28 08:53:24,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:53:24,933 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:53:24,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24 WrapperNode [2021-10-28 08:53:24,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:53:24,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:24,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:53:24,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:53:24,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:24,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:53:25,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:53:25,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:53:25,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:53:25,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:53:25,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:53:25,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:53:25,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:53:25,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (1/1) ... [2021-10-28 08:53:25,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:53:25,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:53:25,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:53:25,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:53:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:53:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:53:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:53:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:53:26,281 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:53:26,282 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-28 08:53:26,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:26 BoogieIcfgContainer [2021-10-28 08:53:26,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:53:26,286 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:53:26,286 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:53:26,291 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:53:26,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:26,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:53:24" (1/3) ... [2021-10-28 08:53:26,294 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c6da745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:53:26, skipping insertion in model container [2021-10-28 08:53:26,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:26,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:53:24" (2/3) ... [2021-10-28 08:53:26,295 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c6da745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:53:26, skipping insertion in model container [2021-10-28 08:53:26,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:53:26,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:26" (3/3) ... [2021-10-28 08:53:26,298 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product44.cil.c [2021-10-28 08:53:26,371 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:53:26,372 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:53:26,372 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:53:26,372 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:53:26,372 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:53:26,373 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:53:26,373 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:53:26,373 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:53:26,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:26,430 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-28 08:53:26,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:26,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:26,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:53:26,442 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:26,442 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:53:26,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:26,449 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-28 08:53:26,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:26,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:26,451 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:53:26,451 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:26,458 INFO L791 eck$LassoCheckResult]: Stem: 72#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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 52#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 51#L470true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 83#L478true main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 81#L849true assume 0 != main_~tmp~8; 68#L826true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 58#L61-1true [2021-10-28 08:53:26,459 INFO L793 eck$LassoCheckResult]: Loop: 58#L61-1true assume !false; 69#L500true assume test_~splverifierCounter~0 < 4; 66#L501true test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 61#L509true assume !(0 != test_~tmp~4); 18#L509-1true test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 23#L519true assume !(0 != test_~tmp___0~1); 85#L519-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 32#L529true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 29#L537-1true assume !(0 != ~pumpRunning~0); 49#L572true assume !(0 != ~systemActive~0); 12#L579true 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~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 63#L938true __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; 6#L61true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 58#L61-1true [2021-10-28 08:53:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 08:53:26,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:26,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623283431] [2021-10-28 08:53:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:26,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:26,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:27,106 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1671648180, now seen corresponding path program 1 times [2021-10-28 08:53:27,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:27,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627021830] [2021-10-28 08:53:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:27,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:27,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:27,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627021830] [2021-10-28 08:53:27,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627021830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:27,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:27,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:53:27,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937505977] [2021-10-28 08:53:27,211 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:53:27,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:27,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:53:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:53:27,254 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:27,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:27,378 INFO L93 Difference]: Finished difference Result 166 states and 234 transitions. [2021-10-28 08:53:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:53:27,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 234 transitions. [2021-10-28 08:53:27,396 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 106 [2021-10-28 08:53:27,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 152 states and 219 transitions. [2021-10-28 08:53:27,423 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2021-10-28 08:53:27,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2021-10-28 08:53:27,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 219 transitions. [2021-10-28 08:53:27,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:27,431 INFO L681 BuchiCegarLoop]: Abstraction has 152 states and 219 transitions. [2021-10-28 08:53:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 219 transitions. [2021-10-28 08:53:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2021-10-28 08:53:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.44) internal successors, (216), 149 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2021-10-28 08:53:27,473 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-28 08:53:27,473 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-28 08:53:27,473 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:53:27,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2021-10-28 08:53:27,478 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-10-28 08:53:27,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:27,479 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:27,479 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:53:27,480 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:27,480 INFO L791 eck$LassoCheckResult]: Stem: 347#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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 331#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 329#L470 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 330#L478 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 350#L849 assume 0 != main_~tmp~8; 344#L826 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 345#L61-1 [2021-10-28 08:53:27,480 INFO L793 eck$LassoCheckResult]: Loop: 345#L61-1 assume !false; 374#L500 assume test_~splverifierCounter~0 < 4; 341#L501 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 337#L509 assume !(0 != test_~tmp~4); 289#L509-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 290#L519 assume !(0 != test_~tmp___0~1); 284#L519-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 309#L529 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 297#L537-1 assume !(0 != ~pumpRunning~0); 386#L572 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 382#L604 assume !(0 == ~pumpRunning~0); 379#L579 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~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 378#L938 __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; 376#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 345#L61-1 [2021-10-28 08:53:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 08:53:27,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:27,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882130955] [2021-10-28 08:53:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:27,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:27,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:27,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash -323255269, now seen corresponding path program 1 times [2021-10-28 08:53:27,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:27,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502849299] [2021-10-28 08:53:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:27,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:53:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:53:27,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:53:27,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502849299] [2021-10-28 08:53:27,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502849299] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:53:27,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:53:27,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:53:27,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430577440] [2021-10-28 08:53:27,749 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:53:27,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:53:27,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:53:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:53:27,751 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:27,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:53:27,860 INFO L93 Difference]: Finished difference Result 233 states and 322 transitions. [2021-10-28 08:53:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:53:27,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 322 transitions. [2021-10-28 08:53:27,873 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2021-10-28 08:53:27,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 233 states and 322 transitions. [2021-10-28 08:53:27,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2021-10-28 08:53:27,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2021-10-28 08:53:27,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 322 transitions. [2021-10-28 08:53:27,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:53:27,892 INFO L681 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-28 08:53:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 322 transitions. [2021-10-28 08:53:27,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-10-28 08:53:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 233 states have (on average 1.3819742489270386) internal successors, (322), 232 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:53:27,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 322 transitions. [2021-10-28 08:53:27,925 INFO L704 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-28 08:53:27,925 INFO L587 BuchiCegarLoop]: Abstraction has 233 states and 322 transitions. [2021-10-28 08:53:27,925 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:53:27,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 322 transitions. [2021-10-28 08:53:27,929 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 167 [2021-10-28 08:53:27,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:53:27,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:53:27,930 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 08:53:27,930 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:53:27,931 INFO L791 eck$LassoCheckResult]: Stem: 745#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~string53.base, #t~string53.offset := #Ultimate.allocOnStack(13);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 724#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~8, main_~tmp~8;havoc main_~retValue_acc~8;havoc main_~tmp~8; 722#L470 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 723#L478 main_#t~ret69 := valid_product_#res;main_~tmp~8 := main_#t~ret69;havoc main_#t~ret69; 748#L849 assume 0 != main_~tmp~8; 739#L826 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 740#L61-1 [2021-10-28 08:53:27,931 INFO L793 eck$LassoCheckResult]: Loop: 740#L61-1 assume !false; 741#L500 assume test_~splverifierCounter~0 < 4; 742#L501 test_~tmp~4 := test_#t~nondet45;havoc test_#t~nondet45; 767#L509 assume !(0 != test_~tmp~4); 779#L509-1 test_~tmp___0~1 := test_#t~nondet46;havoc test_#t~nondet46; 778#L519 assume !(0 != test_~tmp___0~1); 759#L519-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 760#L529 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 685#L537-1 assume !(0 != ~pumpRunning~0); 696#L572 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 799#L604 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 798#L946 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 797#L951 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 796#L724 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 670#L724-2 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 671#L730 processEnvironment_#t~ret49 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 652#L608 assume !(0 != processEnvironment_~tmp~5); 653#L579 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~10;havoc getWaterLevel_~retValue_acc~10;getWaterLevel_~retValue_acc~10 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~10; 771#L938 __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; 769#L61 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 740#L61-1 [2021-10-28 08:53:27,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 08:53:27,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:27,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210847980] [2021-10-28 08:53:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:27,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:27,988 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:28,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:28,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1551152025, now seen corresponding path program 1 times [2021-10-28 08:53:28,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:28,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775709706] [2021-10-28 08:53:28,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:28,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:28,114 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:28,132 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:53:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:53:28,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1536440051, now seen corresponding path program 1 times [2021-10-28 08:53:28,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:53:28,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140411226] [2021-10-28 08:53:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:53:28,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:53:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:28,215 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:53:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:53:28,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:54:42,378 WARN L207 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 08:56:01,503 WARN L207 SmtUtils]: Spent 38.82 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 08:56:01,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:56:01 BoogieIcfgContainer [2021-10-28 08:56:01,653 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:56:01,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:56:01,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:56:01,654 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:56:01,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:53:26" (3/4) ... [2021-10-28 08:56:01,658 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:56:01,776 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:56:01,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:56:01,778 INFO L168 Benchmark]: Toolchain (without parser) took 157485.19 ms. Allocated memory was 88.1 MB in the beginning and 148.9 MB in the end (delta: 60.8 MB). Free memory was 51.0 MB in the beginning and 58.1 MB in the end (delta: -7.1 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,779 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 68.7 MB in the beginning and 68.6 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:56:01,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.79 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 50.9 MB in the beginning and 81.9 MB in the end (delta: -31.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 78.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,783 INFO L168 Benchmark]: Boogie Preprocessor took 83.91 ms. Allocated memory is still 113.2 MB. Free memory was 78.8 MB in the beginning and 76.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:56:01,784 INFO L168 Benchmark]: RCFGBuilder took 1155.68 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 79.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,785 INFO L168 Benchmark]: BuchiAutomizer took 155367.12 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 79.6 MB in the beginning and 60.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 89.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,786 INFO L168 Benchmark]: Witness Printer took 123.19 ms. Allocated memory is still 148.9 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:56:01,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 68.7 MB in the beginning and 68.6 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 633.79 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 50.9 MB in the beginning and 81.9 MB in the end (delta: -31.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.08 ms. Allocated memory is still 113.2 MB. Free memory was 81.9 MB in the beginning and 78.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.91 ms. Allocated memory is still 113.2 MB. Free memory was 78.8 MB in the beginning and 76.8 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1155.68 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 79.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 155367.12 ms. Allocated memory was 113.2 MB in the beginning and 148.9 MB in the end (delta: 35.7 MB). Free memory was 79.6 MB in the beginning and 60.2 MB in the end (delta: 19.4 MB). Peak memory consumption was 89.5 MB. Max. memory is 16.1 GB. * Witness Printer took 123.19 ms. Allocated memory is still 148.9 MB. Free memory was 60.2 MB in the beginning and 58.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 233 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 155.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 154.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 233 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 230 SDtfs, 210 SDslu, 158 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 499]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=22274} State at position 1 is {NULL=0, NULL=22300, NULL=0, retValue_acc=1, NULL=22274, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62948489=0, NULL=22284, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c743c08=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b471c36=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e65edd3=0, NULL=0, NULL=22288, NULL=22285, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@96f412b=0, NULL=22296, methaneLevelCritical=0, NULL=22293, tmp___0=0, NULL=0, tmp=0, NULL=22298, NULL=0, retValue_acc=0, tmp___1=0, NULL=22278, NULL=0, NULL=0, tmp___0=0, NULL=22277, NULL=22292, NULL=22302, cleanupTimeShifts=4, NULL=22279, NULL=22301, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74b2521f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0c26f4=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c7af5f7=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a983c29=0, NULL=0, NULL=0, NULL=22299, \result=1, head=0, pumpRunning=0, NULL=22297, \result=0, NULL=0, tmp=1, \result=1, retValue_acc=1, NULL=22283, NULL=22295, tmp=1, NULL=0, NULL=0, NULL=0, NULL=22287, NULL=22289, NULL=0, NULL=22275, tmp=1, tmp___2=66, NULL=0, retValue_acc=1, NULL=22281, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=22286, NULL=22276, NULL=22290, head=0, NULL=0, tmp=0, NULL=22280, NULL=22282, NULL=0, NULL=0, NULL=0, NULL=22294, NULL=22291} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L248] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L767] int cleanupTimeShifts = 4; [L863] int waterLevel = 1; [L864] int methaneLevelCritical = 0; [L840] int retValue_acc ; [L841] int tmp ; [L474] int retValue_acc ; [L477] retValue_acc = 1 [L478] return (retValue_acc); [L847] tmp = valid_product() [L849] COND TRUE \read(tmp) [L490] int splverifierCounter ; [L491] int tmp ; [L492] int tmp___0 ; [L493] int tmp___1 ; [L494] int tmp___2 ; [L497] splverifierCounter = 0 Loop: [L499] COND TRUE 1 [L501] COND TRUE splverifierCounter < 4 [L507] tmp = __VERIFIER_nondet_int() [L509] COND FALSE !(\read(tmp)) [L517] tmp___0 = __VERIFIER_nondet_int() [L519] COND FALSE !(\read(tmp___0)) [L527] tmp___2 = __VERIFIER_nondet_int() [L529] COND TRUE \read(tmp___2) [L753] systemActive = 1 [L572] COND FALSE !(\read(pumpRunning)) [L579] COND TRUE \read(systemActive) [L601] int tmp ; [L604] COND TRUE ! pumpRunning [L716] int retValue_acc ; [L717] int tmp ; [L718] int tmp___0 ; [L943] int retValue_acc ; [L946] COND TRUE waterLevel < 2 [L947] retValue_acc = 1 [L948] return (retValue_acc); [L722] tmp = isHighWaterSensorDry() [L724] COND TRUE \read(tmp) [L725] tmp___0 = 0 [L729] retValue_acc = tmp___0 [L730] return (retValue_acc); [L606] tmp = isHighWaterLevel() [L608] COND FALSE !(\read(tmp)) [L54] int tmp ; [L55] int tmp___0 ; [L934] int retValue_acc ; [L937] retValue_acc = waterLevel [L938] return (retValue_acc); [L59] tmp = getWaterLevel() [L61] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:56:01,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f01dbce-0754-476c-95b8-10a18f40fe77/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...