./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN --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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:40:41,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:40:41,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:40:41,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:40:41,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:40:41,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:40:41,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:40:41,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:40:41,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:40:41,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:40:41,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:40:41,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:40:41,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:40:41,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:40:41,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:40:41,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:40:41,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:40:41,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:40:41,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:40:41,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:40:41,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:40:41,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:40:41,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:40:41,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:40:41,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:40:41,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:40:41,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:40:41,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:40:41,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:40:41,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:40:41,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:40:41,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:40:41,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:40:41,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:40:41,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:40:41,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:40:41,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:40:41,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:40:41,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:40:41,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:40:41,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:40:41,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 12:40:41,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:40:41,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:40:41,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:40:41,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:40:41,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:40:41,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:40:41,979 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:40:41,979 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:40:41,979 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:40:41,980 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:40:41,981 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:40:41,981 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:40:41,982 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:40:41,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:40:41,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:40:41,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:40:41,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:40:41,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:40:41,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:40:41,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:40:41,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:40:41,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:40:41,984 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:40:41,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:40:41,985 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:40:41,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:40:41,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:40:41,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:40:41,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:40:41,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:40:41,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:40:41,989 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:40:41,989 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_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2022-11-20 12:40:42,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:40:42,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:40:42,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:40:42,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:40:42,445 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:40:42,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-20 12:40:46,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:40:46,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:40:46,930 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2022-11-20 12:40:46,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/data/f35f89e97/cdaba34a8a514ac8a5d7c54d8bcbdf5b/FLAG9ff9cdc19 [2022-11-20 12:40:46,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/data/f35f89e97/cdaba34a8a514ac8a5d7c54d8bcbdf5b [2022-11-20 12:40:46,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:40:46,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:40:46,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:46,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:40:47,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:40:47,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:46" (1/1) ... [2022-11-20 12:40:47,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3643a574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47, skipping insertion in model container [2022-11-20 12:40:47,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:46" (1/1) ... [2022-11-20 12:40:47,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:40:47,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:40:47,396 WARN L237 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_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-20 12:40:47,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:47,530 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:40:47,559 WARN L237 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_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2022-11-20 12:40:47,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:47,703 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:40:47,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47 WrapperNode [2022-11-20 12:40:47,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:47,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:47,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:40:47,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:40:47,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,827 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 57, calls inlined = 173, statements flattened = 1197 [2022-11-20 12:40:47,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:47,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:40:47,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:40:47,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:40:47,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,926 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:40:47,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:40:47,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:40:47,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:40:47,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (1/1) ... [2022-11-20 12:40:47,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:40:47,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:47,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:40:48,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:40:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:40:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:40:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:40:48,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:40:48,232 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:40:48,249 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:40:49,277 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:40:49,289 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:40:49,289 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:40:49,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:49 BoogieIcfgContainer [2022-11-20 12:40:49,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:40:49,308 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:40:49,308 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:40:49,316 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:40:49,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:40:49,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:40:46" (1/3) ... [2022-11-20 12:40:49,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76dc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:40:49, skipping insertion in model container [2022-11-20 12:40:49,320 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:40:49,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:47" (2/3) ... [2022-11-20 12:40:49,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76dc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:40:49, skipping insertion in model container [2022-11-20 12:40:49,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:40:49,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:49" (3/3) ... [2022-11-20 12:40:49,327 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2022-11-20 12:40:49,440 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:40:49,440 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:40:49,441 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:40:49,441 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:40:49,441 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:40:49,441 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:40:49,441 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:40:49,442 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:40:49,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 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) [2022-11-20 12:40:49,489 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-11-20 12:40:49,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:40:49,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:40:49,498 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:49,498 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:49,499 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:40:49,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 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) [2022-11-20 12:40:49,514 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 208 [2022-11-20 12:40:49,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:40:49,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:40:49,516 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:49,516 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:49,523 INFO L748 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 200#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 229#L75true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 305#L68true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 33#L83true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 88#L320true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 66#L296true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 147#L586-2true [2022-11-20 12:40:49,523 INFO L750 eck$LassoCheckResult]: Loop: 147#L586-2true assume !false; 143#L587true assume test_~splverifierCounter~0#1 < 4; 97#L588true test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 209#L596true assume !(0 != test_~tmp~8#1); 131#L596-2true test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 173#L606true assume !(0 != test_~tmp___0~3#1); 264#L606-2true test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 284#L616true assume 0 != test_~tmp___2~0#1; 249#L622-2true assume { :begin_inline_timeShift } true; 267#L343true assume !(0 != ~pumpRunning~0); 69#L343-2true assume !(0 != ~systemActive~0); 219#L350-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 155#L139-5true __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 29#L217true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 263#L217-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 24#L360true assume { :end_inline_timeShift } true; 147#L586-2true [2022-11-20 12:40:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:49,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-20 12:40:49,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:49,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959916271] [2022-11-20 12:40:49,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:49,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:49,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1828258692, now seen corresponding path program 1 times [2022-11-20 12:40:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:49,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106284486] [2022-11-20 12:40:49,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:49,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:49,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289528, now seen corresponding path program 1 times [2022-11-20 12:40:49,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:49,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640582092] [2022-11-20 12:40:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:50,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:50,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640582092] [2022-11-20 12:40:50,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640582092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:50,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:50,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:40:50,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283557396] [2022-11-20 12:40:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:50,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:40:50,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:40:50,299 INFO L87 Difference]: Start difference. First operand has 318 states, 317 states have (on average 1.3533123028391167) internal successors, (429), 317 states have internal predecessors, (429), 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 3.8333333333333335) internal successors, (23), 5 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) [2022-11-20 12:40:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:50,412 INFO L93 Difference]: Finished difference Result 315 states and 415 transitions. [2022-11-20 12:40:50,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 415 transitions. [2022-11-20 12:40:50,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-11-20 12:40:50,426 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 305 states and 405 transitions. [2022-11-20 12:40:50,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 305 [2022-11-20 12:40:50,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 305 [2022-11-20 12:40:50,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 305 states and 405 transitions. [2022-11-20 12:40:50,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:50,432 INFO L218 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-20 12:40:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states and 405 transitions. [2022-11-20 12:40:50,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-11-20 12:40:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 1.3278688524590163) internal successors, (405), 304 states have internal predecessors, (405), 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) [2022-11-20 12:40:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 405 transitions. [2022-11-20 12:40:50,483 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-20 12:40:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:40:50,489 INFO L428 stractBuchiCegarLoop]: Abstraction has 305 states and 405 transitions. [2022-11-20 12:40:50,489 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:40:50,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 405 transitions. [2022-11-20 12:40:50,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 204 [2022-11-20 12:40:50,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:40:50,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:40:50,493 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:50,494 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:50,494 INFO L748 eck$LassoCheckResult]: Stem: 955#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 919#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 920#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 936#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 717#L83 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 718#L320 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 770#L296 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 698#L586-2 [2022-11-20 12:40:50,494 INFO L750 eck$LassoCheckResult]: Loop: 698#L586-2 assume !false; 873#L587 assume test_~splverifierCounter~0#1 < 4; 813#L588 test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 814#L596 assume !(0 != test_~tmp~8#1); 752#L596-2 test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 860#L606 assume !(0 != test_~tmp___0~3#1); 900#L606-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 950#L616 assume 0 != test_~tmp___2~0#1; 946#L622-2 assume { :begin_inline_timeShift } true; 947#L343 assume !(0 != ~pumpRunning~0); 761#L343-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 773#L427 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret17#1, isMethaneAlarm_~retValue_acc~7#1;havoc isMethaneAlarm_~retValue_acc~7#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 732#L139 isMethaneAlarm_#t~ret17#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~7#1 := isMethaneAlarm_#t~ret17#1;havoc isMethaneAlarm_#t~ret17#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~7#1; 733#L488 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 785#L431 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 879#L478 assume { :end_inline_deactivatePump } true; 783#L427-1 assume { :end_inline_processEnvironment } true; 784#L350-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 884#L139-5 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 707#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 708#L217-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 697#L360 assume { :end_inline_timeShift } true; 698#L586-2 [2022-11-20 12:40:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-20 12:40:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621050009] [2022-11-20 12:40:50,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:50,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1370684173, now seen corresponding path program 1 times [2022-11-20 12:40:50,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959948402] [2022-11-20 12:40:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:40:50,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:40:50,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959948402] [2022-11-20 12:40:50,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959948402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:50,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:50,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:50,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936842983] [2022-11-20 12:40:50,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:50,551 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:40:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:40:50,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:50,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:50,553 INFO L87 Difference]: Start difference. First operand 305 states and 405 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 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) [2022-11-20 12:40:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:50,691 INFO L93 Difference]: Finished difference Result 312 states and 392 transitions. [2022-11-20 12:40:50,692 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 392 transitions. [2022-11-20 12:40:50,695 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-11-20 12:40:50,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 392 transitions. [2022-11-20 12:40:50,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2022-11-20 12:40:50,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2022-11-20 12:40:50,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 392 transitions. [2022-11-20 12:40:50,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:40:50,701 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-20 12:40:50,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 392 transitions. [2022-11-20 12:40:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-11-20 12:40:50,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2564102564102564) internal successors, (392), 311 states have internal predecessors, (392), 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) [2022-11-20 12:40:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2022-11-20 12:40:50,715 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-20 12:40:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:50,717 INFO L428 stractBuchiCegarLoop]: Abstraction has 312 states and 392 transitions. [2022-11-20 12:40:50,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 12:40:50,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 392 transitions. [2022-11-20 12:40:50,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 214 [2022-11-20 12:40:50,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:40:50,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:40:50,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:50,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:50,721 INFO L748 eck$LassoCheckResult]: Stem: 1538#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1492#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~6#1, main_~tmp~1#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1493#L75 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1510#L68 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 1326#L83 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1327#L320 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1368#L296 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1311#L586-2 [2022-11-20 12:40:50,722 INFO L750 eck$LassoCheckResult]: Loop: 1311#L586-2 assume !false; 1451#L587 assume test_~splverifierCounter~0#1 < 4; 1405#L588 test_~tmp~8#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1406#L596 assume !(0 != test_~tmp~8#1); 1356#L596-2 test_~tmp___0~3#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1438#L606 assume !(0 != test_~tmp___0~3#1); 1473#L606-2 test_~tmp___2~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1529#L616 assume 0 != test_~tmp___2~0#1; 1521#L622-2 assume { :begin_inline_timeShift } true; 1522#L343 assume !(0 != ~pumpRunning~0); 1372#L343-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1373#L427 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret14#1, processEnvironment__wrappee__methaneQuery_~tmp~3#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~3#1; 1409#L401-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1410#L375-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret26#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~4#1;havoc isHighWaterSensorDry_~retValue_acc~4#1; 1464#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~4#1; 1407#L184-3 isHighWaterLevel_#t~ret26#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret26#1;havoc isHighWaterLevel_#t~ret26#1; 1408#L546-9 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1537#L546-11 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 1349#L552-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1350#L379-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1366#L367-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1274#L375-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1275#L401-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1383#L427-1 assume { :end_inline_processEnvironment } true; 1384#L350-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_#t~ret11#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;havoc isMethaneLevelCritical_~retValue_acc~2#1;isMethaneLevelCritical_~retValue_acc~2#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~2#1; 1462#L139-5 __utac_acc__Specification1_spec__1_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret10#1;havoc __utac_acc__Specification1_spec__1_#t~ret10#1; 1463#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1564#L217-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1310#L360 assume { :end_inline_timeShift } true; 1311#L586-2 [2022-11-20 12:40:50,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-20 12:40:50,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503899420] [2022-11-20 12:40:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:50,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2054199498, now seen corresponding path program 1 times [2022-11-20 12:40:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96580388] [2022-11-20 12:40:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:50,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2115033074, now seen corresponding path program 1 times [2022-11-20 12:40:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:40:50,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243950275] [2022-11-20 12:40:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:40:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:50,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:40:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:52,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:40:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:40:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:40:52 BoogieIcfgContainer [2022-11-20 12:40:52,689 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:40:52,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:40:52,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:40:52,691 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:40:52,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:49" (3/4) ... [2022-11-20 12:40:52,696 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 12:40:52,782 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:40:52,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:40:52,795 INFO L158 Benchmark]: Toolchain (without parser) took 5800.68ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 80.3MB in the beginning and 114.5MB in the end (delta: -34.2MB). Peak memory consumption was 273.5kB. Max. memory is 16.1GB. [2022-11-20 12:40:52,795 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:40:52,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.23ms. Allocated memory is still 123.7MB. Free memory was 80.3MB in the beginning and 61.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:40:52,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.62ms. Allocated memory is still 123.7MB. Free memory was 61.4MB in the beginning and 95.1MB in the end (delta: -33.7MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-20 12:40:52,797 INFO L158 Benchmark]: Boogie Preprocessor took 124.09ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 95.1MB in the beginning and 127.9MB in the end (delta: -32.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-11-20 12:40:52,798 INFO L158 Benchmark]: RCFGBuilder took 1353.70ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 89.3MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-20 12:40:52,799 INFO L158 Benchmark]: BuchiAutomizer took 3381.58ms. Allocated memory is still 157.3MB. Free memory was 89.3MB in the beginning and 116.6MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:40:52,799 INFO L158 Benchmark]: Witness Printer took 101.91ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:40:52,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.23ms. Allocated memory is still 123.7MB. Free memory was 80.3MB in the beginning and 61.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.62ms. Allocated memory is still 123.7MB. Free memory was 61.4MB in the beginning and 95.1MB in the end (delta: -33.7MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.09ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 95.1MB in the beginning and 127.9MB in the end (delta: -32.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1353.70ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 89.3MB in the end (delta: 38.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 3381.58ms. Allocated memory is still 157.3MB. Free memory was 89.3MB in the beginning and 116.6MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.91ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1457 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1457 mSDsluCounter, 830 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 701 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 586]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L235] int cleanupTimeShifts = 4; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L810] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L311] int retValue_acc ; [L312] int tmp ; [L316] FCALL select_helpers() [L317] FCALL select_features() [L318] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L318] RET, EXPR valid_product() [L318] tmp = valid_product() [L320] COND TRUE \read(tmp) [L322] FCALL setup() [L323] CALL runTest() [L305] CALL test() [L577] int splverifierCounter ; [L578] int tmp ; [L579] int tmp___0 ; [L580] int tmp___1 ; [L581] int tmp___2 ; [L584] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L586] COND TRUE 1 [L588] COND TRUE splverifierCounter < 4 [L594] tmp = __VERIFIER_nondet_int() [L596] COND FALSE !(\read(tmp)) [L604] tmp___0 = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp___0)) [L614] tmp___2 = __VERIFIER_nondet_int() [L616] COND TRUE \read(tmp___2) [L629] CALL timeShift() [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L352] CALL processEnvironment() [L424] int tmp ; [L427] COND FALSE !(\read(pumpRunning)) [L442] CALL processEnvironment__wrappee__methaneQuery() [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L416] CALL processEnvironment__wrappee__highWaterSensor() [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L377] CALL, EXPR isHighWaterLevel() [L538] int retValue_acc ; [L539] int tmp ; [L540] int tmp___0 ; [L544] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L544] RET, EXPR isHighWaterSensorDry() [L544] tmp = isHighWaterSensorDry() [L546] COND TRUE \read(tmp) [L547] tmp___0 = 0 [L551] retValue_acc = tmp___0 [L552] return (retValue_acc); [L377] RET, EXPR isHighWaterLevel() [L377] tmp = isHighWaterLevel() [L379] COND FALSE !(\read(tmp)) [L385] FCALL processEnvironment__wrappee__base() [L416] RET processEnvironment__wrappee__highWaterSensor() [L442] RET processEnvironment__wrappee__methaneQuery() [L352] RET processEnvironment() [L358] CALL __utac_acc__Specification1_spec__1() [L210] int tmp ; [L211] int tmp___0 ; [L215] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L215] RET, EXPR isMethaneLevelCritical() [L215] tmp = isMethaneLevelCritical() [L217] COND FALSE !(\read(tmp)) [L358] RET __utac_acc__Specification1_spec__1() [L629] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 586]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L235] int cleanupTimeShifts = 4; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L810] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L311] int retValue_acc ; [L312] int tmp ; [L316] FCALL select_helpers() [L317] FCALL select_features() [L318] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L318] RET, EXPR valid_product() [L318] tmp = valid_product() [L320] COND TRUE \read(tmp) [L322] FCALL setup() [L323] CALL runTest() [L305] CALL test() [L577] int splverifierCounter ; [L578] int tmp ; [L579] int tmp___0 ; [L580] int tmp___1 ; [L581] int tmp___2 ; [L584] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L586] COND TRUE 1 [L588] COND TRUE splverifierCounter < 4 [L594] tmp = __VERIFIER_nondet_int() [L596] COND FALSE !(\read(tmp)) [L604] tmp___0 = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp___0)) [L614] tmp___2 = __VERIFIER_nondet_int() [L616] COND TRUE \read(tmp___2) [L629] CALL timeShift() [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L352] CALL processEnvironment() [L424] int tmp ; [L427] COND FALSE !(\read(pumpRunning)) [L442] CALL processEnvironment__wrappee__methaneQuery() [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L416] CALL processEnvironment__wrappee__highWaterSensor() [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L377] CALL, EXPR isHighWaterLevel() [L538] int retValue_acc ; [L539] int tmp ; [L540] int tmp___0 ; [L544] CALL, EXPR isHighWaterSensorDry() [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L544] RET, EXPR isHighWaterSensorDry() [L544] tmp = isHighWaterSensorDry() [L546] COND TRUE \read(tmp) [L547] tmp___0 = 0 [L551] retValue_acc = tmp___0 [L552] return (retValue_acc); [L377] RET, EXPR isHighWaterLevel() [L377] tmp = isHighWaterLevel() [L379] COND FALSE !(\read(tmp)) [L385] FCALL processEnvironment__wrappee__base() [L416] RET processEnvironment__wrappee__highWaterSensor() [L442] RET processEnvironment__wrappee__methaneQuery() [L352] RET processEnvironment() [L358] CALL __utac_acc__Specification1_spec__1() [L210] int tmp ; [L211] int tmp___0 ; [L215] CALL, EXPR isMethaneLevelCritical() [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L215] RET, EXPR isMethaneLevelCritical() [L215] tmp = isMethaneLevelCritical() [L217] COND FALSE !(\read(tmp)) [L358] RET __utac_acc__Specification1_spec__1() [L629] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:40:52,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e2afb9c-bfd4-4bf9-b170-8a35ad922362/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)