./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.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_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD --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 e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:33:59,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:33:59,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:33:59,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:33:59,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:33:59,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:33:59,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:33:59,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:33:59,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:33:59,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:33:59,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:33:59,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:33:59,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:33:59,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:33:59,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:33:59,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:33:59,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:33:59,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:33:59,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:33:59,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:33:59,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:33:59,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:33:59,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:33:59,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:33:59,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:33:59,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:33:59,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:33:59,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:33:59,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:33:59,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:33:59,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:33:59,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:33:59,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:33:59,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:33:59,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:33:59,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:33:59,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:33:59,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:33:59,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:33:59,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:33:59,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:33:59,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:33:59,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:33:59,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:33:59,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:33:59,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:33:59,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:33:59,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:33:59,881 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:33:59,881 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:33:59,882 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:33:59,882 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:33:59,884 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:33:59,884 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:33:59,884 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:33:59,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:33:59,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:33:59,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:33:59,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:33:59,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:33:59,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:33:59,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:33:59,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:33:59,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:33:59,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:33:59,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:33:59,888 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:33:59,889 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:33:59,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:33:59,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:33:59,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:33:59,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:33:59,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:33:59,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:33:59,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:33:59,895 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_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2021-10-28 23:34:00,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:34:00,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:34:00,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:34:00,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:34:00,306 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:34:00,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2021-10-28 23:34:00,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/data/66b3246ce/cffacf6031274c51be8e59ebcde6e303/FLAG12b4a03c3 [2021-10-28 23:34:01,111 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:34:01,113 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2021-10-28 23:34:01,147 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/data/66b3246ce/cffacf6031274c51be8e59ebcde6e303/FLAG12b4a03c3 [2021-10-28 23:34:01,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/data/66b3246ce/cffacf6031274c51be8e59ebcde6e303 [2021-10-28 23:34:01,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:34:01,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:34:01,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:34:01,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:34:01,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:34:01,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:34:01" (1/1) ... [2021-10-28 23:34:01,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70522b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:01, skipping insertion in model container [2021-10-28 23:34:01,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:34:01" (1/1) ... [2021-10-28 23:34:01,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:34:01,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:34:01,878 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_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2021-10-28 23:34:01,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:34:01,893 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:34:02,007 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_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2021-10-28 23:34:02,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:34:02,034 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:34:02,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02 WrapperNode [2021-10-28 23:34:02,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:34:02,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:34:02,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:34:02,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:34:02,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:34:02,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:34:02,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:34:02,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:34:02,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:34:02,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:34:02,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:34:02,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:34:02,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (1/1) ... [2021-10-28 23:34:02,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:34:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:34:02,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:34:02,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:34:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:34:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:34:02,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:34:02,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:34:03,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:34:03,358 INFO L299 CfgBuilder]: Removed 132 assume(true) statements. [2021-10-28 23:34:03,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:03 BoogieIcfgContainer [2021-10-28 23:34:03,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:34:03,362 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:34:03,362 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:34:03,366 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:34:03,367 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:34:03,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:34:01" (1/3) ... [2021-10-28 23:34:03,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63e43077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:34:03, skipping insertion in model container [2021-10-28 23:34:03,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:34:03,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:34:02" (2/3) ... [2021-10-28 23:34:03,370 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63e43077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:34:03, skipping insertion in model container [2021-10-28 23:34:03,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:34:03,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:03" (3/3) ... [2021-10-28 23:34:03,371 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2021-10-28 23:34:03,426 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:34:03,426 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:34:03,427 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:34:03,427 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:34:03,427 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:34:03,427 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:34:03,428 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:34:03,428 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:34:03,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 95 states, 94 states have (on average 1.5) internal successors, (141), 94 states have internal predecessors, (141), 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 23:34:03,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2021-10-28 23:34:03,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:34:03,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:34:03,512 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:03,512 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:03,512 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:34:03,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 95 states, 94 states have (on average 1.5) internal successors, (141), 94 states have internal predecessors, (141), 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 23:34:03,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 61 [2021-10-28 23:34:03,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:34:03,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:34:03,540 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:03,540 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:03,548 INFO L791 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.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;~switchedOnBeforeTS~0 := 0; 67#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 88#L954true 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; 42#L962true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 50#L508true assume 0 != main_~tmp~3; 95#L479true ~switchedOnBeforeTS~0 := 0; 13#L889true havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 21#L910-1true [2021-10-28 23:34:03,549 INFO L793 eck$LassoCheckResult]: Loop: 21#L910-1true assume !false; 30#L534true assume test_~splverifierCounter~0 < 4; 28#L535true test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 74#L543true assume !(0 != test_~tmp~4); 41#L543-1true test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 14#L553true assume !(0 != test_~tmp___0~0); 37#L553-1true test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 90#L563true assume 0 != test_~tmp___2~0; 7#L569-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 92#L712true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 70#L899true assume !(0 != ~pumpRunning~0); 18#L609true assume !(0 != ~systemActive~0); 60#L616true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;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; 34#L863true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 25#L910true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 21#L910-1true [2021-10-28 23:34:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:03,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:34:03,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:03,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857650310] [2021-10-28 23:34:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:03,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:03,949 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:04,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:04,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:04,155 INFO L85 PathProgramCache]: Analyzing trace with hash -241460907, now seen corresponding path program 1 times [2021-10-28 23:34:04,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:04,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653773672] [2021-10-28 23:34:04,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:04,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:04,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:04,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:04,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1692564303, now seen corresponding path program 1 times [2021-10-28 23:34:04,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:04,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281801384] [2021-10-28 23:34:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:04,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:04,453 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 23:34:04,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:04,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281801384] [2021-10-28 23:34:04,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281801384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:04,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:04,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:34:04,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783683304] [2021-10-28 23:34:04,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:34:04,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:34:04,734 INFO L87 Difference]: Start difference. First operand has 95 states, 94 states have (on average 1.5) internal successors, (141), 94 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 23:34:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:34:05,147 INFO L93 Difference]: Finished difference Result 241 states and 334 transitions. [2021-10-28 23:34:05,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:34:05,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 241 states and 334 transitions. [2021-10-28 23:34:05,158 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 155 [2021-10-28 23:34:05,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 241 states to 220 states and 313 transitions. [2021-10-28 23:34:05,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 220 [2021-10-28 23:34:05,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 220 [2021-10-28 23:34:05,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 220 states and 313 transitions. [2021-10-28 23:34:05,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:05,175 INFO L681 BuchiCegarLoop]: Abstraction has 220 states and 313 transitions. [2021-10-28 23:34:05,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states and 313 transitions. [2021-10-28 23:34:05,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 137. [2021-10-28 23:34:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 1.416058394160584) internal successors, (194), 136 states have internal predecessors, (194), 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 23:34:05,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 194 transitions. [2021-10-28 23:34:05,235 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2021-10-28 23:34:05,235 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 194 transitions. [2021-10-28 23:34:05,236 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:34:05,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 194 transitions. [2021-10-28 23:34:05,239 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 96 [2021-10-28 23:34:05,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:34:05,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:34:05,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:05,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:05,242 INFO L791 eck$LassoCheckResult]: Stem: 441#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.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;~switchedOnBeforeTS~0 := 0; 434#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 435#L954 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; 405#L962 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 406#L508 assume 0 != main_~tmp~3; 415#L479 ~switchedOnBeforeTS~0 := 0; 370#L889 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 371#L910-1 [2021-10-28 23:34:05,242 INFO L793 eck$LassoCheckResult]: Loop: 371#L910-1 assume !false; 385#L534 assume test_~splverifierCounter~0 < 4; 392#L535 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 393#L543 assume !(0 != test_~tmp~4); 357#L543-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 372#L553 assume !(0 != test_~tmp___0~0); 374#L553-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 403#L563 assume 0 != test_~tmp___2~0; 360#L569-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 361#L712 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 437#L899 assume !(0 != ~pumpRunning~0); 380#L609 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 381#L641 assume !(0 == ~pumpRunning~0); 422#L616 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;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; 399#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 391#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 371#L910-1 [2021-10-28 23:34:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:34:05,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:05,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647129399] [2021-10-28 23:34:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:05,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:05,306 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:05,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1062877059, now seen corresponding path program 1 times [2021-10-28 23:34:05,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:05,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890873399] [2021-10-28 23:34:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:05,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:05,420 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 23:34:05,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:05,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890873399] [2021-10-28 23:34:05,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890873399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:05,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:05,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:34:05,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894148585] [2021-10-28 23:34:05,423 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:34:05,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:05,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:34:05,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:34:05,425 INFO L87 Difference]: Start difference. First operand 137 states and 194 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23:34:05,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:34:05,520 INFO L93 Difference]: Finished difference Result 184 states and 248 transitions. [2021-10-28 23:34:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:34:05,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 184 states and 248 transitions. [2021-10-28 23:34:05,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2021-10-28 23:34:05,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 184 states to 184 states and 248 transitions. [2021-10-28 23:34:05,530 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2021-10-28 23:34:05,531 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2021-10-28 23:34:05,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 248 transitions. [2021-10-28 23:34:05,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:05,533 INFO L681 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2021-10-28 23:34:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 248 transitions. [2021-10-28 23:34:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-10-28 23:34:05,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 184 states have (on average 1.3478260869565217) internal successors, (248), 183 states have internal predecessors, (248), 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 23:34:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2021-10-28 23:34:05,559 INFO L704 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2021-10-28 23:34:05,559 INFO L587 BuchiCegarLoop]: Abstraction has 184 states and 248 transitions. [2021-10-28 23:34:05,559 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:34:05,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 248 transitions. [2021-10-28 23:34:05,562 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 132 [2021-10-28 23:34:05,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:34:05,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:34:05,566 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:05,568 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, 1] [2021-10-28 23:34:05,569 INFO L791 eck$LassoCheckResult]: Stem: 775#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.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;~switchedOnBeforeTS~0 := 0; 765#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 766#L954 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; 734#L962 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 735#L508 assume 0 != main_~tmp~3; 744#L479 ~switchedOnBeforeTS~0 := 0; 697#L889 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 698#L910-1 [2021-10-28 23:34:05,569 INFO L793 eck$LassoCheckResult]: Loop: 698#L910-1 assume !false; 713#L534 assume test_~splverifierCounter~0 < 4; 721#L535 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 722#L543 assume !(0 != test_~tmp~4); 684#L543-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 699#L553 assume !(0 != test_~tmp___0~0); 701#L553-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 730#L563 assume 0 != test_~tmp___2~0; 687#L569-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 688#L712 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 767#L899 assume !(0 != ~pumpRunning~0); 707#L609 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 708#L641 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 749#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 736#L876 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 737#L761 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 739#L761-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 762#L767 processEnvironment_#t~ret47 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret47;havoc processEnvironment_#t~ret47; 764#L645 assume !(0 != processEnvironment_~tmp~5); 753#L616 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;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; 726#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 718#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 698#L910-1 [2021-10-28 23:34:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:05,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:34:05,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:05,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596808041] [2021-10-28 23:34:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:05,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:05,691 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:05,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:05,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:05,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1275820079, now seen corresponding path program 1 times [2021-10-28 23:34:05,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:05,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164132658] [2021-10-28 23:34:05,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:05,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:34:05,872 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 23:34:05,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:34:05,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164132658] [2021-10-28 23:34:05,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164132658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:34:05,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:34:05,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:34:05,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544392198] [2021-10-28 23:34:05,874 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:34:05,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:34:05,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:34:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:34:05,877 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. cyclomatic complexity: 67 Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 23:34:06,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:34:06,163 INFO L93 Difference]: Finished difference Result 673 states and 907 transitions. [2021-10-28 23:34:06,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:34:06,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 673 states and 907 transitions. [2021-10-28 23:34:06,174 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 479 [2021-10-28 23:34:06,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 673 states to 673 states and 907 transitions. [2021-10-28 23:34:06,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 673 [2021-10-28 23:34:06,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 673 [2021-10-28 23:34:06,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 673 states and 907 transitions. [2021-10-28 23:34:06,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:34:06,191 INFO L681 BuchiCegarLoop]: Abstraction has 673 states and 907 transitions. [2021-10-28 23:34:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states and 907 transitions. [2021-10-28 23:34:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 358. [2021-10-28 23:34:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 358 states have (on average 1.324022346368715) internal successors, (474), 357 states have internal predecessors, (474), 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 23:34:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 474 transitions. [2021-10-28 23:34:06,221 INFO L704 BuchiCegarLoop]: Abstraction has 358 states and 474 transitions. [2021-10-28 23:34:06,222 INFO L587 BuchiCegarLoop]: Abstraction has 358 states and 474 transitions. [2021-10-28 23:34:06,222 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:34:06,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 358 states and 474 transitions. [2021-10-28 23:34:06,225 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 262 [2021-10-28 23:34:06,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:34:06,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:34:06,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:34:06,227 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, 1, 1, 1] [2021-10-28 23:34:06,228 INFO L791 eck$LassoCheckResult]: Stem: 1675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.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;~switchedOnBeforeTS~0 := 0; 1661#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 1662#L954 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; 1621#L962 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 1622#L508 assume 0 != main_~tmp~3; 1631#L479 ~switchedOnBeforeTS~0 := 0; 1574#L889 havoc test_#t~nondet43, test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1575#L910-1 [2021-10-28 23:34:06,228 INFO L793 eck$LassoCheckResult]: Loop: 1575#L910-1 assume !false; 1821#L534 assume test_~splverifierCounter~0 < 4; 1822#L535 test_~tmp~4 := test_#t~nondet43;havoc test_#t~nondet43; 1877#L543 assume !(0 != test_~tmp~4); 1875#L543-1 test_~tmp___0~0 := test_#t~nondet44;havoc test_#t~nondet44; 1874#L553 assume !(0 != test_~tmp___0~0); 1872#L553-1 test_~tmp___2~0 := test_#t~nondet45;havoc test_#t~nondet45; 1871#L563 assume 0 != test_~tmp___2~0; 1870#L569-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1878#L712 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 1844#L899 assume !(0 != ~pumpRunning~0); 1586#L609 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1587#L641 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1638#L871 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1623#L876 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1624#L761 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1627#L761-2 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 1658#L767 processEnvironment_#t~ret47 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret47;havoc processEnvironment_#t~ret47; 1660#L645 assume !(0 != processEnvironment_~tmp~5); 1645#L616 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;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; 1653#L863 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1827#L910 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 1826#L712-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1825#L914 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1575#L910-1 [2021-10-28 23:34:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-28 23:34:06,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:06,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189191557] [2021-10-28 23:34:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:06,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1997403210, now seen corresponding path program 1 times [2021-10-28 23:34:06,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:06,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911747686] [2021-10-28 23:34:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:06,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,370 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:34:06,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:34:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1856809872, now seen corresponding path program 1 times [2021-10-28 23:34:06,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:34:06,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430703671] [2021-10-28 23:34:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:34:06,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:34:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,460 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:34:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:34:06,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:35:25,336 WARN L207 SmtUtils]: Spent 1.31 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:36:47,220 WARN L207 SmtUtils]: Spent 39.51 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:36:47,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:36:47 BoogieIcfgContainer [2021-10-28 23:36:47,483 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:36:47,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:36:47,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:36:47,484 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:36:47,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:34:03" (3/4) ... [2021-10-28 23:36:47,488 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:36:47,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:36:47,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:36:47,662 INFO L168 Benchmark]: Toolchain (without parser) took 166257.47 ms. Allocated memory was 104.9 MB in the beginning and 188.7 MB in the end (delta: 83.9 MB). Free memory was 72.0 MB in the beginning and 108.4 MB in the end (delta: -36.4 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,662 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:47,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.81 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 71.2 MB in the end (delta: 600.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.10 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 67.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,665 INFO L168 Benchmark]: Boogie Preprocessor took 47.67 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,666 INFO L168 Benchmark]: RCFGBuilder took 1168.50 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 65.7 MB in the beginning and 94.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,667 INFO L168 Benchmark]: BuchiAutomizer took 164121.19 ms. Allocated memory was 142.6 MB in the beginning and 188.7 MB in the end (delta: 46.1 MB). Free memory was 94.6 MB in the beginning and 110.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 98.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,668 INFO L168 Benchmark]: Witness Printer took 176.23 ms. Allocated memory is still 188.7 MB. Free memory was 110.5 MB in the beginning and 108.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:47,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory was 58.5 MB in the beginning and 58.4 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 629.81 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 71.2 MB in the end (delta: 600.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.10 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 67.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.67 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 65.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1168.50 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 65.7 MB in the beginning and 94.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 164121.19 ms. Allocated memory was 142.6 MB in the beginning and 188.7 MB in the end (delta: 46.1 MB). Free memory was 94.6 MB in the beginning and 110.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 98.2 MB. Max. memory is 16.1 GB. * Witness Printer took 176.23 ms. Allocated memory is still 188.7 MB. Free memory was 110.5 MB in the beginning and 108.4 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 358 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 164.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 162.8s. Construction of modules took 0.5s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 398 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 358 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 430 SDtfs, 1260 SDslu, 1174 SDs, 0 SdLazy, 164 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9955} State at position 1 is {NULL=0, NULL=9964, NULL=0, NULL=9955, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@706a53b6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c45f257=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3db243d9=0, methaneLevelCritical=0, retValue_acc=1, tmp=0, NULL=0, NULL=9973, tmp___1=0, NULL=9959, retValue_acc=0, NULL=0, NULL=9962, NULL=9971, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65a4c89c=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@278c693a=0, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=9972, tmp=1, NULL=9983, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48f8a736=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1739e784=0, NULL=0, \result=1, NULL=9981, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp=1, NULL=9982, NULL=9961, NULL=9974, NULL=9958, head=0, NULL=0, NULL=0, tmp=0, NULL=9979, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3152ea34=0, NULL=0, NULL=9980, NULL=9960, NULL=9957, NULL=9965, tmp___0=0, tmp=1, NULL=0, NULL=0, NULL=9977, NULL=9969, switchedOnBeforeTS=0, NULL=9963, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71c5243b=0, \result=0, NULL=9968, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5da91395=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=9978, tmp___0=0, \result=0, NULL=0, NULL=9966, NULL=9967, tmp___2=57, splverifierCounter=0, NULL=0, NULL=0, NULL=9970, NULL=9975, NULL=9976, NULL=9956, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L788] int waterLevel = 1; [L789] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; [L499] int retValue_acc ; [L500] int tmp ; [L958] int retValue_acc ; [L961] retValue_acc = 1 [L962] return (retValue_acc); [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L888] switchedOnBeforeTS = 0 [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L897] switchedOnBeforeTS = isPumpRunning() [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L753] int retValue_acc ; [L754] int tmp ; [L755] int tmp___0 ; [L868] int retValue_acc ; [L871] COND TRUE waterLevel < 2 [L872] retValue_acc = 1 [L873] return (retValue_acc); [L759] tmp = isHighWaterSensorDry() [L761] COND TRUE \read(tmp) [L762] tmp___0 = 0 [L766] retValue_acc = tmp___0 [L767] return (retValue_acc); [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L903] int tmp ; [L904] int tmp___0 ; [L859] int retValue_acc ; [L862] retValue_acc = waterLevel [L863] return (retValue_acc); [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L708] int retValue_acc ; [L711] retValue_acc = pumpRunning [L712] return (retValue_acc); [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:36:47,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2fb7f6a-a8b4-4d7a-8cf2-1e36dfad7b33/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...