./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f716f844e272d3040100c1f49345c7fdf02d773 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:53:35,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:53:35,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:53:35,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:53:35,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:53:35,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:53:35,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:53:35,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:53:35,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:53:35,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:53:35,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:53:35,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:53:35,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:53:35,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:53:35,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:53:35,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:53:35,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:53:35,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:53:35,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:53:35,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:53:35,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:53:35,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:53:35,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:53:35,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:53:35,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:53:35,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:53:35,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:53:35,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:53:35,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:53:35,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:53:35,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:53:35,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:53:35,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:53:35,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:53:35,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:53:35,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:53:35,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:53:35,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:53:35,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:53:35,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:53:35,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:53:35,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:53:35,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:53:35,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:53:35,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:53:35,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:53:35,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:53:35,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:53:35,241 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:53:35,242 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:53:35,242 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:53:35,242 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:53:35,242 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:53:35,243 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:53:35,243 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:53:35,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:53:35,244 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:53:35,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:53:35,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:53:35,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:53:35,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:53:35,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:53:35,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:53:35,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:53:35,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:53:35,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:53:35,247 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:53:35,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:53:35,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:53:35,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:53:35,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:53:35,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:53:35,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:53:35,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:53:35,250 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:53:35,251 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_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f716f844e272d3040100c1f49345c7fdf02d773 [2021-10-13 00:53:35,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:53:35,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:53:35,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:53:35,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:53:35,578 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:53:35,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-13 00:53:35,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/data/ac5306316/4be9ff7ac3e341c4aba74b079e246de6/FLAG9a162a825 [2021-10-13 00:53:36,278 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:53:36,278 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-13 00:53:36,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/data/ac5306316/4be9ff7ac3e341c4aba74b079e246de6/FLAG9a162a825 [2021-10-13 00:53:36,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/data/ac5306316/4be9ff7ac3e341c4aba74b079e246de6 [2021-10-13 00:53:36,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:53:36,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:53:36,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:36,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:53:36,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:53:36,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:36" (1/1) ... [2021-10-13 00:53:36,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@430871d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:36, skipping insertion in model container [2021-10-13 00:53:36,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:36" (1/1) ... [2021-10-13 00:53:36,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:53:36,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:53:37,009 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_e74741ee-e53a-4f5f-adc5-977977d8068a/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-13 00:53:37,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:37,023 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:53:37,151 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_e74741ee-e53a-4f5f-adc5-977977d8068a/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-13 00:53:37,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:37,197 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:53:37,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37 WrapperNode [2021-10-13 00:53:37,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:37,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:37,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:53:37,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:53:37,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:37,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:53:37,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:53:37,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:53:37,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:53:37,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:53:37,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:53:37,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:53:37,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (1/1) ... [2021-10-13 00:53:37,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:53:37,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:53:37,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:53:37,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:53:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:53:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:53:37,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:53:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:53:38,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:53:38,429 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-13 00:53:38,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:38 BoogieIcfgContainer [2021-10-13 00:53:38,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:53:38,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:53:38,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:53:38,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:53:38,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:53:38,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:53:36" (1/3) ... [2021-10-13 00:53:38,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@467dded2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:53:38, skipping insertion in model container [2021-10-13 00:53:38,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:53:38,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:37" (2/3) ... [2021-10-13 00:53:38,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@467dded2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:53:38, skipping insertion in model container [2021-10-13 00:53:38,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:53:38,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:38" (3/3) ... [2021-10-13 00:53:38,448 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2021-10-13 00:53:38,514 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:53:38,514 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:53:38,514 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:53:38,514 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:53:38,514 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:53:38,515 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:53:38,515 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:53:38,515 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:53:38,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:38,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:53:38,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:53:38,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:53:38,583 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:53:38,584 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:38,584 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:53:38,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:38,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:53:38,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:53:38,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:53:38,607 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:53:38,607 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:38,620 INFO L791 eck$LassoCheckResult]: Stem: 59#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 45#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; 23#L534true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 14#L542true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 22#L498true assume 0 != main_~tmp~3; 29#L471true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, 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; 3#L884-1true [2021-10-13 00:53:38,621 INFO L793 eck$LassoCheckResult]: Loop: 3#L884-1true assume !false; 68#L558true assume test_~splverifierCounter~0 < 4; 50#L559true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 52#L567true assume !(0 != test_~tmp~4); 25#L567-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 73#L577true assume !(0 != test_~tmp___0~0); 54#L577-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 67#L587true assume 0 != test_~tmp___2~0; 48#L593-2true assume !(0 != ~pumpRunning~0); 69#L722true assume !(0 != ~systemActive~0); 40#L729true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 38#L692true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 30#L884true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 3#L884-1true [2021-10-13 00:53:38,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:53:38,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:38,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271415290] [2021-10-13 00:53:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:38,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:38,976 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:39,147 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:39,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:39,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1681529854, now seen corresponding path program 1 times [2021-10-13 00:53:39,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:39,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111036484] [2021-10-13 00:53:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:39,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:39,161 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:39,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:39,179 INFO L82 PathProgramCache]: Analyzing trace with hash 32749084, now seen corresponding path program 1 times [2021-10-13 00:53:39,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:39,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62320518] [2021-10-13 00:53:39,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:39,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:53:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:53:39,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:53:39,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62320518] [2021-10-13 00:53:39,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62320518] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:53:39,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:53:39,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:53:39,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833843060] [2021-10-13 00:53:39,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:53:39,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:53:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:53:39,600 INFO L87 Difference]: Start difference. First operand has 75 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 74 states have internal predecessors, (114), 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:39,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:53:39,848 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2021-10-13 00:53:39,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:53:39,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 103 transitions. [2021-10-13 00:53:39,870 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:53:39,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 68 states and 96 transitions. [2021-10-13 00:53:39,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-10-13 00:53:39,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2021-10-13 00:53:39,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 96 transitions. [2021-10-13 00:53:39,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:53:39,880 INFO L681 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-13 00:53:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 96 transitions. [2021-10-13 00:53:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-13 00:53:39,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.411764705882353) internal successors, (96), 67 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2021-10-13 00:53:39,918 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-13 00:53:39,919 INFO L587 BuchiCegarLoop]: Abstraction has 68 states and 96 transitions. [2021-10-13 00:53:39,919 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:53:39,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 96 transitions. [2021-10-13 00:53:39,921 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 00:53:39,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:53:39,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:53:39,923 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:53:39,923 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:39,923 INFO L791 eck$LassoCheckResult]: Stem: 232#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 220#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; 202#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 187#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 188#L498 assume 0 != main_~tmp~3; 201#L471 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, 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; 168#L884-1 [2021-10-13 00:53:39,924 INFO L793 eck$LassoCheckResult]: Loop: 168#L884-1 assume !false; 169#L558 assume test_~splverifierCounter~0 < 4; 223#L559 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 224#L567 assume !(0 != test_~tmp~4); 204#L567-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 205#L577 assume !(0 != test_~tmp___0~0); 227#L577-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 228#L587 assume 0 != test_~tmp___2~0; 190#L593-2 assume !(0 != ~pumpRunning~0); 176#L722 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 177#L754 assume !(0 == ~pumpRunning~0); 178#L729 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 214#L692 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 207#L884 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 168#L884-1 [2021-10-13 00:53:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:39,925 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:53:39,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:39,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482262631] [2021-10-13 00:53:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:39,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:39,988 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,057 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash -619428453, now seen corresponding path program 1 times [2021-10-13 00:53:40,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:40,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379577969] [2021-10-13 00:53:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:40,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:53:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:53:40,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:53:40,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379577969] [2021-10-13 00:53:40,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379577969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:53:40,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:53:40,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:53:40,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4326166] [2021-10-13 00:53:40,079 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:53:40,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:53:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:53:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:53:40,081 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:53:40,153 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2021-10-13 00:53:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:53:40,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 147 transitions. [2021-10-13 00:53:40,161 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-10-13 00:53:40,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 147 transitions. [2021-10-13 00:53:40,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 109 [2021-10-13 00:53:40,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2021-10-13 00:53:40,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 147 transitions. [2021-10-13 00:53:40,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:53:40,173 INFO L681 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-13 00:53:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 147 transitions. [2021-10-13 00:53:40,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-13 00:53:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.348623853211009) internal successors, (147), 108 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:53:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 147 transitions. [2021-10-13 00:53:40,193 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-13 00:53:40,194 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 147 transitions. [2021-10-13 00:53:40,195 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:53:40,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 147 transitions. [2021-10-13 00:53:40,197 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2021-10-13 00:53:40,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:53:40,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:53:40,200 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:53:40,200 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:53:40,201 INFO L791 eck$LassoCheckResult]: Stem: 424#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~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string51.base, #t~string51.offset, 1);call write~init~int(77, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(101, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(116, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(104, #t~string51.base, 4 + #t~string51.offset, 1);call write~init~int(58, #t~string51.base, 5 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 6 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string53.base, #t~string53.offset, 1);call write~init~int(82, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(73, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(84, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 4 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(75, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string57.base, #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 1 + #t~string57.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 410#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; 386#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 371#L542 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 372#L498 assume 0 != main_~tmp~3; 385#L471 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, 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; 392#L884-1 [2021-10-13 00:53:40,201 INFO L793 eck$LassoCheckResult]: Loop: 392#L884-1 assume !false; 442#L558 assume test_~splverifierCounter~0 < 4; 417#L559 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 418#L567 assume !(0 != test_~tmp~4); 388#L567-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 389#L577 assume !(0 != test_~tmp___0~0); 419#L577-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 420#L587 assume 0 != test_~tmp___2~0; 374#L593-2 assume !(0 != ~pumpRunning~0); 413#L722 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 359#L754 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 360#L700 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 407#L705 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 408#L856 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 411#L856-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 377#L862 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 378#L758 assume !(0 != processEnvironment_~tmp~5); 397#L729 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 446#L692 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 444#L884 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 392#L884-1 [2021-10-13 00:53:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:40,202 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:53:40,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:40,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988768627] [2021-10-13 00:53:40,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:40,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,274 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:40,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:40,366 INFO L82 PathProgramCache]: Analyzing trace with hash -22033881, now seen corresponding path program 1 times [2021-10-13 00:53:40,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:40,367 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440031828] [2021-10-13 00:53:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:40,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,412 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:40,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:40,413 INFO L82 PathProgramCache]: Analyzing trace with hash -7321907, now seen corresponding path program 1 times [2021-10-13 00:53:40,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:40,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544096884] [2021-10-13 00:53:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:40,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,473 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:40,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:54:46,361 WARN L207 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:55:53,944 WARN L207 SmtUtils]: Spent 31.94 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:55:54,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:55:54 BoogieIcfgContainer [2021-10-13 00:55:54,079 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:55:54,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:55:54,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:55:54,082 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:55:54,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:38" (3/4) ... [2021-10-13 00:55:54,085 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:55:54,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:55:54,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:55:54,143 INFO L168 Benchmark]: Toolchain (without parser) took 137595.91 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 50.3 MB in the beginning and 61.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,147 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:55:54,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.54 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 79.5 MB in the end (delta: -29.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.16 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 76.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,149 INFO L168 Benchmark]: Boogie Preprocessor took 43.98 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,149 INFO L168 Benchmark]: RCFGBuilder took 1068.66 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 64.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,152 INFO L168 Benchmark]: BuchiAutomizer took 135645.60 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 64.5 MB in the end (delta: 196.9 kB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,153 INFO L168 Benchmark]: Witness Printer took 58.68 ms. Allocated memory is still 134.2 MB. Free memory was 64.5 MB in the beginning and 61.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:55:54,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 25.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 646.54 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 50.0 MB in the beginning and 79.5 MB in the end (delta: -29.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.16 ms. Allocated memory is still 111.1 MB. Free memory was 79.5 MB in the beginning and 76.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.98 ms. Allocated memory is still 111.1 MB. Free memory was 76.6 MB in the beginning and 74.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1068.66 ms. Allocated memory is still 111.1 MB. Free memory was 74.5 MB in the beginning and 64.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135645.60 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 64.5 MB in the end (delta: 196.9 kB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. * Witness Printer took 58.68 ms. Allocated memory is still 134.2 MB. Free memory was 64.5 MB in the beginning and 61.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 134.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 40.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 209 SDtfs, 378 SDslu, 50 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 220.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 557]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18814} State at position 1 is {NULL=0, NULL=18825, NULL=0, NULL=18814, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4be2e569=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@404e65ff=0, NULL=18823, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7167166f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6313fa18=68, NULL=0, NULL=18826, NULL=18842, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b8fde6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32783e4e=0, methaneLevelCritical=0, NULL=18819, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7678eed1=0, tmp___0=0, NULL=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a7c5a31=0, tmp___1=0, NULL=18841, NULL=0, NULL=0, NULL=18833, NULL=18820, NULL=18839, cleanupTimeShifts=4, NULL=18838, NULL=18824, tmp___0=0, NULL=18840, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18822, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@141ff0e5=0, NULL=0, \result=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=18817, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=18830, NULL=18821, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18832, retValue_acc=1, \result=1, NULL=18835, NULL=18836, NULL=0, retValue_acc=0, NULL=18829, NULL=0, NULL=18816, tmp=1, retValue_acc=1, tmp___2=68, NULL=0, NULL=18818, NULL=18815, tmp=1, splverifierCounter=0, NULL=0, NULL=18837, NULL=18828, head=0, NULL=0, NULL=0, tmp=0, NULL=18831, NULL=0, NULL=0, NULL=18827, NULL=18834} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L617] int waterLevel = 1; [L618] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; [L489] int retValue_acc ; [L490] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 Loop: [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L722] COND FALSE !(\read(pumpRunning)) [L729] COND TRUE \read(systemActive) [L751] int tmp ; [L754] COND TRUE ! pumpRunning [L848] int retValue_acc ; [L849] int tmp ; [L850] int tmp___0 ; [L697] int retValue_acc ; [L700] COND TRUE waterLevel < 2 [L701] retValue_acc = 1 [L702] return (retValue_acc); [L854] tmp = isHighWaterSensorDry() [L856] COND TRUE \read(tmp) [L857] tmp___0 = 0 [L861] retValue_acc = tmp___0 [L862] return (retValue_acc); [L756] tmp = isHighWaterLevel() [L758] COND FALSE !(\read(tmp)) [L877] int tmp ; [L878] int tmp___0 ; [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:55:54,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e74741ee-e53a-4f5f-adc5-977977d8068a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...