./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/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_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/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_0d213a7d-4048-48ce-844d-c4ad7dc67188/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 6dd4e2379545062b6cfdf03e26feb426fb16a9fa .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:40:25,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:40:25,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:40:25,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:40:25,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:40:25,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:40:25,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:40:25,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:40:25,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:40:25,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:40:25,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:40:25,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:40:25,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:40:25,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:40:25,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:40:25,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:40:25,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:40:25,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:40:25,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:40:25,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:40:25,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:40:25,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:40:25,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:40:25,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:40:25,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:40:25,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:40:25,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:40:25,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:40:25,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:40:25,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:40:25,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:40:25,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:40:25,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:40:25,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:40:25,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:40:25,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:40:25,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:40:25,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:40:25,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:40:25,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:40:25,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:40:25,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:40:25,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:40:25,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:40:25,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:40:25,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:40:25,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:40:25,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:40:25,551 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:40:25,552 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:40:25,552 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:40:25,552 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:40:25,553 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:40:25,553 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:40:25,553 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:40:25,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:40:25,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:40:25,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:40:25,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:40:25,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:40:25,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:40:25,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:40:25,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:40:25,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:40:25,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:40:25,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:40:25,557 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:40:25,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:40:25,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:40:25,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:40:25,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:40:25,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:40:25,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:40:25,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:40:25,560 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:40:25,561 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_0d213a7d-4048-48ce-844d-c4ad7dc67188/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4e2379545062b6cfdf03e26feb426fb16a9fa [2021-10-13 00:40:25,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:40:25,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:40:25,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:40:25,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:40:25,965 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:40:25,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-10-13 00:40:26,096 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/data/cd6e9a115/a164ec74bd484549863cf26c676f4d5c/FLAGfc2b68078 [2021-10-13 00:40:26,771 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:40:26,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-10-13 00:40:26,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/data/cd6e9a115/a164ec74bd484549863cf26c676f4d5c/FLAGfc2b68078 [2021-10-13 00:40:27,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/data/cd6e9a115/a164ec74bd484549863cf26c676f4d5c [2021-10-13 00:40:27,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:40:27,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:40:27,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:27,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:40:27,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:40:27,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fabb03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27, skipping insertion in model container [2021-10-13 00:40:27,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:40:27,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:40:27,355 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_0d213a7d-4048-48ce-844d-c4ad7dc67188/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1281,1294] [2021-10-13 00:40:27,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:27,511 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:40:27,545 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_0d213a7d-4048-48ce-844d-c4ad7dc67188/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1281,1294] [2021-10-13 00:40:27,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:40:27,667 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:40:27,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27 WrapperNode [2021-10-13 00:40:27,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:40:27,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:27,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:40:27,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:40:27,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:40:27,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:40:27,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:40:27,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:40:27,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:40:27,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:40:27,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:40:27,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:40:27,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (1/1) ... [2021-10-13 00:40:27,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:40:27,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:27,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:40:27,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:40:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:40:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:40:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:40:27,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:40:29,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:40:29,113 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-10-13 00:40:29,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:29 BoogieIcfgContainer [2021-10-13 00:40:29,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:40:29,120 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:40:29,120 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:40:29,124 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:40:29,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:40:29,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:40:27" (1/3) ... [2021-10-13 00:40:29,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ec99bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:40:29, skipping insertion in model container [2021-10-13 00:40:29,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:40:29,128 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:40:27" (2/3) ... [2021-10-13 00:40:29,128 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ec99bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:40:29, skipping insertion in model container [2021-10-13 00:40:29,129 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:40:29,129 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:29" (3/3) ... [2021-10-13 00:40:29,131 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2021-10-13 00:40:29,203 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:40:29,203 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:40:29,204 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:40:29,204 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:40:29,204 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:40:29,204 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:40:29,204 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:40:29,205 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:40:29,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:29,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:40:29,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:40:29,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:40:29,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:29,274 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:29,274 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:40:29,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:29,283 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:40:29,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:40:29,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:40:29,285 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:29,285 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:29,291 INFO L791 eck$LassoCheckResult]: Stem: 67#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 52#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 33#L545true 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; 12#L553true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 42#L143true assume 0 != main_~tmp~0; 71#L114true ~switchedOnBeforeTS~0 := 0; 44#L906true 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; 21#L927-1true [2021-10-13 00:40:29,292 INFO L793 eck$LassoCheckResult]: Loop: 21#L927-1true assume !false; 51#L570true assume test_~splverifierCounter~0 < 4; 72#L571true test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 14#L579true assume !(0 != test_~tmp~4); 13#L579-1true test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 16#L589true assume !(0 != test_~tmp___0~0); 45#L589-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 84#L599true assume 0 != test_~tmp___2~0; 64#L605-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 79#L825true __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; 63#L916true assume !(0 != ~pumpRunning~0); 57#L740true assume !(0 != ~systemActive~0); 15#L747true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~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; 56#L706true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 18#L927true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 21#L927-1true [2021-10-13 00:40:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:29,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:40:29,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:29,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763750471] [2021-10-13 00:40:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:29,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:29,755 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:29,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:29,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:29,989 INFO L82 PathProgramCache]: Analyzing trace with hash -241799531, now seen corresponding path program 1 times [2021-10-13 00:40:29,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:29,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612335173] [2021-10-13 00:40:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:29,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:30,007 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:30,026 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:30,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1692225679, now seen corresponding path program 1 times [2021-10-13 00:40:30,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:30,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362303061] [2021-10-13 00:40:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:30,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:30,248 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 00:40:30,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:30,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362303061] [2021-10-13 00:40:30,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362303061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:30,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:30,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:40:30,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738052174] [2021-10-13 00:40:30,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:40:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:40:30,525 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2021-10-13 00:40:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:30,852 INFO L93 Difference]: Finished difference Result 223 states and 310 transitions. [2021-10-13 00:40:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:40:30,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 310 transitions. [2021-10-13 00:40:30,872 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 143 [2021-10-13 00:40:30,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 202 states and 289 transitions. [2021-10-13 00:40:30,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 202 [2021-10-13 00:40:30,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 202 [2021-10-13 00:40:30,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 202 states and 289 transitions. [2021-10-13 00:40:30,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:40:30,899 INFO L681 BuchiCegarLoop]: Abstraction has 202 states and 289 transitions. [2021-10-13 00:40:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states and 289 transitions. [2021-10-13 00:40:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2021-10-13 00:40:30,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 128 states have (on average 1.421875) internal successors, (182), 127 states have internal predecessors, (182), 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 00:40:30,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 182 transitions. [2021-10-13 00:40:30,962 INFO L704 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2021-10-13 00:40:30,963 INFO L587 BuchiCegarLoop]: Abstraction has 128 states and 182 transitions. [2021-10-13 00:40:30,963 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:40:30,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 128 states and 182 transitions. [2021-10-13 00:40:30,972 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 90 [2021-10-13 00:40:30,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:40:30,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:40:30,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:30,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:30,974 INFO L791 eck$LassoCheckResult]: Stem: 402#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 395#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 373#L545 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; 345#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 346#L143 assume 0 != main_~tmp~0; 384#L114 ~switchedOnBeforeTS~0 := 0; 385#L906 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; 336#L927-1 [2021-10-13 00:40:30,975 INFO L793 eck$LassoCheckResult]: Loop: 336#L927-1 assume !false; 359#L570 assume test_~splverifierCounter~0 < 4; 393#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 349#L579 assume !(0 != test_~tmp~4); 347#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 348#L589 assume !(0 != test_~tmp___0~0); 353#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 386#L599 assume 0 != test_~tmp___2~0; 399#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 400#L825 __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; 398#L916 assume !(0 != ~pumpRunning~0); 388#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 329#L772 assume !(0 == ~pumpRunning~0); 330#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~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; 351#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 355#L927 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 336#L927-1 [2021-10-13 00:40:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:30,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:40:30,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:30,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646437674] [2021-10-13 00:40:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:30,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:31,074 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:31,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:31,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1062538435, now seen corresponding path program 1 times [2021-10-13 00:40:31,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:31,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578238276] [2021-10-13 00:40:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:31,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:31,235 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 00:40:31,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:31,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578238276] [2021-10-13 00:40:31,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578238276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:31,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:31,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:40:31,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586594647] [2021-10-13 00:40:31,246 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:40:31,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:31,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:40:31,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:40:31,248 INFO L87 Difference]: Start difference. First operand 128 states and 182 transitions. cyclomatic complexity: 57 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) [2021-10-13 00:40:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:31,344 INFO L93 Difference]: Finished difference Result 175 states and 236 transitions. [2021-10-13 00:40:31,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:40:31,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 175 states and 236 transitions. [2021-10-13 00:40:31,350 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2021-10-13 00:40:31,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 175 states to 175 states and 236 transitions. [2021-10-13 00:40:31,354 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2021-10-13 00:40:31,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 175 [2021-10-13 00:40:31,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 236 transitions. [2021-10-13 00:40:31,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:40:31,364 INFO L681 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2021-10-13 00:40:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 236 transitions. [2021-10-13 00:40:31,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-10-13 00:40:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 175 states have (on average 1.3485714285714285) internal successors, (236), 174 states have internal predecessors, (236), 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 00:40:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 236 transitions. [2021-10-13 00:40:31,385 INFO L704 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2021-10-13 00:40:31,386 INFO L587 BuchiCegarLoop]: Abstraction has 175 states and 236 transitions. [2021-10-13 00:40:31,386 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:40:31,386 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states and 236 transitions. [2021-10-13 00:40:31,389 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 126 [2021-10-13 00:40:31,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:40:31,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:40:31,392 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:31,392 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] [2021-10-13 00:40:31,392 INFO L791 eck$LassoCheckResult]: Stem: 721#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 706#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 680#L545 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; 654#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 655#L143 assume 0 != main_~tmp~0; 694#L114 ~switchedOnBeforeTS~0 := 0; 696#L906 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; 697#L927-1 [2021-10-13 00:40:31,394 INFO L793 eck$LassoCheckResult]: Loop: 697#L927-1 assume !false; 787#L570 assume test_~splverifierCounter~0 < 4; 786#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 785#L579 assume !(0 != test_~tmp~4); 783#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 782#L589 assume !(0 != test_~tmp___0~0); 780#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 778#L599 assume 0 != test_~tmp___2~0; 777#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 776#L825 __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; 775#L916 assume !(0 != ~pumpRunning~0); 709#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 638#L772 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; 639#L714 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 636#L719 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 637#L874 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 662#L874-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 698#L880 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 692#L776 assume !(0 != processEnvironment_~tmp~5); 658#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~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; 659#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 791#L927 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 697#L927-1 [2021-10-13 00:40:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:40:31,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:31,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407188778] [2021-10-13 00:40:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:31,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:31,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:31,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:31,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1275481455, now seen corresponding path program 1 times [2021-10-13 00:40:31,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:31,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899349237] [2021-10-13 00:40:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:31,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:31,600 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 00:40:31,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:31,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899349237] [2021-10-13 00:40:31,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899349237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:40:31,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:40:31,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:40:31,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348849865] [2021-10-13 00:40:31,602 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:40:31,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:31,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:40:31,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:40:31,604 INFO L87 Difference]: Start difference. First operand 175 states and 236 transitions. cyclomatic complexity: 64 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) [2021-10-13 00:40:31,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:31,797 INFO L93 Difference]: Finished difference Result 446 states and 589 transitions. [2021-10-13 00:40:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:40:31,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 446 states and 589 transitions. [2021-10-13 00:40:31,807 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 307 [2021-10-13 00:40:31,812 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 446 states to 446 states and 589 transitions. [2021-10-13 00:40:31,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 446 [2021-10-13 00:40:31,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 446 [2021-10-13 00:40:31,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 446 states and 589 transitions. [2021-10-13 00:40:31,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:40:31,816 INFO L681 BuchiCegarLoop]: Abstraction has 446 states and 589 transitions. [2021-10-13 00:40:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states and 589 transitions. [2021-10-13 00:40:31,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 343. [2021-10-13 00:40:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 343 states have (on average 1.3119533527696794) internal successors, (450), 342 states have internal predecessors, (450), 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 00:40:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 450 transitions. [2021-10-13 00:40:31,857 INFO L704 BuchiCegarLoop]: Abstraction has 343 states and 450 transitions. [2021-10-13 00:40:31,857 INFO L587 BuchiCegarLoop]: Abstraction has 343 states and 450 transitions. [2021-10-13 00:40:31,857 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:40:31,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 343 states and 450 transitions. [2021-10-13 00:40:31,865 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 252 [2021-10-13 00:40:31,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:40:31,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:40:31,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:40:31,868 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] [2021-10-13 00:40:31,869 INFO L791 eck$LassoCheckResult]: Stem: 1355#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1344#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1318#L545 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; 1291#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 1292#L143 assume 0 != main_~tmp~0; 1332#L114 ~switchedOnBeforeTS~0 := 0; 1334#L906 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; 1335#L927-1 [2021-10-13 00:40:31,869 INFO L793 eck$LassoCheckResult]: Loop: 1335#L927-1 assume !false; 1570#L570 assume test_~splverifierCounter~0 < 4; 1569#L571 test_~tmp~4 := test_#t~nondet44;havoc test_#t~nondet44; 1566#L579 assume !(0 != test_~tmp~4); 1289#L579-1 test_~tmp___0~0 := test_#t~nondet45;havoc test_#t~nondet45; 1290#L589 assume !(0 != test_~tmp___0~0); 1299#L589-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1333#L599 assume 0 != test_~tmp___2~0; 1350#L605-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1351#L825 __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; 1349#L916 assume !(0 != ~pumpRunning~0); 1346#L740 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1275#L772 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; 1276#L714 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1273#L719 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 1274#L874 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1300#L874-2 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1338#L880 processEnvironment_#t~ret58 := isHighWaterLevel_#res;processEnvironment_~tmp~5 := processEnvironment_#t~ret58;havoc processEnvironment_#t~ret58; 1329#L776 assume !(0 != processEnvironment_~tmp~5); 1331#L747 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~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; 1584#L706 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1583#L927 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 1582#L825-1 __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; 1581#L931 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 1335#L927-1 [2021-10-13 00:40:31,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:31,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-13 00:40:31,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:31,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119018610] [2021-10-13 00:40:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:31,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:31,946 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:32,005 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:32,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:32,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1671985194, now seen corresponding path program 1 times [2021-10-13 00:40:32,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:32,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438870308] [2021-10-13 00:40:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:32,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:32,018 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:32,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:40:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:32,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1531391856, now seen corresponding path program 1 times [2021-10-13 00:40:32,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:32,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491281840] [2021-10-13 00:40:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:32,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:32,099 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:40:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:40:32,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:41:38,639 WARN L207 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:42:34,829 WARN L207 SmtUtils]: Spent 27.22 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:42:34,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:42:34 BoogieIcfgContainer [2021-10-13 00:42:34,962 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:42:34,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:42:34,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:42:34,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:42:34,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:40:29" (3/4) ... [2021-10-13 00:42:34,968 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:42:35,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:42:35,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:42:35,016 INFO L168 Benchmark]: Toolchain (without parser) took 127984.98 ms. Allocated memory was 81.8 MB in the beginning and 142.6 MB in the end (delta: 60.8 MB). Free memory was 45.9 MB in the beginning and 101.5 MB in the end (delta: -55.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,017 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:42:35,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.97 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 45.6 MB in the beginning and 85.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.79 ms. Allocated memory is still 117.4 MB. Free memory was 85.5 MB in the beginning and 82.3 MB in the end (delta: 3.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:42:35,018 INFO L168 Benchmark]: Boogie Preprocessor took 48.07 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,019 INFO L168 Benchmark]: RCFGBuilder took 1289.36 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 73.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,020 INFO L168 Benchmark]: BuchiAutomizer took 125842.47 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 73.2 MB in the beginning and 104.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,020 INFO L168 Benchmark]: Witness Printer took 52.91 ms. Allocated memory is still 142.6 MB. Free memory was 104.5 MB in the beginning and 101.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:42:35,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.97 ms. Allocated memory was 81.8 MB in the beginning and 117.4 MB in the end (delta: 35.7 MB). Free memory was 45.6 MB in the beginning and 85.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.79 ms. Allocated memory is still 117.4 MB. Free memory was 85.5 MB in the beginning and 82.3 MB in the end (delta: 3.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.07 ms. Allocated memory is still 117.4 MB. Free memory was 82.3 MB in the beginning and 80.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1289.36 ms. Allocated memory is still 117.4 MB. Free memory was 80.2 MB in the beginning and 73.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 125842.47 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 73.2 MB in the beginning and 104.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.91 ms. Allocated memory is still 142.6 MB. Free memory was 104.5 MB in the beginning and 101.5 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 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 343 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 125.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 124.7s. Construction of modules took 0.3s. 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 106.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 177 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 343 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 377 SDtfs, 986 SDslu, 931 SDs, 0 SdLazy, 134 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 331.4ms 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: 569]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=28597} State at position 1 is {NULL=0, NULL=28611, NULL=0, NULL=28597, NULL=28622, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1889d10b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f0b1b81=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21948cfb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@777996f3=0, methaneLevelCritical=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bbeda97=0, tmp___1=0, NULL=28623, NULL=0, NULL=28604, NULL=28618, retValue_acc=0, cleanupTimeShifts=4, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, tmp___0=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=28602, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23611733=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@625e73b8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@148e8305=0, \result=1, NULL=28609, NULL=0, retValue_acc=0, NULL=28628, NULL=0, retValue_acc=1, NULL=0, NULL=28625, NULL=28598, tmp=1, NULL=28627, head=0, NULL=0, NULL=0, tmp=0, NULL=28606, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=28601, NULL=28626, NULL=28599, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@b8b9b34=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=28613, switchedOnBeforeTS=0, NULL=28603, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5239f8a2=0, \result=0, NULL=28612, NULL=0, NULL=0, systemActive=1, NULL=28605, \result=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=28610, tmp___0=0, NULL=28615, \result=0, NULL=0, NULL=28607, retValue_acc=1, NULL=28616, NULL=28608, tmp___2=71, splverifierCounter=0, NULL=0, NULL=28624, NULL=28617, NULL=28600, NULL=28614} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int cleanupTimeShifts = 4; [L326] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int waterLevel = 1; [L632] int methaneLevelCritical = 0; [L728] int pumpRunning = 0; [L729] int systemActive = 1; [L900] int switchedOnBeforeTS ; [L134] int retValue_acc ; [L135] int tmp ; [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L141] tmp = valid_product() [L143] COND TRUE \read(tmp) [L905] switchedOnBeforeTS = 0 [L560] int splverifierCounter ; [L561] int tmp ; [L562] int tmp___0 ; [L563] int tmp___1 ; [L564] int tmp___2 ; [L567] splverifierCounter = 0 Loop: [L569] COND TRUE 1 [L571] COND TRUE splverifierCounter < 4 [L577] tmp = __VERIFIER_nondet_int() [L579] COND FALSE !(\read(tmp)) [L587] tmp___0 = __VERIFIER_nondet_int() [L589] COND FALSE !(\read(tmp___0)) [L597] tmp___2 = __VERIFIER_nondet_int() [L599] COND TRUE \read(tmp___2) [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L914] switchedOnBeforeTS = isPumpRunning() [L740] COND FALSE !(\read(pumpRunning)) [L747] COND TRUE \read(systemActive) [L769] int tmp ; [L772] COND TRUE ! pumpRunning [L866] int retValue_acc ; [L867] int tmp ; [L868] int tmp___0 ; [L711] int retValue_acc ; [L714] COND TRUE waterLevel < 2 [L715] retValue_acc = 1 [L716] return (retValue_acc); [L872] tmp = isHighWaterSensorDry() [L874] COND TRUE \read(tmp) [L875] tmp___0 = 0 [L879] retValue_acc = tmp___0 [L880] return (retValue_acc); [L774] tmp = isHighWaterLevel() [L776] COND FALSE !(\read(tmp)) [L920] int tmp ; [L921] int tmp___0 ; [L702] int retValue_acc ; [L705] retValue_acc = waterLevel [L706] return (retValue_acc); [L925] tmp = getWaterLevel() [L927] COND TRUE tmp != 2 [L821] int retValue_acc ; [L824] retValue_acc = pumpRunning [L825] return (retValue_acc); [L929] tmp___0 = isPumpRunning() [L931] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:42:35,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d213a7d-4048-48ce-844d-c4ad7dc67188/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...