./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/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 f9e2a44dd4ad6e5efbee2b83f956ad3fce45b6fa .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:26:17,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:26:17,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:26:17,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:26:17,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:26:17,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:26:17,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:26:17,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:26:17,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:26:17,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:26:17,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:26:17,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:26:17,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:26:17,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:26:17,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:26:17,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:26:17,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:26:17,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:26:17,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:26:17,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:26:17,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:26:17,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:26:17,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:26:17,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:26:17,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:26:17,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:26:17,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:26:17,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:26:17,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:26:17,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:26:17,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:26:17,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:26:17,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:26:17,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:26:17,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:26:17,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:26:17,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:26:17,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:26:17,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:26:17,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:26:17,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:26:17,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:26:17,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:26:17,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:26:17,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:26:17,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:26:17,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:26:17,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:26:17,233 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:26:17,233 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:26:17,233 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:26:17,234 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:26:17,234 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:26:17,234 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:26:17,234 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:26:17,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:26:17,235 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:26:17,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:26:17,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:26:17,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:26:17,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:26:17,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:26:17,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:26:17,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:26:17,237 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:26:17,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:26:17,238 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:26:17,238 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:26:17,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:26:17,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:26:17,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:26:17,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:26:17,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:26:17,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:26:17,241 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:26:17,242 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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9e2a44dd4ad6e5efbee2b83f956ad3fce45b6fa [2021-10-13 00:26:17,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:26:17,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:26:17,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:26:17,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:26:17,630 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:26:17,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2021-10-13 00:26:17,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/data/2238f452b/13cf6fa6514e42e6948b75abb4756fdf/FLAG32790611d [2021-10-13 00:26:18,384 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:26:18,385 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c [2021-10-13 00:26:18,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/data/2238f452b/13cf6fa6514e42e6948b75abb4756fdf/FLAG32790611d [2021-10-13 00:26:18,652 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/data/2238f452b/13cf6fa6514e42e6948b75abb4756fdf [2021-10-13 00:26:18,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:26:18,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:26:18,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:26:18,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:26:18,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:26:18,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:18" (1/1) ... [2021-10-13 00:26:18,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3588dded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:18, skipping insertion in model container [2021-10-13 00:26:18,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:26:18" (1/1) ... [2021-10-13 00:26:18,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:26:18,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:26:19,123 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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c[12348,12361] [2021-10-13 00:26:19,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:26:19,233 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:26:19,338 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_ceb2d9d1-b646-4f7c-b266-c088662fdb34/sv-benchmarks/c/product-lines/minepump_spec5_product17.cil.c[12348,12361] [2021-10-13 00:26:19,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:26:19,424 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:26:19,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19 WrapperNode [2021-10-13 00:26:19,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:26:19,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:26:19,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:26:19,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:26:19,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:26:19,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:26:19,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:26:19,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:26:19,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:26:19,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:26:19,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:26:19,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:26:19,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (1/1) ... [2021-10-13 00:26:19,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:26:19,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:26:19,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:26:19,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:26:19,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:26:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:26:19,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:26:19,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:26:20,896 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:26:20,897 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-10-13 00:26:20,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:26:20 BoogieIcfgContainer [2021-10-13 00:26:20,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:26:20,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:26:20,905 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:26:20,913 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:26:20,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:26:20,915 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:26:18" (1/3) ... [2021-10-13 00:26:20,917 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7792e557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:26:20, skipping insertion in model container [2021-10-13 00:26:20,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:26:20,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:26:19" (2/3) ... [2021-10-13 00:26:20,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7792e557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:26:20, skipping insertion in model container [2021-10-13 00:26:20,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:26:20,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:26:20" (3/3) ... [2021-10-13 00:26:20,922 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product17.cil.c [2021-10-13 00:26:21,016 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:26:21,017 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:26:21,017 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:26:21,017 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:26:21,018 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:26:21,018 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:26:21,018 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:26:21,018 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:26:21,041 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 00:26:21,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 00:26:21,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:26:21,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:26:21,086 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:21,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:21,086 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:26:21,087 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 00:26:21,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-13 00:26:21,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:26:21,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:26:21,098 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:21,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:21,105 INFO L791 eck$LassoCheckResult]: Stem: 66#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 53#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; 15#L553true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 69#L134true assume 0 != main_~tmp~0; 28#L105true ~switchedOnBeforeTS~0 := 0; 54#L566true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L587-1true [2021-10-13 00:26:21,106 INFO L793 eck$LassoCheckResult]: Loop: 50#L587-1true assume !false; 20#L870true assume test_~splverifierCounter~0 < 4; 43#L871true test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 34#L879true assume !(0 != test_~tmp~7); 79#L879-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 13#L889true assume !(0 != test_~tmp___0~2); 7#L889-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 55#L899true assume 0 != test_~tmp___2~0; 56#L905-2true havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 75#L799true __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 31#L576true assume !(0 != ~pumpRunning~0); 11#L714true assume !(0 != ~systemActive~0); 24#L721true havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 44#L688true __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 81#L587true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 50#L587-1true [2021-10-13 00:26:21,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:21,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:26:21,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:21,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246769090] [2021-10-13 00:26:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:21,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:21,469 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:21,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:21,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:21,672 INFO L82 PathProgramCache]: Analyzing trace with hash 94196908, now seen corresponding path program 1 times [2021-10-13 00:26:21,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:21,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165167173] [2021-10-13 00:26:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:21,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:21,685 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:21,701 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:21,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:21,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2028222118, now seen corresponding path program 1 times [2021-10-13 00:26:21,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:21,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818159315] [2021-10-13 00:26:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:21,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:21,951 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 00:26:21,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:21,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818159315] [2021-10-13 00:26:21,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818159315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:21,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:21,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:26:21,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560602876] [2021-10-13 00:26:22,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:26:22,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:26:22,256 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 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 00:26:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:22,630 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2021-10-13 00:26:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:26:22,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2021-10-13 00:26:22,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 00:26:22,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2021-10-13 00:26:22,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2021-10-13 00:26:22,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-10-13 00:26:22,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2021-10-13 00:26:22,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:26:22,649 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 00:26:22,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2021-10-13 00:26:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-13 00:26:22,687 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 00:26:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2021-10-13 00:26:22,691 INFO L704 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 00:26:22,691 INFO L587 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-13 00:26:22,691 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:26:22,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2021-10-13 00:26:22,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 00:26:22,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:26:22,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:26:22,695 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:22,696 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 00:26:22,696 INFO L791 eck$LassoCheckResult]: Stem: 251#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 242#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; 230#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; 201#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 202#L134 assume 0 != main_~tmp~0; 225#L105 ~switchedOnBeforeTS~0 := 0; 226#L566 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 216#L587-1 [2021-10-13 00:26:22,697 INFO L793 eck$LassoCheckResult]: Loop: 216#L587-1 assume !false; 209#L870 assume test_~splverifierCounter~0 < 4; 210#L871 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 231#L879 assume !(0 != test_~tmp~7); 185#L879-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 196#L889 assume !(0 != test_~tmp___0~2); 186#L889-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 187#L899 assume 0 != test_~tmp___2~0; 244#L905-2 havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 245#L799 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 229#L576 assume !(0 != ~pumpRunning~0); 192#L714 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 193#L746 assume !(0 != ~pumpRunning~0); 217#L721 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 218#L688 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 236#L587 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4); 216#L587-1 [2021-10-13 00:26:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:22,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:26:22,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:22,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069355814] [2021-10-13 00:26:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:22,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:22,832 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:22,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:22,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1401856253, now seen corresponding path program 1 times [2021-10-13 00:26:22,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:22,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658195042] [2021-10-13 00:26:22,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:22,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:22,964 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:22,974 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:22,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:22,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1576616887, now seen corresponding path program 1 times [2021-10-13 00:26:22,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:22,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054869356] [2021-10-13 00:26:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:22,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:26:23,047 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 00:26:23,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:26:23,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054869356] [2021-10-13 00:26:23,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054869356] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:26:23,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:26:23,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:26:23,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772785299] [2021-10-13 00:26:23,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:26:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:26:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:26:23,225 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 00:26:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:26:23,396 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-10-13 00:26:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:26:23,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-10-13 00:26:23,403 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-13 00:26:23,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2021-10-13 00:26:23,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2021-10-13 00:26:23,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2021-10-13 00:26:23,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2021-10-13 00:26:23,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:26:23,411 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2021-10-13 00:26:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2021-10-13 00:26:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2021-10-13 00:26:23,435 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 00:26:23,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2021-10-13 00:26:23,439 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-13 00:26:23,439 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-13 00:26:23,439 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:26:23,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2021-10-13 00:26:23,442 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-13 00:26:23,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:26:23,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:26:23,445 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:26:23,445 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 00:26:23,445 INFO L791 eck$LassoCheckResult]: Stem: 567#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~string48.base, #t~string48.offset := #Ultimate.allocOnStack(13);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string50.base, #t~string50.offset, 1);call write~init~int(77, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(101, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(116, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(104, #t~string50.base, 4 + #t~string50.offset, 1);call write~init~int(58, #t~string50.base, 5 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 6 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string52.base, #t~string52.offset, 1);call write~init~int(82, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(73, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(84, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 4 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(75, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 555#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; 538#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; 500#L553 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 501#L134 assume 0 != main_~tmp~0; 528#L105 ~switchedOnBeforeTS~0 := 0; 529#L566 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 517#L587-1 [2021-10-13 00:26:23,446 INFO L793 eck$LassoCheckResult]: Loop: 517#L587-1 assume !false; 510#L870 assume test_~splverifierCounter~0 < 4; 511#L871 test_~tmp~7 := test_#t~nondet76;havoc test_#t~nondet76; 610#L879 assume !(0 != test_~tmp~7); 609#L879-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 608#L889 assume !(0 != test_~tmp___0~2); 606#L889-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 605#L899 assume 0 != test_~tmp___2~0; 603#L905-2 havoc __utac_acc__Specification5_spec__2_#t~ret44;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; 601#L799 __utac_acc__Specification5_spec__2_#t~ret44 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret44;havoc __utac_acc__Specification5_spec__2_#t~ret44; 597#L576 assume !(0 != ~pumpRunning~0); 595#L714 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 531#L746 assume !(0 != ~pumpRunning~0); 532#L721 havoc __utac_acc__Specification5_spec__3_#t~ret45, __utac_acc__Specification5_spec__3_#t~ret46, __utac_acc__Specification5_spec__3_~tmp~4, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~4;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;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; 591#L688 __utac_acc__Specification5_spec__3_#t~ret45 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~4 := __utac_acc__Specification5_spec__3_#t~ret45;havoc __utac_acc__Specification5_spec__3_#t~ret45; 576#L587 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4;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; 553#L799-1 __utac_acc__Specification5_spec__3_#t~ret46 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret46;havoc __utac_acc__Specification5_spec__3_#t~ret46; 554#L591 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 517#L587-1 [2021-10-13 00:26:23,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:23,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:26:23,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:23,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587638924] [2021-10-13 00:26:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:23,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,530 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:23,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1435857662, now seen corresponding path program 1 times [2021-10-13 00:26:23,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:23,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3354773] [2021-10-13 00:26:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:23,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,650 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:26:23,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:26:23,662 INFO L82 PathProgramCache]: Analyzing trace with hash 994612932, now seen corresponding path program 1 times [2021-10-13 00:26:23,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:26:23,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018163885] [2021-10-13 00:26:23,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:26:23,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:26:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,704 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:26:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:26:23,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:27:36,877 WARN L207 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:28:50,937 WARN L207 SmtUtils]: Spent 35.87 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:28:51,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:28:51 BoogieIcfgContainer [2021-10-13 00:28:51,134 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:28:51,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:28:51,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:28:51,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:28:51,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:26:20" (3/4) ... [2021-10-13 00:28:51,139 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:28:51,217 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:28:51,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:28:51,219 INFO L168 Benchmark]: Toolchain (without parser) took 152560.66 ms. Allocated memory was 104.9 MB in the beginning and 186.6 MB in the end (delta: 81.8 MB). Free memory was 64.2 MB in the beginning and 54.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 92.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,220 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:28:51,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.83 ms. Allocated memory is still 104.9 MB. Free memory was 63.9 MB in the beginning and 71.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 67.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,222 INFO L168 Benchmark]: Boogie Preprocessor took 70.84 ms. Allocated memory is still 104.9 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,223 INFO L168 Benchmark]: RCFGBuilder took 1317.95 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 65.8 MB in the beginning and 109.5 MB in the end (delta: -43.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,225 INFO L168 Benchmark]: BuchiAutomizer took 150229.86 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 109.5 MB in the beginning and 57.8 MB in the end (delta: 51.8 MB). Peak memory consumption was 111.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,226 INFO L168 Benchmark]: Witness Printer took 82.63 ms. Allocated memory is still 186.6 MB. Free memory was 57.8 MB in the beginning and 54.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:51,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 762.83 ms. Allocated memory is still 104.9 MB. Free memory was 63.9 MB in the beginning and 71.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 67.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.84 ms. Allocated memory is still 104.9 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1317.95 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 65.8 MB in the beginning and 109.5 MB in the end (delta: -43.7 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 150229.86 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 109.5 MB in the beginning and 57.8 MB in the end (delta: 51.8 MB). Peak memory consumption was 111.5 MB. Max. memory is 16.1 GB. * Witness Printer took 82.63 ms. Allocated memory is still 186.6 MB. Free memory was 57.8 MB in the beginning and 54.6 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 6 locations. The remainder module has 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 150.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 149.3s. Construction of modules took 0.3s. 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 51.0ms 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: 260 SDtfs, 640 SDslu, 300 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 389.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 869]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14829} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14a6c9a1=0, NULL=14829, NULL=0, NULL=0, NULL=38641, NULL=38665, NULL=38645, NULL=38660, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72afbf62=0, NULL=14830, NULL=0, tmp=1, NULL=0, tmp=0, NULL=38661, tmp___1=0, NULL=38646, NULL=0, NULL=0, NULL=38664, NULL=38643, NULL=38651, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=38650, NULL=38647, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2930623e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58ec9d58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79258876=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63b953de=59, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71bc413=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=38658, NULL=0, NULL=38662, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=38649, NULL=38648, NULL=0, NULL=38652, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2579f90c=0, NULL=38654, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca2c6e=0, retValue_acc=1, NULL=38653, NULL=0, NULL=0, NULL=38656, retValue_acc=1, tmp___2=59, tmp___0=0, NULL=38644, NULL=38663, splverifierCounter=0, NULL=0, NULL=38655, NULL=38669, head=0, NULL=0, NULL=0, tmp=0, NULL=14831, NULL=0, NULL=0, NULL=0, NULL=38642, NULL=38657, NULL=38659, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int switchedOnBeforeTS ; [L613] int waterLevel = 1; [L614] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L125] int retValue_acc ; [L126] int tmp ; [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L565] switchedOnBeforeTS = 0 [L860] int splverifierCounter ; [L861] int tmp ; [L862] int tmp___0 ; [L863] int tmp___1 ; [L864] int tmp___2 ; [L867] splverifierCounter = 0 Loop: [L869] COND TRUE 1 [L871] COND TRUE splverifierCounter < 4 [L877] tmp = __VERIFIER_nondet_int() [L879] COND FALSE !(\read(tmp)) [L887] tmp___0 = __VERIFIER_nondet_int() [L889] COND FALSE !(\read(tmp___0)) [L897] tmp___2 = __VERIFIER_nondet_int() [L899] COND TRUE \read(tmp___2) [L795] int retValue_acc ; [L798] retValue_acc = pumpRunning [L799] return (retValue_acc); [L574] switchedOnBeforeTS = isPumpRunning() [L714] COND FALSE !(\read(pumpRunning)) [L721] COND TRUE \read(systemActive) [L743] int tmp ; [L746] COND FALSE !(\read(pumpRunning)) [L580] int tmp ; [L581] int tmp___0 ; [L684] int retValue_acc ; [L687] retValue_acc = waterLevel [L688] return (retValue_acc); [L585] tmp = getWaterLevel() [L587] COND TRUE tmp != 2 [L795] int retValue_acc ; [L798] retValue_acc = pumpRunning [L799] return (retValue_acc); [L589] tmp___0 = isPumpRunning() [L591] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:28:51,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb2d9d1-b646-4f7c-b266-c088662fdb34/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...