./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:00:07,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:00:07,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:00:07,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:00:07,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:00:07,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:00:07,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:00:07,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:00:07,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:00:07,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:00:07,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:00:07,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:00:07,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:00:07,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:00:07,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:00:07,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:00:07,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:00:08,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:00:08,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:00:08,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:00:08,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:00:08,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:00:08,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:00:08,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:00:08,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:00:08,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:00:08,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:00:08,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:00:08,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:00:08,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:00:08,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:00:08,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:00:08,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:00:08,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:00:08,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:00:08,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:00:08,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:00:08,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:00:08,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:00:08,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:00:08,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:00:08,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:00:08,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:00:08,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:00:08,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:00:08,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:00:08,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:00:08,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:00:08,096 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:00:08,096 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:00:08,096 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:00:08,097 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:00:08,098 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:00:08,098 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:00:08,098 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:00:08,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:00:08,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:00:08,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:00:08,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:00:08,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:00:08,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:00:08,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:00:08,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:00:08,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:00:08,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:00:08,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:00:08,101 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:00:08,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:00:08,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:00:08,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:00:08,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:00:08,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:00:08,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:00:08,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:00:08,104 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:00:08,104 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_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d [2021-10-28 23:00:08,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:00:08,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:00:08,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:00:08,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:00:08,419 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:00:08,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-10-28 23:00:08,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/data/62a1218bd/67ab9422e84b44da95ec194e8eda5abd/FLAGeb576ed7d [2021-10-28 23:00:09,128 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:00:09,129 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2021-10-28 23:00:09,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/data/62a1218bd/67ab9422e84b44da95ec194e8eda5abd/FLAGeb576ed7d [2021-10-28 23:00:09,402 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/data/62a1218bd/67ab9422e84b44da95ec194e8eda5abd [2021-10-28 23:00:09,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:00:09,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:00:09,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:09,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:00:09,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:00:09,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:09,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754bc496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09, skipping insertion in model container [2021-10-28 23:00:09,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:09,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:00:09,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:00:09,742 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_85a6f123-140d-4250-ab57-52b9b14c7be4/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-10-28 23:00:09,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:09,800 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:00:09,879 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_85a6f123-140d-4250-ab57-52b9b14c7be4/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2021-10-28 23:00:09,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:00:09,921 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:00:09,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09 WrapperNode [2021-10-28 23:00:09,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:00:09,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:00:09,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:00:09,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:00:09,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:09,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:00:10,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:00:10,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:00:10,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:00:10,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:00:10,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:00:10,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:00:10,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:00:10,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (1/1) ... [2021-10-28 23:00:10,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:00:10,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:00:10,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:00:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:00:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:00:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:00:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:00:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:00:11,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:00:11,197 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-10-28 23:00:11,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:11 BoogieIcfgContainer [2021-10-28 23:00:11,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:00:11,201 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:00:11,201 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:00:11,204 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:00:11,205 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:00:11,205 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:00:09" (1/3) ... [2021-10-28 23:00:11,206 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19dcd93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:00:11, skipping insertion in model container [2021-10-28 23:00:11,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:00:11,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:00:09" (2/3) ... [2021-10-28 23:00:11,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19dcd93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:00:11, skipping insertion in model container [2021-10-28 23:00:11,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:00:11,208 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:11" (3/3) ... [2021-10-28 23:00:11,209 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2021-10-28 23:00:11,251 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:00:11,252 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:00:11,252 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:00:11,252 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:00:11,252 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:00:11,252 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:00:11,253 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:00:11,253 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:00:11,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:00:11,298 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-28 23:00:11,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:00:11,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:00:11,306 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:00:11,306 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:11,306 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:00:11,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:00:11,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 85 [2021-10-28 23:00:11,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:00:11,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:00:11,318 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:00:11,318 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:11,323 INFO L791 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 103#L688true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 44#L696true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 130#L652true assume 0 != main_~tmp~4; 123#L625true havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L427-1true [2021-10-28 23:00:11,324 INFO L793 eck$LassoCheckResult]: Loop: 62#L427-1true assume !false; 115#L938true assume test_~splverifierCounter~0 < 4; 133#L939true test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 49#L947true assume !(0 != test_~tmp~10); 39#L947-1true test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 60#L957true assume !(0 != test_~tmp___0~3); 92#L957-1true test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 56#L967true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 19#L975-2true assume !(0 != ~pumpRunning~0); 37#L711true assume !(0 != ~systemActive~0); 90#L718true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 66#L536true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 89#L427true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 62#L427-1true [2021-10-28 23:00:11,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:11,330 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:00:11,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:11,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354383182] [2021-10-28 23:00:11,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:11,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:11,577 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:11,827 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:00:11,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:11,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1678143613, now seen corresponding path program 1 times [2021-10-28 23:00:11,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:11,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339575818] [2021-10-28 23:00:11,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:11,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:11,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:00:11,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:00:11,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339575818] [2021-10-28 23:00:11,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339575818] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:00:11,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:00:11,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:00:11,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704193478] [2021-10-28 23:00:11,941 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:00:11,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:00:11,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:00:11,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:00:11,960 INFO L87 Difference]: Start difference. First operand has 132 states, 131 states have (on average 1.5114503816793894) internal successors, (198), 131 states have internal predecessors, (198), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:00:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:00:12,001 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2021-10-28 23:00:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:00:12,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 188 transitions. [2021-10-28 23:00:12,008 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-28 23:00:12,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 125 states and 180 transitions. [2021-10-28 23:00:12,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 125 [2021-10-28 23:00:12,016 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 125 [2021-10-28 23:00:12,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 180 transitions. [2021-10-28 23:00:12,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:00:12,018 INFO L681 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:00:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 180 transitions. [2021-10-28 23:00:12,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-28 23:00:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.44) internal successors, (180), 124 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:00:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2021-10-28 23:00:12,053 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:00:12,053 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 180 transitions. [2021-10-28 23:00:12,053 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:00:12,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 180 transitions. [2021-10-28 23:00:12,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 83 [2021-10-28 23:00:12,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:00:12,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:00:12,057 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:00:12,058 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:12,058 INFO L791 eck$LassoCheckResult]: Stem: 396#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 331#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 332#L688 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 344#L696 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 345#L652 assume 0 != main_~tmp~4; 397#L625 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 370#L427-1 [2021-10-28 23:00:12,058 INFO L793 eck$LassoCheckResult]: Loop: 370#L427-1 assume !false; 371#L938 assume test_~splverifierCounter~0 < 4; 395#L939 test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 353#L947 assume !(0 != test_~tmp~10); 337#L947-1 test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 338#L957 assume !(0 != test_~tmp___0~3); 286#L957-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 362#L967 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 302#L975-2 assume !(0 != ~pumpRunning~0); 303#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 335#L769 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 343#L743-1 assume !(0 == ~pumpRunning~0); 298#L718 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 373#L536 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 374#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 370#L427-1 [2021-10-28 23:00:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:12,059 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:00:12,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:12,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454422323] [2021-10-28 23:00:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:12,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,115 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:00:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1068993908, now seen corresponding path program 1 times [2021-10-28 23:00:12,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:12,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939018880] [2021-10-28 23:00:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:12,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:00:12,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:00:12,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:00:12,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939018880] [2021-10-28 23:00:12,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939018880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:00:12,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:00:12,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:00:12,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741908054] [2021-10-28 23:00:12,241 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:00:12,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:00:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:00:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:00:12,244 INFO L87 Difference]: Start difference. First operand 125 states and 180 transitions. cyclomatic complexity: 57 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) [2021-10-28 23:00:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:00:12,364 INFO L93 Difference]: Finished difference Result 166 states and 228 transitions. [2021-10-28 23:00:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:00:12,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 228 transitions. [2021-10-28 23:00:12,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-28 23:00:12,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 166 states and 228 transitions. [2021-10-28 23:00:12,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 166 [2021-10-28 23:00:12,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 166 [2021-10-28 23:00:12,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 166 states and 228 transitions. [2021-10-28 23:00:12,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:00:12,380 INFO L681 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:00:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states and 228 transitions. [2021-10-28 23:00:12,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-28 23:00:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 166 states have (on average 1.3734939759036144) internal successors, (228), 165 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:00:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2021-10-28 23:00:12,391 INFO L704 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:00:12,391 INFO L587 BuchiCegarLoop]: Abstraction has 166 states and 228 transitions. [2021-10-28 23:00:12,391 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:00:12,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 166 states and 228 transitions. [2021-10-28 23:00:12,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-28 23:00:12,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:00:12,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:00:12,394 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:00:12,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:00:12,395 INFO L791 eck$LassoCheckResult]: Stem: 697#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 627#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~7, main_~tmp~4;havoc main_~retValue_acc~7;havoc main_~tmp~4; 628#L688 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 640#L696 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 641#L652 assume 0 != main_~tmp~4; 698#L625 havoc test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 669#L427-1 [2021-10-28 23:00:12,395 INFO L793 eck$LassoCheckResult]: Loop: 669#L427-1 assume !false; 670#L938 assume test_~splverifierCounter~0 < 4; 696#L939 test_~tmp~10 := test_#t~nondet78;havoc test_#t~nondet78; 650#L947 assume !(0 != test_~tmp~10); 633#L947-1 test_~tmp___0~3 := test_#t~nondet79;havoc test_#t~nondet79; 634#L957 assume !(0 != test_~tmp___0~3); 584#L957-1 test_~tmp___2~0 := test_#t~nondet80;havoc test_#t~nondet80; 661#L967 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 599#L975-2 assume !(0 != ~pumpRunning~0); 600#L711 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 631#L769 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 639#L743-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret76, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 692#L544-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 693#L549-1 isHighWaterLevel_#t~ret76 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret76;havoc isHighWaterLevel_#t~ret76; 687#L889-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 570#L889-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 571#L895-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 644#L747-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 595#L718 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 673#L536 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 674#L427 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 669#L427-1 [2021-10-28 23:00:12,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:00:12,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:12,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512543975] [2021-10-28 23:00:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:12,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,443 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,512 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:00:12,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 87587064, now seen corresponding path program 1 times [2021-10-28 23:00:12,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:12,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625394346] [2021-10-28 23:00:12,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:12,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:00:12,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:00:12,548 INFO L85 PathProgramCache]: Analyzing trace with hash 543658258, now seen corresponding path program 1 times [2021-10-28 23:00:12,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:00:12,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033709767] [2021-10-28 23:00:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:00:12,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:00:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,633 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:00:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:00:12,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:01:14,322 WARN L207 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:02:15,812 WARN L207 SmtUtils]: Spent 28.84 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:02:15,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:02:15 BoogieIcfgContainer [2021-10-28 23:02:16,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:02:16,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:02:16,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:02:16,004 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:02:16,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:00:11" (3/4) ... [2021-10-28 23:02:16,007 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:02:16,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:02:16,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:02:16,141 INFO L168 Benchmark]: Toolchain (without parser) took 126734.50 ms. Allocated memory was 123.7 MB in the beginning and 172.0 MB in the end (delta: 48.2 MB). Free memory was 86.6 MB in the beginning and 50.6 MB in the end (delta: 36.0 MB). Peak memory consumption was 82.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,142 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 123.7 MB. Free memory was 94.5 MB in the beginning and 94.5 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:02:16,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.36 ms. Allocated memory is still 123.7 MB. Free memory was 86.2 MB in the beginning and 90.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.53 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 86.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,144 INFO L168 Benchmark]: Boogie Preprocessor took 51.95 ms. Allocated memory is still 123.7 MB. Free memory was 86.7 MB in the beginning and 83.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,144 INFO L168 Benchmark]: RCFGBuilder took 1142.63 ms. Allocated memory is still 123.7 MB. Free memory was 83.4 MB in the beginning and 96.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,145 INFO L168 Benchmark]: BuchiAutomizer took 124802.98 ms. Allocated memory was 123.7 MB in the beginning and 172.0 MB in the end (delta: 48.2 MB). Free memory was 96.2 MB in the beginning and 52.7 MB in the end (delta: 43.5 MB). Peak memory consumption was 100.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,146 INFO L168 Benchmark]: Witness Printer took 135.94 ms. Allocated memory is still 172.0 MB. Free memory was 52.7 MB in the beginning and 50.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:16,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 123.7 MB. Free memory was 94.5 MB in the beginning and 94.5 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 513.36 ms. Allocated memory is still 123.7 MB. Free memory was 86.2 MB in the beginning and 90.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.53 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 86.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.95 ms. Allocated memory is still 123.7 MB. Free memory was 86.7 MB in the beginning and 83.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1142.63 ms. Allocated memory is still 123.7 MB. Free memory was 83.4 MB in the beginning and 96.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 124802.98 ms. Allocated memory was 123.7 MB in the beginning and 172.0 MB in the end (delta: 48.2 MB). Free memory was 96.2 MB in the beginning and 52.7 MB in the end (delta: 43.5 MB). Peak memory consumption was 100.2 MB. Max. memory is 16.1 GB. * Witness Printer took 135.94 ms. Allocated memory is still 172.0 MB. Free memory was 52.7 MB in the beginning and 50.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 166 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 124.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 124.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 166 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 350 SDtfs, 313 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 937]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30494} State at position 1 is {NULL=0, NULL=0, NULL=30494, NULL=30504, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d7ac7d0=0, NULL=0, tmp___1=0, NULL=30498, NULL=0, NULL=30495, NULL=30501, cleanupTimeShifts=4, NULL=30509, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4689ac54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57d9057d=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, NULL=0, \result=1, NULL=30511, NULL=0, retValue_acc=0, tmp=1, NULL=30523, NULL=0, tmp___0=0, tmp=1, NULL=0, retValue_acc=1, NULL=30516, NULL=30518, NULL=30496, head=0, NULL=0, NULL=0, tmp=0, NULL=30507, NULL=0, NULL=0, NULL=0, NULL=0, NULL=30520, retValue_acc=0, NULL=30503, NULL=30506, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dcaea24=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e45499d=0, NULL=0, tmp___0=0, NULL=30517, NULL=30508, NULL=30515, tmp=0, NULL=30514, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2094ca81=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23e3470c=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=30522, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a1cb42f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a002ef9=69, \result=0, NULL=30519, NULL=0, NULL=30499, NULL=30505, \result=0, NULL=0, NULL=30497, NULL=30502, retValue_acc=1, NULL=30500, tmp=0, tmp___2=69, splverifierCounter=0, NULL=0, NULL=30510, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@503e614c=0, NULL=30521, NULL=30513} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L461] int waterLevel = 1; [L462] int methaneLevelCritical = 0; [L564] int cleanupTimeShifts = 4; [L704] int pumpRunning = 0; [L705] int systemActive = 1; [L643] int retValue_acc ; [L644] int tmp ; [L692] int retValue_acc ; [L695] retValue_acc = 1 [L696] return (retValue_acc); [L650] tmp = valid_product() [L652] COND TRUE \read(tmp) [L928] int splverifierCounter ; [L929] int tmp ; [L930] int tmp___0 ; [L931] int tmp___1 ; [L932] int tmp___2 ; [L935] splverifierCounter = 0 Loop: [L937] COND TRUE 1 [L939] COND TRUE splverifierCounter < 4 [L945] tmp = __VERIFIER_nondet_int() [L947] COND FALSE !(\read(tmp)) [L955] tmp___0 = __VERIFIER_nondet_int() [L957] COND FALSE !(\read(tmp___0)) [L965] tmp___2 = __VERIFIER_nondet_int() [L967] COND TRUE \read(tmp___2) [L922] systemActive = 1 [L711] COND FALSE !(\read(pumpRunning)) [L718] COND TRUE \read(systemActive) [L766] int tmp ; [L769] COND FALSE !(\read(pumpRunning)) [L740] int tmp ; [L743] COND TRUE ! pumpRunning [L881] int retValue_acc ; [L882] int tmp ; [L883] int tmp___0 ; [L541] int retValue_acc ; [L544] COND TRUE waterLevel < 2 [L545] retValue_acc = 1 [L546] return (retValue_acc); [L887] tmp = isHighWaterSensorDry() [L889] COND TRUE \read(tmp) [L890] tmp___0 = 0 [L894] retValue_acc = tmp___0 [L895] return (retValue_acc); [L745] tmp = isHighWaterLevel() [L747] COND FALSE !(\read(tmp)) [L420] int tmp ; [L421] int tmp___0 ; [L532] int retValue_acc ; [L535] retValue_acc = waterLevel [L536] return (retValue_acc); [L425] tmp = getWaterLevel() [L427] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:02:16,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85a6f123-140d-4250-ab57-52b9b14c7be4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...