./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.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_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/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_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/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_015069bf-0047-4d50-927f-13dc831d31bc/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 b5dff7e23c934557e9ced576d0fb2c51e79caabf .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:10:44,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:10:44,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:10:44,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:10:44,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:10:44,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:10:44,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:10:44,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:10:44,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:10:44,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:10:44,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:10:44,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:10:44,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:10:44,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:10:44,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:10:44,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:10:44,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:10:44,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:10:44,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:10:44,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:10:44,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:10:44,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:10:44,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:10:44,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:10:44,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:10:44,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:10:44,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:10:44,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:10:44,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:10:44,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:10:44,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:10:44,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:10:44,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:10:44,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:10:44,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:10:44,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:10:44,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:10:44,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:10:44,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:10:44,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:10:44,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:10:44,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:10:44,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:10:44,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:10:44,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:10:44,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:10:44,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:10:44,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:10:44,719 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:10:44,719 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:10:44,719 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:10:44,720 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:10:44,720 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:10:44,721 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:10:44,721 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:10:44,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:10:44,722 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:10:44,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:10:44,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:10:44,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:10:44,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:10:44,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:10:44,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:10:44,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:10:44,724 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:10:44,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:10:44,724 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:10:44,724 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:10:44,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:10:44,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:10:44,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:10:44,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:10:44,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:10:44,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:10:44,727 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:10:44,727 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_015069bf-0047-4d50-927f-13dc831d31bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5dff7e23c934557e9ced576d0fb2c51e79caabf [2021-10-13 01:10:44,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:10:44,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:10:44,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:10:44,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:10:44,977 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:10:44,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2021-10-13 01:10:45,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/data/5647e1556/e3ee7bc1f4c34213b05508f09a7012af/FLAG3c1e64475 [2021-10-13 01:10:45,514 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:10:45,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c [2021-10-13 01:10:45,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/data/5647e1556/e3ee7bc1f4c34213b05508f09a7012af/FLAG3c1e64475 [2021-10-13 01:10:45,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/data/5647e1556/e3ee7bc1f4c34213b05508f09a7012af [2021-10-13 01:10:45,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:10:45,861 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:10:45,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:10:45,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:10:45,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:10:45,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:45" (1/1) ... [2021-10-13 01:10:45,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a390c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:45, skipping insertion in model container [2021-10-13 01:10:45,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:45" (1/1) ... [2021-10-13 01:10:45,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:10:45,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:10:46,185 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_015069bf-0047-4d50-927f-13dc831d31bc/sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c[12347,12360] [2021-10-13 01:10:46,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:10:46,230 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:10:46,319 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_015069bf-0047-4d50-927f-13dc831d31bc/sv-benchmarks/c/product-lines/minepump_spec5_product26.cil.c[12347,12360] [2021-10-13 01:10:46,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:10:46,382 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:10:46,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46 WrapperNode [2021-10-13 01:10:46,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:10:46,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:10:46,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:10:46,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:10:46,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:10:46,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:10:46,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:10:46,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:10:46,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:10:46,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:10:46,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:10:46,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:10:46,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (1/1) ... [2021-10-13 01:10:46,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:10:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:10:46,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:10:46,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:10:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:10:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:10:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:10:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:10:47,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:10:47,491 INFO L299 CfgBuilder]: Removed 112 assume(true) statements. [2021-10-13 01:10:47,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:47 BoogieIcfgContainer [2021-10-13 01:10:47,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:10:47,495 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:10:47,495 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:10:47,498 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:10:47,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:47,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:10:45" (1/3) ... [2021-10-13 01:10:47,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e1579cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:10:47, skipping insertion in model container [2021-10-13 01:10:47,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:47,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:46" (2/3) ... [2021-10-13 01:10:47,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e1579cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:10:47, skipping insertion in model container [2021-10-13 01:10:47,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:10:47,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:47" (3/3) ... [2021-10-13 01:10:47,503 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product26.cil.c [2021-10-13 01:10:47,551 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:10:47,551 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:10:47,552 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:10:47,552 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:10:47,552 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:10:47,552 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:10:47,552 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:10:47,552 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:10:47,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 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 01:10:47,606 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 01:10:47,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:47,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:47,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:47,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:47,613 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:10:47,614 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 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 01:10:47,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 01:10:47,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:47,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:47,621 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:47,622 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:47,626 INFO L791 eck$LassoCheckResult]: Stem: 63#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);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(21);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(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 48#L-1true havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 8#L795true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 29#L803true main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 58#L892true assume 0 != main_~tmp~7; 50#L867true ~switchedOnBeforeTS~0 := 0; 59#L912true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 54#L933-1true [2021-10-13 01:10:47,626 INFO L793 eck$LassoCheckResult]: Loop: 54#L933-1true assume !false; 10#L714true assume test_~splverifierCounter~0 < 4; 17#L715true test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 76#L723true assume !(0 != test_~tmp~6); 61#L723-1true test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 40#L733true assume !(0 != test_~tmp___0~1); 7#L733-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 69#L743true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L751-2true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 36#L634true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 65#L922true assume !(0 != ~pumpRunning~0); 49#L531true assume !(0 != ~systemActive~0); 51#L538true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 20#L124true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 28#L933true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 54#L933-1true [2021-10-13 01:10:47,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:47,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 01:10:47,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:47,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702221155] [2021-10-13 01:10:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:47,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:47,917 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:48,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:48,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:48,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1011284045, now seen corresponding path program 1 times [2021-10-13 01:10:48,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:48,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492851356] [2021-10-13 01:10:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:48,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:48,176 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 01:10:48,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:48,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492851356] [2021-10-13 01:10:48,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492851356] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:48,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:48,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:48,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421900815] [2021-10-13 01:10:48,187 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:10:48,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:48,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:10:48,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:10:48,208 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:10:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:48,261 INFO L93 Difference]: Finished difference Result 81 states and 110 transitions. [2021-10-13 01:10:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:10:48,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 110 transitions. [2021-10-13 01:10:48,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 01:10:48,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2021-10-13 01:10:48,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2021-10-13 01:10:48,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-10-13 01:10:48,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2021-10-13 01:10:48,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:10:48,288 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 01:10:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2021-10-13 01:10:48,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-13 01:10:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 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 01:10:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2021-10-13 01:10:48,328 INFO L704 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 01:10:48,328 INFO L587 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 01:10:48,328 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:10:48,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2021-10-13 01:10:48,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 01:10:48,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:48,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:48,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:48,335 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 01:10:48,336 INFO L791 eck$LassoCheckResult]: Stem: 239#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);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(21);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(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 230#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 179#L795 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 180#L803 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 212#L892 assume 0 != main_~tmp~7; 232#L867 ~switchedOnBeforeTS~0 := 0; 233#L912 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 206#L933-1 [2021-10-13 01:10:48,337 INFO L793 eck$LassoCheckResult]: Loop: 206#L933-1 assume !false; 183#L714 assume test_~splverifierCounter~0 < 4; 184#L715 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 196#L723 assume !(0 != test_~tmp~6); 237#L723-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 223#L733 assume !(0 != test_~tmp___0~1); 177#L733-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 178#L743 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 181#L751-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 182#L634 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 220#L922 assume !(0 != ~pumpRunning~0); 228#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 229#L563 assume !(0 != ~pumpRunning~0); 231#L538 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 200#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 201#L933 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 206#L933-1 [2021-10-13 01:10:48,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:48,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 01:10:48,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:48,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258283062] [2021-10-13 01:10:48,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:48,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:48,436 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:48,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:48,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:48,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1258041219, now seen corresponding path program 1 times [2021-10-13 01:10:48,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:48,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945166888] [2021-10-13 01:10:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:48,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:48,558 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:48,571 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1083280585, now seen corresponding path program 1 times [2021-10-13 01:10:48,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:48,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214599775] [2021-10-13 01:10:48,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:48,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:10:48,680 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 01:10:48,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:10:48,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214599775] [2021-10-13 01:10:48,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214599775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:10:48,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:10:48,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:10:48,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324732051] [2021-10-13 01:10:48,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:10:48,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:10:48,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:10:48,910 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 01:10:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:10:49,084 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-10-13 01:10:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:10:49,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-10-13 01:10:49,087 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-13 01:10:49,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2021-10-13 01:10:49,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2021-10-13 01:10:49,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2021-10-13 01:10:49,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2021-10-13 01:10:49,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:10:49,093 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2021-10-13 01:10:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2021-10-13 01:10:49,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2021-10-13 01:10:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 140 states have internal predecessors, (190), 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 01:10:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2021-10-13 01:10:49,107 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-13 01:10:49,107 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-13 01:10:49,107 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:10:49,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2021-10-13 01:10:49,109 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-13 01:10:49,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:10:49,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:10:49,110 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:49,110 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:10:49,110 INFO L791 eck$LassoCheckResult]: Stem: 555#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);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(21);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(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(13);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string62.base, #t~string62.offset, 1);call write~init~int(80, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(117, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(109, #t~string62.base, 3 + #t~string62.offset, 1);call write~init~int(112, #t~string62.base, 4 + #t~string62.offset, 1);call write~init~int(58, #t~string62.base, 5 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 6 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string68.base, #t~string68.offset, 1);call write~init~int(32, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string70.base, #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 1 + #t~string70.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0; 539#L-1 havoc main_#res;havoc main_#t~ret77, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 479#L795 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 480#L803 main_#t~ret77 := valid_product_#res;main_~tmp~7 := main_#t~ret77;havoc main_#t~ret77; 514#L892 assume 0 != main_~tmp~7; 542#L867 ~switchedOnBeforeTS~0 := 0; 543#L912 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 507#L933-1 [2021-10-13 01:10:49,110 INFO L793 eck$LassoCheckResult]: Loop: 507#L933-1 assume !false; 483#L714 assume test_~splverifierCounter~0 < 4; 484#L715 test_~tmp~6 := test_#t~nondet72;havoc test_#t~nondet72; 497#L723 assume !(0 != test_~tmp~6); 610#L723-1 test_~tmp___0~1 := test_#t~nondet73;havoc test_#t~nondet73; 609#L733 assume !(0 != test_~tmp___0~1); 607#L733-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 606#L743 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 481#L751-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 482#L634 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 526#L922 assume !(0 != ~pumpRunning~0); 540#L531 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 541#L563 assume !(0 != ~pumpRunning~0); 547#L538 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 597#L124 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 510#L933 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 511#L634-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 505#L937 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 507#L933-1 [2021-10-13 01:10:49,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:49,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 01:10:49,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:49,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983404300] [2021-10-13 01:10:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:49,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,171 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:49,263 INFO L82 PathProgramCache]: Analyzing trace with hash 2091787166, now seen corresponding path program 1 times [2021-10-13 01:10:49,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:49,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81343428] [2021-10-13 01:10:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:49,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,275 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,282 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:10:49,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:10:49,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1650542436, now seen corresponding path program 1 times [2021-10-13 01:10:49,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:10:49,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554639442] [2021-10-13 01:10:49,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:10:49,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:10:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,321 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:10:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:10:49,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:11:47,018 WARN L207 SmtUtils]: Spent 57.41 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:12:45,264 WARN L207 SmtUtils]: Spent 28.30 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:12:45,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:12:45 BoogieIcfgContainer [2021-10-13 01:12:45,417 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:12:45,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:12:45,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:12:45,418 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:12:45,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:47" (3/4) ... [2021-10-13 01:12:45,421 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:12:45,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:12:45,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:12:45,486 INFO L168 Benchmark]: Toolchain (without parser) took 119623.80 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 71.6 MB in the beginning and 65.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 62.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,486 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory was 60.0 MB in the beginning and 60.0 MB in the end (delta: 62.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:12:45,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.21 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 70.7 MB in the end (delta: 614.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.61 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 67.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,488 INFO L168 Benchmark]: Boogie Preprocessor took 46.78 ms. Allocated memory is still 104.9 MB. Free memory was 67.7 MB in the beginning and 65.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,488 INFO L168 Benchmark]: RCFGBuilder took 986.44 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 65.3 MB in the beginning and 87.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,489 INFO L168 Benchmark]: BuchiAutomizer took 117922.24 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 86.9 MB in the beginning and 68.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,489 INFO L168 Benchmark]: Witness Printer took 67.35 ms. Allocated memory is still 161.5 MB. Free memory was 68.1 MB in the beginning and 65.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:12:45,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory was 60.0 MB in the beginning and 60.0 MB in the end (delta: 62.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.21 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 70.7 MB in the end (delta: 614.5 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.61 ms. Allocated memory is still 104.9 MB. Free memory was 70.7 MB in the beginning and 67.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.78 ms. Allocated memory is still 104.9 MB. Free memory was 67.7 MB in the beginning and 65.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 986.44 ms. Allocated memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: 29.4 MB). Free memory was 65.3 MB in the beginning and 87.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 117922.24 ms. Allocated memory was 134.2 MB in the beginning and 161.5 MB in the end (delta: 27.3 MB). Free memory was 86.9 MB in the beginning and 68.1 MB in the end (delta: 18.8 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. * Witness Printer took 67.35 ms. Allocated memory is still 161.5 MB. Free memory was 68.1 MB in the beginning and 65.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 117.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 117.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 38.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 263 SDtfs, 426 SDslu, 298 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 713]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32046} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=32065, NULL=0, NULL=32046, NULL=32053, NULL=0, NULL=0, NULL=0, NULL=0, NULL=32067, NULL=32074, NULL=32051, methaneLevelCritical=0, NULL=32061, NULL=32066, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8e5e241=0, retValue_acc=1, tmp=1, NULL=0, tmp=0, NULL=0, NULL=32049, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cc1f829=0, NULL=32059, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@563466c1=0, NULL=32071, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68ef4ee=0, switchedOnBeforeTS=0, NULL=32054, NULL=32058, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=32064, NULL=0, NULL=0, NULL=32063, NULL=0, NULL=32069, NULL=32055, NULL=32073, NULL=0, NULL=0, retValue_acc=0, NULL=32060, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp___0=0, NULL=32062, \result=0, NULL=0, NULL=32047, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4003bb66=0, NULL=32052, NULL=32050, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3d61cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42d5fefd=76, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e40fd5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f9e0a79=0, NULL=32072, tmp___2=76, tmp___0=0, splverifierCounter=0, NULL=0, NULL=32070, NULL=32056, tmp=0, head=0, NULL=0, NULL=0, NULL=32057, NULL=32068, NULL=32048, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L307] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L519] int pumpRunning = 0; [L520] int systemActive = 1; [L808] int cleanupTimeShifts = 4; [L906] int switchedOnBeforeTS ; [L883] int retValue_acc ; [L884] int tmp ; [L799] int retValue_acc ; [L802] retValue_acc = 1 [L803] return (retValue_acc); [L890] tmp = valid_product() [L892] COND TRUE \read(tmp) [L911] switchedOnBeforeTS = 0 [L704] int splverifierCounter ; [L705] int tmp ; [L706] int tmp___0 ; [L707] int tmp___1 ; [L708] int tmp___2 ; [L711] splverifierCounter = 0 Loop: [L713] COND TRUE 1 [L715] COND TRUE splverifierCounter < 4 [L721] tmp = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp)) [L731] tmp___0 = __VERIFIER_nondet_int() [L733] COND FALSE !(\read(tmp___0)) [L741] tmp___2 = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp___2) [L697] systemActive = 1 [L630] int retValue_acc ; [L633] retValue_acc = pumpRunning [L634] return (retValue_acc); [L920] switchedOnBeforeTS = isPumpRunning() [L531] COND FALSE !(\read(pumpRunning)) [L538] COND TRUE \read(systemActive) [L560] int tmp ; [L563] COND FALSE !(\read(pumpRunning)) [L926] int tmp ; [L927] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L931] tmp = getWaterLevel() [L933] COND TRUE tmp != 2 [L630] int retValue_acc ; [L633] retValue_acc = pumpRunning [L634] return (retValue_acc); [L935] tmp___0 = isPumpRunning() [L937] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:12:45,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015069bf-0047-4d50-927f-13dc831d31bc/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...